Senior Backend Engineer

Orbis Group; Remote; GBP 40,000 - 70,000; Full time

Job summary

A leading fintech company is seeking a Backend Developer skilled in Golang, Python, or Java. This fully remote role involves building backend systems that handle millions of requests. Ideal candidates will excel in scalable systems, have experience with cloud services like AWS or GCP, and be comfortable collaborating across teams using Agile methodologies. The position is for 6-month rolling contracts within a multi-year engagement.

Qualifications

• Solid backend experience in Golang, Python, or Java.
• Experience with scalable systems and microservices.
• Familiarity with AWS or GCP cloud services.

Responsibilities

• Build and maintain backend services and APIs.
• Deploy and operate services on Kubernetes and Docker.
• Collaborate with teams to enhance user experience.

Skills

Golang

Python

Java

Microservices

Event-driven architecture

AWS or GCP

Agile

TDD

CI/CD

Tools

Kubernetes

Docker

Grafana

Prometheus

Job description

Backend Developer – Golang / Python / Java / Tech-First Fintech – Inside IR35

Our client is a leading, tech‑first fintech building backend systems that power millions of users every day. They are looking for a Backend Developer with experience in Golang, Python, or Java who can contribute to scalable, high‑performance systems and help deliver impactful products.

Key Responsibilities:

• Build and maintain backend services and APIs in a Golang‑first environment, with Python or Java experience welcome.
• Work on distributed systems, microservices, and event‑driven pipelines handling millions of requests with low latency.
• Deploy and operate services on Kubernetes and Docker, leveraging AWS infrastructure such as EC2, S3, Lambda, and RDS.
• Implement monitoring and observability using tools like Grafana and Prometheus to track system performance.
• Collaborate with product, frontend, and analytics teams to deliver features that make a tangible impact on user experience.
• Contribute to CI/CD pipelines, automated testing, and maintainable code practices.

Key Skills:

• Golang / Python / Java: solid backend experience, happy to work in a Golang‑first environment.
• Scalable systems: experience with microservices, event‑driven architecture, and high‑throughput APIs.
• Cloud‑native: AWS or GCP experience, containerisation, orchestration, and horizontal scaling.
• Product‑focused mindset: enjoys building systems that directly improve user experience and business outcomes.
• Collaboration: Agile, TDD, CI/CD, and comfortable working closely across teams.

Rate: DoE, Inside IR35

Location: Fully remote, UK‑based

Duration: 6‑month rolling contracts within a multi‑year engagement