Backend Engineer

Job description

We’re partnering with a fast‑growing global fintech building the next generation of on‑chain payments, banking, and investment infrastructure. This is a rare opportunity to work on mission‑critical backend systems used by millions of customers worldwide — where scale, performance, and security genuinely matter.

If you thrive in high‑availability environments, love clean backend architecture, and enjoy solving real‑world scalability problems, this role will stretch and reward you.

As a Backend Engineer, you’ll play a key role in designing and building robust APIs and microservices that power both consumer and business products across web and mobile platforms.

You’ll work with modern backend technologies, collaborating closely with frontend, mobile, product, and design teams to deliver secure, scalable systems in production.

Core engineering principles here are maintainability, performance, and security — not buzzwords, but non‑negotiables.

Responsibilities:

• Designing, building, and maintaining backend services and APIs
• Delivering new platform features and continuous enhancements
• Building high‑performance, scalable microservices
• Integrating with web and mobile applications
• Working across the full SDLC: planning → design → implementation → deployment → support
• Writing high‑quality, production‑ready code
• Helping the team stay current with evolving backend and infrastructure tooling

Requirements:

This role prioritises strong backend fundamentals over surface‑level experience.

Essential:

• Degree in Computer Science (or equivalent practical experience)
• Significant hands‑on backend engineering experience
• Strong experience with Node.js (JavaScript) and/or Golang
• Solid understanding of relational databases (PostgreSQL preferred)
• Familiarity with non‑relational stores (e.g. Redis)
• Strong grasp of web semantics
• Experience using version control systems
• Understanding of CI/CD pipelines and basic automation
• Strong communication skills and ability to work cross‑functionally
• Fluent English (written and spoken)

If you’re a backend engineer who cares deeply about code quality, system design, and impact, and you want to work on systems that handle real value at scale — we’d love to connect.

Extra information

Status

Open

Education Level

Secondary School

Location

London Area

Type of Contract

Full-time jobs

Published at

22-04-2026

Profession type

Accountancy

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English