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For Companies At a Glance
- Tasks: Collaborate with teams to develop automated tests and enhance testing infrastructure.
- Company: Join Valstro, a dynamic FinTech company redefining trading technology.
- Benefits: Enjoy competitive pay, unlimited PTO, and a strong benefits package.
- Why this job: Make a real impact in a people-first environment while working with cutting-edge tech.
- Qualifications: 2-4 years in SDET or software development, solid TypeScript/JavaScript skills.
- Other info: Great career growth opportunities in a collaborative, remote-first culture.
The predicted salary is between 108000 - 135000 ÂŁ per year.
We’re looking for an SDET or a software engineer with a taste for quality who’s ready to level up their career and make a real impact at Valstro. Our goal is to build scalable, cost‑efficient, and maintainable services using modern software development practices — and that means quality is non‑negotiable.
Valstro is an ambitious FinTech partnership on a mission to redefine trading technology for global, multi‑asset class institutional clients. Whether you see us as a startup or a "baby enterprise," one thing is clear: we are a people‑first company. Our success is built on the talent, collaboration, and motivation of our team.
As an SDET, you’ll work alongside our engineering team to build and expand our testing infrastructure, ensuring our financial products are reliable, secure, and scalable. This isn’t a manual QA role — you’ll be writing code, learning new frameworks, and helping embed quality throughout our development lifecycle.
What will you be doing?
- Collaborate with product and engineering teams to understand features and develop appropriate automated tests.
- Write clear, maintainable test automation code in TypeScript using a bespoke in‑house solution wrapping Playwright.
- Maintain and extend the bespoke testing framework to support automated tests.
- Help identify and document bugs, working with developers to resolve issues quickly.
- Participate in code reviews to catch potential issues early.
- Learn from senior engineers and contribute ideas for improving our testing practices.
Requirements
The ideal candidate has:
- 2‑4 years of experience in SDET or software development roles.
- Solid programming fundamentals in TypeScript/JavaScript. Functional programming a plus.
- Ability to debug and troubleshoot problems across the stack.
- Experience writing automated tests. Familiarity with at least one test automation framework (Selenium, Playwright, Cypress, etc.).
- Comfortable working with APIs, both REST and GraphQL endpoints.
- Basic understanding of CI/CD concepts and tools, networking, monorepos, distributed services architecture, Docker and containers.
- Passion for delivering high‑quality, performant software in a collaborative team environment.
- Curiosity and eagerness to learn new technologies and testing approaches.
- Strong communication skills for our remote‑first environment – you can explain technical concepts clearly in writing.
- Self‑motivated and comfortable asking questions when you need help.
- A good portion of the following:
- Any fintech or financial services experience.
- Fluent use of terminal environments and Windows Subsystem for Linux (WSL) for day‑to‑day development and testing activities.
- Bonus: Experience with Loki/Tempo/Grafana for system monitoring and test result analysis.
- Bonus: Experience developing testing frameworks for equity trading systems in Capital Markets.
Personal Qualities We Value
- Curious: Natural inquisitiveness and desire to understand how systems work – and how they might break.
Benefits
Valstro offers an excellent benefits package, including pension or 401(k) plans, unlimited PTO and highly competitive compensation. Our leadership team brings a wealth of experience and deep industry knowledge, and despite being a young company, we believe we have carefully dialed in our product‑market fit. As we move forward in executing our vision for clients, the Engineering team is looking for client‑obsessed, delivery‑focused high performers (with a healthy dose of humility) – future FinTech leaders ready to make an impact.
Seniority level: Mid‑Senior level
Employment type: Full‑time
Job function: IT Services and IT Consulting
Software Development Engineer in Test (SDET) in London employer: Valstro
Contact Detail:
Valstro Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Software Development Engineer in Test (SDET) in London
✨Tip Number 1
Network like a pro! Reach out to current employees at Valstro on LinkedIn or other platforms. A friendly chat can give you insider info and might even lead to a referral, which can double your chances of landing that interview.
✨Tip Number 2
Show off your skills! Create a GitHub repository showcasing your test automation projects, especially in TypeScript. This not only demonstrates your coding abilities but also your passion for quality software development.
✨Tip Number 3
Prepare for the technical interview by brushing up on your debugging and troubleshooting skills. Practice explaining your thought process clearly, as communication is key in a remote-first environment like Valstro.
✨Tip Number 4
Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining the team at Valstro.
We think you need these skills to ace Software Development Engineer in Test (SDET) in London
Some tips for your application 🫡
Tailor Your CV: Make sure your CV reflects the skills and experiences that align with the SDET role. Highlight your programming fundamentals in TypeScript/JavaScript and any experience with automated testing frameworks. We want to see how you can contribute to our mission!
Craft a Compelling Cover Letter: Your cover letter is your chance to show us your personality and passion for quality software. Share why you're excited about the role and how your curiosity drives you to learn new technologies. Let us know how you can make an impact at Valstro!
Showcase Your Projects: If you've worked on relevant projects, whether personal or professional, don’t hesitate to include them! We love seeing examples of your test automation code or any frameworks you've developed. It gives us insight into your hands-on experience and problem-solving skills.
Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows us you’re proactive and keen to join our team!
How to prepare for a job interview at Valstro
✨Know Your Tech Stack
Make sure you’re well-versed in TypeScript and any test automation frameworks like Playwright or Selenium. Brush up on your programming fundamentals and be ready to discuss how you've used these technologies in past projects.
✨Showcase Your Problem-Solving Skills
Prepare to talk about specific challenges you've faced in testing or development. Think of examples where you debugged issues or improved testing processes, as this will demonstrate your ability to contribute to Valstro's mission of quality.
✨Understand the Company Culture
Valstro values collaboration and a people-first approach. Familiarise yourself with their mission and be ready to discuss how you can fit into their team-oriented environment. Highlight your curiosity and eagerness to learn new technologies.
✨Ask Insightful Questions
Prepare thoughtful questions about the role, the team, and the company’s future. This shows your genuine interest in the position and helps you assess if Valstro is the right fit for you. Consider asking about their testing practices or how they handle CI/CD.
