Elixir Software Engineer

Industry: Software Development / Finance / Banking

Location: London / Hybrid

Salary: £40-80,000 Base Salary

X4 Engineering are proud to be working with a disruptive digital finance scale-up that’s changing the way modern banking platforms are built and connected.

With clients ranging from agile startups to global fintech innovators, this company is expanding its backend engineering team to meet fast-growing demand.

As part of this journey, they’re hiring Backend Engineer's to design and scale robust APIs, integrate with a diverse range of banking systems, and shape the future of programmable finance infrastructure.

Key Requirements:

• A technical degree (BSc/MSc) in Computer Science, Software Engineering, or a related discipline.
• Hands-on experience developing production systems using Elixir or Erlang.
• Familiarity with functional programming paradigms and best practices.
• Exposure to frameworks like Phoenix, LiveView, or OTP—or a willingness to get up-to-speed quickly.
• Proven experience designing and maintaining APIs.
• Distributed systems experience.
• A genuine enthusiasm for the Elixir ecosystem—whether through side projects, community events, or writing/sharing ideas.

The role is available on-site / hybrid basis.

If you’re interested in the role please apply via the job advert or get in touch with a.koivio@x4engineering.