Senior Test Automation Engineer​/SDET Python, SQL, Big Data and Aladdin - Long Ter

Senior Test Automation Engineer / SDET – London

Contract opportunity at Resillion, working on Asset and Fund Management on the Aladdin platform. The role involves building and maintaining advanced test automation frameworks, leading quality initiatives, and mentoring junior engineers.

• Design, build, and maintain advanced test automation frameworks using Playwright, Spec Flow, and custom tools in C#, Python, and JavaScript/Type Script.
• Drive end‑to‑end test coverage across UI, API, and data layers – functional, performance, and non‑functional testing.
• Act as the 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, mentor junior engineers, and implement strategic improvements in tooling and processes.
• Provide technical demos and knowledge sharing across teams.

• Recent, hands‑on experience in Asset / Fund / Investment Management (minimum 5 years UK address history required).
• Proficiency in C#, Python, JavaScript/Type Script, and SQL.
• Experience with Playwright, Spec Flow, Azure Service Bus, Charles River, SAP, and Aladdin.
• Strong data testing skills (SQL, Snowflake, Databricks), performance/load testing, API and UI testing.
• Deep understanding of Agile, TDD, and quality engineering.
• Leadership experience mentoring and improving quality processes.
• Comfortable using Azure Dev Ops, Git, Jira, Confluence, PowerPoint, and Excel.

• Experience with Charles River or Aladdin platforms.
• Exposure to large‑scale transformation programmes.
• Cloud testing in Azure environments.

• Collaborative environment with quality at the heart.
• Ownership of strategic testing initiatives in a critical industry.
• Opportunity to work with advanced testing stacks in financial technology.
• Flexible working and strong focus on work‑life balance.
• Competitive salary.

• Location:
  
  Hybrid – 3 days/week in Central London.
• Type:
  Long‑term contract.

If you’re a senior‑level Test Automation Engineer or SDET with a background in asset or investment management and 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.