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About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain projects and traditional financial institutions moving into crypto. Wintermute also has a Wintermute Ventures arm that invests in early stage DeFi projects. Wintermute was founded in 2017 by industry leaders and has successfully navigated crypto industry cycles. Culturally, we combine the best of the two worlds: the technology standards of high-frequency trading firms in traditional markets and the innovative and entrepreneurial culture of technology startups. To Wintermute digital assets is not just another asset class, we believe in the innovative potential of blockchain, the fundamental innovations, we have a long-term view on the digital asset market and are taking a leadership position in building an innovative and compliant market. Read more _ Working at Wintermute We are looking for a C++ Trading Platform Developer who is passionate about technology, interested in both low level details of how computer hardware operates and high-level design of large systems, as well as in data infrastructure. Someone who likes opening the hood to see how things work, has understanding of data structures, experience writing client-server network applications, and writing and optimising code for high performance. We welcome your previous experience from your own personal projects as well as commercial experience. We are looking for people who are passionate about technology and have experience looking under the hood to see how C++ standard libraries and other solutions are implemented. Interest in algorithmic and quantitative trading is a plus. At Wintermute you will have an opportunity to grow and make direct impact on trading by developing and improving all the parts of the trading platform, data infrastructure and related software, while also getting advice and guidance from very experienced developers and traders, including the founders. You will get a lot of independence and responsibility right away, and you'll learn at an unprecedented speed! No legacy systems, no multiple levels of approvals, no bureaucracy; all developers report directly to CTO who is very hands on. You are judged by what you deliver, not by the hours your do. It is up to you to make an impact! You will work alongside exceptionally sharp colleagues, learn how to write fail-safe code and improve performance and scalability of the trading system, a real challenge and a rare opportunity! We have flexible working arrangements, it’s the productivity that matters. What will you work on A great advantage of this position is that it is varied, and it is also up to you to shape it in the direction that matches your talents and company needs. The focus of the role would be to work on the global trading platform that spans across many continents, with real time data capture, order entry on dozens of exchanges, robust connectivity and built in monitoring. You would be working on expanding and scaling up our trading platform, mainly using C++ and Python. All the workstations and servers are running Linux, no windows in trading and the development team. We also keep things simple and easy to understand wherever possible which means designing, scalable and robust C++ and Python code is a main skill. We will share more technical details in the interviews. You will have opportunity to improve your knowledge of software optimisations, of building robust large-scale systems and to understand crypto currency trading. \n Hard Skills requirements • Strong C++ skills are required - we will test, • Experience with looking under the hood to see how C++ standard libraries work - we will test, • Strong analytical skills - we will test, • Understanding of networking, CPU and memory model, assembly language - desirable Join our dynamic team and benefit from: • Working at one of the most innovative trading firms globally., • Engaging projects offering accelerated responsibilities and ownership compared to traditional finance environments., • A vibrant working culture with frequent team meals, holiday celebrations, gaming events, and company-wide outings, including our annual Wintermute weekend getaway., • A Wintermute-inspired office in central London, featuring an array of amenities such as table tennis and foosball, personalized desk configurations, a cozy team breakout area with games and free food., • Great company culture: informal, non-hierarchical, ambitious, highly professional with a startup vibe, collaborative and entrepreneurial., • A performance-based compensation with a significant earning potential alongside standard perks like pension and private Health insurance. Note: • Although we are unable to accept fully remote candidates, we support significant flexibility in regards to working from home and working hours., • We offer UK work permits and help with relocation Find out more: • _, • _, • _, • _, • _ \n

The Blockchain & Climate Institute (BCI) is an international volunteers-led think tank supporting and advocating the application of blockchain technology in the global fight against climate change. Some knowledge on topics central to the BCI such as climate change, climate finance, and blockchain te

Full time - Permanent role - UK or EU As our Head of Protocols, you will be responsible for: Owning the Kiln Validators protocols roadmap, deciding on which protocols we will support and why, including setting a strategic direction for which themes of protocols we want to invest in Managing a productive team of protocol specialists and protocol engineers who understand the intricacies of protocols, run them in testnet, and liaise with foundation teams Launching new protocols at Kiln in partnership with our GTM team, ensuring everyone is sufficiently trained on them to sell and support our clients Representing Kiln at ecosystem events and writing educational content You will collaborate closely with customers, sales teams, product, and the infrastructure team at Kiln to execute the Kiln Validators roadmap. 3+ years of professional experience in the crypto industry. Passion for the industry and following recent developments. You are addicted to crypto Twitter :) 3+ years of management experience Demonstrated ability to understand technical concepts and work well with engineering teams. You are sufficiently curious and motivated to dig into the details of projects. Analytical mind and rigorous communication. You enjoy and are good at synthesizing complex information and conveying your learnings both in oral and written format Strong product acumen, you have opinions about great products and can put yourself in the shoes of both a retail and B2B user in the staking space Ability to thrive in a fast-paced startup/scaleup environment Native or perfectly fluent in English _: discuss, don't impose. We value humility in our hires. Trust and transparent communication Curiosity and ability to dive deep into topics and follow through Genuine passion for the blockchain and cryptocurrency space Kiln is the leading enterprise-grade rewards platform that enables institutional customers to stake assets and integrate staking & DeFi functionality into their offerings. Our API-first platform provides fully automated validators, staking & DeFi protocols access, and comprehensive data and commission management. With $13+ billion in crypto assets staked through our platform, Kiln has established a strong presence on Ethereum, managing over 4.3% of the network through 45,000+ validators — all with zero slashing events. Kiln serves more than 140 leading customers, including Binance, BitPanda, Bitgo, Fireblocks, VanEck, and TrustWallet. Our team of 90 ecosystem enthusiasts brings experience from industry leaders like Google, Circle, Ledger, Chainalysis, and other prominent technology and cryptocurrency companies. We've raised $30M in total funding from prominent investors including 1kx, _, Illuminate Financial, Consensys, Wintermute, Kraken Ventures... Join Kiln and help us make the web more secure, stable, decentralized, and fair! At Kiln, our _ drive us: Technical Excellence ensures top security and usability; Innovation-Driven Meritocracy elevates groundbreaking ideas; Trust and Transparency build reliability through open communication; and People First keeps our team and clients at the heart of everything we do. A fast-paced, bureaucracy-free work environment Equity share options in the business: if Kiln succeeds, we all succeed! Competitive salary Flexible holiday Flexible remote working Choose your IT equipment Internet connection : €50/month Significant personal development budget (books, training) Overseas tech conferences budget Kiln is an Equal Opportunity Employer We are committed to fostering an inclusive and diverse workplace where everyone is valued and respected. We welcome applications from all backgrounds, including women or persons with disabilities. Our thorough process ensures the best fit for both you and Kiln, and we strive to make each step valuable and efficient. Recruiter Interview (45 min) Take-home test (< 3 hours) Technical Interview (60 min) Core Values Interview (45 min) Founder Interview (30 min) Offer! Your personal information will be securely stored in our Applicant Tracking System (ATS) and will not be shared with external parties. We comply fully with GDPR regulations to protect your data and privacy. Please note that we do not sponsor visas for persons without work authorization in your location. This role is for full-time employees only (no B2B or contractors). Thank you!

1inch is the DeFi ecosystem building financial freedom for everyone. 1inch products help users and builders trade, hold and track digital assets - with the self-custody, comprehensive security and the intuitive user experience they need to unlock the potential of true crypto ownership. 1inch protocols and APIs provide core infrastructure across the DeFi industry and beyond. So if you’re someone who thinks big, moves fast and wants to make an impact right from day one, then get ready to join our industry-changing team. Location: We prioritise candidates who are based in Dubai then consider those working remotely in one of our European Hub Locations (UK, Spain or Germany). We are seeking a talented Data Scientist with focus on product analytics to join our Data & Analytics team and drive data-driven decision making across our organisation. In this role, you will analyse complex datasets, conduct research, and provide valuable insights to support product strategy and business growth. You must have Data Science experience. • Analyse and interpret large-scale on-chain and off-chain datasets to inform business decisions, • Design and maintain data collection processes and event storage systems, • Conduct research to identify patterns, trends, and growth opportunities, • Create intuitive dashboards and data visualisations for internal teams and external partners, • Propose and test hypotheses with empirical evidence, • Monitor and evaluate product metrics and user behaviour patterns, • Present findings and recommendations to stakeholder, • 3+ years of experience in data/product analytics, • BS in Computer Science, Engineering, Statistics, or related field, • Design and maintain data collection processes and event storage systems, • Conduct research to identify patterns, trends, and growth opportunities, • Experience creating intuitive dashboards and data visualisations for internal teams and external partners, • Excellent communication skills with ability to present complex findings to diverse stakeholders, • Proficiency in creating data visualizations and building analytical dashboards (Mixpanel, Metabase), • Intermediate SQL, Python knowledge, • Familiarity with A/B tests and Casual Inference, • Understanding of product analytics and user behaviour analysis, • Crypto/Web3 analytical stack (Dune, Nodes, Flipside), • Low level blockchain data understanding (traces, events), • Experience in uncovering business-driving data insights, • Join a young, creative team in a fast-paced and supportive environment, • We’re open to new ideas — if you’ve got a vision, pitch it and make it happen, • Enjoy competitive pay that matches your skills and experience, • Be part of a company that’s shaping the future of DeFi, • Take time when you need it — we offer unlimited vacation days, • Get fully compensated for your work gear — we’ll set you up for successWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Location: Remote - Preference for Europe/Dubai/UK but open to candidates based in EST time zones Compensation: $130K - $150K We are building a secure computation network that is fundamentally changing how high-value data is stored and used globally. Our decentralized technology expands beyond traditional blockchain transactions into new verticals like AI, biometric data, health data, voting, and consumer data using privacy-enhancing technologies (PETs). Backed by a record-setting seed round and founded by high-profile leaders from Uber, Indiegogo, and Coinbase, we are seeking a highly experienced Head of Community to drive our global strategy. This is a critical, deeply cross-organizational role where you will design and execute innovative strategies to bring to life a vibrant global community. You will serve as the pulse of the project, collaborating closely with senior Marketing, Product, Engineering, and Research teams to align community initiatives with the project's development and vision. Key Responsibilities: • Strategy & Growth: Develop and execute creative strategies to drive community growth and engagement with intentionality., • Program Leadership: Lead end-to-end community initiatives, including ambassador programs, interactive forums, competitions, and social media campaigns., • Cross-Org Alignment: Collaborate closely with Marketing, Product, Engineering, Developer Relations, and Research teams to ensure a cohesive community strategy., • Events & Hosting: Organize and host community AMAs, webinars, workshops, and Twitter/X Spaces, and participate in live events., • Sentiment & Feedback: Monitor and analyze community sentiment, trends, and feedback to inform product and marketing strategies., • Team Building: Recruit, train, and manage a team of community ambassadors, setting clear goals and metrics., • Risk Management: Lead crisis management and conflict resolution within the community., • Experience: 4+ years of experience as a community leader in crypto/Web3., • Crypto Fluency: Deeply embedded in crypto culture, fluent in its narratives and evolving ecosystem., • Scaling Track Record: Proven ability to build and scale communities, ambassador programs, and engagement campaigns., • Technical Grasp: Strong grasp of blockchain technology and decentralized systems., • Soft Skills: Excellent communicator with strong interpersonal skills and high emotional intelligence., • Strategic & Analytical: Strategic thinker and planner, skilled in data-driven engagement strategies, and possessing creative problem-solving abilities with a bias for action., • Leadership: Empathetic and curious leader who motivates teams and builds resilient, growth-driven cultures. Preferred Experience (Nice-to-Have): • Active personal Twitter presence., • Experience at an early-stage startup or a Web3 protocol., • Skilled in community platforms and social tools., • Compensation: Competitive compensation package, inclusive of a base salary ($130K - $150K) and a vast token allocation (token award)., • Flexibility: 100% remote-first organization (primarily focused on European and US East Coast time zones) with working hours adaptable to your lifestyle., • Time Off: 25 days of annual paid vacation, plus paid sick leave & parental leave., • Culture & Offsites: Twice a year company offsite to work and have fun as a team, plus a mentorship-oriented work culture., • Wellness: Company-paid Employee Assistance Program (mental, financial, and legal help) and a monthly coworking stipend up to €150., • Impact: Work on new, complex problems in an emerging and dynamic field (secure computation, PETs, AI) and learn from world-class domain experts. Due to the high volume of applications we anticipate, we regret that we are unable to provide individual feedback to all candidates. If you do not hear back from us within 4 weeks of your application, please assume that you have not been successful on this occasion. We genuinely appreciate your interest and wish you the best in your job search. Commitment to Equality and Accessibility: At MLabs, we are committed to offer equal opportunities to all candidates. We ensure no discrimination, accessible job adverts, and providing information in accessible formats. Our goal is to foster a diverse, inclusive workplace with equal opportunities for all. If you need any reasonable adjustments during any part of the hiring process or you would like to see the job-advert in an accessible format please let us know at the earliest opportunity by emailing human-resources@mlabs.city. MLabs Ltd collects and processes the personal information you provide such as your contact details, work history, resume, and other relevant data for recruitment purposes only. This information is managed securely in accordance with MLabs Ltd’s Privacy Policy and Information Security Policy, and in compliance with applicable data protection laws. Your data may be shared only with clients and trusted partners where necessary for recruitment purposes. You may request the deletion of your data or withdraw your consent at any time by contacting legal@mlabs.city.

Our Krakenites are a world-class team with crypto conviction, united by our desire to discover and unlock the potential of crypto and blockchain technology. What makes us different? Kraken is a mission-focused company rooted in crypto values. As a Krakenite, you’ll join us on our mission to accelerate the global adoption of crypto, so that everyone can achieve financial freedom and inclusion. For over a decade, Kraken’s focus on our mission and crypto ethos has attracted many of the most talented crypto experts in the world. Before you apply, please read the page to learn more about our internal culture, values, and mission. We also expect candidates to familiarize themselves with the Kraken app. Learn how to create a Kraken account . As a fully remote company, we have Krakenites in 70+ countries who speak over 50 languages. Krakenites are industry pioneers who develop premium crypto products for experienced traders, institutions, and newcomers to the space. Kraken is committed to , , and through our products like , , , and _. Become a Krakenite and build the future of crypto! Join our Exchange team and start building the internet of money. The Exchange team is responsible for everything to do with the trading backend services such as the matching engine, market data gateways, internal and external APIs, margin systems and various other trading services. The team is located globally and responsibilities are split into sub-teams, working with various tech stacks. Our teams code in C++, Go, Rust, and Python, depending on the product they are contributing to within Kraken. This role sits within the Trading Technologies sub-team, which owns the messaging and transport layer at the core of our trading infrastructure — built on Aeron for ultra-low-latency, reliable UDP messaging. You'll work directly on the systems that move market data, orders, and trade events across our exchange at microsecond scale. Develop and maintain core framework and key software components for the Kraken trading engine, with a fous on the Aeron-based messaging transport layer Design and implement low-latency, high-availability messaging solutions across unicast, multicast, and IPC transport paths Tune and profile the full system stack — CPU pinning, NUMA topology, kernel bypass, receive buffer sizing — to squeeze latency out of production infrastructure Build and extend Aeron Archive integrations for durable message replay and stream persistence Build and design solutions that mitigate risk, implement security, and protect both systems and data Write reusable, testable, and efficient code Collaborate with cross-functional teams and contribute to product roadmap accomplishment Work collaboratively on a distributed team, leveraging soft skills to effectively communicate and engage with stakeholders 5+ years experience working with modern C++ Prior experience in at least one of the following using Linux — distributed and/or highly-concurrent systems; low-latency and/or high-volume transaction environments Deep understanding of low-latency systems fundamentals: lock-free data structures, mechanical sympathy, cache-line discipline, busy-spin vs. park/wake tradeoffs Experience with Aeron or comparable messaging transports (e.g. Chronicle Queue, ZeroMQ, LMAX Disruptor) highly desirable Experience with UDP networking, multicast, and kernel-bypass techniques (e.g. DPDK, RDMA) a strong plus Familiarity with SBE (Simple Binary Encoding) or similar zero-copy serialisation formats a plus Experience profiling and optimising code (CPU, memory, network) — perf, flamegraphs, VTune, or equivalent High level of proficiency in Python, Rust, and SQL strongly preferred Demonstrated knowledge of order types, trading systems, and financial products is highly desirable Cryptocurrency/Blockchain familiarity highly preferable Proactive mindset with the ability to both prioritize tasks and adhere to aggressive deadlines BS in a technical or quantitative field Unless a specific application deadline is stated in the job posting, applications are accepted on an ongoing basis. Please note, applicants are permitted to redact or remove information on their resume that identifies age, date of birth, or dates of attendance at or graduation from an educational institution. We consider qualified applicants with criminal histories for employment on our team, assessing candidates in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance. Kraken is powered by people from around the world and we celebrate all Krakenites for their diverse talents, backgrounds, contributions and unique perspectives. We hire strictly based on merit, meaning we seek out the candidates with the right abilities, knowledge, and skills considered the most suitable for the job. We encourage you to apply for roles where you don't fully meet the listed requirements, especially if you're passionate or knowledgable about crypto! We may ask candidates to complete job-related skills or work-style assessments as part of our hiring process. These assessments are designed to evaluate competencies relevant to the role and are applied consistently across candidates for similar positions. Assessment results are considered alongside other relevant information, such as experience and interviews, and are not the sole basis for any employment decision. As an equal opportunity employer, we don’t tolerate discrimination or harassment of any kind. Whether that’s based on race, ethnicity, age, gender identity, citizenship, religion, sexual orientation, disability, pregnancy, veteran status or any other protected characteristic as outlined by federal, state or local laws. Stay in the know _ _ _ _

Bitfinex is a digital asset trading platform offering state-of-the-art services for digital currency traders and global liquidity providers. Founded in 2012, Bitfinex was one of the first professional platforms set up to accommodate for the booming interest in cryptocurrency trading. Since then, our team has gained invaluable experience whilst cementing our spot as the go-to platform for digital asset traders and institutions. Our Mission Our aim is to create a free and accessible global digital economy by disrupting the current financial services industry. Our team is entirely remote, composed of individuals with an ownership mentality; no one waits to be told what to do. Each member of the team is a highly motivated self-starter that is comfortable with autonomy and believes in lifelong learning. When we’re not working, we’re dreaming about it. We place our egos aside and thrive within a culture that fosters one another from the birth of a concept to launch of a product. At Bitfinex you have the freedom to work as you please - all that matters is execution. Join us and help lay the foundation for a decentralized future. Currently looking for: Senior Backend Developer [Remote] Key responsibilities As a senior Backend Developer, you will be a part of the team that works on the development of the backend components of all Bitfinex Services (main trading application, Bitfinex Pay, Lightning Network support, Blockchain integrations, ….). This includes: New Products and Features - Bitfinex continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry. Scalability - all backend services that power Bitfinex platform must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth. A good example are the renown Bitfinex API, the most solid, low-latency and complete in our industry. Security - Bitfinex makes Security its most important feature. The Backend Development team is responsible for building all the API services and backend processes with the highest security principles and standard, in order to protect the safety of the entire user base. • 6+ Years of Node/JavaScript experience Familiar with microservices architecture Have actively participated in the development of a complex platform Good experience in interacting with databases (MySQL, MongoDB) Ability to quickly learn new technologies Good understanding of security practices Nice to have Experience with blockchain integration Comfortable with high-availability concepts Ruby, Rust or C++ skills are a plus Other technologies of interest: Message queues (Redis), Caches and Job Queues

At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand for hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of blockchain to users around the world through leading products including OKX, OKX Wallet, OKLink, and more. You will drive the growth and market presence of OKX in MENA region, directly owning acquisition, activation, and trading-volume outcomes. Your mission: accelerate user growth, boost trading activity, and build OKX’s brand. Own and deliver the market growth plan for your market: new users, active traders, trading volume and retention. Monitor user trends, competitor activity, and regulatory shifts to shape market strategy and uncover new growth levers. Localize and execute paid-acquisition and referral campaigns: ensure messaging, targeting, and timing align with the market culture and digital landscape. Activate and coordinate local influencer/KOL and community programs: engage key voices, host local activations and amplify user engagement. Remove funnel friction: identify and fix conversion blockers, and recommend experiments to improve flow. Build and manage local ecosystems and partnerships: collaborate with local payment partners, trading communities, media, and events to grow reach. Track, analyze and report key growth metrics weekly: derive actionable market insights. Represent OKX in-market: attend local fintech/crypto events, promote brand awareness, and deliver user-facing engagements. Work closely with both regional and global OKX teams — marketing, product, CRM, and partnerships — to align priorities, share insights, and ensure all initiatives are integrated toward common growth targets. 7-10 years of experience in growth, marketing, or partnerships in fintech, crypto, or digital trading. Proven performance in your market: user acquisition, activation, and trading or transaction growth. Excellent understanding of the local digital, social and crypto ecosystem. Strong analytical skills and comfort making data-driven decisions. Fluent in Arabic and English; strong at stakeholder engagement and communication. Fast-moving, hands-on, execution oriented. Always focused on “what will move the needle. Competitive total compensation package. Learning & Development programs and education subsidies. Various team-building programs and company events. Wellness and meal allowances. Comprehensive healthcare schemes for employees and dependants. More that we love to tell you along the process! All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX’s Candidate Privacy Notice. Notice: All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website. Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX's _.

Tether, the founder of the first, largest, and most widely used stablecoin USD₮, is rapidly expanding into a wide range of sectors, including secure and unstoppable communication technologies, energy production, mining, and further fintech infrastructure. All of these themes share and are deeply rooted in the principles of Bitcoin, which include decentralization, resilience, openness, freedom, security, and scalability. Tether stablecoins are used to power a wide variety of enterprises, including exchanges, wallets, payment processors, and financial services, by facilitating the use of reserve-backed tokens across blockchain networks. Tether stablecoins offer a global, secure, and instant means of storing, transmitting, and receiving digital tokens at a fraction of the cost of alternative traditional financial solutions. Unwavering transparency is of paramount importance and central to Tether's foundational principles. Our dynamic team operates entirely remotely, uniting talent from every corner of the globe. Our journey has been marked by rapid growth and efficient operations, firmly establishing us as pioneers within the industry. If you possess a passion for venturing into uncharted territory and believe in your ability to conquer even the most formidable challenges, we eagerly invite you to engage with us. Join our mission, and together, let's lay the groundwork for a decentralized future that reshapes industries far beyond the realm of stablecoins. As a Senior Backend Developer, you will be a part of the team that works on the development of Tether backend components New Products and Features - Tether continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry. Scalability - all backend services that power Tether must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth. Security - Security is the most important feature. The Backend Development team is responsible for building all the services and core processes with the highest security principles and standard, in order to protect the safety of the entire user base. Exceptional Node/JavaScript skills Familiar with microservices architecture Have actively participated in the development of a complex platform Familiar with Peer-to-Peer technologies Good experience in interacting with databases (MySQL, MongoDB) Ability to quickly learn new technologies Good understanding of security practices Nice to have Experience with blockchain integration Comfortable with high-availability concepts Ruby, Rust or C++ skills are a plus Other technologies of interest: Message queues (Redis), Caches and Job Queues

Founded in 2015 with the mission to protect the open economy, OpenZeppelin is the world leader in securing blockchain applications and smart contracts. Our Open-Source Contract Libraries are a public good that have facilitated the transfer of over $35 trillion and are considered the industry standard for smart contract development. Our professional expertise integrates seamlessly into clients’ development lifecycles, enabling teams to plan, code, audit, deploy, and operate projects more quickly and securely. Please note: Always refer to OpenZeppelin's official job page for the most accurate information about our open roles, as we have seen multiple third party job sites posting inaccurate information. The Financial Institutions team at OpenZeppelin drives the adoption of security solutions for financial institutions moving onchain. As tokenization and digital assets gain momentum, we partner with the world's largest institutions to deliver industry-leading security audits and battle-tested open-source smart contract libraries. Our mission is to generate revenue through best-in-class security services while building innovative solutions for a rapidly evolving market. We operate cross-functionally with Pre-Sales, Partnerships, Ecosystem, Project Delivery, and Legal to ensure a seamless go-to-market strategy and flawless execution. As our first dedicated Institutional Sales Lead for the European market, you will be instrumental in executing our go-to-market strategy - from outbound prospecting to deal closure - while laying the foundation for a scalable sales organization. Your responsibilities will include: • Managing the full sales cycle with financial institutions, from lead generation and prospecting through to contract negotiation and deal closure., • Leading discovery conversations with key stakeholders - including C-suite executives and internal Solution Architects - to surface client needs and compellingly articulate OpenZeppelin's value proposition., • Driving regional revenue growth in the region by consistently meeting and exceeding your sales targets., • Identifying strategic partnerships in your region to generate qualified leads and accelerate deal velocity, then handing off to our Partnerships team at the right moment., • Staying ahead of rapidly evolving market trends and competitive dynamics to proactively shape outreach and positioning., • Representing OpenZeppelin at key European and global industry events, conferences, and trade shows to build relationships and uncover new business opportunities., • Maintaining accurate pipeline forecasts, tracking performance metrics, and continuously refining your sales approach using data-driven insights., • 6+ years of experience in enterprise or institutional sales, with a proven track record of consistently exceeding revenue targets., • Deep understanding of Web3, digital assets, and the tokenization landscape; hands-on experience in the crypto industry is a strong plus., • Based in the CEST timezone - preference for candidates located in London or Switzerland., • Exceptional communication, negotiation, and relationship-building skills, with the gravitas to engage C-suite and senior decision-makers., • A well-established network within the financial services or blockchain ecosystem, including founders, executives, and industry leaders., • A data-driven mindset combined with the creativity and adaptability to thrive in a fast-moving, high-ambiguity environment., • Demonstrated success working in a remote-first, globally distributed team., • Bachelor’s degree in business, finance, or a related field., • An existing network spanning TradFi asset managers, hedge funds, market makers, custodians, and financial intermediaries., • Experience rapidly generating and testing new sales motions ("fail fast") and distilling learnings for both clients and internal stakeholders., • Strong acumen in GTM engineering or AI-powered sales tooling., • Technical background or familiarity with smart contract development, particularly in Solidity., • Fluency in a second European language (French, German is particularly valued). This interview process consists of the following stages: • Recruiter Interview (30-45 minutes), • Hiring Manager Interview (45 minutes), • Team Interview (30 minutes), • Leadership Interview (30 minutes), • Paid work trial (lasting up to 10 days), • Reference checks Please let us know if you require any accommodations for the interview process, and we'll do our best to provide assistance. • Company in-person gatherings in different locations around the world 😎, • Fully remote work 🌎, • Flexible time off 🏝, • Paid parental leave 💙, • One time work-from-home equipment stipend of up to $500 USD 🪑, • Medical insurance coverage 🏥, • Learning & Development opportunities 🧠, • Work with a global team in a fast-growing industry 🚀 At OpenZeppelin, we are an equal opportunity employer and we value different perspectives. We are committed to building a diverse workforce. This includes but is not limited to gender, race, sexual orientation, religion, national origin and other characteristics that make each one of us unique. In this uniqueness, we find the most value. Come join us!

About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain projects and traditional financial institutions moving into crypto. Wintermute also has a Wintermute Ventures arm that invests in early stage DeFi projects. Wintermute was founded in 2017 by industry leaders and has successfully navigated crypto industry cycles. Culturally, we combine the best of the two worlds: the technology standards of high-frequency trading firms in traditional markets and the innovative and entrepreneurial culture of technology startups. To Wintermute digital assets is not just another asset class, we believe in the innovative potential of blockchain, the fundamental innovations, we have a long-term view on the digital asset market and are taking a leadership position in building an innovative and compliant market. Read more _ Working at Wintermute We are looking for a C++ Quant Developer who is passionate about technology, interested in both low level details of how computer hardware operates and high-level design of large systems, as well as in data infrastructure. Someone who likes opening the hood to see how things work, has understanding of data structures, experience writing client-server network applications, and writing and optimising code for high performance. We welcome your previous experience from your own personal projects as well as commercial experience. PhD in maths is not uncommon for our Quant Developers, and at least a graduate level of maths skills is required. Interest in algorithmic and quantitative trading is a plus. At Wintermute you will have an opportunity to grow and make direct impact on trading by developing and improving all the parts of the trading platform, data infrastructure and related software, while also getting advice and guidance from very experienced developers and traders, including the founders. You will get a lot of independence and responsibility right away, and you'll learn at an unprecedented speed! No legacy systems, no multiple levels of approvals, no bureaucracy; all developers report directly to CTO who is very hands on. It is up to you to make an impact! You will work alongside exceptionally sharp colleagues, learn how to write fail-safe code and improve performance and scalability of the trading system, a real challenge and a rare opportunity! We have flexible working arrangements, it’s the productivity that matters. At least several days a week in the office with our own gym, unlimited food and drinks are required. What will you work on A great advantage of this position is that it is varied, and it is also up to you to shape it in the direction that matches your talents and company needs. The focus of the role would be to create data infrastructure to bring the analytics to the next level and support the scaling of quantitative trading. Projects may also include upgrading major trading system components, designing a completely new application from scratch, working on implementation of pricing models. We will share more technical details in the interviews. You will have opportunity to improve your knowledge of software optimisations, of building robust large-scale systems and to understand crypto currency trading. \n Hard Skills requirements • At least 2 years’ experience with C++ - we will test, • Understanding networking and implementing client-server connections - we will test, • Experience with looking under the hood to see how C++ standard libraries work - we will test, • Strong analytical skills - we will test Join our dynamic team and benefit from: • Working at one of the most innovative trading firms globally., • Engaging projects offering accelerated responsibilities and ownership compared to traditional finance environments., • A vibrant working culture with frequent team meals, holiday celebrations, gaming events, and company-wide outings, including our annual Wintermute weekend getaway., • A Wintermute-inspired office in central London, featuring an array of amenities such as table tennis and foosball, personalized desk configurations, a cozy team breakout area with games and free food., • Great company culture: informal, non-hierarchical, ambitious, highly professional with a startup vibe, collaborative and entrepreneurial., • A performance-based compensation with a significant earning potential alongside standard perks like pension and private Health insurance. Note: • Although we are unable to accept fully remote candidates, we support significant flexibility in regards to working from home and working hours., • We offer UK work permits and help with relocation Find out more: • _, • _, • _, • _, • _ \n

What we do? Aion Bank is a fully regulated European bank and credit institution, combining Vodeno’s cutting-edge, private blockchain-based platform with its ECB banking license, strong balance sheet, and deep regulatory expertise. Our mission is to provide a comprehensive suite of embedded banking solutions, enabling businesses to seamlessly integrate financial services into their offerings. As part of the UniCredit Group, Aion Bank and Vodeno will accelerate their digital banking offer in strategic markets and will act as a sandbox for innovation for the wider UniCredit Group. Aion Bank and Vodeno's existing Banking-as-a-Service (BaaS) offering across key European markets, including Germany and Poland, will see the bank embed its services - ranging from account access and deposits to lending, payments and loyalty programs - directly into non-banking digital platforms, facilitating seamless customer experiences. At Aion Bank, our biggest strength is our people—a team of highly intelligent, creative, and ambitious professionals who thrive in a fast-paced, innovative environment. We believe in delivering results while fostering a culture of passion and collaboration. We are currently looking for a BaaS Business Development Manager/Director in the UK ready to join our adventure and share our ambition. This is a truly unique opportunity for someone who has the ambition to play a crucial role growing business with clients across Europe. What you will be doing? Strategic planning: develop and implement comprehensive business development strategies to achieve company objectives. Identify and pursue new market opportunities to drive revenue growth. dentify and pursue new market opportunities to drive revenue growth. Actively contribute to business development strategies to achieve company objectives. Client acquisition: lead efforts in acquiring new clients. Cultivate and maintain strong, trust-based relationships with key clients Revenue generation: meet and exceed sales targets through effective lead generation, prospecting, and leading negotiations from start to finish Cross-functional collaboration: work closely with internal teams, including product development, legal & compliance, finance and delivery, to ensure seamless execution of business strategies Market analysis: stay abreast of industry trends, market dynamics and competitor activities. Conduct market research and analysis to identify emerging opportunities Skills you should have 5+ years of proven track record of success in business development within the fintech sector is a must. In particular you need to bring experience from selling BaaS or lending solutions Strong understanding of lending, financial markets & products and industry regulation Local knowledge of the Italian, French, Spanish or DACH market is a clear added value Ability to work autonomously and maintain high productivity in an international context Excellent communication, negotiation and interpersonal skills Strategic mindset with the ability to identify and capitalise on business opportunities Ability to communicate fluently in English. What we offer You will get an opportunity to work in an innovative, digital bank applying state of the art approaches and technologies. In line with our commitment to continuous learning, we offer an individual development budget to support your professional development. We will provide you with additional funds to cover private medical care. We believe in supporting our employees' overall health, including mental well-being. We offer coverage for psychological consultations should you ever need someone to talk to We offer a free premium bank account at UniCredit. We provide our team members with Apple MacBooks to ensure a seamless work and superior user experience. Our process We keep our recruiting process simple: Step 1: Talk with our Lead Recruiter about your experiences and ambitions Step 2: Meet with our Chief Commercial Officer to present and discuss your to date achievements Step 3: Meet with other Senior Leaders for final discussion Our note to you Diverse teams really are the best teams. Research shows that some candidates may hesitate to apply for a job unless they meet every requirement. If you are excited about working with us, we encourage you to apply - even if you're not 100% sure. We are interested in getting to know you and learning about what you bring to the table. Please note that we may close a job posting early if we receive a large number of exceptional applications. Good luck! About us Read more about what we do on our _.

1inch is the DeFi ecosystem building financial freedom for everyone. 1inch products help users and builders trade, hold and track digital assets - with the self-custody, comprehensive security and the intuitive user experience they need to unlock the potential of true crypto ownership. 1inch protocols and APIs provide core infrastructure across the DeFi industry and beyond. So if you’re someone who thinks big, moves fast and wants to make an impact right from day one, then get ready to join our industry-changing team. Location: We prioritise candidates who are based in Dubai then consider those working remotely in one of our European Hub Locations (UK, Spain or Germany). 1inch is seeking a Head of DevOps to spearhead our infrastructure and platform engineering department. This is a pivotal leadership position where you will transform traditional infrastructure support into a world-class platform engineering function. You will lead a dedicated team of engineers to build resilient, multi-cloud environments that empower our developers to deploy and manage services independently. By balancing strategic vision with technical rigour, you will ensure our global decentralised systems remain secure, scalable, and exceptionally reliable. • Strategic Leadership: Define and execute a DevOps strategy that aligns infrastructure growth with 1inch’s business objectives., • Team Development: Lead, mentor, and scale a high-performing engineering team while fostering a culture of automation and accountability., • Infrastructure as Code: Oversee multi-cloud Kubernetes clusters and ensure all environmental changes are managed via automated IaC and GitOps., • Developer Enablement: Standardise deployment processes and build self-service tools for secrets management and infrastructure provisioning., • Service Reliability: Define and implement SLIs, SLOs, and SLAs to ensure the stability and performance of critical services., • Observability & Incident Management: Oversee the full monitoring stack and establish formal incident response and post-mortem processes., • Security & Compliance: Enforce "security by design" and maintain strict adherence to ISO 27001 and SOC 2 regulatory frameworks., • Cost & Efficiency: Lead infrastructure consolidation initiatives and monitor cloud expenditure to identify strategic cost-saving opportunities., • Leadership Experience: 8+ years in DevOps/Infrastructure with 3+ years in a management role., • Proven Track Record: Experience scaling DevOps teams in fast-paced, high-growth tech environments., • Kubernetes Expertise: Deep knowledge of cluster management, networking, and security., • Automation Mastery: Extensive experience with Terraform (IaC) and GitOps practices., • Cloud Architecture: Proficiency in managing multi-cloud environments (AWS, Hetzner, GCP)., • Technical Depth: Strong understanding of service mesh and microservices architecture., • Observability: Solid experience with observability tools for metrics, logging, and tracing., • Security Mindset: Practical experience implementing security best practices within CI/CD., • Communication: Ability to articulate complex technical concepts to non-technical stakeholders., • Strategic Mindset: Balanced approach between long-term strategy and hands-on problem-solving., • Platform Engineering: Building developer-centric tools to increase engineering velocity., • Cloud Governance: Managing multi-provider cloud footprints and resource optimisation., • Incident Response: Leading high-pressure incident resolution and system recovery., • Mentorship: Coaching senior engineers and developing future technical leaders., • Process Design: Crafting standardised, scalable engineering workflows., • Web3 Infrastructure: Specific experience in blockchain or decentralised finance (DeFi)., • Event-Driven Systems: Knowledge of message brokers such as Kafka or NATS., • Chaos Engineering: Experience with resilience testing and fault-injection practices., • Edge Computing: Familiarity with CDN optimisation and edge-based service delivery., • Ecosystem Knowledge: Strong understanding of 1inch protocols and the Web3 landscape., • Join a young, creative team in a fast-paced and supportive environment, • We’re open to new ideas — if you’ve got a vision, pitch it and make it happen, • Enjoy competitive pay that matches your skills and experience, • Be part of a company that’s shaping the future of DeFi, • Take time when you need it — we offer unlimited vacation days, • Get fully compensated for your work gear — we’ll set you up for successWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

All Blockchain Developer positions come with the following benefits:. Blockchain Developer - Web3 / DeFi Innovator - London. Tech stack: Blockchain Developer, Solidity, Node.

Experience hiring in blockchain, crypto, or Web3 companies.

How We Work We're on a mission to create the most innovative and industry-leading cryptocurrencies exchange. Our team is globally distributed, so clear communication is critical. We are in constant contact as we hustle to develop, support, and deliver the best platform possible for our users. If you get excited about being in an industry that is breaking new ground and have a disposition of confidence towards challenging technical feats, we want to talk to you. We’re currently looking for a Customer Support Specialist to join our team. The position is remote and available to anyone self-driven, and with the experience and capacity to contribute to our vision. Key responsibilities Effectively handles inquiries and requests from corporate and professional traders Continuously upgrade skill sets Lead by example to demonstrate full ownership of outstanding customer service Contribute to the positive customer support culture through active participation and support of the Bitfinex vision, initiatives, and objectives Cross-team interactions You must be able to work independently with minimum supervision, flexible as to working arrangements and hours, and confident in making decisions in accordance with Bitfinex’s practice. Experience and a deep interest in working with Finance, Mathematics or Statistics Good understanding of trading and derivatives markets Strong analytical ability Experience in customer relations, ability to handle requests and inquiries is essential Excellent communication skills in English Passionate about cryptocurrency and blockchain world Detail-oriented Security and privacy focus Familiar with Office Suites (especially Excel)

Founded in 2012, Bitfinex is a digital asset trading platform offering state-of-the-art services for digital currency traders and global liquidity providers. We're on a mission to create the most innovative cryptocurrencies exchange. This is a unique opportunity, a rare window of time at the tipping point of the financial evolution. Much like the early days of the internet, blockchain technology faces complex new challenges and having the best team plays a pivotal role in success. Our team is fully remote and globally distributed to capture the best talent from around the world. So far our company has grown fast and stayed lean to secure its place as a leader in the space. If you get excited about being in an industry that is breaking new ground and have confidence you can conquer the most challenging feats we'll encounter, we want to talk to you. Join us, and help lay the foundation for a decentralized future. Currently looking for: Remote Mobile Engineer - React Native Job description As a Mobile-App Developer, you will be a part of the team that works on the development of the Bitfinex mobile applications. This includes: New Features - Bitfinex continuously strives to create innovative new features in order to provide the most professional trading experience for customers. These are developed and deployed using agile methodologies, to ensure the user experience remains the best in the industry. Scalability - The mobile application must remain effortlessly smooth, responsive, and real-time for customers as the platform continues to scale to accommodate new user growth. Data Visualization - The data we present to our users is the result of tailored algorithms, on top of the incredible amount of data our platform produces daily, and we continue to experiment with new ways to display this most effectively. Design - Build beautiful reactive applications and trading tools. To enjoy this role, you should possess the personal attributes and experience outlined above. On top of this, we expect you to be: Comfortable with high-availability concepts. Highly proficient in JavaScript and ES6+. Thoroughly experienced with React, React-Native (mainly around Expo), Redux and the core principles surrounding these. Familiar with modern front-end pipelines and tools. Experienced with WebSockets, RESTful based APIs. Interested in bringing diverse, innovative applications to life. Interested in modernizing and optimizing different mobile or web applications. Knowledge in native languages (Swift/Kotlin) and familiarity with native build tools (Xcode/Android Studio) is advantageous.

We build websites and apps for clients across the US and Europe, specializing in decentralized finance (DeFi, crypto, NFT, blockchain), fintech, and healthcare, with occasional work in e-commerce and other verticals.Beyond client work, we operate our own high-revenue web product with a website, mobi

About OKX At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more. About The Opportunity We’re seeking a Treasury Manager to join our global treasury team in London — someone who’s ready to step into a high-impact role in a dynamic, startup-style environment, with the resources and reach of a global fintech leader. This is an exciting opportunity to work at the intersection of corporate finance, banking, and digital assets while gaining a front-row view into the inner workings of a global crypto business. If you’re a natural leader who thrives in competitive, fast-paced environments — whether in business, sports, or both — and can rally diverse teams to deliver results, we want you on our side. Act as the Treasurer for assigned entities in the UK, US, and select European jurisdictions. Take full ownership of treasury management: liquidity planning, bank account oversight, FX risk management, and short-term investment strategies. Manage day-to-day treasury operations with accuracy, speed, and a problem-solving mindset. Partner with Finance Operations to execute internal financing activities — including capital injections, dividend distributions, and intercompany loans. Play a key role in growing OKX’s new Global Treasury Centre in London. Lead and participate in group-wide and cross functional projects, driving process standardization and alignment with global best practices. Represent the treasury team in market-facing relationships with banks, partners, and service providers. Bachelor’s degree or above from a leading university; MBA preferred. 3–4 years of experience in corporate treasury, corporate finance, or banking. Proven leadership track record, ideally in competitive environments (sports, high-performance teams, or project leadership). In-house banking experience is a plus; digital asset/crypto experience is an advantage but not required. Strong analytical skills, meticulous attention to detail, and the ability to thrive under tight deadlines. A self-starter mindset — proactive, adaptable, and eager to learn new skills. Confidence in managing external relationships and representing the company in the market. Ability to work independently while collaborating effectively across global teams. • Competitive remuneration package (Basic Salary + Yearly Bonuses)., • Hybrid work environment available as part of our flexible working approach, • Monthly Team Building, • Excellent prospects for growth and promotion - we provide you with assistance, opportunities for skill development, mentoring, and training programmes to help you succeed., • Employee engagement, recognition and appreciation program., • Multinational working environment - Advance your career by interacting with individuals from various backgrounds, cultures, and nations. #LI-AZ1 #LI-ONSITE

About Wintermute Wintermute is one of the largest crypto-native algorithmic trading companies in digital assets. We provide liquidity algorithmically across most cryptocurrency exchanges and trading platforms, a broad range of OTC trading solutions as well as support high profile blockchain projects and traditional financial institutions moving into crypto. Wintermute also has a Wintermute Ventures arm that invests in early stage DeFi projects. Wintermute was founded in 2017 by industry leaders and has successfully navigated crypto industry cycles. Culturally, we combine the best of the two worlds: the technology standards of high-frequency trading firms in traditional markets and the innovative and entrepreneurial culture of technology startups. To Wintermute digital assets is not just another asset class, we believe in the innovative potential of blockchain, the fundamental innovations, we have a long-term view on the digital asset market and are taking a leadership position in building an innovative and compliant market. Read more _ Working at Wintermute Wintermute seeks an experienced C++ Developer for its growing options team, one of the biggest electronic trading desks in the crypto options market. In this role, you will directly collaborate with our traders, focusing on the development of scalable, high-performance options trading systems. You will engage with the full options stack, expanding the business across centralized finance, decentralized finance, and OTC. The ideal candidate is able to solve difficult problems and thrives in a fast-paced environment. \n Responsibilities • System Architecture: Design and implement scalable, low-latency options trading systems and strategies., • Performance Optimization: Continuously optimize and monitor the performance of the trading system, ensuring fast execution. ., • Testing: Contribute to the development of unit and integration tests to ensure the reliability and stability of the trading system. Hard Skills requirements • Strong proficiency in C++ programming and software development best practices., • Experience in developing trading platforms, preferably from a HFT environment, • Knowledge of options or crypto would be an advantage., • Familiarity with market data feeds, order execution protocols and connectivity to exchanges., • Solid understanding of multi-threading, concurrency and low latency programming., • Strong problem-solving and analytical skills, • Bachelor’s or Master’s degree in Computer Science, Engineering, Mathematics, or a related field. Join our dynamic team and benefit from: • Working at one of the most innovative trading firms globally., • Engaging projects offering accelerated responsibilities and ownership compared to traditional finance environments., • A vibrant working culture with frequent team meals, holiday celebrations, gaming events, and company-wide outings, including our annual Wintermute weekend getaway., • A Wintermute-inspired office in central London, featuring an array of amenities such as table tennis and foosball, personalized desk configurations, a cozy team breakout area with games and free food., • Great company culture: informal, non-hierarchical, ambitious, highly professional with a startup vibe, collaborative and entrepreneurial., • A performance-based compensation with a significant earning potential alongside standard perks like pension and private Health insurance. Note: • Although we are unable to accept fully remote candidates, we support significant flexibility in regards to working from home and working hours., • We offer UK work permits and help with relocation Find out more: • _, • _, • _, • _, • _ \n