Open to opportunities

Emmanuel John

@emmanueljohn6

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ISTQB-certified QA Lead specializing in manual, automation, and API/Middleware testing for fintech and telecom.

Nigeria

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What I'm looking for

I’m looking to lead QA for large-scale digital and telecom/banking products, owning test strategy across manual and automation, partnering with Agile engineering teams, and improving release quality through stronger coverage and faster defect resolution.

I’m an ISTQB-certified QA professional with 6+ years of experience in software testing across telecommunications, banking, and fintech. I focus on delivering end-to-end software quality through strong test planning and execution in Agile/Scrum and other SDLC models.

I’ve led QA for MTN Benin’s Digital BSS Transformation, coordinating test efforts across mobile, API, and middleware systems while managing defect resolution with cross-functional teams. I’ve also built reusable test scripts to improve testing efficiency and validated API integrations and middleware services to ensure seamless system communication.

Across banking and telecom programs, I’ve strengthened regression coverage, reduced defect leakage, and supported regulatory compliance and defect-free releases. My work has helped reduce test execution time by 30% and increased the defect detection rate by 25% through improved automation and test coverage.

Experience

Work history, roles, and key accomplishments

Current

QA Lead

Current

Ouranos Technology

Oct 2023 - Present (2 years 9 months)

Led QA efforts for MTN Benin’s Digital BSS Transformation, ensuring end-to-end quality validation. Coordinated test planning, execution, and defect management for mobile, API, and middleware systems and improved defect resolution time with cross-functional teams.

API/Middleware Tester

Blue-chip Technology

Oct 2022 - Oct 2023 (1 year)

Designed and executed test cases for API integrations across telecom systems. Validated middleware services to ensure system communication and enhanced testing efficiency by developing reusable test scripts.

Public Test Lead

Grupa.io Consultancy

Jul 2021 - Sep 2022 (1 year 2 months)

Managed a QA team delivering core banking and API testing for Union Bank of Nigeria. Oversaw requirement analysis, test planning, and execution, ensuring regulatory compliance and defect-free releases.

Senior Test Engineer

Rutotech Global Solution

Jan 2020 - Jun 2021 (1 year 5 months)

Conducted system integration and regression testing for telecom solutions. Reported and tracked defects using Jira and coordinated resolution with developers.

Quality Assurance Analyst

Hyperion Global Solution

Jul 2017 - Dec 2019 (2 years 5 months)

Performed functional, regression, and UAT testing on banking applications. Worked with the Finacle Core Banking system to validate financial transactions and reduced defect leakage by implementing structured regression testing cycles.

Software Tester

Meristem Registrars

Jan 2012 - Jan 2013 (1 year)

Tested stock management applications and ensured accuracy of financial reconciliations. Conducted software testing activities to support reliable banking/financial records.