Senior Backend Test Automation Engineer

🏢 Summary: Full-time B2B contract for a Senior Backend Test Automation Engineer focused on backend microservices and distributed data platforms in the consumer electronics and streaming industry. The role involves integration testing, ETL and data pipeline validation, and automated test execution in JVM-based backend environments. Hybrid work model with 3 days onsite in Krakow and onboarding in Malmö. 🗂️ Requirements: Strong experience testing backend microservices, Hands-on experience with integration testing across distributed systems, Experience with Play Framework or JVM-based backend services in Java/Scala, Understanding of Apache Spark and testing data pipelines, Experience validating ETL and data processing workflows, Ability to manage test data and deterministic test environments, Experience with CI/CD and automated test execution, Ability to debug failures across services, databases, queues, and pipelines, English proficiency 📃 Skills: Java, Scala, Play, Akka, Spark, SQL, ScalaTest, JUnit, Testcontainers, Docker, Kubernetes, GitHub, Jenkins, Azure 🏢 Description: Senior Backend Test Automation Engineer with strong data platform experience. Industry: Technology solutions – consumer electronics, software, streaming Client: Global enterprise, Swedish entity Work model: Full time, hybrid – 3 days/week on-site from Krakow (Equal Business Park) office Project language: English Onboarding: 3 days in Malmö, Sweden Start: ASAP or ideally within 1 week notice, latest start 27th July 2026 Assignment type: B2B Remuneration: up to 195 PLN/h net + VAT FTE: Full-time Requirements: - Strong experience testing backend microservices rather than web UIs - Hands-on experience with integration testing across distributed systems - Experience with Play Framework or JVM-based backend services in Java/Scala - Good understanding of Apache Spark and testing data pipelines - Experience validating ETL/data processing workflows - Comfortable managing test data, data dependencies, and deterministic test environments - Experience with CI/CD and automated test execution - Ability to debug failures across multiple services, databases, queues, and pipelines Likely technical stack includes: - Java and/or Scala - Play Framework or Akka - Apache Spark - SQL - Integration test frameworks such as ScalaTest, JUnit, Testcontainers - Docker/Kubernetes - GitHub Actions, Jenkins, Azure DevOps, or similar

🏢 Summary: Full-time hybrid Backend Developer contract focused on modernizing backend services, migrating authentication systems to OAuth, and building Spark-based data migration pipelines. The role involves upgrading Java/Scala ecosystems, automating transformations with GenAI tooling, and extending Scala/Play Framework backends in an English-speaking international environment. 🗂️ Requirements: Production experience with Java, Production experience with Scala, Knowledge of Play Framework internals, Experience with Spark, Knowledge of OAuth authentication patterns, Availability for hybrid work in Krakow, English proficiency 📃 Skills: Java, Scala, Play, Spark, OAuth, GenAI, React, TypeScript, Gradle, CI/CD 🏢 Description: Industry: Technology solutions - consumer electronics, software, streaming Client: global enterprise, Swedish entity Work model: full time, hybrid 3 days/week on-site fromKrakow (Equal Business Park) office Project language: English Onboarding : 3 days in Malmo, Sweden Start: ASAP or 1 week notice ideally / at latest start 27th July 2026 Assignment type: B2B Remuneration: up to 200 PLN/h net + VAT FTE: full-time Summary: The Backend Developer role is aimed at enhancing and modernizing backend services and pipelines within the organization. This position primarily focuses on improving system performance, ensuring robust authentication mechanisms, and implementing automation to streamline processes. Main Responsibilities: Modernise backend services and pipelines by upgrading to the latest JDK, Scala 3.x, and Play Framework 3.x. Apply GenAI tooling to automate code transformations, dependency resolution, and compatibility fixes, producing reusable tools and documentation. Migrate authentication frameworks from legacy APIs to OAuth-based solutions across various backend services. Replace multiple data stores with a single versioned table, creating Spark/Java batch pipelines for backfill/migration and extending Scala/Play backends. Key Requirements: Hands-on experience with production Java/Scala services . Familiarity with Play Framework internals or Akka. Experience with Spark for pipeline-heavy work. Comfortable with OAuth-based authentication patterns. Nice to Have: Familiarity with React/TypeScript. For DevOps-leaning candidates: experience with Gradle, scripting, and CI/CD pipelines.

🏢 Summary: Hybrid Backend Developer role focused on modernizing and optimizing backend services, upgrading core technologies, and improving authentication and data pipelines. The project involves Java/Scala development, Play Framework upgrades, Spark-based batch processing, and OAuth migration. B2B contract with fast recruitment process and onboarding in Sweden. 🗂️ Requirements: Hands-on experience with production Java services, Hands-on experience with production Scala services, Familiarity with Play Framework internals, Experience with Spark for pipeline-heavy work, Experience with OAuth-based authentication patterns, Fluent English for project communication 📃 Skills: Java, Scala, Play, Spark, OAuth, JDK, GenAI, Gradle, CI/CD, React, TypeScript 🏢 Description: 🌍 Work mode: hybrid –  3 days from the Warsaw office. 🔍 Onboarding : 2 weeks in Malmo, Sweden. ⏰ Start : 1 week notice period, August 3rd at the latest. 📝 Contract : B2B > up 195 zl/h. ⚙️ Recruitment process : 1 meeting with the client. ⏳ Duration : > 3 months contracts + extensions. 📕Project language : English. 💼 Industry : Technology. 💻 Workload : Full time (40 hours per week). Summary: The Backend Developer role is aimed at enhancing and modernizing backend services and pipelines within the organization. This position primarily focuses on improving system performance, ensuring robust authentication mechanisms, and implementing automation to streamline processes. Main Responsibilities: Modernise backend services and pipelines by upgrading to the latest JDK, Scala 3.x, and Play Framework 3.x. Apply GenAI tooling to automate code transformations, dependency resolution, and compatibility fixes, producing reusable tools and documentation. Migrate authentication frameworks from legacy APIs to OAuth-based solutions across various backend services. Replace multiple data stores with a single versioned table, creating Spark/Java batch pipelines for backfill/migration and extending Scala/Play backends. Key Requirements: Hands-on experience with production Java/Scala services . Familiarity with Play Framework internals. Experience with Spark for pipeline-heavy work. Comfortable with OAuth-based authentication patterns. Nice to Have: Familiarity with React/TypeScript. For DevOps-leaning candidates: experience with Gradle, scripting, and CI/CD pipelines. Other Details Tools/Methodologies: Java, Scala, Play Framework, Spark, OAuth.

🏢 Summary: Backend Developer role focused on modernizing and optimizing backend services and data pipelines, including technology upgrades, authentication migration, and automation initiatives. The position involves working with Java/Scala ecosystems, Spark pipelines, and OAuth-based security in a hybrid model with onboarding in Sweden. B2B contract with competitive hourly rate and English as the project language. 🗂️ Requirements: Hands-on experience with production Java services, Hands-on experience with production Scala services, Familiarity with Play Framework internals, Experience with Spark for data pipelines, Experience with OAuth-based authentication patterns, Availability for hybrid work (3 days/week in Warsaw or Cracow), Availability for 2-week onboarding in Malmo, Sweden, Fluent English 📃 Skills: Java, Scala, Play, Spark, OAuth, Gradle, CI/CD, React, TypeScript 🏢 Description: 🌍 Work mode: hybrid –  3 days from the Warsaw OR Cracow office. ⏳ Duration : > 3 months contracts . 🔍 Onboarding : 2 weeks in Malmo, Sweden. ⏰ Start : August 3rd at the latest. 📝 Contract : B2B > up 200 zl/h. ⚙️ Recruitment process : 2 meetings. 📕Project language : English. 💼 Industry : Technology. 💻 Workload : Full time (40 hours per week). Summary: The Backend Developer role is aimed at enhancing and modernizing backend services and pipelines within the organization. This position primarily focuses on improving system performance, ensuring robust authentication mechanisms, and implementing automation to streamline processes. Main Responsibilities: Modernise backend services and pipelines by upgrading to the latest JDK, Scala 3.x, and Play Framework 3.x. Apply GenAI tooling to automate code transformations, dependency resolution, and compatibility fixes, producing reusable tools and documentation. Migrate authentication frameworks from legacy APIs to OAuth-based solutions across various backend services. Replace multiple data stores with a single versioned table, creating Spark/Java batch pipelines for backfill/migration and extending Scala/Play backends. Key Requirements: Hands-on experience with production Java/Scala services . Familiarity with Play Framework internals. Experience with Spark for pipeline-heavy work. Comfortable with OAuth-based authentication patterns. Nice to Have: Familiarity with React/TypeScript. For DevOps-leaning candidates: experience with Gradle, scripting, and CI/CD pipelines. Other Details Tools/Methodologies: Java, Scala, Play Framework, Spark, OAuth.

🏢 Summary: Backend Developer role focused on modernizing and optimizing backend services and data pipelines, including migration to newer Java/Scala and Play Framework versions and implementation of OAuth-based authentication. The position involves automation with GenAI tools and Spark-based data migrations in a hybrid work model. B2B contract with onboarding in Sweden and full-time engagement in English. 🗂️ Requirements: Hands-on experience with production Java services, Hands-on experience with production Scala services, Experience with Play Framework internals, Experience with Spark for pipeline-heavy work, Experience with OAuth-based authentication patterns, Availability to work hybrid from Warsaw or Cracow office, Availability for 2-week onboarding in Malmo, Sweden, Fluency in English 📃 Skills: Java, Scala, Play, Spark, OAuth, JDK, GenAI, Gradle, CI/CD, React, TypeScript 🏢 Description: 🌍 Work mode: hybrid –  3 days from the Warsaw OR Cracow office. ⏳ Duration : > 3 months contracts . 🔍 Onboarding : 2 weeks in Malmo, Sweden. ⏰ Start : August 3rd at the latest. 📝 Contract : B2B > up 195 zl/h. ⚙️ Recruitment process : 2 meetings. 📕Project language : English. 💼 Industry : Technology. 💻 Workload : Full time (40 hours per week). Summary: The Backend Developer role is aimed at enhancing and modernizing backend services and pipelines within the organization. This position primarily focuses on improving system performance, ensuring robust authentication mechanisms, and implementing automation to streamline processes. Main Responsibilities: Modernise backend services and pipelines by upgrading to the latest JDK, Scala 3.x, and Play Framework 3.x. Apply GenAI tooling to automate code transformations, dependency resolution, and compatibility fixes, producing reusable tools and documentation. Migrate authentication frameworks from legacy APIs to OAuth-based solutions across various backend services. Replace multiple data stores with a single versioned table, creating Spark/Java batch pipelines for backfill/migration and extending Scala/Play backends. Key Requirements: Hands-on experience with production Java/Scala services . Familiarity with Play Framework internals. Experience with Spark for pipeline-heavy work. Comfortable with OAuth-based authentication patterns. Nice to Have: Familiarity with React/TypeScript. For DevOps-leaning candidates: experience with Gradle, scripting, and CI/CD pipelines. Other Details: Tools/Methodologies: Java, Scala, Play Framework, Spark, OAuth.

🏢 Summary: Senior Test Automation Engineer role focused on backend/API automation (70%) and web/mobile frontend testing (30%), with responsibility for designing scalable test frameworks and embedding quality gates in CI/CD pipelines. The position involves performance testing, integration and E2E validation, and close collaboration with development teams. The engineer will also lead code reviews, mentor others, and drive best practices across the SDLC. 🗂️ Requirements: 5+ years of commercial experience in test automation, Proficiency in Java and/or JavaScript, Strong knowledge of OOP, SOLID and clean code principles, Advanced Git workflow and code review experience, Expertise in REST Assured and Postman, Experience with Selenium or Selenide, Cypress, TestNG, JUnit, Cucumber, Experience with Appium and XCUITest, Experience integrating automated tests into CI/CD pipelines, Hands-on experience with Gatling, Comprehensive understanding of SDLC, English proficiency at B2/C1 level, Availability for hybrid work with regular on-site presence in Warsaw 📃 Skills: Java, JavaScript, REST, RESTAssured, Postman, Selenium, Selenide, Cypress, TestNG, JUnit, Cucumber, Appium, XCUITest, Gatling, JMeter, Git, CI/CD, Jira, Xray, JSON, OOP, SOLID, KISS 🏢 Description: co.brick talents — powered by AI, powered by people. We are seeking a technically mature Senior Test Automation Engineer to drive the quality assurance lifecycle, focusing heavily on backend/API validation (70%) while maintaining robust web and mobile frontend coverage (30%). In this role, you will go beyond executing standard test plans—you will architect and maintain scalable automated testing frameworks, integrate new performance or tooling proof-of-concepts, and actively mentor mid-level engineers. You will collaborate closely with cross-functional development squads to identify critical system paths, introduce stable quality gates, and champion software engineering best practices. Details Seniority: Senior (5+ years of commercial experience). Allocation: Full-time (1 FTE). Rate: Up to 120 PLN/h. Start Date: ASAP. Languages: English at a B2/C1 level (clear, effective communication across teams). Work Model & Location: Hybrid. Required on-site presence at the client's office in Warsaw, Poland for 1 day every two weeks (specifically Thursdays) , plus an additional 2–3 days on-site every 2–3 months for strategic planning sessions. Responsibilities Test Architecture & Strategy: Plan, design, and execute integration, system, usability, and End-to-End (E2E) testing suites. Support business units during User Acceptance Testing (UAT) phases. Backend & API Automation ($70\%$ Focus): Build and scale automated API test coverage, verifying data contracts, JSON payloads, and response structures. Frontend & Mobile Automation ($30\%$ Focus): Maintain and extend cross-browser web automation and native mobile testing workflows. CI/CD & Pipeline Quality Gates: Embed automated tests seamlessly into distribution pipelines, ensuring high availability, continuous validation, and rapid feedback loops. Performance Testing: Conduct load, stress, and scalability profiling to identify system bottlenecks. Leadership & Code Quality: Lead technical code reviews, promote engineering design patterns, run exploratory PoCs for fresh technologies, and mentor team members to foster a proactive engineering culture. Requirements Core Development Baseline Proficiency in Java and/or JavaScript (JS) . Strong understanding of clean code principles, OOP, SOLID , and KISS . Advanced Git workflow mastery and experience handling code reviews. API Testing & Automation Expert knowledge of REST Assured and Postman . Deep understanding of API response schemas and integration contract validation. Automation Frameworks & Ecosystem Web Front: Selenium / Selenide (primary web standard), Cypress , TestNG , JUnit , and Cucumber . Mobile: Appium and XCUITest . Test Management: Jira (highly preferred with Xray integration). Comprehensive expertise spanning the entire Software Development Life Cycle (SDLC). Performance & Pipelines Gatling (the primary performance testing tool within the organization). Expert control over CI/CD process chains and runner integration. Nice to have: JMeter . Soft Skills & Core Competencies Strong mentorship attitude with a natural drive to support and upscale peer engineers. Proactive mindset with excellent planning, prioritization, and analytical skills. High adaptability—comfortable managing context-switching in a dynamic environment.

🏢 Summary: Senior Backend Engineer role for a 3-month modernization project focused on upgrading Java and Scala backend services, migrating authentication systems to OAuth, and building large-scale Spark data pipelines. The position requires hybrid work in Warsaw or Kraków, with a fully covered onboarding period in Sweden. 🗂️ Requirements: 5+ years commercial backend experience, Strong production experience with Java, Strong production experience with Scala, Experience with Play Framework or Akka/Pekko, Hands-on experience with Spark, Experience with OAuth authentication, Professional English proficiency, Availability for 2-week onboarding in Sweden, Hybrid availability in Warsaw or Kraków office 3 days/week 📃 Skills: Java, Scala, Play, Akka, Pekko, Spark, OAuth, React, TypeScript, CI/CD, Gradle 🏢 Description: co.brick talents — powered by AI, powered by people. Senior Backend Engineer (Scala / Java) – 3-Month Project Salary: Up to 175 PLN/h net + VAT (B2B Contract) Location: Hybrid – Warsaw or Kraków ( strictly 3 days/week from the office – non-negotiable) Onboarding: 2 weeks on-site in Malmö, Sweden (fully covered) Project Duration: 3 months Start Date: ASAP/Beginning of August at the ABSOLUTE LATEST About the Client & Project On behalf of our client, an innovative company from the technology sector, we are looking for a Strong Senior Backend Developer to join a short-term, high-impact project. The main goal is to modernize and optimize core backend services, streamline data pipelines, and enhance system security. This is a highly autonomous role requiring a seasoned engineer who can jump straight into a complex ecosystem, utilize automation tools for framework upgrades, and handle heavy data migration tasks. Key Responsibilities Modernize and refactor backend services by upgrading legacy Java and Scala-based frameworks. Leverage automation and modern tooling to expedite code transformations, dependency resolution, and compatibility fixes. Migrate legacy authentication mechanisms across various services to secure, OAuth-based solutions. Consolidate multiple data stores into unified, versioned tables by designing and executing heavy Spark/Java batch pipelines. Requirements Minimum of 5 years of commercial backend experience (7+ years is highly preferred). Deep production experience with Java and Scala . Strong familiarity with Play Framework OR Akka (experience with Akka/Pekko is highly acceptable if you are ready to work with Play environments). Hands-on experience with Spark for complex, heavy data pipeline processing. Solid understanding and practical experience with OAuth authentication patterns. Excellent communication skills with Full Professional English (the project language is 100% English). Full availability for a 2-week onboarding trip to Sweden at the very start of the contract. Nice to Have Basic understanding or exposure to frontend technologies (React / TypeScript). DevOps mindset: familiarity with CI/CD pipelines, Gradle, and scripting. What We Offer A transparent, quick 2-stage recruitment process. An attractive hourly rate with seamless B2B invoicing. An opportunity to work on a high-exposure architectural modernization project for an international client.

🏢 Summary: Senior Backend Engineer role for a 3-month modernization project focused on upgrading Java and Scala backend services, migrating authentication systems to OAuth, and building heavy Spark-based data pipelines. The position requires hybrid work in Warsaw or Kraków with an initial onboarding in Sweden. 🗂️ Requirements: 5+ years commercial backend experience, Production experience with Java, Production experience with Scala, Experience with Play Framework or Akka/Pekko, Hands-on Spark experience, Experience with OAuth authentication, Professional English proficiency, Availability for 2-week onboarding in Sweden, Hybrid availability 3 days/week in Warsaw or Kraków office 📃 Skills: Java, Scala, Play, Akka, Pekko, Spark, OAuth, React, TypeScript, CI/CD, Gradle 🏢 Description: co.brick talents — powered by AI, powered by people. Senior Backend Engineer (Scala / Java) – 3-Month Project Salary: Up to 175 PLN/h net + VAT (B2B Contract) Location: Hybrid – Warsaw or Kraków ( strictly 3 days/week from the office – non-negotiable) Onboarding: 2 weeks on-site in Malmö, Sweden (fully covered) Project Duration: 3 months Start Date: ASAP/Beginning of August at the ABSOLUTE LATEST About the Client & Project On behalf of our client, an innovative company from the technology sector, we are looking for a Strong Senior Backend Developer to join a short-term, high-impact project. The main goal is to modernize and optimize core backend services, streamline data pipelines, and enhance system security. This is a highly autonomous role requiring a seasoned engineer who can jump straight into a complex ecosystem, utilize automation tools for framework upgrades, and handle heavy data migration tasks. Key Responsibilities Modernize and refactor backend services by upgrading legacy Java and Scala-based frameworks. Leverage automation and modern tooling to expedite code transformations, dependency resolution, and compatibility fixes. Migrate legacy authentication mechanisms across various services to secure, OAuth-based solutions. Consolidate multiple data stores into unified, versioned tables by designing and executing heavy Spark/Java batch pipelines. Requirements Minimum of 5 years of commercial backend experience (7+ years is highly preferred). Deep production experience with Java and Scala . Strong familiarity with Play Framework OR Akka (experience with Akka/Pekko is highly acceptable if you are ready to work with Play environments). Hands-on experience with Spark for complex, heavy data pipeline processing. Solid understanding and practical experience with OAuth authentication patterns. Excellent communication skills with Full Professional English (the project language is 100% English). Full availability for a 2-week onboarding trip to Sweden at the very start of the contract. Nice to Have Basic understanding or exposure to frontend technologies (React / TypeScript). DevOps mindset: familiarity with CI/CD pipelines, Gradle, and scripting. What We Offer A transparent, quick 2-stage recruitment process. An attractive hourly rate with seamless B2B invoicing. An opportunity to work on a high-exposure architectural modernization project for an international client.

🏢 Summary: Senior QA Automation Engineer role focused on designing and scaling automated test systems for APIs and end-to-end flows within a hybrid work model. The position emphasizes building and maintaining robust test frameworks in Java and TypeScript, validating API contracts, and integrating automated tests into CI/CD pipelines. You will drive quality improvements through risk-based testing, defect analysis, and close collaboration in Agile teams. 🗂️ Requirements: 5+ years of experience in automated testing (API and/or E2E), Very strong knowledge of Java for backend automation, Strong TypeScript/JavaScript skills, Experience with API testing (REST) using Rest Assured and/or Gatling, Proven experience with E2E automation using Playwright, Working knowledge of SQL for data validation, Experience with Git (PRs and code review), Practical experience with CI/CD tools (Jenkins, GitLab, GitHub Actions, or Azure DevOps), Experience with Maven or Gradle, Ability to work in Agile/Scrum environments, Good command of Polish, Communicative English, Existing legal right to work in Europe 📃 Skills: Java, TypeScript, JavaScript, REST, SOAP, Playwright, RestAssured, Gatling, SQL, Git, Jenkins, GitLab, GitHub, AzureDevOps, Maven, Gradle, Swagger 🏢 Description: Ignite quality at scale—design, automate, and evolve the test systems that keep modern platforms moving. Warsaw-based opportunity with hybrid work model. (4 remote days/week) As a Senior QA Automation Engineer , you will be working for our client, building reliable software through end-to-end test coverage—spanning REST/SOAP APIs, E2E flows, contract validation, and CI/CD automation. You’ll strengthen test frameworks, improve quality metrics, and help deliver stable releases faster through proactive defect diagnosis and clear, actionable reporting. Your main responsibilities: Design, implement, and maintain automated tests for APIs (REST/SOAP) and E2E (Playwright + TypeScript). Create test scenarios and backend + end-to-end flow test cases using a risk-based approach. Validate API contracts, including error scenarios, to ensure correct behavior across integrations. Develop and refactor test frameworks in Java and TypeScript, keeping them maintainable and scalable. Analyze test results across functional, integration, and performance checks, and drive improvements based on findings. Diagnose defects by investigating logs, requests, and data, then document findings with full reproduction steps (including logs and recordings when needed). Maintain and grow test execution in CI/CD pipelines and perform code reviews for test assets in collaboration with developers. Support requirements analysis, refinement, and sprint planning, while contributing to the overall test strategy and quality metrics. You're ideal for this role if you have: 5+ years of experience in automated testing (API and/or E2E). Very strong knowledge of Java for backend automation. Strong TypeScript/JavaScript skills. Experience with API testing (REST), using tools such as Rest Assured and/or Gatling. Proven experience with E2E automation using Playwright. Working knowledge of SQL for data validation. Experience with Git (PRs & code review). Practical experience with CI/CD (Jenkins, GitLab, GitHub Actions, or Azure DevOps) plus Maven or Gradle. Ability to work effectively in Agile/Scrum environments. It is a strong plus if you have: (optional) Experience with performance testing (e.g., Gatling). Knowledge of microservices architecture. Experience with tools like Swagger and API mocking. Language Required for the role : Polish — good command Communicative English — required Eligibility for the role : Only candidates with an existing legal right to work in Europe will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.

🏢 Summary: Senior QA Automation Engineer role focused on designing and maintaining automated API and E2E test frameworks, improving CI/CD pipelines, and ensuring high-quality releases through comprehensive test coverage. The position involves working with REST/SOAP services, Playwright, Java, and TypeScript in a hybrid model (4 days remote per week). You will contribute to test strategy, defect analysis, and quality metrics within an Agile environment. 🗂️ Requirements: 5+ years of experience in automated testing (API and/or E2E), Very strong knowledge of Java for backend automation, Strong TypeScript/JavaScript skills, Experience with REST API testing using Rest Assured and/or Gatling, Proven experience with Playwright for E2E automation, Working knowledge of SQL for data validation, Experience with Git (PRs and code reviews), Practical experience with CI/CD tools (Jenkins, GitLab, GitHub Actions, or Azure DevOps), Experience with Maven or Gradle, Ability to work in Agile/Scrum environments, Good command of Polish, Communicative English, Legal right to work in Europe 📃 Skills: Java, TypeScript, JavaScript, REST, SOAP, Playwright, RestAssured, Gatling, SQL, Git, Jenkins, GitLab, GitHub, AzureDevOps, Maven, Gradle, CI/CD, Swagger 🏢 Description: Ignite quality at scale—design, automate, and evolve the test systems that keep modern platforms moving. Warsaw-based opportunity with hybrid work model. (4 remote days/week) As a Senior QA Automation Engineer , you will be working for our client, building reliable software through end-to-end test coverage—spanning REST/SOAP APIs, E2E flows, contract validation, and CI/CD automation. You’ll strengthen test frameworks, improve quality metrics, and help deliver stable releases faster through proactive defect diagnosis and clear, actionable reporting. Your main responsibilities: Design, implement, and maintain automated tests for APIs (REST/SOAP) and E2E (Playwright + TypeScript). Create test scenarios and backend + end-to-end flow test cases using a risk-based approach. Validate API contracts, including error scenarios, to ensure correct behavior across integrations. Develop and refactor test frameworks in Java and TypeScript, keeping them maintainable and scalable. Analyze test results across functional, integration, and performance checks, and drive improvements based on findings. Diagnose defects by investigating logs, requests, and data, then document findings with full reproduction steps (including logs and recordings when needed). Maintain and grow test execution in CI/CD pipelines and perform code reviews for test assets in collaboration with developers. Support requirements analysis, refinement, and sprint planning, while contributing to the overall test strategy and quality metrics. You're ideal for this role if you have: 5+ years of experience in automated testing (API and/or E2E). Very strong knowledge of Java for backend automation. Strong TypeScript/JavaScript skills. Experience with API testing (REST), using tools such as Rest Assured and/or Gatling. Proven experience with E2E automation using Playwright. Working knowledge of SQL for data validation. Experience with Git (PRs & code review). Practical experience with CI/CD (Jenkins, GitLab, GitHub Actions, or Azure DevOps) plus Maven or Gradle. Ability to work effectively in Agile/Scrum environments. It is a strong plus if you have: (optional) Experience with performance testing (e.g., Gatling). Knowledge of microservices architecture. Experience with tools like Swagger and API mocking. Language Required for the role : Polish — good command Communicative English — required Eligibility for the role : Only candidates with an existing legal right to work in Europe will be considered for this role. #MAKEYourCareerBETTER Interested? Apply now and include your CV (preferably in English) along with a statement confirming your consent to the processing and storage of your personal data.