Application Developer - SC Cleared (City of London)

Contract Opportunity: Application Developer – SC Cleared

Hybrid: 3 days on-site (London SW1A), 2 days remote

Start: ASAP | Contract until March 2026

Outside IR35 | £550 per day

We’re hiring a Developer / Platform Engineer with active SC clearance to help deliver and maintain scalable, secure, and flexible communication platforms for a critical national programme.

This is a unique opportunity to work at the intersection of real-time collaboration , containerisation , and infrastructure automation , supporting a big governmental programme focussing on the secured communications platform.

WHAT YOU WILL DO

• Develop and deploy containerised applications using Docker and Kubernetes
• Customise and manage stack of secured communications platforms
• Build scalable, secure deployment architectures for real-time communication
• Automate deployments and CI/CD pipelines using GitLab CI, Jenkins, or ArgoCD
• Create custom integrations, plugins, bots, and SSO/LDAP connectors
• Harden, secure, and monitor platforms with TLS, OAuth2, RBAC , and Zero Trust principles
• Troubleshoot and support complex platform deployments
• Collaborate with DevOps, AppSec, and engineering teams
• Document everything from architecture and configuration to custom builds

WHAT YOU NEED TO BE SUCCESFUL

• Strong hands-on experience with Docker & Kubernetes in live production environments
• Scripting/programming skills – JavaScript/Node.js , Python , or Bash
• Experience with Linux systems , network configuration, and firewalls
• Familiarity with CI/CD pipelines and tools (GitOps, ArgoCD, Helm)
• Experience with MongoDB , PostgreSQL , Redis and secure back-end infrastructure

✅ Why Apply?

• Collaborate on secure, cutting-edge communication platforms
• Join a critical programme making a real-world impact
• 12-month+ contract with hybrid flexibility
• Outside IR35 | £550/day
• Engage with a modern tech stack and forward-thinking teams

Apply now or message us directly to learn more.