Software Developer In Test

Ncounter Limited; Greater London; Hybrid; GBP 65,000 - 75,000; Full time

Job summary

A leading technology company in London seeks a Software Developer in Test (C# or TypeScript) to enhance automation frameworks within a collaborative team model. In this hybrid role, you will design and maintain modern automation solutions, work closely with engineers to improve quality, and support CI/CD initiatives. Candidates should possess strong coding skills in C# or TypeScript and experience with automation frameworks like Playwright or Selenium.

Qualifications

• Experience with automation frameworks is essential.
• Strong coding abilities in C# or TypeScript are required.
• Familiarity with CI/CD practices is beneficial.

Responsibilities

• Design, extend and maintain modern automation frameworks.
• Develop reliable UI and integration tests.
• Collaborate with engineers to enhance code quality.
• Support delivery of key projects across the web portfolio.
• Contribute to CI/CD pipeline improvements.

Skills

Strong coding skills in C# or TypeScript

Experience with at least one framework: Playwright or Selenium

Ability to read and work with full-stack code (React / C#)

Understanding of automation within a developer-in-test environment

Clear, collaborative communication style

Tools

Playwright

Selenium

Job description

Overview

Software Developer in Test (C# or TypeScript) – London | Hybrid 3 days per week | £65,000 to £75,000 base plus discretionary bonus

Ncounter is partnered with a high-performing technology team who are looking for an SDET to help deliver complex, user-facing products. This is a role for someone who thinks like a developer but specialises in quality, working side by side with engineers to ship reliable, well-tested features at pace. Personality is just as important as technical expertise; they want someone collaborative and personable who will strengthen the team culture.

Team and environment

You'll be joining the Web Engineering group, which works across React and C#, and the role sits within a developer-in-test model that blends QAs and developers. The team is made up of juniors through to a team lead, with a strong culture of collaboration, reviews and shared learning. Hybrid working is three days per week in a new central London office.

Responsibilities

• Design, extend and maintain modern automation frameworks
• Develop reliable UI and integration tests with Playwright or Selenium
• Collaborate with engineers to improve testability and overall code quality
• Contribute to CI/CD pipeline improvements
• Support delivery of key projects across the web portfolio

Must-have skills

• Strong coding skills in C# or TypeScript
• Experience with at least one framework: Playwright or Selenium
• Ability to read and work with full-stack code (React / C#)
• Understanding of automation within a developer-in-test environment
• Clear, collaborative communication style

Nice to have

• Knowledge of DevOps practices and CI/CD pipelines
• Broader test automation experience across multiple tools
• Exposure to cloud environments

Interview process

The interview process is structured and efficient: an initial 30-minute call with engineers, a focused take-home task in C# or TypeScript, then an onsite session with senior engineers and stakeholders.

Next steps

If you are motivated by building frameworks, improving automation reliability, and embedding quality at the heart of engineering, we'd like to hear from you. Please send your CV to Ncounter with a short note on your recent automation work and the impact it delivered.