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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.

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

Full-time - London - Permanent role - salary + stock options.Kiln is now part of the prestigious French Government program.As a GTM Talent Partner, you will join our People department composed of 6 people, supporting Kiln’s growth across the EMEA, APAC and Americas regions.You will report to our V

Kappa Lab is a digital assets market maker committed to delivering 24/7 deep liquidity and enhancing market efficiency. Our proprietary technology enables us to provide swift and effective solutions to our partners, while our sophisticated algorithms ensure efficient and consistent pricing across all trading venues. We fuel the Web3 ecosystem, driving innovation in pioneering projects with the professionalism and dedication of our exceptional team. Description As a Quant Developer at Kappa Lab, you will be working within a trading team, playing a pivotal role in translating quantitative trading strategies into operational algorithms and production-grade code. You will be working at the forefront of the rapidly evolving world of cryptocurrency trading. This position demands a blend of problem-solving skills, adaptability, and collaborative teamwork. If you possess a strong background in programming, excellent analytical skills, and an interest in the crypto markets, we want to hear from you! We offer a hybrid working arrangement, with the opportunity to be based in either our London or Dubai Office. Responsibilities • Design, develop, and implement high-performance trading algorithms and systems for cryptocurrency markets, ensuring they align with quantitative strategies and market-making objectives., • Optimize code for speed, reliability, and scalability to handle high-frequency trading environments and large-scale data processing., • Analyze market data, liquidity patterns, and order book dynamics to improve algorithm efficiency and pricing models., • Improve reporting and analysis of the existing system's performance. Required skills • Proficiency in Python., • Strong understanding of data structures, algorithms, and software design principles., • Experience with data analysis and manipulation using libraries like NumPy, Pandas, or similar tools., • Good knowledge of probability, statistics, and quantitative modeling techniques., • Familiarity with cryptocurrency markets, blockchain technology, and trading concepts (e.g., order types, liquidity provision)., • Excellent problem-solving skills and the ability to work effectively in a fast-paced, team-oriented environment. Desirable skills • Proficiency in Rust and/or Cython.., • Experience in high-frequency trading (HFT), market making, or algorithmic trading in crypto or traditional finance. Kappa Lab is an equal opportunites employer committed to creating an inclusive and diverse workplace. We welcome applications from all individuals and do not discriminate based on race, colour, nationality, ethnicity, religion or belief, sex, sexual orientation, gender identity or expression, marital status, pregnancy or maternity, disability, or age. We value and respect the unique contributions each person brings, and we strive to ensure that everyone can thrive and grow within our organization.

Software Engineer, Consensus - Anza .Anza is a Solana R&D lab pushing the boundaries of blockchain performance and scalability.Anza was founded by experienced executives and core engineers solving the toughest problems in Web3.Crypto ecosystems rely on robust protocols, and we believe those are bes

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.

pubGENIUS is a React.js and Next.js development agency and ad-tech startup. 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, mobile app, and machine learning systems powering our ad-tech optimization engine. Performance is not a preference here, it is a core requirement. We are looking for a Principal Software Engineer, who will be the technical authority, responsible for all development, architecture decisions, and long-term technical strategy across a website, mobile app, and ML-powered ad-tech optimization systems. This is a full-time independent contractor engagement. You will work hands-on at a senior level where site speed and server performance are core success metrics. You will work directly with stakeholders to set technical direction, remove bottlenecks, and ship production-grade code. Engagement Details: • Type: Full-time independent contractor, • Hours: Full-time commitment expected, • Location: Remote (US, Canada, UK, Ireland or Netherlands), • Clients: US and Europe, • Rate: Competitive, based on experience What You'll Own • End-to-end technical ownership of a high-revenue web platform and mobile app, • Architecture design and long-term technical strategy, • Server-side rendering pipeline using Node.js, Fastify 5, and React 19, • Data layer across MySQL and BigQuery, • GCP infrastructure including Cloud Run, Cloud Build, and Global Load Balancer, • Ad-tech integrations including Google Ad Manager, GTM, GTag, and GPT.js, • Performance optimization at scale, where every millisecond counts, • ML pipeline maintenance and optimization for ad-tech performance Must-Have Qualifications These are non-negotiable. Please only apply if you have strong, production-proven experience in all of the following: • Node.js with TypeScript in production, • React in a server-side rendering context, • MySQL including database design, query optimization, and ORM usage, • BigQuery for querying and managing large-scale datasets, • GCP with hands-on experience in Cloud Run, Cloud Build, Cloud SQL, and Load Balancing. GCP certification is a significant bonus. Nice-to-Have Experience • Ad-tech industry experience including ad serving, yield optimization, and programmatic advertising, • Affiliate marketing experience, particularly with Anura and Everflow, • Cloudflare including CDN configuration, caching strategies, and Workers, • Fastify, especially Fastify 5 patterns, • Flutter for mobile app contribution, • Golang or Rust for high-performance service work, • Machine learning applied to ad-tech optimization (not LLMs or agents), • Experience in DeFi, crypto, NFT, blockchain, fintech, or healthcare verticals, • Fully remote work, • Flexible hours, • Paid vacation and sick days Application Process • We do not review applications via LinkedIn DMs or email. Please apply through the application link., • We do not work with staffing agencies or third-party recruiters. Direct applicants only. pubGENIUS is an Equal Opportunity Employer; employment with pubGENIUS is governed on the basis of merit, competence, and qualifications and will not be influenced in any manner by race, age, colour, gender, religion, national origin/ethnicity, veteran status, sexual orientation, marital status, gender identity, mental or physical disability, or any other legally protected status.

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 _.

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 _.

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!

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

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!

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

Hi, we’re MoonPay. We’re here to onboard the world to the decentralized economy. Why?Because crypto and blockchain aren’t just technologies—they’re tools for global financial empowerment. They give people control over their money, their digital assets, and their future, unlocking opportunities that traditional systems have kept out of reach. What we doAt MoonPay, we’re building the infrastructure that powers this new financial system. We make it easy for anyone, anywhere, to buy, sell, and trade crypto using everyday payment methods like cards, Apple Pay, PayPal, Revolut and Venmo. We provide simple tools to send, receive, and manage stablecoins, so anyone can participate in the crypto economy confidently. Trusted by nearly 30 million customers and over 500 companies, our secure, enterprise-grade platform is driving mainstream crypto adoption worldwide. We collaborate with innovative brands and projects to build secure, scalable solutions for a blockchain-powered future. And we’re committed to doing it right—fully licensed in the U.S. and regulated across the UK, EU, Canada, and Australia—because trust and compliance are non-negotiable. But we’re just getting started. We’ve launched a consumer app that makes crypto accessible, intuitive, and usable for everyone, and it’s growing fast. We’re iterating every day to make it the best it can be. If you believe financial freedom should be for everyone—if you believe in building a fairer, more open financial system—we want you with us. To build systems that benefit all, we need contributions from all, regardless of background. Come build the future of payments and the decentralized economy with MoonPay. Let’s make financial freedom and autonomy the new normal. ✍️ About the Opportunity The Financial Intelligence Unit (FIU) is responsible for safeguarding the MoonPay platform against financial crime and money laundering activities. Leveraging advanced analytics and blockchain tracing tools, it collects and analyses huge volumes of data to identify potentially suspicious activities. The team collaborates with regulatory bodies, preparing & submitting Suspicious Activity Reports (SARs) and sharing intelligence to combat financial crime. The FIU Analyst will directly support the Financial Intelligence Unit (FIU) to ensure the business operates in accordance with all legal and regulatory requirements and all Group standards relating to anti-money laundering and counter terrorism financing. This role will be responsible to conduct transaction monitoring reviews to ensure efficient monitoring and detection of potential money laundering, terrorist financing, or illicit activities and escalate such activity for additional review. In addition, this role will work independently and closely with the FIU Director and Sr FIU Director, Regional Lead, Team Lead, and/or applicable Head of Compliance in international operational jurisdictions to ensure that all AML related matters are addressed in a timely fashion and in accordance with MoonPay's Compliance policies and procedures. • Utilize the transaction monitoring and/or blockchain analytics solutions to independently analyze and assess activity or patterns of activity that do not commensurate with the customer’s profile or expected behaviour., • Review blockchain wallet screening as well as KYT alerts and/or investigations to include on-chain activity to determine if the customer activity presents risk indicators., • Independently conduct open source searches as applicable to the relevant customer(s), counterparties, and/or transactional activity., • Analyze transactional activity, along with information collected through internal systems, blockchain screening tools, and open sources and use sound judgment, decision-making skills in making reasonable and well supported alert dispositions with adequate conclusions., • Prepare clear and concise alert and/or case dispositions of potential suspicious activity detected for a Suspicious Matter Report (SMR) consideration., • May be required to draft Suspicious Matter Reports (SMRs)Discuss potentially unusual findings with the Team Lead, Sr FIU Manager, Head of FIU, and/or appropriate Head of Compliance to determine the proper course of action., • Ensure that transaction monitoring alerts, case investigations and SMRs are completed/submitted within the established deadlines and SLAs., • Previous working experience in Financial Crime/Compliance analytical / investigations role(s), for at least 2 years, preferably in TM/FIUACAMS / ACFCS or ICA accreditation, • Experience with blockchain analytics solutions (Chainalysis, TRM, Elliptic, CipherTrace, Scorechain), • Strong problem-solving skills and attention to detail, • Ability to handle shifting priorities and thrive in a dynamic environment., • Comfortable to work independently and upskill on new tools and technology., • Team player with good communication skills, with the ability to explain technical concepts clearly to different audiencesFluent in English, • Prior experience working in a fast-paced fintech/cryptocurrency company, • Blockchain analytics solution certifications (Chainalysis, TRM, Elliptic, CipherTrace, Scorechain), • Proactive, “can-do”, collaborative approachSolution orientated, • Ability to demonstrate a practical approach to alert processing / analysis, • Ability to feed rule / investigation output back into AML Programme, • Interested in cryptocurrency, blockchain and financial crime detection.What you will be working with/on… You will be at the forefront of safeguarding MoonPay against financial crime. In this role, you'll be working in the FIU as an operational team member to review and resolve financial crimes alerts on a day-to-day basis and conduct Financial Crime Investigations. In addition, you will be responsible for escalating suspicious activity, and, if applicable, preparing suspicious activity reports in the required jurisdiction. You will be engaged within MoonPay’s Financial Intelligence Unit as well as with the MoonPay’s Risk and Compliance Teams and appropriate Heads of Compliance. We’re looking for people who live our core values, those who strive for excellence and want to leave a lasting legacy on the global financial system. Our values: B - Be HungryL - Level UpO - Own ItC - Crypto CuriousK - Kaizen What’s in it for you 💰Competitive salary package 🤝 Equity package: We believe financial freedom starts with our employees, so all employees have ownership at MoonPay 📈 Pay for performance equity bonus: Those who drive outsized outcomes receive outsized rewards 🚀 Moonshot award. We honor exceptional impact - 10 employees twice a year, each earning a $250,000 equity grant. 🏝 Unlimited holidays: We give you the autonomy to choose when to work (and when to switch off) 🌍 Hybrid working schedule: Work fully remotely or your nearest Moonbase, the choice is yours 🩺 Private Healthcare benefits: To protect you and your loved ones 🍼 Enhanced parental leave: So you can spend more time with your loved ones without a second thought 📚 Annual training budget: We support your training journey every step of the way 🪑 Home office setup allowance: Create the home office of your dreams 👛 Remote working allowance: Those working fully remotely get a little extra for utilities 💰 Monthly budget to spend on our products and zero fee crypto transactions: Cultivate your inner DEGEN 💰 Employee referral programme: Great people know great people, refer them to receive 10K in USDC ✈️ Regular remote company offsites: Meet your colleagues regularly for high impact in person sessions and hackathons 🚀 Working in a disruptive and fast-growing company where excellence is rewarded What’s it like to work at MoonPay? At MoonPay, you’ll work alongside driven, resourceful people who are passionate about excellence in everything they do. Kaizen is more than just a saying here, it’s a mindset. We encourage you to think big, take risks, and push the boundaries of what’s possible, knowing you have the support of a team that wants to see you grow. We’re listed in the _ and consistently strive to provide an environment where everyone feels they can their best work. Whether you’re remote or collaborating with teammates around the world, you’ll find opportunities here to do the best work of your career while shaping the future of the decentralized economy. Commitment To DiversityResearch has shown that women are less likely than men to apply for this role if they do not have experience in 100% of these areas. Please know that this list is indicative, and that we would still love to hear from you even if you feel that you are only a 75% match. Skills can be learnt, diversity cannot. Please let us know if you require any accommodations for the interview process, and we’ll do our best to provide assistance. At MoonPay we believe that every voice matters. We strive to create a mindful and respectful environment where everyone can bring their authentic self to work, and experience a culture that is free of harassment, racism, and discrimination. That’s why we are committed to diversity and inclusion in the workplace and are a proud equal opportunity employer. We prohibit discrimination and harassment of any kind based on race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, protected veteran status or any other characteristic protected by law. This policy applies to all employment practices within our organization, including, but not limited to, hiring, recruiting, promotion, termination, layoff, and leave of _ is also committed to providing reasonable accommodations in our job application procedures for qualified individuals with disabilities. Please inform our Talent Team if you need any assistance completing any forms or to otherwise participate in the application process. Please be aware that MoonPay does not request an AI-led interview without seeing a recruiter or team member from MoonPay on video call. We won't ask for your personal identification documents or any money from you during your interview process with us. Be fraud smart! If you receive an email - claiming to be from MoonPay - but from an email address ending in anything other than @moonpay.com, please be aware that this is not us.We 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.

At the intersection of technology and human potential, we are pushing the boundaries of what is possible, crafting a future where innovation and human capabilities merge in powerful, unprecedented ways. By harnessing the power of blockchain technology, Tether enables you to store, send, and receive

Remote-first working environment. Location: London, UK / Fully Remote. Applicants must be based in the UK and have the right to work in the UK, even though this is a remote-first position.

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

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.

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.

Office (Birmingham or Manchester).Reporting to the Managing Director, you will be setting up and leading a team whose objective is to stop the theft of books through digital means, by securing all components of the supply chain.Building out a blockchain DRM system for books.Creation of e-reader soft