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Our Sales SA positions will require 25-35% travel to conferences, partner offices, and customer sites. At RapidScale, exceptional technology is powered by exceptional people. We deliver secure, reliable managed and advisory services across private, public, and hybrid clouds, helping organizations innovate, adapt, and grow. As an Elite Broadcom VMware VCSP Partner and top partner with AWS, Azure, and Google, our solutions focus on business outcomes with embedded cyber resiliency and AI to protect today and enable tomorrow backed by the strength of the Cox family of companies. We are seeking a highly skilled and experienced Software Solutions Architect to join our growing team. The ideal candidate will have a deep understanding of software architecture, application modernization, and cloud-native development, with a strong background in Pre-Sales Solution Architecture. In this role, you will educate clients on modern software design, articulate how our software experts can help refactor and modernize applications, and oversee project plans that drive business value. This position requires a blend of technical expertise, strategic thinking, and excellent communication skills. Key Responsibilities: • Serve as a technical expert and trusted advisor, positioning RapidScale as a leader in software and application modernization during the sales process., • Conduct technical discovery workshops to identify pain points, gather requirements, and define solutions for clients seeking to modernize or refactor applications., • Lead software architecture and modernization strategy workshops, covering topics such as microservices, cloud-native design, DevOps, and CI/CD pipelines., • Architect software solutions on public cloud platforms (AWS, Azure, Google Cloud), leveraging deep expertise in cloud-native development and modernization tools., • Develop cost estimates, labor projections, and Statements of Work (SOWs) for modernization projects., • Collaborate in the creation of technical collateral, documentation, reference architectures, and sales presentation materials., • Provide technical training and enablement for Sales and Go-to-Market teams., • Ensure smooth handoff from pre-sales to implementation teams, clearly documenting and communicating proposed architectures for execution., • Work closely with Product teams, providing field-driven feedback to enhance solutions and capabilities., • Serve as a thought leader, speaking at industry events, publishing white papers, and contributing to case studies. Qualifications: Minimum: • Bachelor's degree in a related discipline and 6 years' experience in a related field. The right candidate could also have a different combination, such as a master's degree and 4 years' experience; a Ph.D. and 1 year of experience; or 10 years' experience in a related field, • Professional or Expert-Level certification in one or more major cloud platforms (AWS, Azure, Google Cloud)., • Experience working in fast-paced sales environments, particularly in pre-sales solution architecture., • Expertise in software architecture patterns, including microservices, monolithic refactoring, event-driven architecture, and serverless computing., • Strong understanding of DevOps, CI/CD pipelines, API design, and security best practices., • Proficiency in multiple programming languages such as Java, Python, C#, JavaScript, Go, or Rust., • Experience with containerization & orchestration technologies (Kubernetes, Docker, EKS, ECS, OpenShift)., • Hands-on experience with cloud migrations and application modernization initiatives., • Familiarity with Infrastructure as Code (IaC) tools (Terraform, CloudFormation, Ansible, Puppet). Preferred: • Cloud-native application development specialty certification (cloud-agnostic or platform-specific)., • Experience modernizing legacy systems and managing technical debt., • Hybrid cloud expertise across AWS, Azure, and Google Cloud., • Knowledge of AI/ML integration into software applications., • Experience with service mesh technologies (Istio, Linkerd) and API gateways. USD 126,200.00 - 189,200.00 per year Compensation: Compensation includes a base salary of $126,200.00 - $189,200.00. The salary rate may vary within the anticipated range based on factors such as the ultimate location of the position and the selected candidate's experience. In addition to the salary range identified herein, this role is also eligible for an annual incentive/commission target of $52,800.00. Benefits: The Company offers eligible employees the flexibility to take as much vacation with pay as they deem consistent with their duties, the company's needs, and its obligations; seven paid holidays throughout the calendar year; and up to 160 hours of paid wellness annually for their own wellness or that of family members. Employees are also eligible for additional paid time off in the form of bereavement leave, time off to vote, jury duty leave, volunteer time off, military leave, and parental leave. Applicants must currently be authorized to work in the United States for any employer without current or future sponsorship. In California, we will consider non-driving candidates who use alternate means of transportation in accordance with applicable law.

Who We Are Perchwell is the modern real estate listings platform built for agents to search smarter, collaborate better, and close deals faster. We are building the future of residential real estateʼs critical listings infrastructure: a platform where market research and client collaboration converge. Our modern architecture enables continuous innovation at a pace legacy systems cannot match, with AI-powered features and mobile-first capabilities designed for how agents actually work. As consumer expectations and technology evolve, Perchwell remains focused on our core vision: empowering real estate professionals with the most intelligent, data-driven, and connected platform in the industry. Backed by leading venture capital firms including Lux Capital and Founders Fund, along with strategic partnerships with some of the country's top Multiple Listing Services (MLSs), Perchwell represents the first major new platform to enter the listings technology market in decades. This unique combination of institutional investment and deep industry alignment provides both the resources and market validation needed to transform the multi-trillion dollar residential real estate industry. As a Senior SRE, you will help own and improve the technical foundations of Perchwell while exemplifying engineering rigor and excellence across our engineering culture and strategy. You will be helping execute large strategic technical initiatives within the SRE domain. You have deep experience in building and operating infrastructure for large production systems. You’ve owned or have highly opinionated views on what good observability is and help other teams see the light. You are rigorous and meticulous in your work and hold others to the same high engineering standards. You believe the best way to help others is to provide them the tools they need to get their job done in a safe and efficient manner and have a demonstrated history of success enabling product teams to quickly innovate and iterate. You will work closely with the VP of Engineering and other senior leaders to tackle and remediate our current problem set while also building net new capabilities. You will build important relationships and partner deeply with our product and QA organizations. The SRE team is responsible for building the ability to innovate faster in a safe and reliable way. Reliability, resiliency and adaptability are our north stars. This role has an on-call requirement. We believe that in an ever-changing, innovative environment, we do our best work when we are working as a team in-person. In this role, you’ll work out of our New York City HQ in Soho Manhattan at least 3 days/week. * Design and build scalable processes and solutions to fundamental engineering challenges * Design and manage scalable, secure AWS infrastructure * Partner with the Quality Team to own the CI/CD processes and enable fast, safe and frequent deployments * Contribute to and evolve our Kubernetes infrastructure and strategy * Build and manage safe self-service methods for our teams to manage their infra via Terraform and other automation tools * Be a champion of observability ( o11y ) by owning our o11y systems and establishing and enforcing best practices throughout the engineering organization around performance and service monitoring * Participate in and help improve our incident management and disaster recovery processes * Partner with FinOps and feature teams to manage infrastructure spending by identifying and optimizing costs saving strategies * BS or MS in Computer Science, related technical field, or equivalent experience * Distributed systems experience * Deep experience with AWS cloud services such as: EC2, RDS, EKS, CloudFront, ECR, S3, IAM, CodeBuild, Lambda, and Route53 * In-depth knowledge of Kubernetes, including experience with deploying, managing, scaling, and orchestrating clusters and automating/exposing this to other teams * You’ve built tools and or enabled automation for your team or others * You’ve used at least one programming language ( ex: python, golang, rust ) to solve problems and close feature gaps of your tools * Demonstrated pattern of systems thinking leading to organizational impact and strategic problem solving * The ability to go deep across service, database and infrastructure boundaries for design and performance related work * 5+ years of experience in a dedicated SRE role * AWS Well Architected Framework experience * Experience with Event Driven System designs and the required messaging technologies and patterns ( kafka, nats, aeron ) * Experience with security frameworks and tools for hardening environments and systems * Experience with different types of databases and their architectures * Experience with the Ruby on Rails ecosystem, and understanding of Rails-specific quirks * Experience with the management and scaling of Elasticsearch Salary Information To provide greater transparency to candidates, we share base salary ranges for all US-based job postings regardless of state. Our ranges are based on function and level benchmarked against similar stage growth companies. Final offer amounts are determined by multiple factors including skills, job-related knowledge and depth of work experience. The base compensation range for this position is expected to be between $170,000-$230,000/year + equity + benefits. Note: At this time, we are only considering candidates who are authorized to work in the U.S.

Job DescriptionCareer Renew is recruiting for one of its clients a Backend Engineer - Indexing - Crypto - this is an onsite role in New York or London. As a Backend Engineer, you will play a critical role in building and scaling our real-time data infrastructure at the forefront of crypto and social finance. You'll work on high-throughput data pipelines, analytics systems, and storage solutions in an environment where speed, ownership, and innovation are paramount. * Architect, build, and ship high-performance data solutions at speed, contributing directly to the growth of the world's largest crypto social network * Work across the data stack, from streaming pipelines, data modelling, analytics databases, and real-time processing systems * Rapidly prototype and iterate on new data features, balancing speed with quality in a fast-moving environment * Solve complex technical challenges around data consistency, performance, and scale in a space where innovation and efficiency are the upmost priority * Collaborate closely with a world-class team of engineers and product leaders to push boundaries and redefine what's possible Take full ownership of your work, from initial concept to production deployment and maintenance Who You Are * An engineer with strong experience in any of: backend systems, data engineering, distributed systems, or high-performance computing * Passionate about building highly-performant, scalable platforms that handle massive data volumes and enable real-time insights * Experience with databases, streaming systems, or analytics platforms (e.g. ClickHouse, TimescaleDB, or similar columnar/time-series databases) * Knowledge of Rust, Go, or other systems programming languages * A problem solver who thrives in ambiguity, quickly breaking down challenges and executing solutions * High-agency and ownership-driven, capable of leading features end-to-end with minimal guidance * Experienced in high-growth environments, startups, or fast-moving product teams where speed and impact matter * Excited to work alongside top-tier engineers and contribute to a platform that's redefining how people interact with crypto * Familiarity with crypto, DeFi, or blockchain technologies (nice to have) Why Join Us? If you're the type who thrives in chaos, loves ambitious problems, and wants to build something game-changing, we want to hear from you. At our core, we believe in: Speed over perfection - ship now, iterate later Ownership over bureaucracy - every person here makes big decisions Talent density over headcount - we hire the best, no exceptions Building for the future - crypto moves fast, and so do we

Job DescriptionCareer Renew is recruiting for one of its clients a Senior/Staff Rust Engineer - Crypto - this is a fully remote role for US-based candidates. We’re building the future of rollup infrastructure with a bold vision: synchronous cross chain composability. Today, rollups are siloed. Developers are forced to choose between scalability and interoperability. We think that’s a false choice. We are creating a modular rollup framework that allows chains to remain sovereign while achieving cross chain synchronous composability—no trusted bridges, no brittle async calls. We’re pioneering a new architecture where: * App-specific L3s can interoperate as smoothly as contracts on Ethereum. * Shared sequencing, preconfirmations, and unified execution environments unlock atomic, cross-chain interactions. * Developers no longer need to choose between performance and composability. “Imagine every rollup could synchronously compose with every other. No bridges, no delay, no fragmentation. Just fast, seamless cross-chain UX. That’s the future we’re building.” We’re early-stage, ambitious, and backed by some of the best minds in Ethereum. Come help us build the L3 Based Appchain Stack—an open, composable future for rollups. What You’ll Be Doing * Architect and implement key components of the Based Appchain Stack in Rust * Design low-level systems and interfaces for VMs, preconfirmations, and cross-rollup communication * Contribute to the design of shared sequencing and data availability integrations * Collaborate closely with Solidity engineers, researchers, and protocol designers * Engage with the Ethereum and rollup communities through events, conferences, and podcasts About You * 5+ years of software engineering experience, with strong focus on production grade Rust * Deep understanding of systems programming, concurrency, memory safety, and performance optimisation * Experience with Ethereum or other blockchain systems (client implementations, zk tooling, rollups, etc.) * Familiarity with L2 architectures like optimistic rollups, zk-rollups, modular stacks * Bonus: contributions to open-source Rust or crypto projects, familiarity with Cairo, zkVMs, Layer Zero, Succinct etc. Why Join Us? * Be part of a team that’s reshaping Ethereum scalability and rollup design * Work alongside top researchers and engineers in the crypto space * Enjoy a fully remote setup with flexible hours and regular international team off-sites * Unlimited vacation policy and top-tier health, dental, and vision coverage for U.S. employees Compensation & Package Salary + Heavy Equity shares.

Job Description About Voyant Photonics Voyant Photonics, based in the heart of New York City, is transforming machine perception with a new class of LiDAR devices that are compact enough to fit in the palm of your hand and powerful enough to measure range, velocity, and reflectivity with unparalleled accuracy. By leveraging cutting-edge silicon photonic chips smaller than your fingertip, we deliver sensors that are not only revolutionary in performance but also affordable enough to integrate into any system. Our technology disrupts the status quo of bulky, expensive, and power-hungry LiDAR systems, making high-precision sensing accessible for widespread adoption in robotics, autonomous vehicles, drones, industrial automation, and beyond. With Voyant, the next generation of machines can see, understand, and navigate the world like never before. Discover how we’re redefining what’s possible by making real products out of cutting edge research in silicon photonics. Position Overview As a Senior Software Engineer, you’ll develop the software that connects advanced LiDAR hardware to real-world applications. You’ll work across the full stack, from APIs and data pipelines to developer tools and testing frameworks, with a focus on performance, reliability, and ease of integration. The role offers broad technical exposure, significant ownership of design and implementation, and the opportunity to influence both product direction and technical decisions. You’ll see your work have immediate impact in customer deployments while collaborating closely with a small, fast-moving, and high performing engineering team. Key Responsibilities * Develop and maintain APIs and SDKs that enable seamless integration of our LiDAR sensors into customer applications * Implement efficient data processing pipelines and optimize networking protocols, data serialization, and performance for real-time, low-latency sensor data streaming * Build comprehensive testing frameworks and automated quality assurance systems for hardware-software integration * Create and maintain technical documentation, integration guides, and developer resources to support customer adoption * Develop internal tools for calibration, diagnostics, and manufacturing support * Deploy and maintain production systems using modern DevOps practices including CI/CD and containerization * Collaborate across the engineering team to solve diverse technical challenges as startup priorities evolve Qualifications * 3+ years of software engineering experience with strong problem-solving skills across multiple domains * Proficiency in systems programming languages (Rust or C++) for performance-critical applications * Experience building user-facing applications and tools, preferably with modern frameworks * Solid understanding of API design, documentation, and SDK development with experience shipping production APIs or SDKs used by external developers * Strong background in software testing, debugging, and performance optimization * Experience with data processing, serialization formats, and networking fundamentals * Proficiency with version control, CI/CD pipelines, and collaborative development practices * Familiar with networking infrastructure including UDP, Ethernet, and NTP/PTP protocols * Excellent communication skills and ability to work directly with customers and partners * Comfortable working in a fast-paced startup environment with changing priorities Preferred Qualifications * Experience with robotics, sensor systems, or hardware-software integration * Knowledge of point cloud processing libraries (PCL) or computer vision frameworks * Experience with ROS/ROS2 ecosystem and robotics development * Background in data visualization or building technical user interfaces * Experience with embedded or real-time systems, particularly on edge computing platforms like Jetson * Understanding of serialization protocols (Protocol Buffers, FlatBuffers, Cap'n Proto) * Proficiency with performance profiling, debugging tools, and system optimization (e.g., Valgrind, perf, or language-specific profilers) Benefits package * Competitive salary and meaningful equity package * Comprehensive health benefits (Medical, Dental, Vision) * Unlimited PTO and paid company holidays * Team events and company meetups * Hybrid or remote work environment with monthly travel for remote employees. * Complimentary lunch provided daily at our NYC office Equal Opportunity Employer Voyant Photonics is an equal opportunity employer committed to building a diverse and inclusive workplace. We welcome applicants from all backgrounds and do not discriminate based on race, color, religion, gender, gender identity or expression, sexual orientation, pregnancy, marital or partnership status, age, national origin, citizenship, veteran or military status, disability, medical condition, genetic information, caregiver status, or any other characteristic protected by law.

Job Description We are looking for a Low Latency Java Developer to join our client's New York technology team. This role is central to building and optimizing the ultra-low latency trading infrastructure that underpins our strategies. Candidates with investment bank or electronic trading backgrounds and proven experience in Aeron (similar to Sequencer) are strongly preferred. Key Responsibilities • Design, develop, and maintain low-latency Java trading applications., • Implement high-performance messaging systems leveraging Aeron., • Optimize systems for microsecond-level latency through JVM tuning, lock-free data structures, and concurrency design., • Partner with trading, quant, and infrastructure teams to deliver scalable solutions for production environments., • 5+ years of Java development experience with a strong focus on low-latency/high, • throughput systems., • Hands-on expertise with Aeron or similar messaging systems (Sequencer, Chronicle, • Queue, etc.)., • Strong background in multi-threading, concurrency, and lock-free programming., • Experience with networking protocols (TCP, UDP, Multicast)., • Proven track record in financial services, hedge funds, or investment banks., • Exposure to exchange protocols (FIX, ITCH, OUCH)., • Experience with C++ or Rust in low-latency contexts., • 5+ years of Java development experience with a strong focus on low-latency/high, • throughput systems., • Hands-on expertise with Aeron or similar messaging systems (Sequencer, Chronicle, • Queue, etc.)., • Strong background in multi-threading, concurrency, and lock-free programming., • Experience with networking protocols (TCP, UDP, Multicast)., • Proven track record in financial services, hedge funds, or investment banks., • Deep knowledge of JVM internals, GC tuning, and performance profiling., • Nice to Have, • Exposure to exchange protocols (FIX, ITCH, OUCH)., • Experience with C++ or Rust in low-latency contexts., • Familiarity with systematic trading or market data distribution.

Job Description CoreWeave is the AI Hyperscaler™, delivering a cloud platform of cutting edge services powering the next wave of AI. Our technology provides enterprises and leading AI labs with the most performant, efficient and resilient solutions for accelerated computing. Since 2017, CoreWeave has operated a growing footprint of data centers covering every region of the US and across Europe. CoreWeave was ranked as one of the TIME100 most influential companies of 2024. As the leader in the industry, we thrive in an environment where adaptability and resilience are key. Our culture offers career-defining opportunities for those who excel amid change and challenge. If you're someone who thrives in a dynamic environment, enjoys solving complex problems, and is eager to make a significant impact, CoreWeave is the place for you. Join us, and be part of a team solving some of the most exciting challenges in the industry. CoreWeave powers the creation and delivery of the intelligence that drives innovation. About this Role: We are seeking a highly experienced and strategic Principal Engineer to lead the architecture, development, and operations of our Observability product. In this role, you will help shape the vision and direction on how customers monitor, troubleshoot and run their AI workloads effectively, at scale. You will have direct access to customers and work closely with engineering stakeholders across multiple teams to advance the development of our unified Observability experience across CoreWeave products. What You'll Do: • Lead the strategy and implementation for Observability, ensuring alignment with business goals and performance objectives., • Design and implement advanced solutions, including low-latency, high-scale Observability pipelines across all products., • Build solutions that offer insights to customers for rapid troubleshooting of their AI workloads., • Champion initiatives to improve the reliability, durability, and self-healing capabilities of Observability metrics, and assume operational responsibilities., • Help shape customer experience by promoting unparalleled visibility into our systems' performance and reliability with customer facing metrics and dashboards., • Analyze telemetry for production systems to identify opportunities for improvement in performance and reliability., • Develop operational review practices for storage engineering to assess performance against targets and iterating on those targets., • Act as a trusted advisor to senior leadership, providing insights on storage industry trends and advocating for investments in storage technologies., • Collaborate with engineering, infrastructure, and product teams to ensure storage solutions align with evolving project requirements and technical architecture., • Mentor and guide engineering teams on best practices in product engineering, fostering a customer-focused approach to systems design and technical excellence.Who You Are:, • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field., • 10+ years of experience in distributed systems, with a focus on reliability and scale., • Proven experience leading storage product engineering projects and building products to address customer needs., • Proficiency in one or more programming languages (e.g. Go, C, Rust)., • Good understanding of distributed observability systems such as ClickHouse for telemetry at scale., • Strong understanding of cloud computing infrastructure using Kubernetes, scalable architectures, and automation., • Excellent analytical and problem-solving skills, with the ability to synthesize problem statements from interactions with customers and design solutions given ambiguous requirements., • Strong communication and interpersonal skills, able to convey storage engineering strategies and practices to technical and non-technical audiences. What We Offer The range we've posted represents the typical compensation range for this role. To determine actual compensation, we review the market rate for each candidate which can include a variety of factors. These include qualifications, experience, interview performance, and location. In addition to a competitive salary, we offer a variety of benefits to support your needs, including: • Medical, dental, and vision insurance - 100% paid for by CoreWeave, • Company-paid Life Insurance, • Voluntary supplemental life insurance, • Short and long-term disability insurance, • Flexible Spending Account, • Health Savings Account, • Tuition Reimbursement, • Ability to Participate in Employee Stock Purchase Program (ESPP), • Mental Wellness Benefits through Spring Health, • Family-Forming support provided by Carrot, • Paid Parental Leave, • Flexible, full-service childcare support with Kinside, • 401(k) with a generous employer match, • Flexible PTO, • Catered lunch each day in our office and data center locations, • A casual work environment While we prioritize a hybrid work environment, remote work may be considered for candidates located more than 30 miles from an office, based on role requirements for specialized skill sets. New hires will be invited to attend onboarding at one of our hubs within their first month. Teams also gather quarterly to support collaboration California Consumer Privacy Act - California applicants only CoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information. As part of this commitment and consistent with the Americans with Disabilities Act (ADA), CoreWeave will ensure that qualified applicants and candidates with disabilities are provided reasonable accommodations for the hiring process, unless such accommodation would cause an undue hardship. If reasonable accommodation is needed, please contact: . Export Control Compliance This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process.

Job DescriptionCareer Renew is recruiting for one of its clients a Senior Protocol Engineer - this is a fully remote role for US-based candidates or Europe-based candidates (if they can overlap with EST timezone). We are a stablecoin platform for builders. With us, developers can create their stablecoins in minutes by extending our superior digital-dollar building block, and customize attributes such as branding, compliance behaviors, and yield distribution mechanics. By extending $M into their own stablecoin, businesses can monetize their digital dollar use cases and maintain control over their money tech stack, while not being burdened by operational heavy-lifting. We are seeking an experienced Senior Protocol Engineer to join our growing team. In this role, you will architect and develop audit-ready smart contracts in Solidity and/or Rust, enhance existing products, maintain comprehensive documentation, participate in code and design reviews to identify optimizations, and collaborate closely with designers, product managers, and other developers. Key Responsibilities * Design, develop, and maintain secure, audit-ready smart contracts using Solidity and/or Rust. * Improve and extend existing blockchain-based products and protocols. * Create and maintain comprehensive technical documentation. * Participate in code and design reviews to ensure quality, security, and performance. * Collaborate with cross-functional teams, including designers, product managers, and developers. Qualifications * Strong programming skills: ️‍proficiency in smart contract development using Solidity and/or Rust. * Proven ability to build and optimize secure systems for asset management and yield strategies. * Prior technical role at an established DeFi project. * Familiarity with cross-chain messaging protocols such as Wormhole and/or Hyperlane (nice to have). * Fluent in English. Skills & Attributes * Proactive problem solver: You have a forward-thinking mindset, actively identifies opportunities for improvement, and takes decisive action to resolve issues efficiently and effectively. * Collaborative communicator: You foster relationships with finance experts, blockchain specialists, back-end developers and designers. * Team-oriented mindset: You are always ready to help colleagues within and outside your team and seek assistance when needed * Delivery-focused: You have a clear understanding of the objectives and goals and direct your efforts towards achieving them. * High level of autonomy. Compensation * Competitive compensation (base salary with equity/ token grant) commensurate with experience. Benefits * Global team and flexibility: Join a truly global team with the flexibility to work remotely or from one of our hubs in NYC or Berlin. * Health and wellness: Enjoy comprehensive healthcare insurance coverage as well as a wellbeing allowance and gym membership to support your physical and mental health. * Customisable IT setup: Tailor your workspace with access to top-notch IT equipment. * Professional development: Benefit from an annual development budget to enhance your skills and grow professionally, including opportunities to participate in conferences and on-site company events worldwide. Compensation & Package Base salary with equity/ token grant) commensurate with experience

Job Description Location New York City Employment Type Full time Location Type Hybrid Department Business Development About Us Sei is the first parallelized layer 1 blockchain. By re-writing the most widely adopted execution environment in Web3, Sei is setting a new standard in blockchain performance and scalability. Apps on Sei benefit from both the performance of web2 and the decentralization and sovereignty of web3. For more detailed information visit Sei's official website. About the Role As a Developer Relations Engineer at Sei Development Foundation, you'll be the bridge between the core engineering team and the global developer community. Your mission is to empower developers to build innovative applications on Sei by providing exceptional support, creating educational content, and fostering a vibrant ecosystem. You'll play a pivotal role in shaping the developer experience, gathering feedback, and advocating for the needs of our community. Location: Must be based in NYC or able and willing to relocate. Responsibilities • Technical Support & Advocacy: Provide hands-on assistance to developers building on Sei, helping them troubleshoot issues, optimize performance, and understand best practices., • Content Creation: Develop and maintain technical resources such as tutorials, sample code, documentation, and blog posts to guide developers through building on Sei., • Community Engagement: Actively participate in developer communities across platforms like Discord, Telegram, and GitHub, addressing questions and fostering a collaborative environment., • Feedback Loop: Gather insights from the developer community to inform Sei's product roadmap and improve the overall developer experience., • Prior experience as a Developer Relations Engineer, Technical Support, Protocol Integrations or Software Engineer within crypto, • Proficiency in smart contract development: 2+ years experience with Solidity is a must; familiarity with YUL and Vyper is a plus, • STEM degree preferred (master degree is a plus) or equivalent experience, • Experience with Ethereum clients (e.g., Geth) and adjacent infrastructure, • Familiarity with tools like Foundry, Hardhat, Wallets, • Ability to explain complex technical concepts clearly and concisely, both verbally and in writing, • Experience with additional programming languages such as Rust or Go, • Proficiency in frontend development: 2+ years with JavaScript or TypeScript, • Active participation in open-source projects, especially within the blockchain space, • Familiarity with EVM indexers and dApps is a plus, • Skills in creating video tutorials, live coding sessions, or other multimedia educational content, • Experience in organizing developer events, workshops, or hackathons, • Experience with AI (ChatGPT, Claude, Gemini, etc.) and AI assisted tooling (Windsurf, Cursor etc.) preferred

Job DescriptionDuration - 8 months with extension& Visa- USC/GC Position Summary:Our Client is looking for a Senior Storage Engineer to assist with the implementation and operation of an on-premise Ceph storage cluster. Duties will include configuring services such as the Ceph file system and RADOS object gateway, investigating performance issues, and planning future hardware acquisition to grow the existing cluster. Principal Duties:1. Assist with the deployment and configuration of CephFS2. Monitor for issues and performance concerns with the file systems, clients, or the underlying infrastructure3. Integrate Ceph with our backup solution4. Advise and monitor the integration of the file system with HPC compute machines running Linux5. Write documentation for the cluster and its setup both for internal use (for cluster administrators) and external use (for our end-users, the researchers using the file system for various research activities)6. Analyze researchers use cases and help them adjust their workflow or tune the system towards their goals QualificationsAt least one year experience with Ceph and the Ceph file system is required. Advanced knowledge of Linux system administration and performance monitoring is required.Excellent verbal, analytical, project management and technical problem solving skills. Ability to communicate technical information to a non-technical audience. Strong work ethic to collaborate as a group, but also can carry a project to its end with minimal direction on your own. Preferred Qualifications:Knowledge of networking concepts such as the OSI model, DNS, firewalls, proxies, loadBalancing is required. Advanced concepts like BGP, VXLAN, and the Cisco/ARISTA/SONiCplatforms are a plus.Experience with programming languages such as C, C++Golang, Rust are desirable.Experience with Kubernetes and CSI plugins is a plus.Familiarity with the Prometheus/Grafana monitoring stack is a plus.

Job DescriptionSoftware Engineer Opportunity Our client is on crypto’s cutting-edge technology, and we’re looking for the right engineers to join them. This is a remote position for any US-based candidate. Our client's Blockchain Distribution Network (BDN) allows DeFi (Decentralized Finance) traders to make better trades by being better connected. The key difference is that in the decentralized world of DeFi, you need to be connected to everyone. Coinbase is one of their investors. They created the first and only high performance blockchain distribution network (BDN) with the best solution for Ethereum, BSC, and Polygon. The BDN and DeFi trading tools allow its users to win at crypto trading. The BDN utilizes a global network of servers optimized for network performance. Nodes access this network through open-source gateways and users can access it through the public API. As a Software Engineer, you will be a core member of the team responsible for supporting the development of the Solana platform. In this position, you will be expected to have a deep technical understanding of blockchain technologies. You will have the ability to work closely with a team of engineers to help with enhancing our products and services. Responsibilities: Optimize the performance of the BDN (Blockchain Distribution Network) by enhancing speed through innovations aligned with the blockchain protocol, network infrastructure, and consensus model Architect, develop, and maintain the Solana blockchain platform using Solana native Innovate and design solutions that capitalize on the swift data flow within the blockchain distribution network, ensuring the creation of compelling offerings Demonstrate proficiency in reading and maintaining the core code of Solana, contributing to a deeper understanding and effective utilization of the Solana blockchain ecosystem Engineer Geyser plugins to enhance functionality and broaden the capabilities of the overall system, contributing to the evolution of the blockchain technology landscape Stay up to date with the latest developments in blockchain technology Requirements: 5+ years in blockchain with 2+ years focused on Solana (Raydium, JITO, AMMs) ETH/Polygon/BSC protocols, and MEV knowledge 5+ years experience in designing, testing, and implementing scalable backend systems Multiple Solana programs written in Solana native programming Proficient in Rust or Golang languages or both Skilled in reading and modifying blockchain core code (geth, bor, prysm) Creative, independent, and collaborative team player with the ability to work in a fast paced environment Benefits: Competitive salaries, stock options, healthcare benefits, 401k plan with an employer match, flexible PTO, and remote work. We built a highly skilled team of business and engineering minds who are working on innovative, challenging and complex projects.If you think you fit the role please apply to join the blockchain journey.

Job Description Intro M0 is a stablecoin platform for builders. With M0, developers can create their stablecoins in minutes by extending $M - M0's superior digital-dollar building block, and customize attributes such as branding, compliance behaviors, and yield distribution mechanics. By extending $M into their own stablecoin, businesses can monetize their digital dollar use cases and maintain control over their money tech stack, while not being burdened by operational heavy-lifting. M0 is seeking an experienced Protocol Integration Engineer to join our growing team. In this role, you will enhance the growing set of $M Extensions projects, support partners' technical teams, improve existing products, and create and maintain comprehensive documentation. Key Responsibilities * Adjust existing Solidity and/or Rust(Solana) M Extensions Frameworks to the external partners' needs. * Maintain and enhance API/SDKs and Web3 infrastructure projects in TypeScript to meet partner needs. * Ensure consistency and quality of M0 partners' extensions and integrations. * Educate partners and their engineering teams about the core functionality of the M Extensions Frameworks. * Write comprehensive documentation, test suites, and deployment scripts. * Participate in code and design reviews to ensure quality, security, and performance. Qualifications * Strong programming skills: proficiency in smart contract development and/or full-stack engineering. * Proficient in TypeScript. * Prior technical role at an established DeFi project. * Familiarity with DeFi protocols and cross-chain messaging protocols. * Strong communication and writing skills. * Fluent in English. Skills & Attributes * Proactive problem solver: You have a forward-thinking mindset, actively identifies opportunities for improvement, and takes decisive action to resolve issues efficiently and effectively. * Collaborative communicator: You foster relationships with finance experts, blockchain specialists, back-end developers and designers. * Team-oriented mindset: You are always ready to help colleagues within and outside your team and seek assistance when needed * Delivery-focused: You have a clear understanding of the objectives and goals and direct your efforts towards achieving them. * High level of autonomy. Compensation Global team and flexibility: Join a truly global team with the flexibility to work remotely or from one of our hubs in NYC or Berlin. * Health and wellness: Enjoy comprehensive healthcare insurance coverage as well as a wellbeing allowance and gym membership to support your physical and mental health. * Customizable IT setup: Tailor your workspace with access to top-notch IT equipment. * Professional development: Benefit from an annual development budget to enhance your skills and grow professionally, including opportunities to participate in conferences and on-site company events worldwide.

Job DescriptionCareer Renew is recruiting for one of its clients a Senior Core Systems Engineer - Crypto - this is a fully remote role for candidates based in US/EU. Join a stellar team of leaders and experts in blockchain technology, cryptography, infrastructure, and security to build the backbone of blockchain wallet infrastructure for the next financial era. We’re hiring a Core Systems Engineer to design, build and scale the systems at the heart of our platform: MPC, HSMs, TEEs, and the middleware that ties them together. You’ll work deep in the stack, building reliable distributed services and integrating them with cloud, hardware, and blockchain environments. This is a low-level, high-impact role where performance, security, and correctness are non-negotiable. You’ll design protocols, optimize databases, and harden workflows that power financial applications at scale. You’ll collaborate across product, research, and security to turn advanced cryptography into Rust-based, production-ready infrastructure that is fast, resilient, and trusted. Preferred experience Responsibilities * Design, implement, and operate MPC signers, HSMs, and TEEs (e.g. AWS Nitro). * Build low-level services and middleware in Rust and other systems languages. * Architect distributed databases and stateful services for performance and reliability. * Develop secure APIs and networking between core systems and high-level services. * Optimize resource usage, latency, and throughput across critical workflows. * Collaborate with cryptography, infra, and product to bring new protocols into production. * Document core systems, share knowledge, and support client and partner discussions. Requirements * 8+ years of systems engineering experience with focus on security, infra, or backend. * Deep expertise in Rust, with strong low-level systems programming skills. * Proven experience building distributed systems, consensus mechanisms, or networks. * Hands-on experience with HSMs, MPC, TEEs, and cryptographic key management. * Strong knowledge of SQL and NoSQL databases in high-availability environments. * Familiarity with secure networking, applied cryptography, and defense-in-depth models. * Skilled in observability, debugging, and optimizing performance at scale. * Clear communicator, able to translate complex systems into practical solutions. Compensation & Package * Title: Senior Core Systems Engineer. * Salary: $180,000-260,000 per year (full-time). * Equity: 100-200 stock options vested over 4 years. * Benefits: Healthcare, 401K, and travel expenses. * Location: US or EU (remote-first, office optional). * Equipment: MacBook Pro + essentials.

Job Description Intro M0 is a stablecoin platform for builders. With M0, developers can create their stablecoins in minutes by extending $M - M0's superior digital-dollar building block, and customize attributes such as branding, compliance behaviors, and yield distribution mechanics. By extending $M into their own stablecoin, businesses can monetize their digital dollar use cases and maintain control over their money tech stack, while not being burdened by operational heavy-lifting. M0 is seeking an experienced Senior Protocol Engineer to join our growing team. In this role, you will architect and develop audit-ready smart contracts in Solidity and/or Rust, enhance existing products, maintain comprehensive documentation, participate in code and design reviews to identify optimizations, and collaborate closely with designers, product managers, and other developers. Key Responsibilities * Design, develop, and maintain secure, audit-ready smart contracts using Solidity and/or Rust. * Improve and extend existing blockchain-based products and protocols. * Create and maintain comprehensive technical documentation. * Participate in code and design reviews to ensure quality, security, and performance. * Collaborate with cross-functional teams, including designers, product managers, and developers. Qualifications * Strong programming skills: ️‍proficiency in smart contract development using Solidity and/or Rust. * Proven ability to build and optimize secure systems for asset management and yield strategies. * Prior technical role at an established DeFi project. * Familiarity with cross-chain messaging protocols such as Wormhole and/or Hyperlane (nice to have). * Fluent in English. Skills & Attributes * Proactive problem solver: You have a forward-thinking mindset, actively identifies opportunities for improvement, and takes decisive action to resolve issues efficiently and effectively. * Collaborative communicator: You foster relationships with finance experts, blockchain specialists, back-end developers and designers. * Team-oriented mindset: You are always ready to help colleagues within and outside your team and seek assistance when needed * Delivery-focused: You have a clear understanding of the objectives and goals and direct your efforts towards achieving them. * High level of autonomy. Compensation Global team and flexibility: Join a truly global team with the flexibility to work remotely or from one of our hubs in NYC or Berlin. * Health and wellness: Enjoy comprehensive healthcare insurance coverage as well as a wellbeing allowance and gym membership to support your physical and mental health. * Customizable IT setup: Tailor your workspace with access to top-notch IT equipment. * Professional development: Benefit from an annual development budget to enhance your skills and grow professionally, including opportunities to participate in conferences and on-site company events worldwide.

Job Description Location: Hybrid – Santa Clara, CA or New York, NY Type: Full-Time | Salary: $150K–$300K + Competitive Equity Visa Sponsorship: H-1B, O-1, OPT Available 🚀 About the Opportunity Initio Capital is hiring a Performance Tooling Engineer on behalf of a stealth-stage systems company building custom RISC-V infrastructure with AI acceleration at its core. The company is led by silicon and systems veterans and backed by tier-1 investors. Their vision: deliver ultra-efficient, secure, and high-performance compute across ML, analytics, and next-gen workloads. This role focuses on performance visibility at the lowest levels—instrumenting how deep learning workloads actually perform across simulators, FPGAs, and physical hardware. 🧠 About the Role As a GPGPU Performance Tooling Engineer, you’ll own and extend the company’s profiling infrastructure—building low-overhead instrumentation to track performance bottlenecks and throughput gaps on GPU-like accelerators. You’ll work hands-on with frameworks like Perfetto, contribute to open-source tooling, and collaborate closely with hardware and compiler teams to align insights with optimization strategies. 🔧 What You’ll Do * Build and extend internal performance tooling, with a focus on Perfetto-based profiling * Develop instrumentation layers for real-time and post-run analysis across simulators, emulation, FPGAs, and silicon * Analyze bottlenecks in memory bandwidth, latency, and compute throughput on custom GPGPU-like architectures * Collaborate with software, compiler, and silicon design teams to prioritize optimizations * Automate collection and visualization of performance signals for hardware bring-up and AI inference workflows * Contribute back to open-source projects where appropriate ✅ What We’re Looking For * 2–5+ years of experience in low-level systems profiling or performance tooling * Deep fluency in Perfetto, Protobuf, and systems programming (C or C++) * Strong understanding of computer architecture, memory systems, and runtime behavior * Experience building and interpreting GPGPU performance traces * Ability to work independently and collaboratively across deep technical domains 🟢 Bonus Points * Experience profiling GPGPU execution and optimizing ML workloads * Familiarity with deep learning frameworks like PyTorch or TensorFlow * Knowledge of memory subsystem bottlenecks (e.g., DRAM bandwidth, shared memory stalls) * Working proficiency in Rust or scripting languages used in performance tooling * Contributions to open-source observability, tracing, or instrumentation frameworks 💸 Compensation & Perks * Salary: $150K – $300K * Equity: Competitive early-stage grant * Hybrid in Santa Clara, CA or New York, NY * Visa sponsorship available (H-1B, O-1, OPT) * Join a founding engineering team at the edge of silicon and software * Shape the performance visibility layer that powers next-gen AI acceleration If you want to build the tools that uncover what truly limits performance in modern compute systems—this is the role. Apply now to join a deeply technical, mission-driven team.

Job DescriptionCareer Renew is recruiting for one of its clients a Senior Rust Engineer - Crypto - candidates can be based in EST to EET timezones. We want to solve security so that crypto can win. We have started a company designed to safeguard crypto, and have raised over $4.5M from world-class investors like Nascent, Figment Capital, RobotVC, and others. We started in the aftermath of the Nomad hack. We spoke with affected users, DeFi founders, and engineers, uncovering a frightening reality: many can’t sleep for fear of being hacked, and some have even left the space altogether. Our entire industry's credibility has suffered from these daylight robberies, with billions of dollars lost in hacks. This experience marked the true beginning, and our team is on a mission to make top-tier crypto security absolute and accessible. We believe hack prevention must be proactive and impossible to circumvent. We are building the Credible Layer, a step-level improvement for on-chain security, by creating an on-chain protocol and off-chain infrastructure that enables protocols to enforce security rules for every transaction that interacts with them. On top of that, we deeply believe that open-security is net-possitive for the space, building a whole platform so that end-users coalesce on the Credible Layer as the focal point for the security of every ecosystem. We are a team that deeply cares about the space and believes the technology and practices are here to help the industry become trustworthy for everyday people and institutions alike. We have been collaborating with the developer community and industry for the last years and are excited about making long-lasting contributions together. The Role As a Senior Rust Engineer you will work on bleeding-edge infrastructure that safeguards the crypto industry. You will play a crucial role in shipping cutting-edge features that extend the EVM to enable security rules to be checked after every state transition, right at the heart of our infrastructure. Our ideal candidate has a T-shaped skillset, a wide range of technical breadth, and deep knowledge in a specific area across our stack (EVM, performance, database, optimization, debugging). We're looking for engineers who can support us with shipping robust code, shipping performant code, and shipping more code, faster. By joining our team, we offer an exciting opportunity for you to contribute to core open-source crypto infrastructure and the ability to solve novel and complex problems. Key Responsibilities * Design, drive and own complex features throughout the whole lifecycle with strong focus on performance and benchmarking. Particularly in extending the EVM with security-focussed precompiles or improving its performance with parallel processing optimizations. * Collaborate & communicate effectively across teams. * Emphasis on fast iteration cycles driven by performance benchmarking and robust testing practices. * Ability to context-switch between delivering features, supporting bug fixing, and reviewing work * Share innovative ideas to contribute to the team roadmap and consistently raise the bar for others with impactful contributions. What we are looking for * Proven track record of shipping & maintaining complex and performant Rust code to production. * A deep understanding of the Rust language and ecosystem. * Deep understanding of the Ethereum ecosystem, particularly EVM and the Execution layer. * Engineers with a strong sense of ownership, a passion to improve existing systems, and the ability to work autonomously and solve problems independently. * A collaborative and self-driven individual with excellent communication skills and the ability to work collaboratively across teams. * Strong background in low-level system programming and relevant optimizations, such as parallel computing architectures, profiling, and memory management Nice to have * Experience in either of these: MEV infrastructure (e.g, Block Builders), HFT systems, Real-time data processing, database design, Ethereum client development (preferably Reth/Revm). * Knowledge of Blockchain architectures (particularly Ethereum Rollups, Ethereum Mainnet) and their various components (consensus, networking, etc.). * Familiarity with System Reliability Engineering (SRE) practices and observability tools for debugging or optimizing the systems you develop. * Familiarity with Database optimizations, lock-free algorithms, concurrent data structures, and SIMD or other CPU-level optimizations. Why join us * Be part of the Founding team. * Work on one of the most challenging topics in web3. * Be the owner of your project and build it from the ground up. * Deeply impactful work for the entire industry. * You’ll join a team that appreciates and embraces shitposting. What we offer * Flexible PTO * Health Insurance * Major industry conferences and events covered * Remote-first, with a hub in NYC * New MacBook

Job DescriptionAI Systems Engineer Title: AI Systems Engineer Location: FULLY remote! Salary: $175k-$250k base + RSUs + Full Benefits Requirements: 3+ years of Systems Engineering/DevOps/AI Infrastructure, AI, Python/Golang/Rust, and HPC experience Our HPC infrastructure goes beyond just the GPU - allowing companies to train, iterate, and deploy AI & ML projects faster than ever! We specialize in high-performance GPU cloud solutions tailored for AI & ML projects and cutting-edge infrastructure (including GPU clusters, high-speed networking, and scalable storage) to support demanding workloads. Our services are designed to optimize performance, reliability, and affordability for AI researchers, ML engineers, and enterprises. We're currently experiencing MASSIVE GROWTH... Our revenue grew over 95% in the last YEAR! We have made several acquisitions and formed several partnerships during this period of growth, and we need YOUR HELP to keep it going... We're currently seeking a talented and highly motivated AI Systems Engineer to design, build, and optimize the infrastructure that powers AI-driven applications. You'll work at the intersection of hardware, software, and data - enabling efficient deployment of AI models and solutions at scale. The ideal candidates have a strong background in systems engineering, high-performance computing, software defined networking, and general software development, with some experience in machine learning and deploying/maintaining AI systems in production. What You'll be Doing • AI Infrastructure Design and Development:, • Design and implement scalable AI/ML infrastructure., • Optimize AI pipelines for performance and reliability., • Integrate AI models using CI/CD best practices., • Model Deployment and Optimization:, • Deploy AI models in various environments (cloud, edge, on-premises)., • Optimize inference performance for latency, throughput, and energy efficiency., • Use tools like TensorRT and ONNX to accelerate models., • Systems Engineering:, • Maintain HPC clusters, GPUs, and distributed systems., • Develop tools for system monitoring and troubleshooting., • Ensure AI system reliability through proactive maintenance., • Collaboration and Cross-Functional Work:, • Align AI systems with overall product architecture., • Support AI researchers with efficient data pipelines and computing environments., • Security and Compliance:, • Ensure compliance with security standards and data privacy regulations., • Secure sensitive data and models in production., • Emerging Technology Integration:, • Stay updated with AI and machine learning advancements., • 5+ years of Systems Engineering, DevOps, or AI/ML Infrastructure experience, • 2+ years of experience in High Performance Computing, • Experience building cloud computing platforms (from scratch is a huge plus), • Hands-on experience with AI frameworks (TensorFlow, PyTorch, etc.), • Experience deploying AI/ML models in production environments, • Strong knowledge of distributed systems & HPC for AI workloads, • Experience with containerization & orchestration tools (Docker, Kubernetes, etc.), • Programming skills in Golang, Python, or Rust, • Familiarity with AI platform tools (Mosaic AI, Run.AI, SageMaker, Vetex AI, etc.), • Familiarity with Infiniband and/or RoCEv2 networking, & NCCL, • Proficiency in using AI hardware accelerators (GPUs, TPUs, etc), • $175k - $250k/year DOE, • RSU's, • 5 weeks PTO, • 401k w/ match, • Comprehensive Benefit Plan - For this position, you must be currently authorized to work in the United States without the need for sponsorship for a non-immigrant visa. This job was first posted by CyberCoders on 08/05/2025 and applications will be accepted on an ongoing basis until the position is filled or closed.CyberCoders is proud to be an Equal Opportunity Employer All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, sexual orientation, gender identity or expression, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, status as a crime victim, disability, protected veteran status, or any other characteristic protected by law. CyberCoders will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable state and local law, including but not limited to the Los Angeles County Fair Chance Ordinance, the San Francisco Fair Chance Ordinance, and the California Fair Chance Act. CyberCoders is committed to working with and providing reasonable accommodation to individuals with physical and mental disabilities. Individuals needing special assistance or an accommodation while seeking employment can contact a member of our Human Resources team at to make arrangements.

Job DescriptionCareer Renew is recruiting for one of its clients a Senior Infrastructure Engineer - Crypto - this is a fully remote role for US-based candidates. Join a stellar team of leaders and experts in blockchain technology, cryptography, infrastructure, and security to build the backbone of blockchain wallet infrastructure for the next financial era. We’re hiring a Senior Infrastructure Engineer to design, operate, and scale the systems that power our platform. You’ll work at the intersection of blockchain, cybersecurity, and distributed infrastructure, ensuring our services are reliable, secure, and ready to meet the demands of a trillion-dollar financial industry. This role goes beyond maintaining servers. You’ll architect, automate and secure infrastructure, improve resilience, and embed best-in-class DevOps and SRE practices into our workflows. You’ll collaborate across engineering, product, and security to translate requirements into infrastructure that is scalable, cost-efficient, and secure. Preferred experience Responsibilities * Design, build, and maintain cloud infrastructure with a focus on scalability and security. * Architect and operate containerized and orchestrated systems (Docker, Kubernetes). * Automate provisioning and deployments using Terraform, Jenkins, and CI/CD pipelines. * Implement and maintain observability with Datadog across logs, metrics, and traces. * Optimize performance and reliability of Node.js applications and backend services. * Configure and manage secure enclaves (AWS Nitro) to harden critical workflows. * Partner with product and security to align infra decisions with roadmap and risk strategy. * Document systems, promote knowledge sharing, and support client discussions. Requirements * 8+ years of infrastructure, DevOps, or SRE experience in cloud-native systems. * Strong expertise with AWS (Lambda, EKS, API Gateway, DynamoDB, S3, CloudFormation, CloudWatch); GCP is a plus; IBM and Thales are a plus too. * Skilled in Infrastructure-as-Code (Terraform) and CI/CD automations. * Deep knowledge of Docker, Kubernetes, and containerized microservices. * Experience administering and tuning SQL and NoSQL databases. * Familiar with observability platforms (Datadog, ELK, Prometheus/Grafana). * Solid understanding of infrastructure security and applied cryptography fundamentals. * Proficiency in scripting and systems programming (Python, Go, Rust, or TypeScript). * Clear communication skills, ability to operate under pressure and make sound decisions. * Ideally, experience with blockchain networks and smart contracts. Compensation & Package * Title: Senior Infrastructure Engineer. * Salary: $180,000-260,000 per year (full-time). * Equity: 100-200 stock options vested over 4 years. * Benefits: Healthcare, 401K, and travel expenses. * Location: United States (remote-first, office optional). * Equipment: MacBook Pro + essentials.

Job Description About the Role We're looking for an Ethereum developer with reth experience to join our team building a Bitcoin signing system for the Sova Network. Your knowledge of reth's architecture and Rust-based Ethereum client development is exactly what we need. You'll help us design validator nodes and network architecture for our distributed transaction signing system. This is a remote role, and we're flexible on part-time arrangements if that works better for you. Key Responsibilities • Help design and implement a secure key management system used by all validators in the Sova Network, • Apply your Ethereum client experience to our validator network architecture, • Collaborate with cryptography specialists on distributed transaction signing, • Contribute to development of secure upgrade paths for the signer service, • Experience with Ethereum execution clients, especially reth, • Proficient in systems programming languages (Rust preferred), • Understanding of blockchain validator networks, • Knowledge of applied cryptography, • Familiarity with threshold signature schemes, • Experience with Shamir's Secret Sharing Protocol, • Knowledge of Bitcoin transaction models, • Background in distributed systems security You'll be part of the team building a threshold signature system run by staked validators on our network. Your experience with reth will be invaluable in designing secure validator node architecture, even if you're not an expert in the cryptographic components like FROST or Distributed Key Generation (DKG) Protocol. In this role, you'll work with our team to build a prototype using three testnet validators, beginning with Bitcoin regtest transactions. Your Ethereum client development experience - particularly with reth - provides a strong foundation for understanding validator consensus mechanisms and secure network design that we can apply to our Bitcoin signing implementation. Comp $180-220K + 1%+ token (flexible)

Job Description About Keyrock Since our beginnings in 2017, we've grown to be a leading change-maker in the digital asset space, renowned for our partnerships and innovation. Today, we rock with over 180 team members around the world. Our diverse team hails from 42 nationalities, with backgrounds ranging from DeFi natives to PhDs. Predominantly remote, we have hubs in London, Brussels and Singapore, also soon to be Paris, and host regular online and offline hangouts to keep the crew tight. We are trading on more than 80 exchanges, and working with a wide array of asset issuers. As a well-established market maker, our distinctive expertise led us to expand rapidly. Today, our services span market making, options trading, high-frequency trading, OTC, and DeFi trading desks. But we’re more than a service provider. We’re an initiator. We're pioneers in adopting the Rust Development language for our algorithmic trading, and champions of its use in the industry. We support the growth of Web3 startups through our Accelerator Program. We upgrade ecosystems by injecting liquidity into promising DeFi, RWA, and NFT protocols. And we push the industry's progress with our research and governance initiatives. At Keyrock, we're not just envisioning the future of digital assets. We're actively building it. Job description We're looking for a skilled Trader to enhance and optimize our options trading systems. In this role, you'll play a key part in shaping the team's future direction, challenging existing processes, and driving innovation. Key Responsibilities: * Manage risk and oversee trading for the desk’s options books * Analyze historical data to refine trading strategies and identify new opportunities * Design, implement, and execute profitable positional option strategies * Collaborate closely with developers and the commercial team to improve overall trading performance This position offers the opportunity to make a meaningful impact by contributing to both strategic decisions and hands-on trading operations. Background and experience We’re looking for a highly skilled options trader with a strong track record in systematic or semi-systematic trading, ideally within a top market-making firm. The ideal candidate will bring a deep understanding of the options trading landscape, a responsible risk appetite, and driven to make continuous improvement. * Proven experience in driving improvements in a trading environment, particularly in market-making or systematic strategies * Strong grasp of options trading concepts, including market making, positional systematic trading, and derivative strategies * At least four years of experience in the trading industry, ideally managing a profitable options book * Hands-on experience in TradeFi, DeFi, and/or crypto trading is strongly preferred * Understanding of crypto markets and their structure (a plus) * Ability to research, design, and implement option trading models and strategies * Proficiency in object-oriented programming languages, preferably Python, but also C#, C++, Java, or Rust * Entrepreneurial mindset with a problem-solving approach, quick decision-making skills, and a willingness to experiment and learn * Strong communication and collaboration skills, with the ability to work effectively with global teams from diverse backgrounds * Open to innovative approaches and new methodologies in a fast-paced, team-driven environment * Fluency in English Our recruitment philosophy We value self-awareness and powerful communication skills in our recruitment process. We seek fiercely passionate people who understand themselves and their career goals. We're after those with the right skills and a conscious choice to join our field. The perfect fit? A crypto enthusiast who’s driven, collaborative, acts with ownership and delivers solid, scalable outcomes. Our offer * A competitive salary package * Autonomy in your time management thanks to flexible working hours and the opportunity to work remotely * The freedom to create your own entrepreneurial experience by being part of a team of people in search of excellence As an employer we are committed to building a positive and collaborative work environment. We welcome employees of all backgrounds, and hire, reward and promote entirely based on merit and performance. Due to the nature of our business and external requirements, we perform background checks on all potential employees, passing which is a prerequisite to join Keyrock.

Job Description CoreWeave is the AI Hyperscaler™, delivering a cloud platform of cutting edge services powering the next wave of AI. Our technology provides enterprises and leading AI labs with the most performant, efficient and resilient solutions for accelerated computing. Since 2017, CoreWeave has operated a growing footprint of data centers covering every region of the US and across Europe. CoreWeave was ranked as one of the TIME100 most influential companies of 2024. As the leader in the industry, we thrive in an environment where adaptability and resilience are key. Our culture offers career-defining opportunities for those who excel amid change and challenge. If you're someone who thrives in a dynamic environment, enjoys solving complex problems, and is eager to make a significant impact, CoreWeave is the place for you. Join us, and be part of a team solving some of the most exciting challenges in the industry. CoreWeave powers the creation and delivery of the intelligence that drives innovation. What You'll Do: We are looking for a Senior Storage Engineer to play a key role in designing, building, and operating our high-performance storage systems. You will contribute to the evolution of CoreWeave's storage platform by building reliable, scalable, and high-throughput solutions. This role involves close collaboration with engineering teams across infrastructure, compute, and platform to ensure our storage services meet the needs of demanding AI workloads. About the role: • Design and implement storage solutions to support CoreWeave's growing AI and cloud infrastructure needs., • Contribute to the development of exabyte-scale, S3-compatible object storage and integrate dedicated storage clusters into diverse customer environments., • Work with technologies such as RDMA, GPU Direct Storage, SPDK, and distributed filesystems to optimize storage performance and efficiency., • Participate in efforts to improve the reliability, durability, and observability of our storage stack., • Collaborate with operations teams to monitor, troubleshoot, and improve storage systems in production environments., • Help develop metrics and dashboards to provide visibility into storage performance and health., • Analyze telemetry and system data to drive improvements in throughput, latency, and resilience., • Work cross-functionally with platform, product, and infrastructure teams to deliver seamless storage capabilities across the stack., • Share your knowledge and mentor other engineers on best practices in building distributed, high-performance systems.Who You Are:, • Bachelor's or Master's degree in Computer Science, Engineering, or a related field., • 6–10 years of experience working in storage systems engineering or infrastructure., • Strong hands-on experience with object storage or distributed filesystems in production environments., • Experience with one or more storage protocols (e.g. S3, NFS) and file systems such as Ceph, DAOS, or similar., • Proficiency in a systems programming language such as Go, C, or Rust., • Familiarity with storage observability tools and telemetry pipelines (e.g., ClickHouse, Prometheus, Grafana)., • Solid understanding of cloud-native infrastructure, Kubernetes, and scalable system architecture., • Strong debugging and problem-solving skills in distributed, high-performance environments., • Be Curious at Your Core, • Act Like an Owner, • Empower Employees, • Deliver Best-in-Class Client Experiences The base salary range for this role is $165,000 to $220,000. The starting salary will be determined based on job-related knowledge, skills, experience, and market location. We strive for both market alignment and internal equity when determining compensation. In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility). What We Offer The range we've posted represents the typical compensation range for this role. To determine actual compensation, we review the market rate for each candidate which can include a variety of factors. These include qualifications, experience, interview performance, and location. In addition to a competitive salary, we offer a variety of benefits to support your needs, including: • Medical, dental, and vision insurance - 100% paid for by CoreWeave, • Company-paid Life Insurance, • Voluntary supplemental life insurance, • Short and long-term disability insurance, • Flexible Spending Account, • Health Savings Account, • Tuition Reimbursement, • Ability to Participate in Employee Stock Purchase Program (ESPP), • Mental Wellness Benefits through Spring Health, • Family-Forming support provided by Carrot, • Paid Parental Leave, • Flexible, full-service childcare support with Kinside, • 401(k) with a generous employer match, • Flexible PTO, • Catered lunch each day in our office and data center locations, • A casual work environment While we prioritize a hybrid work environment, remote work may be considered for candidates located more than 30 miles from an office, based on role requirements for specialized skill sets. New hires will be invited to attend onboarding at one of our hubs within their first month. Teams also gather quarterly to support collaboration California Consumer Privacy Act - California applicants only CoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information. As part of this commitment and consistent with the Americans with Disabilities Act (ADA), CoreWeave will ensure that qualified applicants and candidates with disabilities are provided reasonable accommodations for the hiring process, unless such accommodation would cause an undue hardship. If reasonable accommodation is needed, please contact: . Export Control Compliance This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C. § 1157, or (iv) asylee under 8 U.S.C. § 1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process.

Job DescriptionCareer Renew is recruiting for one of its clients a Protocol Integration Engineer - this is a fully remote role for US based candidates or Europe-based candidates (if they can overlap with EST timezone) We are a stablecoin platform for builders. With us, developers can create their stablecoins in minutes by extending our superior digital-dollar building block, and customise attributes such as branding, compliance behaviours, and yield distribution mechanics. By extending $M into their own stablecoin, businesses can monetize their digital dollar use cases and maintain control over their money tech stack, while not being burdened by operational heavy-lifting. We are seeking an experienced Protocol Integration Engineer to join our growing team. In this role, you will enhance the growing set of $M Extensions projects, support partners' technical teams, improve existing products, and create and maintain comprehensive documentation. Key Responsibilities * Adjust existing Solidity and/or Rust(Solana) M Extensions Frameworks to the external partners' needs. * Maintain and enhance API/SDKs and Web3 infrastructure projects in TypeScript to meet partner needs. * Ensure consistency and quality of our partners' extensions and integrations. * Educate partners and their engineering teams about the core functionality of the M Extensions Frameworks. * Write comprehensive documentation, test suites, and deployment scripts. * Participate in code and design reviews to ensure quality, security, and performance. Qualifications * Strong programming skills: proficiency in smart contract development and/or full-stack engineering. * Proficient in TypeScript. * Prior technical role at an established DeFi project. * Familiarity with DeFi protocols and cross-chain messaging protocols. * Strong communication and writing skills. * Fluent in English. Skills & Attributes * Proactive problem solver: You have a forward-thinking mindset, actively identifies opportunities for improvement, and takes decisive action to resolve issues efficiently and effectively. * Collaborative communicator: You foster relationships with finance experts, blockchain specialists, back-end developers and designers. * Team-oriented mindset: You are always ready to help colleagues within and outside your team and seek assistance when needed * Delivery-focused: You have a clear understanding of the objectives and goals and direct your efforts towards achieving them. * High level of autonomy. Compensation * Competitive compensation (base salary with equity/ token grant) commensurate with experience. Benefits * Global team and flexibility: Join a truly global team with the flexibility to work remotely or from one of our hubs in NYC or Berlin. * Health and wellness: Enjoy comprehensive healthcare insurance coverage as well as a wellbeing allowance and gym membership to support your physical and mental health. * Customisable IT setup: Tailor your workspace with access to top-notch IT equipment. * Professional development: Benefit from an annual development budget to enhance your skills and grow professionally, including opportunities to participate in conferences and on-site company events worldwide. Compensation & Package base salary with equity/ token grant) commensurate with experience