Quality Assurance Engineer

Job description

Stargate Financial Limited is a dynamic and fast-growing fintech company revolutionizing financial access in Zambia. We provide MOU-based loans through our flagship Loan Gate app, and instant short-term microloans via our Bwangu Bwangu product on Zamtel. At Stargate, our mission is to empower individuals with accessible, reliable, and innovative financial solutions tailored to meet their immediate needs. Our vision is to become Africa’s
most trusted digital finance partner, delivering fast, secure, and inclusive financial services to underserved markets.
We are a company that values agility, impact, and continuous improvement, and we believe in building a culture where technology meets purpose.

About the Role
We’re seeking an experienced Quality Assurance Engineer with software development expertise to ensure the delivery of robust, error-free mobile applications and seamless USSD experiences. The ideal candidate has a strong background in both QA and full-stack development and is passionate about shipping high-quality products. You will be responsible for crafting detailed test plans, writing and automating tests, and working closely with our product and development teams to maintain exceptional user experiences across our platforms.

Objectives of this Role

Interpret, build upon, and comply with company quality assurance standards
Develop and maintain robust test plans and test cases for mobile apps, APIs, and USSD platforms
Collaborate with developers and product managers to ensure features meet functional and performance expectations
Safeguard the stability of production systems by validating every release
Contribute to a QA culture that values precision, proactivity, and accountability

Key Responsibilities

Plan, develop, and execute testing strategies for React Native mobile apps, React.js web apps, and Node.js/Express APIs
Create detailed test cases and test scenarios for every product feature
Perform both automated (using Detox or similar) and manual testing
Validate USSD functionality and ensure seamless integration with mobile operators like Zamtel
Collaborate with developers to identify root causes of bugs and resolve them efficiently
Monitor and maintain bug tracking systems, test logs, and release notes
Participate in sprint planning and provide QA insights into technical feasibility and testing timelines
Ensure testing is integrated into CI/CD pipelines
Support continuous improvement by staying updated on new QA tools and best practices

Required Skills and Qualifications

Minimum 3 years of experience in a Quality Assurance or Full-Stack Development role
Strong knowledge of Node.js, Express.js, React Native, and mobile testing frameworks like Detox
Proficiency in manual and automated testing of APIs, mobile apps, and web apps
Familiarity with REST APIs and tools like Postman or Swagger
Experience working with Git and CI/CD pipelines
Excellent analytical, communication, and organizational skills
A passion for quality, attention to detail, and continuous improvement

Preferred Qualifications

Bachelor’s degree in Computer Science, Engineering, or a related field
Experience testing USSD or GSM-based financial platforms
Working knowledge of agile/scrum methodology
QA certifications (e.g., ISTQB, CQA, Six Sigma)
Exposure to database testing (MongoDB, PostgreSQL)

Why Join Stargate Financial Limited?

Be part of a fast-growing fintech with real-world impact
Collaborate with a team of passionate technologists and product innovators
Work on cutting-edge products that empower everyday users
Thrive in a culture that values ownership, impact, and continuous learning

Ready to help us build financial solutions that matter?
Apply today and help us ensure every product we ship meets the highest standards of quality and performance.