Senior Software Engineer in Test (SDET)

Top 3 reasons to join us

• Big chance to build Fintech system, large data
• International & English environment
• Apply new Tech-Stack, Technology and more

Job description

About Timo

Launched in 2015, Timo pioneered digital banking in Vietnam with a mission to make banking faster, simpler, and more accessible.

Today, as part of one of Southeast Asia’s leading digital financial services platforms, Timo is building secure, scalable, and customer-first digital banking experiences for millions of users across Vietnam.

We are looking for curious minds and driven talents from fintech, digital banking, and technology companies who are excited to move fast, build meaningful products, and help shape the future of banking in Vietnam.

About the Role

We are looking for a Senior Software Engineer in Test (SDET) to help shape and drive Timo's test automation strategy across mobile, backend, and integration layers.

You will own the design, build, and continuous improvement of our automation frameworks — partnering closely with Engineering, QA, and DevOps to raise the bar on release confidence, system reliability, and overall product quality. Beyond writing tests, you will define how Timo tests at scale and mentor others to do the same.

You will report to QA Lead.

What You Will Do

• Define and own Timo's test automation strategy across mobile apps, backend services, and integrations
• Design and build scalable, reusable automation frameworks across UI, API, integration, and data layers
• Identify high-risk areas and critical user journeys, and ensure they have proper automated coverage
• Integrate automated tests into CI/CD pipelines (Jenkins, GitLab CI) to enable continuous testing
• Analyze test results and drive quality improvements, close coverage gaps proactively
• Collaborate with Engineering, QA, and DevOps to improve system reliability and release confidence
• Mentor team members through code reviews, pairing, and knowledge sharing
• Continuously improve testing processes, frameworks, and tooling

Your skills and experience

What We Are Looking For

Experience

• 5+ years in test automation, with strong hands-on experience designing automation solutions
• Proven experience testing across multiple layers: UI, API, and system integration
• Comfortable working in agile, cross-functional product teams

Skills & Expertise

• Strong programming skills
• Hands-on with automation tools/frameworks: Selenium, Appium, Playwright, Robot Framework, or equivalent
• Solid understanding of test automation strategy: test pyramid, risk-based testing, and the boundaries between unit, API, and E2E testing
• Experience integrating tests into CI/CD pipelines: Jenkins, GitLab CI, or similar
• Experience with version control (Git) and modern development workflows
• Strong debugging, analytical, and problem-solving skills
• Professional working English: daily collaboration with Timo leadership and Kredivo's regional teams

Why you'll love working here

Our deliverable is a leading software that is changing the way people do banking. You will be proud of your work and you will share with everybody that you helped to build Timo.

You’ll be joining a team of experts who are technically savvy, creative, and who share the intention of reinventing banking in Vietnam. You work closely with international architects and front-end consultants, product managers, and designers to develop the system. You will learn a lot from them.

Company Benefits:

• Full benefits and salary during probation
• Premium health care insurance
• Competitive salary and learning culture
• Other benefits as per stated in Vietnamese Labor Law