Jobs in London

Tech Lead - Trading Sub Ledger- Leading Global Market Maker

This role involves leading a small team to design and implement a real-time sub ledger system for firm-wide P&L and trade journals. You will collaborate with trading, finance, and engineering teams to ensure system performance, scalability, and production readiness.

eFinancialCareers London, United Kingdom

On-site Permanent

Systems Engineer - Rust- Thriving Crypto Tech Firm

This role involves building and optimizing ultra-high-performance blockchain infrastructure for Ethereum's largest block builder. You'll work on low-latency systems, transaction sorting algorithms, and competitive dynamics in a fast-moving, adversarial environment. The role emphasizes end-to-end ownership, real-time deployment, and direct impact on profitability through performance gains at microsecond scale.

eFinancialCareers London, United Kingdom

On-site Permanent

Sales Development Representative

This role involves driving outbound prospecting to generate qualified leads for Modulr’s sales team, focusing on the fintech, finance, and SaaS sectors. The Sales Development Representative will engage senior decision-makers, tailor outreach strategies, and collaborate with cross-functional teams to build and refine the sales pipeline. Success is measured by consistently meeting pipeline targets while contributing insights to shape go-to-market strategy.

Modulr London, United Kingdom

On-site Permanent

Solutions Consultant - San Francisco

This role involves leading product demonstrations and proof-of-concept engagements for Elliptic’s blockchain analytics platform, tailored to compliance and risk teams at crypto and financial institutions. The consultant will translate technical capabilities into commercial value, support enterprise integrations, and collaborate with sales, product, and research teams to refine customer-facing messaging and solutions. Success requires deep understanding of AML, sanctions compliance, and customer workflow mapping in the crypto regulatory landscape.

Elliptic United Kingdom

Hybrid Permanent

Campaigns & Memberships Marketing Manager

This role focuses on planning and executing integrated B2B marketing campaigns across the APAC region, with a strong emphasis on data-driven strategies and nurturing audience engagement through newsletters, social media, and industry partnerships. The candidate will shape campaign performance across the buyer journey, adapt global initiatives for regional relevance, and leverage AI and marketing automation tools to drive pipeline growth. Key responsibilities include managing Elliptic's presence in industry associations, optimising content distribution, and collaborating with creative, events, and content teams to ensure cohesive execution.

Elliptic London, United Kingdom, United Kingdom

Hybrid Permanent

Senior Back-End Engineer, Trading Platform

This role involves building and maintaining low-latency, scalable trading services in Rust, including order management systems, exchange gateways, and risk management systems. You will work closely with other tech teams to ensure high performance and security, and be part of a fast-paced, high-performance culture focused on continuous improvement and innovation in the cryptocurrency exchange ecosystem.

Blockchain.com London, United Kingdom

Hybrid Permanent

Back-End Engineer, Trading

Design and develop backend services in Kotlin and Python for a high-performance cryptocurrency trading platform, focusing on real-time order management, market data processing, and low-latency APIs. Collaborate with product, frontend, and trading teams in an international environment with strong emphasis on system reliability, scalability, and engineering excellence.

Blockchain.com London, United Kingdom

On-site Permanent

Senior Data Scientist

This role involves developing advanced behavioral heuristics, graph algorithms, and machine learning models to analyze blockchain data, particularly on EVM networks. The Senior Data Scientist will lead production projects from concept to deployment, working with large-scale on-chain datasets to uncover insights that power Chainalysis' products. Collaboration with technical and non-technical stakeholders, mentoring, and contributing to production data pipelines are key aspects of the role.

Chainalysis London, United Kingdom

On-site Permanent

Senior Software Engineer, Custody Services

This role involves building and maintaining secure, scalable infrastructure for cryptocurrency custody and transaction processing. The engineer will work on blockchain node operations, wallet and key management, third-party integrations, and containerized deployments using Kubernetes and AWS. Emphasis is placed on security, automation, monitoring, and high availability of systems handling billions in digital assets.

Robinhood London, United Kingdom

Senior Growth Engagement Manager, International

This role focuses on driving international customer engagement through data-driven lifecycle marketing strategies. You'll design and execute automated customer journeys across onboarding, product adoption, and retention, using A/B testing and personalization to optimize engagement. Working closely with cross-functional teams, you'll leverage marketing technology and analytics to scale impactful campaigns across global markets.

Robinhood London, United Kingdom

Senior Security Engineer

This role involves designing and implementing security controls across identity, cloud, and infrastructure platforms to protect Copper's digital asset systems. The engineer will lead IAM solutions, automate security workflows, conduct vulnerability management, and ensure compliance with standards like SOC2 and ISO27001. The position is technical and proactive, focusing on hardening systems, integrating security tooling, and advising teams on secure architecture within a fast-paced fintech environment.

Copper London, United Kingdom

Hybrid Permanent

DevOps Engineer

This role involves building and maintaining scalable, self-service infrastructure and CI/CD pipelines for a high-security digital asset platform. You'll work closely with engineering and SRE teams to ensure resilience, reliability, and performance of blockchain nodes and supporting systems. Key responsibilities include infrastructure as code, automated provisioning, and operating geographically distributed systems with strict availability requirements.

Copper London, United Kingdom