Quality Assurance Test Analyst

Job description

QA Test Analyst – Migration Execution (Cards / Payments)

A leading global financial services organisation is seeking an experienced QA Test Analyst to join a large-scale issuer processor migration programme within a high-volume cards and payments environment.

This role is focused on hands-on execution of migration testing, validating system behaviour, ensuring data integrity, and supporting reconciliation across both legacy and new processing platforms.

The programme operates within a structured testing environment, and the team is looking for practical testers who actively execute tests and investigate results, rather than purely coordinating or oversight-focused profiles.

You will work closely with Data Migration specialists, Processing SMEs, and engineering teams to ensure that migration outcomes are accurate, reconciled, and production ready.

Key Responsibilities

• Execute hands-on migration and system testing across issuer processing platforms
• Develop and execute test cases and test scripts covering migration scenarios and distributed system behaviour
• Validate data migration outcomes, including data integrity, reconciliation, and parallel run results
• Perform API-level testing across microservices and integration layers
• Validate event-driven processing flows, including Kafka-based messaging
• Execute and support Java-based automated and functional tests using standard testing frameworks
• Investigate data discrepancies, reconciliation failures, and migration defects
• Log, track, and retest defects, working closely with engineering teams to support root cause analysis
• Support high-volume test cycles across distributed systems
• Execute tests within CI/CD pipelines and support test environment readiness

Skills & Experience Required

• Strong hands-on QA testing experience within complex technology environments
• Experience supporting system or data migration testing
• Experience with data validation, reconciliation, and data integrity testing
• Comfortable testing high-volume distributed systems and microservice architectures
• Experience executing tests in Java-based systems
• Hands-on experience with JUnit, Cucumber, or similar Java testing frameworks
• Experience testing REST / HTTP APIs
• Exposure to event-driven architectures, ideally Kafka
• Familiarity with CI/CD environments such as Jenkins or GitHub Actions
• Strong analytical and defect investigation skills

Desirable Experience

• Experience within cards, payments, or financial services platforms
• Familiarity with Kafka event streams and Apache Avro message formats
• Experience working in asynchronous, event-driven system architectures
• Exposure to performance or high-volume testing
• Awareness of containerised environments (e.g. Kubernetes)

Important CV Requirement

Candidates must clearly describe in their CV:

• Testing technologies they have personally used
• Specific tests they have executed (not just coordinated)
• Examples of migration, data validation, or reconciliation testing
• Technologies used when executing tests (e.g. Java, APIs, Kafka, CI/CD)

Contract Details

Duration: 12 months

Rate: £400–£450 per day (Inside IR35)

Location: Hybrid working – Central London

Extra information

Status

Open

Education Level

Secondary School

Location

City of London

Type of Contract

Full Time Jobs

Published at

16-03-2026

Profession type

ICT

Full UK/EU driving license preferred

No

Car Preferred

No

Must be eligible to work in the EU

No

Cover Letter Required

No

Languages

English