Senior Test Automation Engineer / SDET - London - Python, SQL, Big Data and Aladdin - Long Ter[...]

Resillion; Greater London; On-site; GBP 95,000 - 120,000; Full time

Benefits offered by this job

Flexible working

Collaborative environment

Ownership of strategic initiatives

Flexible working

Competitive salary

Job summary

A financial technology firm in London is looking for a Senior Test Automation Engineer to design and maintain advanced test automation frameworks. The ideal candidate will have over 5 years of experience in asset management, proficiency in programming languages such as C# and Python, and a strong background in quality engineering. This hybrid role promotes flexible working arrangements and offers a competitive salary in a collaborative environment focused on quality.

Qualifications

• Minimum 5 years experience in Asset / Fund / Investment Management.
• Hands-on proficiency in multiple programming languages.
• Strong data testing and performance testing skills.
• 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.

Responsibilities

• Design, build, and maintain test automation frameworks.
• Drive end-to-end test coverage across various layers.
• Mentor junior engineers and improve quality processes.
• 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.

Skills

C#

Python

JavaScript/TypeScript

SQL

Agile methodologies

Test automation frameworks

Quality engineering practices

Mentoring

Tools

Playwright

SpecFlow

Azure DevOps

Git

Jira

Confluence

PowerPoint

Excel

Charles River

Aladdin

Job description

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.

Key Responsibilities

• 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 – 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.

What You Bring

• Recent, hands‑on experience in Asset / Fund / Investment Management (minimum 5 years UK address history required).
• Proficiency in C#, Python, JavaScript/TypeScript, and SQL.
• Experience with Playwright, SpecFlow, 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 DevOps, Git, Jira, Confluence, PowerPoint, and Excel.

Bonus

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

Benefits

• 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.

Contract Details

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

Apply Now

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.