Location
City of London
Job Type
Full-time
Posted
July 08, 2026
Job Description
Title: Senior Backend Engineer (Go/Java) - Global Fintech Contract
Location: Central London (Hybrid, 3 days in-office)
Engagement: Contract with potential to convert to permanent
Rate: Competitive
The Role: You will join a critical API team responsible for high-throughput backend services and real-time payment routing decisions. This is foundational infrastructure where your work directly affects payment acceptance rates for some of the fastest-moving brands globally. You will own complex problems end-to-end from day one.
What You Will Bring:
Demonstrable seniority as a backend engineer owning complex services in production.
Production-level expertise in Go and/or Java.
Experience building or maintaining high-volume, low-latency distributed systems.
Strong API design skills.
Hands-on experience with AWS cloud-native deployment.
A systems-thinking approach to performance, correctness, and failure modes under load.
Background in...
Location: Central London (Hybrid, 3 days in-office)
Engagement: Contract with potential to convert to permanent
Rate: Competitive
The Role: You will join a critical API team responsible for high-throughput backend services and real-time payment routing decisions. This is foundational infrastructure where your work directly affects payment acceptance rates for some of the fastest-moving brands globally. You will own complex problems end-to-end from day one.
What You Will Bring:
Demonstrable seniority as a backend engineer owning complex services in production.
Production-level expertise in Go and/or Java.
Experience building or maintaining high-volume, low-latency distributed systems.
Strong API design skills.
Hands-on experience with AWS cloud-native deployment.
A systems-thinking approach to performance, correctness, and failure modes under load.
Background in...
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