Location: London (Hybrid) | Practice Area: Technology & Engineering | Type: Permanent
Drive test automation innovation and engineering excellence in financial technology
The RoleAs a Principal Software Developer in Test (SDET) at Capco, you'll lead the strategy, architecture, and implementation of robust test automation frameworks across financial services projects. You'll work closely with cross-functional teams to deliver quality-first engineering solutions using modern testing tools and practices. You'll also mentor engineers, foster best practices in quality engineering, and help shape Capco's automation testing capability. You'll champion AI-enabled ways of working, encouraging the responsible use of approved AI and automation tools to improve engineering productivity, accelerate test delivery, and enhance software quality while ensuring appropriate governance, human oversight, and responsible AI practices.
What You'll Do- Architect reusable, scalable test automation strategies and frameworks across web, mobile, and API platforms, applying AI-enabled engineering approaches where appropriate to improve efficiency and test coverage.
- Design, build, and maintain automated test suites for user interfaces, APIs, and backend services using modern testing frameworks.
- Integrate automated testing into CI/CD pipelines while optimising cloud-based testing platforms to support reliable and scalable software delivery.
- Lead test data management, performance and load testing, accessibility validation, and continuous quality improvement across delivery teams.
- Mentor engineers, establish testing standards, and encourage the responsible use of approved AI tools and automation to improve collaboration, productivity, and engineering quality.
- Strong experience delivering UI and mobile test automation using Selenium, WebDriver, Cucumber, Robot Framework, or similar technologies.
- Proven expertise in API testing (REST/SOAP) using tools such as Postman, JMeter, or equivalent testing frameworks.
- Experience working with cloud-based testing platforms including BrowserStack, Sauce Labs, Appium, or comparable services.
- Solid understanding of quality engineering tooling including Jira, Jenkins, GitHub, SonarQube, and modern CI/CD practices.
- Experience using AI-enabled tools responsibly to improve engineering productivity while maintaining appropriate human oversight, governance, accessibility, and software quality.
- Development experience using Java, Ruby, Python, or similar programming languages.
- Experience delivering performance and load testing using JMeter, LoadRunner, Performance Center, or equivalent tools.
- Exposure to cloud platforms such as AWS, Azure, OpenShift, or Tanzu/Cloud Foundry.
- Experience applying DevOps practices, Agile methodologies, and accessibility standards including WCAG/AAA.
- Interest in responsible AI, automation, and emerging quality engineering technologies to continually improve software testing and delivery.
- Deliver high-impact technology solutions for Tier 1 financial institutions.
- Work in a collaborative, flat, and entrepreneurial consulting culture.
- Access continuous learning, training, and industry certifications.
- Be part of a team shaping the future of digital financial services.
- Help shape the future of digital transformation across Financial Services & Energy.
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: Eight complimentary backup care sessions for emergency childcare or elder care.
- Holiday Flexibility: Five 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 through workshops, certifications, and e-learning. You'll also be assigned a Business Coach from Day One to support your professional development.
- Healthcare Access: Convenient online GP services.
- Extra Perks: Wellhub (Gympass), travel insurance, Tastecard, season ticket loans, Cycle to Work, and dental insurance.
We're committed to making our recruitment process accessible and straightforward for everyone. If you need any adjustments at any stage, just let us know—we'll be happy to help. We value each person's unique perspective and contribution. At Capco, we believe that being yourself is your greatest strength. Our #BeYourselfAtWork culture encourages individuality and collaboration—a mindset that shapes how we work with clients and each other every day.
#LI-DNI
Skills Required
- UI and mobile test automation using Selenium, WebDriver, Cucumber, or Robot Framework
- API testing (REST/SOAP) and tools such as Postman or JMeter
- Cloud-based test platforms such as BrowserStack, Sauce Labs, or Appium
- Test lifecycle and CI/CD tools: Jira, Jenkins, GitHub, SonarQube
- Strong knowledge of HTML, JavaScript, CSS, REST, JSON, and accessibility standards
- Development/coding experience in Java, Ruby, or Python
- Load and performance testing tools such as JMeter, LoadRunner, or Performance Center
- Cloud platform exposure (AWS, Azure, OpenShift, PCF)
- Experience with DevOps practices, Agile methodologies, and AAA accessibility standards
- Experience migrating on-premise systems to cloud ecosystems
What the Team is Saying
Capco Compensation & Benefits Highlights
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Healthcare Strength — Health, dental, and vision coverage are described as solid with low copays and a good variety of choices, complemented by mental‑health resources, an EAP, and wellbeing events. Company materials emphasize global availability of these supports.
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Parental & Family Support — Enhanced maternity, paternity, adoption, and shared parental leave are highlighted, with several months of maternity leave noted in the U.S. in some accounts. Additional paid leave is called out for life events such as pregnancy loss, fertility treatment, menopause, and bereavement.
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Wellbeing & Lifestyle Benefits — A global wellbeing program, coaching/mentoring, mental‑health initiatives, and wellness reimbursements (e.g., gym, fitness) are positioned as core parts of the offering. Flexible working is emphasized alongside regionally tailored wellbeing events.
Capco Insights
What We Do
Capco, a Wipro company, is a global management and technology consultancy specializing in driving transformation in the energy and financial services industries. Capco operates at the intersection of business and technology by combining innovative thinking with unrivalled industry knowledge to fast-track digital initiatives for banking and payments, capital markets, wealth and asset management, insurance, and the energy sector. Capco’s cutting edge ingenuity is brought to life through its award-winning Be Yourself At Work culture and diverse talent. TRUSTED ADVISORS - Our collaborative and entrepreneurial approach position us as trusted long-term partners to our clients. DEEP EXPERTISE - Clients look to us for clear guidance, proven expertise, and the support they need to set their companies up for success. DISRUPTIVE SOLUTIONS- We do not provide off -the-shelf answers to clients’ challenges. Instead, we work in close collaboration to understand the issues, and craft disruptive, bespoke solutions. ACCOUNTABILITY AND OWNERSHIP - We recognize every client has distinct needs and expectations, and we take ownership and accountability for the solutions we design, build, and deliver.
Why Work With Us
We support and encourage an inclusive culture, entrepreneurial outlook and independent thinking. Capco is not about organizational charts and rigid hierarchies – we want all employees to feel that Capco is their firm to own and run. We believe diversity powers innovation. Be Yourself At Work (#BYAW) is an integral and underlying part of our culture
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Capco Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
