Senior Java Developer
Summary
Contract Senior/Principal Java Developer in London (hybrid) building high-scale, business-critical server-side systems at the intersection of financial services and digital assets. Core stack is Java on Linux with strong distributed-systems focus; blockchain experience (EVM, Canton, Solana) is a big plus.
Role:Principal / Senior Java Developer – Elite FinTech
Rate:Up to £750 per day
Location:London
Working Pattern:Hybrid
Contract:Contract
The Role
They are looking for an exceptionalPrincipal / Senior Java Developerto join a high-calibre engineering team, working alongside some of the industry's strongest developers, architects and technical leaders.
This is an opportunity for an engineer who enjoys solving complex technical problems and wants to work onhigh-scale, business-critical technologyat the intersection of financial services and next-generation digital assets.
Requirements
- Strong commercial experience withJava
- Extensive experience developingserver-side Java applications
- Strong software engineering fundamentals
- Experience working on complex, high-scale systems
- Strong understanding of application architecture and design
- Linux experience
- Experience working within financial services, fintech, trading or another highly technical environment
- Strong understanding of distributed systems, APIs and modern software architecture
- Comfortable working in fast-moving environments with ambiguity and incomplete information
Blockchain / Digital Asset Experience
Experience withinblockchain, digital assets or decentralised technologieswould be highly advantageous.
The firm is particularly interested in engineers who have hands-on experience working with ecosystems such as:
- EVM / Ethereum-compatible environments
- Canton
- Solana
- Smart contracts and blockchain-based applications
- Blockchain infrastructure and integrations
- Distributed ledger technology
- On-chain data and transaction processing
- Digital asset platforms
- High-throughput or low-latency distributed systems