132 Best web3 Jobs in London (October 2025)

Location: London At Boom, we don’t hire mercenaries. We hire missionaries. Engineers who want to architect systems that power a global platform. We’re building something that redefines how people interact with money, outside of the banking system. That takes backend engineers who can scale, secure, and future-proof critical infrastructure. Responsibilities : • Design, build, and scale backend services with low latency, high throughput, and strong reliability., • Implement secure APIs, integrations, and data flows that connect mobile apps with blockchain components., • Collaborate closely with product owner, frontend, mobile, and blockchain engineers for seamless product delivery., • Champion performance optimization, monitoring, documentation 1and observability., • Lead code reviews, mentor teammates, and set engineering best practices., • Stay ahead of emerging backend architectures and distributed systems approaches. Requirements : • 5+ years of backend development experience (Node.js, Go, Java, or similar)., • Strong understanding of scalable system design, microservices, and cloud infra (AWS/GCP/Azure)., • Expertise in databases (SQL + NoSQL), caching, and data pipelines., • Familiarity with security, authentication, and encryption best practices., • Problem-solving mindset and ability to thrive in high-intensity, fast-moving environments. Nice to Have : • Experience with event-driven architectures and real-time data., • Exposure to blockchain integrations or Web3 APIs., • Background in fintech, marketplaces, or high-traffic consumer platforms. Extra Perks at Boom • Crescending Salary (First 90 Days): you prove impact, we ramp your pay up, faster than most companies promote., • Stock Options (Post 90 Days): real ownership. Not play money, but a meaningful equity stake in Boom’s future., • Missionary Bonus: milestone-based cash or digital asset rewards for those who go above-and-beyond expectations in the first year., • Founder Access: direct collaboration with founders/leadership, not layers of management., • Rapid Growth Path: prove yourself in 90 days and you won’t just work on tickets, you’ll lead initiatives., • Onsite Culture: daily face-to-face collaboration in London., • Wellbeing Support: private healthcare & wellness allowance (because missionaries need fuel, too)., • Time for Mastery: dedicated “Build Fridays” to experiment, refactor, or research new tech (mobile + blockchain)., • Immersive Offsites: team offsites (local & abroad) to reset, align, and celebrate wins together. Compensation & Rewards • Base Salary (London, senior-level):, • First 90 days: £5,500 → £7,500 → £9,500/month crescending structure., • Post-90 days: £95,000 – £130,000+ full base salary depending on performance and seniority., • Equity / Stock Options: meaningful ownership in Boom., • Missionary Bonus: milestone-based cash or digital asset rewards., • Healthcare & Wellness: private cover + allowance.

Immediate start!

Easy apply

Web3 jobs in LondonCreate job alerts

Popular jobs searches in London

Popular web3 jobs locations