Test Automation Engineer - Distributed, Networking, Security

Adecco; United Kingdom; On-site; GBP 50,000 - 70,000; Full time

Benefits offered by this job

Fully remote UK-based role

Flexible working arrangements

Job summary

Adecco is seeking a Test Automation Engineer to build and enhance automated testing across complex distributed systems. The role spans cloud services, networking, and hardware with testing frameworks, tooling and infrastructure development.

You will ensure reliability, security and production readiness while collaborating with engineers. You will design end-to-end testing environments, implement resilience and chaos-testing, and integrate testing into CI/CD pipelines.

Qualifications

• Experience building automated test frameworks and infrastructure.

Responsibilities

• Building automated test frameworks across cloud, networking and hardware platforms.
• Creating end-to-end testing environments using hardware and simulation technologies.
• Designing resilience, fault-injection and chaos-testing scenarios.
• Testing backend services, networking functionality and platform reliability.
• Supporting API, UI, integration and performance testing across React and Go applications.
• Developing automated testing for real-time and event-driven features.
• Integrating testing into CI/CD pipelines.
• Improving test reliability and reducing flaky test behaviour.
• Converting identified defects into automated regression coverage.

Skills

Go testing

CI/CD

Distributed systems

Python scripting

Shell scripting

Testing frameworks

Networking (TCP/IP)

Go/ Rust/ C

Tools

Playwright

Jest

GitHub Actions

Docker

Job description

Test Automation Engineer - Distributed Systems & Networking

£50,000 - £70,000 DOE + Benefits Fully Remote (UK)

About the Company

This is a fantastic opportunity to join a pioneering technology business operating at the forefront of secure communications and connectivity.

Our client develops innovative software solutions for organisations operating within highly secure, mission-critical environments. Founded by recognised industry experts, they are building technology that challenges conventional approaches and delivers real-world impact.

With ambitious growth plans and a highly capable engineering team, this is an exciting time to join.

The Opportunity

We're looking for a Test Automation Engineer to help build and enhance automated testing capability across complex distributed systems.

This role goes far beyond writing automated tests. You'll develop frameworks, tooling and infrastructure that validate software operating across cloud services, networks, hardware and real-world environments.

Working closely with engineers, you'll help ensure systems are reliable, resilient, secure and ready for production.

About You

Essential Skills

• Software engineering experience using Go, Rust or C, combined with Python or Shell scripting
• Experience building automated test frameworks, harnesses and testing infrastructure
• Understanding of distributed systems, asynchronous workflows and eventual consistency
• Experience with Go Testing, Playwright, Jest or similar frameworks
• CI/CD experience, ideally GitHub Actions
• Docker and containerised test environments
• Strong networking knowledge including TCP/IP, UDP, DNS, NAT, routing and tunnelling

Technical Knowledge

• Go testing and table-driven tests
• React component and end-to-end testing
• Performance and load testing
• Security testing including mTLS and certificate authentication
• SQL and database testing
• Server-Sent Events (SSE)
• Mock services, fixtures and test environments
• Fuzz, differential and property-based testing

Desirable Experience

• Rust testing frameworks
• Chaos engineering
• OpenWRT or embedded Linux
• Hardware-in-the-loop testing
• QEMU
• Cellular networking platforms
• Terraform testing
• Large-scale distributed environments

Additional Requirements

• Must be eligible and willing to undergo security clearance
• Sponsorship is not available

What You'll Be Doing

• Building automated test frameworks across cloud, networking and hardware platforms
• Creating end-to-end testing environments using hardware and simulation technologies
• Designing resilience, fault-injection and chaos-testing scenarios
• Testing backend services, networking functionality and platform reliability
• Supporting API, UI, integration and performance testing across React and Go applications
• Developing automated testing for real-time and event-driven features
• Integrating testing into CI/CD pipelines
• Improving test reliability and reducing flaky test behaviour
• Converting identified defects into automated regression coverage

What We Offer

• £50,000 - £70,000 DOE + Benefits
• Fully remote UK-based role
• Flexible working arrangements
• Complex engineering challenges within secure communications
• Modern technology environment working alongside experienced engineers

We are proud to be an Equal Opportunities Employer and are committed to creating an inclusive recruitment process for all applicants.

Technical Keywords

Test Automation Engineer, QA Automation, Go, Golang, Rust, C, Python, Shell Scripting, Distributed Systems, Docker, CI/CD, GitHub Actions, Playwright, Jest, Integration Testing, Performance Testing, Load Testing, Fuzz Testing, Chaos Engineering, SQL, React Testing, API Testing, SSE, mTLS, X.509, TCP/IP, DNS, NAT, OpenWRT, Embedded Linux, QEMU, Terraform, Secure Communications, Platform Testing