Senior QA Engineer

About Paystack

Paystack’s mission is to power African ambition. Over 300K businesses across Nigeria, South Africa, Ghana, and Kenya use Paystack’s modern payments gateway, including Qatar Airways, MTN, Burger King, UPS, Africa World Airlines, AXA Mansard Insurance, FairMoney, PiggyVest, Crocs, Under Armour, Richemont Lifestyle Group, and many others.

Over the last 10 years, we’ve built products that have helped shape online payments in Africa, from automated recurring payments to direct bank payments and automated chargebacks. Today, Paystack is part of The Stack Group (TSG), a family of technology brands building modern infrastructure across payments, banking, consumer products, and emerging technologies.

At Paystack, we hire talented people, treat them with genuine respect, and give them the space, resources, and support to do the best work of their lives. We’d love your help.

About the Senior QA Engineer role

The Quality Engineering team is the standard-bearer for how the Paystack platform is tested end to end. We build the infrastructure, tooling, and automated coverage that let engineering teams ship quickly without compromising reliability, across API, Dashboard, mobile, and POS channels. As a Senior QA Engineer, you will be a hands-on senior individual contributor building and maintaining automated test suites for critical, customer-impacting flows. You will work across services such as payments processing, transfers, refunds, and merchant banking, designing robust contract, integration, end-to-end, and performance tests that run in our deployment pipelines and gate releases. Your voice will be heard and your work will have direct, measurable impact on the reliability of payments across Africa.

This is a full-time position

We’ll trust you to

• Design, build, and maintain automated test suites (contract, integration, end-to-end, and performance) for critical payment flows, integrated into CI/CD and gating deployments

• Improve the testability of new and existing services through test modes, test data, stubs for third-party dependencies, and better observability

• Own quality for one or more product areas, partnering closely with the engineering teams that build them

• Contribute to the shared frameworks, tooling, and test data infrastructure used across the team

• Review test code and technical designs, and help raise the quality bar across engineering

• Collaborate with teams inside and outside engineering to understand merchant and customer pain points and translate them into test coverage

You’ll thrive in this role if you have

• Strong experience in at least one major programming language (TypeScript/JavaScript preferred)

• Proven experience building and maintaining test automation frameworks API, and ideally web and mobile

• Solid experience performing functional and non-functional automated tests against complex web applications and APIs

• Strong SQL and data validation skills

• A good understanding of CI/CD pipelines and how automated tests gate deployments

• Sound judgement about what to test, at what level, and where coverage adds the most value

• Strong communication skills and the ability to work independently or as part of a team

• Experience testing payments, fintech, or other high-reliability, high-scale systems

• Experience with performance and load testing and with observability tooling

• Exposure to mobile UI test automation

• Experience using AI to automate workflows, complete tasks more efficiently, and spot opportunities where AI can add value to how we work

Benefits

• Competitive compensation package and benefits

• 13th month bonus

• TSG Equity compensation

• Full medical coverage

• Wellbeing stipend

• Generous leave and sabbatical policies

• Hybrid working environment

• Smart, kind colleagues who are invested in your growth.

Paystack is an equal opportunity employer and prohibits discrimination and harassment of any kind. We’re committed to providing employees with a work environment that is progressive and open-minded. Our employment philosophy is to hire the best people and empower them to do the best work of their lives. Employment decisions are based on business needs and individual merit without regard to race, color, religion, ethnicity, sexual orientation, nationality, marital status, gender, or age.