Senior Test Automation Engineer / SDET - Must have recent Asset / Fund / Investment Management experience - £78K - £100K plus benefits / Inside IR35 Contract

Company Description

Help us to achieve our goal to be the global leader in total quality services.

With your help we will achieve this by delivering Total Quality 360, a comprehensive suite of cutting-edge services which combine quality engineering, cyber security, conformance & interoperability and content quality to deliver end-to-end total quality solutions.

Here at Resillion, our culture is based on an ‘if you see something, say something’ attitude where we take responsibility. It’s one where we expect to adapt and embrace change as the company grows. It’s based on recognising the individual worth of every one of our employees and developing their skills to keep us all at the forefront of our industry.

Above all, it’s a culture where we’re passionate about what we do, and we’re committed to the greater good of the company.

If you would like to be part of our journey, then this role may be the one for you.

Job Description

Senior Test Automation Engineer / SDET 

SALARY - DOE - £78K - £100K plus benefits or (Inside IR35 contract)

• * Must have a recent Asset / Fund / Investment Management experience **
• *PLEASE NOTE THAT DUE TO BACKGROUND CHECKS WE REQUIRE A MINIMUM OF 5 YEARS UK ADDRESS HISTORY**
• Domain: Asset / Fund / Investment Management
• 📍 Location: Hybrid – 3 days/week in Central London
• 💼 Type: Permanent
• 🚀 Join a high-impact transformation program at Resillion

Why Join Resillion?

Are you an experienced SDET with a passion for financial services and high-impact testing solutions? At Resillion, we’re not just testing software – we’re shaping the future of asset and fund management platforms with cutting-edge automation and intelligent engineering.

We offer the chance to work on complex, enterprise-level projects involving technologies like Azure Service Bus, Charles River, SAP, and in-house Python-based applications. You’ll use modern tools like Playwright, SpecFlow, and Python in a TDD-first, Agile environment, helping deliver high-quality solutions at scale.

You won’t just code – you’ll lead, mentor, and transform.

What You’ll Be Doing

• ✅ Design, build, and maintain advanced test automation frameworks using Playwright, SpecFlow, and custom tools in C#, Python, and JavaScript/TypeScript.
• ✅ Drive end-to-end test coverage across UI, API, and data layers — covering functional, performance, and non-functional testing.
• ✅ Be the go-to technical leader, liaising between automation architects, engineering teams, and project stakeholders.
• ✅ Champion quality engineering practices and help build a best-in-class QA culture.
• ✅ Lead code reviews, guide junior engineers, and implement strategic improvements in tooling and processes.
• ✅ Provide technical demos and knowledge sharing across teams.
• What You Bring to the Table

✔️ Sector Expertise: Recent, hands-on experience in Asset / Fund / Investment Management is essential.
✔️ Tech Stack Mastery:

• Languages: C#, Python, JavaScript/TypeScript, SQL
• Frameworks: Playwright, SpecFlow, and custom tools ✔️ Testing Excellence:
• Strong in data testing (SQL, Snowflake, Databricks)
• Deep understanding of Agile and TDD
• Hands-on with performance/load testing, API, and UI testing
• ✔️ Leadership: Proven experience in mentoring, leading test strategy, and improving quality processes
• ✔️ Tooling: Confident using Azure DevOps, Git, Jira, Confluence, Visio, PowerPoint, and Excel

Bonus Points For

✨ Experience with Charles River or Aladdin platforms
✨ Exposure to large-scale transformation programs
✨ Cloud testing in Azure environments

What’s In It for You?

• A collaborative environment where quality is at the heart of everything
• Ownership of strategic testing initiatives in a critical industry
• The opportunity to work with some of the most advanced testing stacks in financial tech
• Be part of a diverse, passionate team that values technical excellence and continuous improvement
• Competitive salary, flexible working, and a strong focus on work-life balance
• 📩 Ready to Make an Impact?

If you’re a senior-level Test Automation Engineer or SDET with a background in asset or investment management, and you’re ready to shape next-gen testing frameworks, we’d love to hear from you.

Apply now and bring your expertise to where it matters most.