Back End Engineer

Contract Backend Engineer

Location: London (Hybrid)

Contract Type: Outside IR35

Duration: 3 months

Clearance: Must hold or be eligible for SC Clearance

About the Project

Our client is a confidential technology organisation operating within the defence and national security domain. They develop secure, data-driven software systems that deliver critical insight and decision advantage.

You will join a small, high-calibre engineering team at the start of a brand-new project. The team is building a next-generation platform that handles large-scale, multi-tenant, geospatial and graph-based data in a secure cloud environment.

This is an opportunity to work on greenfield architecture using modern languages and infrastructure, and to help define best practices across a critical mission space.

The Role

As a Contract Backend Engineer, you will work closely with the CTO and senior engineers to design and deliver secure, scalable backend APIs that power complex analytical and operational systems.

You will be instrumental in defining architecture patterns, integrating geospatial data sources, and working with modern cloud-native technologies.

Tech Stack

• Languages: Python (preferred), GoLang, or Rust
• Databases: Relational and Graph
• Infrastructure: GCP, Serverless, Containers, Kubernetes (not essential)
• IaC: Terraform (nice to have)
• Focus Areas: Secure multi-tenant systems, data orchestration, geospatial and graph data handling

Key Responsibilities

• Design and implement backend APIs in a secure, cloud-native environment
• Handle and optimise large-scale, complex datasets including geospatial data
• Build and maintain graph-based data structures and APIs
• Apply robust access control and security principles
• Collaborate with data and front-end teams to deliver cohesive solutions
• Contribute to architectural decisions and technical strategy

Requirements

• 3-5+ years of backend or full-stack engineering experience
• Strong experience with Python or proficiency in Go or Rust
• Experience with cloud platforms (GCP preferred) and microservice architectures
• Familiarity with graph databases and geospatial data
• Knowledge of Kubernetes, Serverless, or Terraform beneficial
• Must be eligible for SC clearance and comfortable working in a defence environment
• Must be UK-based and eligible to work in the UK

Interested?

Submit your CV to explore this opportunity to work on cutting-edge systems that make a real impact in the defence and intelligence sector.