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Senior API Automation Test Engineer

infolet • Poland
Remote Relocation
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Lead the API migration and validation process from MuleSoft to Quickwork to ensure functional and performance parity. Design and execute automated API tests, performance tests, and end-to-end business flow validations. Requires 5+ years of experience in API integration testing with proficiency in Postman, Newman, and CI/CD pipelines.

Key Highlights
Focus on API migration and parity validation between MuleSoft and Quickwork
Implementation of automated API and performance testing frameworks
Integration of automated tests into GitLab CI/CD pipelines
Key Responsibilities
Design and execute automated API tests using Postman and Newman
Compare API responses between MuleSoft and Quickwork to verify functional parity
Develop automated tests using RestAssured, pytest-requests, or equivalent tools
Perform performance testing using JMeter, k6, or Gatling
Design regression and end-to-end tests for business flows
Integrate automated tests into GitLab CI/CD pipelines
Execute UAT tests and document results
Analyse API performance and investigate defects
Technical Skills Required
API Testing Postman GitLab CI/CD
Benefits & Perks
Relocation package (4500 PLN total value)
Extended medical care
Multisport Benefit card
Life insurance
Nice to Have
Experience with MuleSoft and Quickwork
Knowledge of Pact or other contract testing tools
Experience with TM Forum Open APIs or MEF Sonata APIs
German language skills

Job Description

SUMMARY

💰 130 - 150 PLN/h (B2B)

📍 Remote 100%

📆 Duration: Until 16.04.2027

💼 Senior

Project

Join a project focused on API migration and validation, ensuring functional and performance parity between existing MuleSoft APIs and their new implementations in Quickwork. The role involves designing and executing automated API tests, validating end-to-end business flows, conducting performance tests, and supporting User Acceptance Testing (UAT).

The main objective is to ensure that migrated APIs behave consistently, meet performance requirements, and do not negatively impact existing integrations.

You will

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