Senior Software Development Engineer in Test (SDET)

About this role

Senior Software Development Engineer in Test (SDET)

Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent

Advance your testing career while shaping digital finance with automation

The Role

Capco is growing our Engineering team and we’re looking for experienced SDETs with a passion for delivering innovative solutions in financial services. If you enjoy solving complex problems, working with cloud-native technologies, and collaborating in agile teams, we’d love to hear from you.

As a Senior Software Development Engineer in Test (SDET) at Capco, you’ll contribute to high-impact, client-facing projects that shape the future of financial services. You’ll work alongside talented engineers, have access to industry-leading training, and get the opportunity to grow your skills across multiple platforms. You will also get the chance to work across different domains within FS & Energy.

What You’ll Do

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Create, drive, and build test strategies that are robust, reusable, and scalable

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Develop and manage test artefacts - plans, specifications, scripts, and reports

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Manage test environments and generate consistent test data

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Execute UI and API tests using modern automation tools and practices

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Collaborate with engineers and cross-functional teams to ensure quality-first delivery

What We’re Looking For

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Strong knowledge of at least one OOP language (Java, Scala, or JavaScript preferred)

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Experience building test automation frameworks from scratch (e.g., Selenium, Cypress, Playwright)

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Exposure to UI and API automation layers

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Familiarity with Jira, TestRail, Jenkins, GitHub, and SonarQube

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Understanding of CI/CD pipelines and cloud infrastructure

Bonus Points For

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Background as a developer

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Performance testing with JMeter, LoadRunner, or equivalent tools

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DevOps knowledge and public cloud experience (AWS, Azure, or GCP)

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Experience migrating applications to cloud environments

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Agile practices such as Scrum, Kanban, or Lean UX

Why Join Capco

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Deliver high-impact technology solutions for Tier 1 financial institutions

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Work in a collaborative, flat, and entrepreneurial consulting culture

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Access continuous learning, training, and industry certifications

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Be part of a team shaping the future of digital financial services

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Help shape the future of digital transformation across FS & Energy.

Benefits

We offer a competitive, people-first benefits package designed to support every aspect of your life:

• Core Benefits: Discretionary bonus, competitive pension, health insurance, life insurance and critical illness cover.

• Mental Health: Easy access to CareFirst, Unmind, Aviva consultations, and in-house first aiders.

• Family-Friendly: Maternity, adoption, shared parental leave, plus paid leave for sickness, pregnancy loss, fertility treatment, menopause, and bereavement.

• Family Care: 8 complimentary backup care sessions for emergency childcare or elder care.

• Holiday Flexibility: 5 weeks of annual leave with the option to buy or sell holiday days based on your needs.

• Continuous Learning: Your growth, your way - minimum 40 hours of training annually. Take your pick; workshops, certifications, e-learning. Also, Business Coach assigned from Day One: Get one-on-one guidance to fast-track your goals and accelerate your development.

• Healthcare Access: Convenient online GP services.

• Extra Perks: Gympass(Wellhub), travel insurance, Tastecard, season ticket loans, Cycle to Work, and dental insurance.

Inclusion at…