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Location: Lagos
Posted on: 2 July 2026
Employment Type: Full Time
Salary Range: 0 - 0 (Naira)
Deadline: 2 September 2026
Union Bank of Nigeria ("UBN") was established in 1917 and is one of Nigeria’s long-standing and most respected financial institutions, offering a portfolio of banking services to individuals, SMEs, commercial and corporate clients. With a robust geographical network comprising more than 300 service centres and over 950+ ATMs spread across Nigeria, we have remained committed to helping individuals, families and businesses grow for nearly a century.
We are recruiting to fill the position below:
Job Title: Quality Assurance Engineer
Location: Lagos
Job Type: Full time
Requirements
Application Closing Date
Not Specified.
Interested and qualified candidates should apply through: Click here to apply
Learn practical strategies to prepare confidently for your Quality Assurance Engineer interview, improve communication skills, and increase your chances of getting hired by 99%.
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The Nigerian banking sector has undergone a remarkable digital transformation over the past decade. Customers now expect seamless digital experiences through mobile banking applications, internet banking platforms, ATMs, Point-of-Sale (POS) terminals, USSD banking, digital wallets, agency banking, and real-time payment systems. Behind these services are complex software applications that must be secure, reliable, fast, and compliant with regulatory standards.
A single software defect in a banking application can have serious consequences, including failed financial transactions, inaccurate account balances, security vulnerabilities, regulatory violations, financial losses, and reputational damage. This makes Quality Assurance (QA) one of the most critical functions in any bank's Information Technology department.
A Quality Assurance Engineer ensures that banking software meets business requirements, complies with regulatory standards, performs reliably under heavy workloads, and delivers a seamless customer experience before it reaches production.
If you have been invited to interview for the position of Quality Assurance Engineer in a Nigerian bank, this comprehensive guide will help you prepare for every stage of the interview—from testing fundamentals and automation frameworks to banking systems, Agile methodologies, and behavioral interview questions.
A Quality Assurance Engineer is responsible for verifying that software products meet functional, technical, performance, and security requirements before they are released.
The role involves:
In banking, QA Engineers help ensure that software is reliable, secure, and compliant.
Banking software handles:
Poor-quality software can result in:
Quality Assurance helps prevent these issues before deployment.
Typical responsibilities include:
Interviewers expect knowledge of:
You should be able to:
Banks value:
Typical qualifications include:
Professional certifications include:
Understand the purpose of software testing:
Know the difference between:
Review each phase:
Understand how QA participates throughout the lifecycle.
Stages include:
Interviewers often ask candidates to explain the STLC in detail.
Many Nigerian banks use Agile development.
Understand:
QA Engineers participate throughout the sprint, not only after development is complete.
Know the purpose and application of:
Functional testing verifies that software behaves according to business requirements.
Examples include:
Includes:
Regression testing ensures that:
Regression suites are often automated to improve efficiency.
A quick check to verify that the core functionality of a new build is working before detailed testing begins.
Focused testing to confirm that a specific bug fix or minor change works as expected.
UAT is performed to ensure the application meets business needs.
Business users validate:
QA Engineers support planning, coordination, and issue resolution during UAT.
A comprehensive test plan includes:
Good test cases should be:
Use techniques such as:
Typical stages include:
Possible alternative statuses:
A quality defect report should include:
Be prepared to explain the difference between severity (technical impact) and priority (business urgency).
Automation is increasingly important in banking.
Benefits include:
However, not every test should be automated; exploratory testing and usability assessments often remain manual.
Review:
Even if automation is not the primary responsibility, basic knowledge is highly valued.
Modern banking systems rely heavily on APIs.
Understand:
Popular tools include:
QA Engineers should know basic SQL.
Review:
You may be asked to verify whether database records match application behavior.
Performance testing measures:
Common tools include:
Banking software must be secure.
Review:
Understand the importance of testing against common security vulnerabilities.
Many banks prioritize mobile banking.
Testing considerations include:
Modern QA teams integrate testing into CI/CD pipelines.
Understand:
Continuous testing helps detect issues early in the development process.
Common tools include:
Be familiar with creating test cases, tracking defects, and reporting progress.
Understand banking processes such as:
Testing financial systems requires an understanding of business workflows and transaction integrity.
Familiarize yourself with:
QA Engineers help ensure software supports regulatory compliance through thorough validation and traceability.
Examples include:
Regression testing verifies that existing functionality continues to work correctly after changes such as bug fixes, enhancements, or system updates.
A test design technique that focuses on values at the edges of valid input ranges, where defects are more likely to occur.
A customer reports that money was deducted from their account but the recipient did not receive the funds.
Your testing approach should include:
After a software update, customers cannot log in to the mobile banking application.
Discuss:
A new transfer feature is ready for testing.
Explain how you would:
Use the STAR Method:
Prepare examples for:
Strong questions include:
"I have a strong understanding of software testing principles, including manual testing, defect management, API validation, database testing, and Agile development practices. I appreciate that banking applications demand exceptional reliability, security, and accuracy because even minor defects can have significant financial and regulatory consequences. I am detail-oriented, analytical, and committed to delivering high-quality software through structured testing, effective collaboration, and continuous improvement. I believe my technical skills and dedication to quality would enable me to contribute meaningfully to your engineering team."
To improve your chances of success:
Before your interview, ensure you can confidently discuss:
The Quality Assurance Engineer role in the Nigerian banking sector is essential to delivering secure, reliable, and compliant software that customers can trust. As banks continue to expand their digital services, QA Engineers play a vital role in preventing defects, safeguarding financial transactions, and supporting excellent customer experiences.
To succeed in your interview, demonstrate a strong understanding of software testing methodologies, automation fundamentals, Agile practices, API and database testing, and the unique requirements of banking applications. Equally important are your analytical mindset, attention to detail, communication skills, and ability to work collaboratively within cross-functional teams.
By combining technical expertise with a solid understanding of banking operations and regulatory expectations, you can position yourself as a strong candidate ready to contribute to the delivery of high-quality financial software. Thorough preparation, hands-on practice, and confidence in explaining your testing approach will significantly increase your chances of securing a Quality Assurance Engineer role in Nigeria's banking sector. I wish you every success in your interview and your career in software quality assurance.
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