Latest Blockchain Protocol Engineer Jobs

Principal Security Architect

The Principal Security Architect is a senior technical role responsible for setting the security architecture direction at Copper, a leading provider of institutional digital asset infrastructure. The role involves reviewing and approving major changes, providing architectural assurance, and leading the security of signing infrastructure and multi-chain integrations. The position requires a deep understanding of cryptographic principles and blockchain security.

Copper London, United Kingdom

On-site Permanent

Kinexys - JPM Coin - Product Executive Director - London

As a Product Director in Kinexys, you will lead the development and growth of a blockchain-based payment product, driving innovation and adoption. You will oversee the product lifecycle, from planning to execution, and collaborate with cross-functional teams to deliver groundbreaking solutions that address customer needs and scale the product.

JPMorgan Chase & Co. Central London, W3 0BJ, United Kingdom

On-site Permanent

Site Reliability Engineer - Core

As a Site Reliability Engineer on the Core team, you will focus on improving the reliability, security, and scalability of Blockchain.com's distributed financial platform. You will develop and maintain tools to automate infrastructure tasks, enhance observability, and guide developer teams in delivering secure and efficient features.

Blockchain.com London, United Kingdom

Hybrid Permanent

Senior QA Automation Engineer (Financial Apps)

As a Senior QA Automation Engineer, you will own the end-to-end quality of financial applications, leveraging AI to accelerate testing and ensure robust financial flows. You will work closely with the product team to improve systems and build scalable automation for both frontend and backend interfaces.

Fireblocks United Kingdom

Remote Permanent

Senior DevOps Engineer

As a Senior DevOps Engineer, you will focus on enabling fast, reliable, and secure delivery of Copper's systems, including blockchain environments. Your day-to-day responsibilities will involve building and operating scalable infrastructure, CI/CD pipelines, and blockchain platforms, while collaborating closely with engineering and SRE teams to ensure high system reliability and performance.

Copper London, United Kingdom

On-site Permanent

Sr Product Manager - Onchain

As a Senior Product Manager on the Onchain team at Kraken, you will lead the development of innovative financial products that leverage blockchain technology. Your responsibilities include defining the product strategy for Kraken Wallet, driving cross-functional execution, and ensuring seamless user experiences in the DeFi and onchain ecosystem.

Kraken London, United Kingdom, United Kingdom

Remote Permanent

Senior Data Scientist

This role involves owning and executing data science projects, developing advanced algorithms and heuristics for blockchain analysis, and collaborating with a team to bring research from prototype to production. The work is deeply technical, focusing on graph computation, statistical modeling, and machine learning to uncover insights from large-scale on-chain datasets.

Chainalysis London, United Kingdom

On-site Permanent

Digital Asset Custody - Operations Client Experience Lead - Citi

This role involves leading and overseeing the end-to-end post-transaction processes for digital assets, including strategic leadership, operational excellence, and continuous process improvement. The candidate will work closely with technology, product, and control teams to deliver superior client outcomes and drive innovation in blockchain-based settlements.

eFinancialCareers London, United Kingdom

On-site Permanent

Treasury Operations Manager

Treasury Operations ManagerThe Role The Treasury Operations Manager is responsible for overseeing the day-to-day running of treasury operations while driving the continued evolution of liquidity management, payment routing, and treasury infrastructure. This role combines hands-on operational ownership with team leadership,...

BCB Group United Kingdom

Corporate Treasurer

The Corporate Treasurer will join Blockchain.com's Finance team to build and scale a global treasury function. Responsibilities include managing liquidity, cash flow forecasting, treasury policy design, and optimizing capital structure. The role involves close collaboration with external stakeholders and internal teams to ensure efficient financial operations and strategic decision-making.

Blockchain.com London, United Kingdom

Hybrid Permanent

Data Engineer

As a Data Engineer at Elliptic, you will design and optimize distributed data pipelines using Scala, Spark, and cloud technologies. You will collaborate with engineers, data scientists, and product teams to build reliable, scalable systems that process large-scale blockchain and off-chain datasets, ensuring accuracy and efficiency in data-driven decision-making.

Elliptic London, United Kingdom, United Kingdom

Hybrid Permanent

Solutions Consultant - APAC (Hong Kong)

This role involves working closely with compliance teams at crypto exchanges, financial institutions, and fintechs in the APAC region to understand their needs and demonstrate how Elliptic’s AML and risk mitigation solutions can address their challenges. Key responsibilities include leading product demos, managing PoCs, and translating technical concepts into commercial benefits.

Elliptic United Kingdom

Hybrid Permanent

Founding Developer Relations Lead

This role involves leading the creation of a new Developer & Agent Interface capability at Kraken, focusing on developer activation, API usage, SDK integrations, and ecosystem engagement. You will partner with engineering and product teams to ensure developer-friendly launches and establish Payward as a leading platform for financial services.

Kraken London, United Kingdom, United Kingdom

Remote Permanent

General Manager, Licensed Payments Services

The General Manager will lead the buildout and scaling of Fireblocks Payment Services, a licensed payments entity focused on stablecoin and crypto-payments. Key responsibilities include developing the go-to-market strategy, driving the product roadmap, and coordinating cross-functional teams to deliver a secure and compliant payments platform for enterprise clients.

Fireblocks London, United Kingdom

On-site Permanent

Dev Ops Engineer

DevOps Engineer | BTCCLocation: LondonContract Type: Full-Time, PermanentWorking Model: On-siteLanguages: English & Mandarin (mandatory)Industry: Cryptocurrency / Blockchain / FintechAbout BTCCFounded in 2011, BTCC is one of the world’s longest-running cryptocurrency exchanges, committed to delivering secure, transparent, and high-performance digital asset...

BTC Capital Markets Ltd Chaucer, United Kingdom