Blockchain Jobs

• London
• On-site
• Director · manages people
• Permanent

Executive role owning the global cybersecurity strategy for a large crypto platform, reporting to the CTO and advising the Board. Leads Security Engineering, SOC and GRC teams, covering cloud and application security, incident response, custody systems and AI governance, with a focus on IPO and regulatory readiness.

GCP · AWS · HSM +6

• United Kingdom
• Remote
• Senior
• Permanent

Hands-on security architecture role embedded within engineering teams, designing and reviewing security for infrastructure, cryptography, web3, Rust and AI products. Conducts security assessments and audits, advises blockchain teams on secure operations, and works remotely across a small, highly technical internal consulting group.

Rust

• United Kingdom
• Remote
• Senior
• Permanent

Architect and evolve scalable systems for ingesting and parsing complex blockchain data across 30+ chains, providing protocol expertise in EVM and UTXO. The role involves AI-native workflows with LLMs and agents, full SDLC ownership including production monitoring, and mentoring junior engineers alongside product managers.

Spark · Databricks · PostgreSQL +7

• London
• On-site
• Senior

Builds low-latency, high-throughput trading services in Rust, including an Order Management System, exchange gateways and risk management systems for a high-frequency trading environment. Works in a dedicated institutional engineering team on order execution, routing, market data ingestion and performance tuning, with security and testing embedded throughout.

Rust · C++ · Python +1

• United Kingdom
• Remote
• Senior
• Permanent

Owns and improves a Java Spring Boot data ingest service generating enriched transfers and aggregations, tuning PostgreSQL batching, indexing and replication. Also builds AWS API services handling thousands of requests per second, runs PoCs and benchmarks for next-generation architecture, and integrates LLM tooling into incident triage and self-healing pipelines.

PostgreSQL · Java Spring · Kafka +7

• United Kingdom

Pre-sales role supporting EMEA sales directors with tailored product demos, workshops and Proof of Concepts for Fireblocks' digital asset infrastructure. You'll design technical solutions covering custody, tokenization, DeFi and blockchain transaction flows, lead RFP responses, and guide clients through onboarding onto MPC-based wallet infrastructure and APIs, working closely with Product, R&D and Security teams.

Fireblocks · MPC-based Wallet Infrastructure · APIs

• London
• Hybrid · 3 days in office
• Senior

Build and run the AWS infrastructure behind crypto custody, key management and blockchain node operations, writing Python services for wallet operations and owning third-party custodian integrations. The role sits at the boundary of infrastructure and security, covering Kubernetes and Docker deployments, Terraform/Ansible automation, and Prometheus/Grafana monitoring, with on-call rotation. Based in London with at least three days a week in office.

AWS · Ansible · Terraform +7

• London
• Remote
• Senior

Lead technical solutioning for Payments and Enterprise customers across EMEA, owning discovery, architecture design, proof-of-concepts and post-sale implementation alongside Business Development, Product and Engineering. The role focuses on APIs, transaction flows, custody and settlement models for stablecoin and blockchain infrastructure, with up to 25% travel and structured market feedback into product roadmap.

USDC · Circle Payments Network · Arc

• International
• Remote
• Permanent

Own the frontend product experience for a live decentralised exchange, shaping how it looks, feels and performs for traders. Beyond frontend engineering, you influence product decisions, architecture and the direction of future products, working with engineering, design and commercial teams in an early-stage venture.

React · Next.js · EVM +1

• London
• Hybrid
• Lead · manages people
• Permanent

Player-coach lead role owning a small data science team within the Intelligence function, setting direction, hiring, and running model governance while still writing code and reviewing methods. Work spans clustering, attribution, heuristics and labelling on large behavioural and on-chain datasets using Python, SQL, Spark or Databricks and AWS.

AWS · Spark · Databricks +1

• London
• Hybrid
• Senior
• Permanent

Leads counter-terrorism financing investigations into cryptoasset use by terrorist actors and facilitation networks, validating exposure and attribution confidence. Builds typologies and detection logic, works across UN, US, UK and EU designation regimes, and briefs clients, regulators and public-sector partners. Requires OSINT, blockchain tracing and AI-assisted analysis.

Python · SQL

• Birmingham
• Hybrid
• £95,000 – £140,000 pa
• Senior

Builds low-latency, high-throughput Rust services for a fintech and digital assets platform, owning critical components such as trading, market data, payments or core infrastructure. Involves end-to-end performance tuning across networking, concurrency and memory, plus distributed systems work, mentoring engineers and leading technical design discussions.

Rust · C++ · AWS +5

• London
• Hybrid
• Mid-level

Supports the development, coordination and rollout of digital asset and tokenization initiatives across the region, combining product support, client delivery and programme coordination. Works with product, technology, operations, marketing, sales, legal, risk and compliance teams on regional requirements, implementation, client onboarding and launches. Suits someone with a Capital Markets background moving beyond pure analysis into broader delivery ownership.

Excel · PowerPoint · JIRA +2