Latest Smart Contract Developer Jobs

Senior Product Security Engineer

This role involves leading the secure development lifecycle for Blockchain.com’s core products, with a focus on integrating security into design, automating safeguards, and managing security debt. The engineer will conduct threat modeling, lead code audits in Java/Kotlin and TypeScript, embed AI-driven security tools, and collaborate closely with product teams to harden critical financial systems. They will also define security standards, drive incident response support, and translate technical risks into business decisions through metrics and governance.

Blockchain.com London, United Kingdom

Hybrid Permanent

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

Senior Software Engineer - Cititec Talent Ltd

This role involves designing and building core components of a cloud-native EMS/OMS platform for global commodities trading. Responsibilities include implementing FIX protocol integrations, developing low-latency distributed services, and collaborating with traders and risk engineers to ensure seamless integration with risk systems.

eFinancialCareers London, United Kingdom £950 pd

Hybrid Contract Part-time

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

Security Engineer, Institutional Trading

This role involves partnering with trading, middle office, and quant teams to secure off-chain trading processes and infrastructure. Responsibilities include conducting risk assessments, implementing monitoring, managing key security, and supporting incident response for high-impact financial operations.

Blockchain.com London, United Kingdom

On-site Permanent

Account Executive

As an Enterprise Sales Executive, you will own the full sales cycle for strategic accounts in the Crypto and Financial Services sectors. You will develop and execute multi-threaded sales strategies, handle large deals, and collaborate with internal teams and partners to drive account expansion and maximize customer value.

Elliptic London, United Kingdom, United Kingdom

Hybrid Permanent

Principal Site Reliability Engineer

As a Principal Site Reliability Engineer, you will focus on delivering high reliability, performance, and uptime for Copper's digital asset infrastructure. You'll shape SRE practices, drive automation, and collaborate with the DevOps team to ensure operational excellence and production readiness across the engineering organization.

Copper.co London, United Kingdom

On-site Permanent

Senior Business Analyst

The Senior Business Analyst at Copper.co will act as a bridge between business and IT teams, focusing on analysing complex processes, identifying improvement opportunities, and translating requirements into actionable insights. Key responsibilities include conducting gap analyses, gathering and documenting requirements, and ensuring compliance with regulatory standards and internal governance.

Copper.co London, United Kingdom

On-site Permanent

Senior Product Manager

This role involves leading product development for a Web3-focused company building on the Solana blockchain, with ownership over both core DeFi protocols and a consumer-facing product. The Senior Product Manager will drive product design, maintain a prioritized backlog, conduct user research, and deliver clear technical briefs to engineers in a fully remote, early-stage environment. Success requires deep understanding of crypto, DeFi, and stablecoins, along with strong collaboration skills in a technical, fast-moving setting.

Plexus London, United Kingdom US$105 – US$150 pa

Remote Permanent

Senior Software Engineer - C++ - Trading Technologies

As a Senior Software Engineer on the Trading Technologies sub-team, you will develop and maintain the core messaging transport layer of Kraken's trading infrastructure, focusing on ultra-low-latency and high-availability solutions. You will work on optimizing system performance, building Aeron Archive integrations, and collaborating with cross-functional teams to ensure secure and efficient trading systems.

Kraken London, United Kingdom, United Kingdom

Remote Permanent

Financial Crime QC Lead

Financial Crime QC LeadOverviewYou are a professional with deep expertise in establishing and maintaining robust quality control frameworks within a financial crime environment. You are analytical and focused on delivering high-quality outcomes.Duties and responsibilitiesQC Governance and OversightTake responsibility for the...

BCB Group United Kingdom