SDET (Software Development Engineer in Test) – Java & Selenium – Hybrid (2/3 Days Onsite in Warsaw)

🏢 Summary: SDET role focused on designing and developing scalable test automation frameworks using Java and Selenium in a hybrid model (2 days onsite in Kraków). The position involves integrating automated tests into CI/CD pipelines and ensuring software quality through API, integration, and end-to-end testing in an Agile environment. The role emphasizes strong development skills and close collaboration with engineering teams. 🗂️ Requirements: Strong programming experience in Java, Hands-on experience with Selenium WebDriver, Experience designing and implementing automation frameworks, Experience with TestNG or JUnit, Experience with CI/CD tools, Experience testing web applications and APIs, Understanding of Agile/Scrum, Ability to perform API, integration, and end-to-end testing, Strong debugging skills, English proficiency 📃 Skills: Java, Selenium, WebDriver, TestNG, JUnit, Jenkins, GitLab, CI/CD, REST, Cucumber, Docker, AWS, GCP, Azure, API 🏢 Description: We are seeking a skilled SDET (Software Development Engineer in Test) with strong experience in Java and Selenium to join our engineering team in Kraków. This role requires a hybrid presence with two days per week onsite in the Kraków office. The ideal candidate will have a strong development mindset and experience building scalable test automation frameworks to ensure high-quality software delivery. Key Responsibilities Design, develop, and maintain test automation frameworks using Java and Selenium Write clean, maintainable, and scalable automated test code Integrate automated tests into CI/CD pipelines Collaborate closely with developers, QA engineers, and product teams to ensure quality throughout the development lifecycle Perform API, integration, and end-to-end testing Identify, document, and track defects using issue tracking tools Participate in Agile ceremonies including sprint planning, reviews, and retrospectives Contribute to continuous improvement of testing strategies, tooling, and processes Required Skills & Experience Strong programming experience in Java Hands-on experience with Selenium WebDriver Experience designing and implementing automation frameworks Experience with testing frameworks such as TestNG or JUnit Familiarity with CI/CD tools (e.g., Jenkins, GitLab CI, or similar) Experience testing web applications and APIs Understanding of Agile/Scrum development environments Strong problem-solving and debugging skills Good communication skills in English Nice to Have Experience with REST API testing (e.g., REST Assured) Knowledge of BDD frameworks such as Cucumber Familiarity with Docker or containerized environments Experience with cloud platforms (AWS, GCP, or Azure) Work Model Hybrid: 2/3 days onsite in Kraków , remaining days remote What We Offer Competitive salary or contract rate Flexible hybrid working model Opportunity to work with modern automation technologies Collaborative, international engineering environment

🏢 Summary: B2B hybrid contract for an experienced SDET to design and maintain automated test frameworks for a major Swiss financial client, with strong focus on API and UI automation in Java. The role involves building BDD frameworks, implementing CI/CD pipelines, and performing database testing within enterprise systems. 🗂️ Requirements: Minimum 6 years of pure test automation experience, At least 18 months of API automation using RestAssured with Java, At least 4 years of UI automation using Selenium with Java, At least 2 years of BDD automation using Cucumber, At least 2 years of database testing experience, Experience building BDD automation frameworks with Java and Selenium, Experience with CI/CD pipeline implementation, Strong SQL knowledge, Hands-on experience with Oracle, Postgres or MongoDB, Experience with TestNG or JUnit, Experience with Maven or Ant, Experience with Git, Experience with Jira or Rally, Strong Java proficiency (minimum 7/10), Recent continuous automation experience without long breaks 📃 Skills: Java, Selenium, RestAssured, Cucumber, BDD, SQL, Oracle, Postgres, MongoDB, TestNG, JUnit, Maven, Ant, Git, Jira, Rally, CI/CD, SpringBoot, JavaScript, Playwright 🏢 Description: Software Development Engineer in Test We are looking for SDET Engineer on behalf of our client to join to the leader from the largest Swiss financial holding company. Contract: B2B Work Mode: Hybrid 2/3 days from Krakow office Mandatory SDET Skills – Minimum 6 Years of relevant experience (6 years of total IT experience should not be sent to us unless all 6 year is automation completely) as per mandatory skills: Rest Assured with Java and Selenium with Java BDD Cucumber CI/CD Pipeline implementations SQL/DB Testing Experienced in building a BDD test automation framework using Java and Selenium. Well versed with Automated API testing using Rest Assured with Java Experience using TestNG, Junit in Test automation frameworks. Experience in creating Manual and Automated tests and executing them as per the requirement Well versed with analyzing application logs and debugging the test case failure. Experience in database testing and should be well versed with SQL. Hands-on experience in using databases e.g. Oracle, Postgres, MongoDB. Experience using GIT or similar tools. Well versed with Build management tools like Maven or Ant. Experience in using Requirement and Test Management tools like Rally, Jira Bonus skills: Knowledge of Spring Boot, JavaScript, and hands-on experience with Playwright. Handson in API Automation by using Rest Assured with Java for at least 18 months Handson in UI Automation by using Selenium with Java for at least 4 years Handson in Automation by using BDD Cucumber for at least 2 Years DB Testing for at least 2 years Comfort level in using Java at least 7 out of 10 Handson Automation experience should be latest and not towards early stage of career – without breaks. 📩 If you’re interested and meet the qualifications, please send your CV to Alina Pchelnikova at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Senior SDET role focused on building and maintaining scalable UI, API, and backend automation frameworks for enterprise applications. The position involves ensuring software quality through end-to-end, integration, and regression testing integrated into CI/CD pipelines. The role requires close collaboration with development teams in an Agile environment to drive automation excellence and continuous testing. 🗂️ Requirements: 3+ years experience in software testing and automation, Strong expertise in Java, Strong expertise in Selenium, Strong expertise in Cucumber, Strong expertise in SerenityBDD, Backend automation experience with Java and SpringBoot, Experience in API automation testing using Java, Strong SQL skills, Experience with MySQL, Experience with REST APIs, Experience integrating tests into CI/CD pipelines, Experience with Git, Understanding of Agile/Scrum methodologies 📃 Skills: Java, Selenium, Cucumber, SerenityBDD, SpringBoot, SQL, MySQL, REST, CI/CD, Git, Agile, Scrum 🏢 Description: 🚀 SDET (UI, API & Backend Automation) 📍 Hybrid | 1 day per week in the office Gdańsk or Warsaw Are you passionate about automation, software quality, and building scalable testing frameworks? We're looking for a Senior SDET who thrives on delivering high-quality software through innovative testing strategies and automation excellence. You'll play a key role in ensuring the reliability, performance, and quality of enterprise applications while collaborating closely with developers, product teams, and QA engineers. 💡 Your Mission 🧪 Test Automation Design, develop, and maintain robust automated test frameworks. Create end-to-end, regression, integration, and functional test suites. Improve test coverage and automation efficiency across the platform. Promote shift-left testing practices within development teams. 🖥️ UI Automation Develop and maintain automated UI test suites using: Selenium Cucumber Serenity BDD Create reusable automation components and frameworks. Ensure application quality across multiple browsers and devices. 🔌 API Automation Design and execute API automation tests using Java. Validate REST APIs, microservices, and backend integrations. Perform functional, integration, and regression testing. ☕ Backend Automation Develop backend automation solutions using Java and Spring Boot. Validate business logic, workflows, and service integrations. Support continuous testing initiatives across distributed systems. 🗄️ Database Testing Validate application data and business rules using MySQL. Create and execute SQL queries for backend verification. Ensure data integrity and consistency across systems. ⚙️ CI/CD & Quality Engineering Integrate automated testing into CI/CD pipelines. Collaborate with DevOps and development teams to improve release quality. Analyze test results and drive continuous improvement initiatives. 🤝 Collaboration Work closely with Developers, Product Owners, Business Analysts, and QA teams. Participate in Agile/Scrum ceremonies. Contribute to quality strategies, standards, and best practices. 🎯 Must-Have Skills ✔️ 3+ years of experience in software testing and automation ✔️ Strong expertise in: Java Selenium Cucumber Serenity BDD ✔️ Backend automation experience with: Java Spring Boot ✔️ API automation testing using Java ✔️ Strong SQL and MySQL database testing skills ✔️ Experience with: REST APIs CI/CD pipelines Git ✔️ Understanding of Agile/Scrum methodologies ⭐ Nice to Have Experience with Jenkins, GitLab CI, or Azure DevOps Experience with performance testing tools Knowledge of Docker and Kubernetes Exposure to cloud platforms (AWS, Azure, GCP) Fintech or payment industry experience Open-source contributions or technical blogging 🎁 What You'll Get ✨ Opportunity to work on enterprise-scale applications ✨ Modern testing tools and automation frameworks ✨ Hybrid work model (Gdańsk or Warsaw) ✨ Collaborative engineering culture ✨ Career growth and continuous learning opportunities ✨ Influence on automation strategy and quality standards 🚀 Ready to build world-class automation solutions and help deliver exceptional software quality? Join us and become part of a team where quality is built into every stage of development.

🏢 Summary: Senior SDET / Java QA Automation Engineer role focused on building and maintaining scalable test automation frameworks for UI, API, and database testing in a hybrid model. The position involves hands-on automation using Java-based tools, integrating tests into CI/CD pipelines, and ensuring high software quality through robust engineering practices. 🗂️ Requirements: 6+ years of QA Automation / SDET experience, Strong hands-on experience with Java test automation, Experience with Selenium using Java, Experience with Rest Assured using Java, Experience with BDD Cucumber, Experience implementing and maintaining CI/CD pipelines, Strong knowledge of SQL and database testing, Experience with TestNG and/or JUnit, Hands-on experience with Git, Hands-on experience with Maven or Ant, Experience with Oracle, PostgreSQL, or MongoDB, Familiarity with Jira or Rally 📃 Skills: Java, Selenium, RestAssured, Cucumber, SQL, TestNG, JUnit, Git, Maven, Ant, Oracle, PostgreSQL, MongoDB, Jira, Rally, CICD 🏢 Description: 📍 Location: Kraków, Poland 🏢 Work Model: Hybrid (3 days per week in the office) We are looking for an experienced Senior SDET / Java QA Automation Engineer to join a global team focused on delivering high-quality software through robust test automation practices. This role is ideal for a hands-on automation professional with strong expertise in Java, Selenium, Rest Assured, and BDD Cucumber , who enjoys building scalable automation frameworks and contributing to quality engineering initiatives. Key Responsibilities Design, develop, and maintain automated test frameworks using Java and Selenium Build and execute automated API tests using Rest Assured Create and maintain UI, API, and Database test suites Integrate automation solutions into CI/CD pipelines Analyze test results, application logs, and troubleshoot failures Perform database validation and data integrity testing using SQL Collaborate closely with developers, business analysts, and QA teams to ensure product quality Required Skills & Experience ✔ 6 years+ of dedicated QA Automation / SDET experience ✔ Strong hands-on experience with Java-based test automation ✔ Rest Assured with Java ✔ Selenium with Java ✔ BDD Cucumber ✔ Experience implementing and maintaining CI/CD pipelines ✔ Strong knowledge of SQL and Database Testing ✔ Experience with TestNG and/or JUnit ✔ Hands-on experience with Git , Maven , or Ant ✔ Experience working with databases such as Oracle, PostgreSQL, and MongoDB ✔ Familiarity with test and requirement management tools such as Jira and Rally Nice to Have ⭐ Spring Boot ⭐ JavaScript ⭐ Playwright ⭐ Experience building automation frameworks from scratch

🏢 Summary: Full-time Senior SDET role focused on designing and scaling automation frameworks from scratch using C# and Playwright. The position emphasizes API, UI, and integration test automation, CI/CD integration, and increasing automation coverage across complex utility software systems. The engineer will drive automation strategy, embed tests into pipelines, and ensure high quality through robust nonfunctional testing and metrics. 🗂️ Requirements: 7+ years in software testing with focus on automation, Advanced C# programming skills, Proven experience with Playwright, Experience building automation frameworks from scratch, Hands-on API testing using code (REST/GraphQL), Experience integrating automated tests into CI/CD pipelines, Experience with Jenkins or GitLab CI/CD, Proficiency in Linux and Windows environments, Experience with Docker and cloud environments (AWS/Azure/GCP), Strong debugging and root cause analysis skills, Bachelor’s degree in CS/IT or equivalent experience 📃 Skills: C#, Playwright, Selenium, REST, GraphQL, API, CI/CD, Jenkins, GitLab, Linux, Windows, Docker, AWS, Azure, GCP, Automation, Performance, Security 🏢 Description: Svitla Systems Inc. is looking for a Senior Software Development Engineer in Test (SDET) for a full-time position (40 hours per week) in Europe. Our client is a reputable leader in creating cutting-edge utility software and technology, providing solutions that encompass consumer billing and finance as well as IT, GIS, advanced analytics, cybersecurity, and operations. Requirements: 7+ years in software testing with a strong emphasis on automation engineering. Advanced C# skills required; experience writing test code, libraries, and utilities. Proven Playwright expertise; experience with Selenium or similar tools is a plus. Demonstrated ability to build and scale automation frameworks from the ground up. Hands-on API testing experience using code (REST/GraphQL); familiarity with contract testing. Deep experience integrating tests into CI/CD (Jenkins, GitLab CI/CD) and configuring pipelines for test execution. Comfortable in Linux and Windows environments. Familiar with containerization and cloud test environments (Docker, AWS/Azure/GCP). Strong debugging skills: log analysis, root cause, and flaky test mitigation. Excellent communication and ability to present technical trade-offs and metrics to leadership. Bachelor’s degree in CS/IT or equivalent experience. Responsibilities: Framework Architecture: Design, implement, and evolve automation frameworks from scratch using C# and Playwright; ensure maintainability, modularity, and reusability. Test Engineering: Develop unit, integration, API, and UI tests in code; create test harnesses and mocks; ensure tests are deterministic and fast. CI/CD Integration: Embed automated tests into CI/CD pipelines (Jenkins, GitLab CI/CD); implement quality gates, parallel execution, and test reporting. Automation Strategy: Drive automation roadmap to increase coverage from current ~10% to target levels; prioritize test types by risk and ROI. Performance and Nonfunctional Testing: Define and automate performance, reliability, and security checks where applicable. Metrics and Reporting: Define automation KPIs (coverage, flakiness, execution time, escaped defects); present metrics to engineering leadership. Technical Mentorship: Mentor engineers and QA on test-driven development, test design patterns, and code review for tests. Cross-Functional Collaboration: Work closely with developers, architects, and DevOps to shift-left testing and reduce manual handoffs. We offer: US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Full-time Senior SDET role focused on designing and scaling automation frameworks from scratch using C# and Playwright. The position drives test architecture, CI/CD integration, API and UI automation, and nonfunctional testing to significantly increase automated coverage. It involves close collaboration with engineering and DevOps to implement robust, scalable, and metrics-driven quality practices. 🗂️ Requirements: 7+ years of software testing experience with strong automation focus, Advanced C# programming skills, Proven experience with Playwright, Experience building automation frameworks from scratch, Hands-on API testing using REST or GraphQL, Experience integrating automated tests into CI/CD pipelines, Experience with Jenkins or GitLab CI/CD, Proficiency in Linux and Windows environments, Experience with Docker and at least one cloud platform (AWS, Azure, or GCP), Strong debugging and root cause analysis skills, Bachelor’s degree in Computer Science, IT, or equivalent experience 📃 Skills: C#, Playwright, Selenium, REST, GraphQL, Jenkins, GitLab, CI/CD, Linux, Windows, Docker, AWS, Azure, GCP 🏢 Description: Svitla Systems Inc. is looking for a Senior Software Development Engineer in Test (SDET) for a full-time position (40 hours per week) in Europe. Our client is a reputable leader in creating cutting-edge utility software and technology, providing solutions that encompass consumer billing and finance as well as IT, GIS, advanced analytics, cybersecurity, and operations. Requirements: 7+ years in software testing with a strong emphasis on automation engineering. Advanced C# skills required; experience writing test code, libraries, and utilities. Proven Playwright expertise; experience with Selenium or similar tools is a plus. Demonstrated ability to build and scale automation frameworks from the ground up. Hands-on API testing experience using code (REST/GraphQL); familiarity with contract testing. Deep experience integrating tests into CI/CD (Jenkins, GitLab CI/CD) and configuring pipelines for test execution. Comfortable in Linux and Windows environments. Familiar with containerization and cloud test environments (Docker, AWS/Azure/GCP). Strong debugging skills: log analysis, root cause, and flaky test mitigation. Excellent communication and ability to present technical trade-offs and metrics to leadership. Bachelor’s degree in CS/IT or equivalent experience. Responsibilities: Framework Architecture: Design, implement, and evolve automation frameworks from scratch using C# and Playwright; ensure maintainability, modularity, and reusability. Test Engineering: Develop unit, integration, API, and UI tests in code; create test harnesses and mocks; ensure tests are deterministic and fast. CI/CD Integration: Embed automated tests into CI/CD pipelines (Jenkins, GitLab CI/CD); implement quality gates, parallel execution, and test reporting. Automation Strategy: Drive automation roadmap to increase coverage from current ~10% to target levels; prioritize test types by risk and ROI. Performance and Nonfunctional Testing: Define and automate performance, reliability, and security checks where applicable. Metrics and Reporting: Define automation KPIs (coverage, flakiness, execution time, escaped defects); present metrics to engineering leadership. Technical Mentorship: Mentor engineers and QA on test-driven development, test design patterns, and code review for tests. Cross-Functional Collaboration: Work closely with developers, architects, and DevOps to shift-left testing and reduce manual handoffs. We offer: US and EU projects based on advanced technologies. Competitive compensation based on skills and experience. Regular performance appraisals to support your growth. Flexibility in workspace, either remote or our welcoming office. Bonuses for article writing, public talks, and other activities. Generous time off, including vacation, national holidays, sick leaves, and family days. Personalized learning programs tailored to your interests and skill development. Free tech webinars and meetups organized by Svitla. Regular corporate online activities. Awesome team and a friendly, supportive community!

🏢 Summary: Long-term engagement for a senior SDET / Automation Engineer responsible for designing and maintaining automated test frameworks in a Java-based environment. The role focuses on Selenium WebDriver automation, BDD frameworks, API and database testing, and CI/CD integration. Position requires strong hands-on technical expertise and onsite presence in Krakow three days per week. 🗂️ Requirements: 7+ years of automation experience, Strong hands-on experience with Selenium WebDriver using Java, Experience with BDD frameworks: Cucumber, JUnit or TestNG, Experience building automation frameworks: Page Object Model, Data-Driven, Experience in functional testing and full test lifecycle, Strong knowledge of Core Java, Experience in API testing using Postman, Experience with build tools: Maven or Gradle, Experience with CI/CD integration using GitLab, Experience in database testing using SQL and Oracle, Strong debugging skills using logs, DB queries and file system, Availability to work onsite in Krakow 3 days per week 📃 Skills: Java, Selenium, WebDriver, Cucumber, JUnit, TestNG, SQL, Postman, Maven, Gradle, GitLab, Oracle, CICD, PageObjectModel, DataDriven, Automation, API, Database 🏢 Description: Dear Consultant, We are hiring an experienced SDET / Automation Engineer for a long-term engagement in Krakow. 🔹 Requirements 7+ years automation experience Strong hands-on experience with Selenium WebDriver (Java only) BDD frameworks: Cucumber, JUnit/TestNG Automation frameworks: Page Object Model / Data-Driven Functional testing & full test lifecycle Core Java, JUnit, SQL API testing (Postman) Build tools: Maven / Gradle CI/CD integration (GitLab) Database testing (SQL / Oracle) Strong debugging using logs, DB queries, file system 🔹 Nice to Have JMeter DevOps / Cloud exposure Regulatory compliance Agile / Scrum 📍 Krakow – 3 days onsite mandatory 📩 Send CV to marcillina.tietjen@dcvtechnologies.co.uk

🏢 Summary: The role involves defining and implementing a comprehensive testing strategy as an SDET within agile, customer-focused teams. You will build scalable automated testing systems, contribute high-quality reusable code, and ensure performance and security standards across distributed microservices. The position also includes shaping quality engineering practices and supporting continuous delivery processes. 🗂️ Requirements: Excellent Java programming skills, Experience with back-end and front-end test automation frameworks, Experience integrating automated tests into CI/CD pipelines, Knowledge of performance testing techniques, Knowledge of automated security testing, Understanding of BDD, Experience testing distributed microservices, Experience working in Agile teams, Knowledge of cloud infrastructure and configuration, Residence and work authorization in Poland, Availability to work from Warsaw office at least twice a month 📃 Skills: Java, BDD, CI/CD, Microservices, Automation, Performance, Security, Cloud, Agile, Distributed 🏢 Description: Join us as a SDET to help define and implement the testing strategy across our products. • Work in customer-focused agile squads and collaborate with product managers, designers, and engineers to define the next iteration • Work collaboratively across our missions to define and continually improve our testing strategy for new and existing products • Develop clean, elegant, and reusable code that is easy to maintain and extend • Build scalable automated testing systems that enable us to ship value to customers at pace • Support other engineers to test their software and act as a subject matter expert • Work with stakeholders across the business to shape the future of quality engineering and put long-term interests of our customers at the heart of key decisions • Drive the direction of our testing chapter to ensure it maintains the highest standards of technology and process What makes you a great fit • Excellent programming skills in Java • Hands-on experience with common back-end and front-end test automation frameworks, and integrating these into the continuous deployment pipeline • Knowledge of software performance and automated security testing techniques and tooling • Awareness of cloud infrastructure and configuration • A strong understanding of BehaviourDriven Development (BDD) • Experience delivering and testing distributed microservices as part of an agile team • You will be required to live and work from Polish territory and to work from our Warsaw office at least twice a month What awaits you at Avenga? Private medical care Cafeteria benefits program Private isurance

🏢 Summary: The offer is for a Software Development Engineer in Test (SDET) responsible for defining and implementing testing strategy across products within agile teams. The role focuses on building scalable automated testing systems, improving quality engineering practices, and supporting teams with expertise in test automation. You will work on distributed microservices and integrate automated tests into continuous deployment pipelines. 🗂️ Requirements: Proficient programming skills in JavaScript, Experience with ReactNative, Hands-on experience with front-end and back-end test automation frameworks, Experience integrating automated tests into CI/CD pipelines, Knowledge of performance testing and automated security testing, Understanding of cloud infrastructure and configuration, Strong knowledge of BDD, Experience testing distributed microservices in agile teams, Ability to work from Poland and attend Warsaw office twice a month 📃 Skills: JavaScript, ReactNative, CI/CD, BDD, Microservices, Cloud, Automation, Security, Performance, Agile 🏢 Description: Join us as a SDET to help define and implement the testing strategy across our products. • Work in customer-focused agile squads and collaborate with product managers, designers, and engineers to define the next iteration of • Work collaboratively across our missions to define and continually improve our testing strategy for new and existing products • Develop clean, elegant, and reusable code that is easy to maintain and extend • Build scalable automated testing systems that enable us to ship value to customers at pace • Support other engineers to test their software and act as a subject matter expert • Work with stakeholders across the business to shape the future of quality engineering at mettle and put long-term interests of our customers at the heart of key decisions • Drive the direction of our testing chapter to ensure it maintains the highest standards of technology and process What makes you a great fit • Excellent programming skills in Javascript and React Native • Hands-on experience with common back-end and front-end test automation frameworks, and integrating these into the continuous deployment pipeline • Knowledge of software performance and automated security testing techniques and tooling • Awareness of cloud infrastructure and configuration • A strong understanding of Behaviour-Driven Development (BDD) • Experience delivering and testing distributed microservices as part of an agile team • You will be required to live and work from Polish territory and to work from our Warsaw office at least twice a month What awaits you at Avenga? Private medical care Cafeteria benefits program Private insurance

🏢 Summary: Senior SDET role focused on building and maintaining Python-based automated test frameworks for API-driven, microservices applications in the fintech/payments domain. The position emphasizes API testing, CI/CD integration, security and compliance validation, and quality engineering within Agile teams. The role combines hands-on automation development with responsibility for test strategy and continuous quality improvement. 🗂️ Requirements: 5+ years of experience in software testing and test automation, Strong hands-on experience with Python and PyTest, Experience building automated test frameworks from scratch, Extensive experience testing REST APIs, microservices, and distributed systems, Experience with Postman, Swagger/OpenAPI, API mocking, and contract testing, Experience integrating automated tests into Jenkins and Git-based CI/CD pipelines, Strong knowledge of integration, regression, and performance testing, Experience validating data using SQL with PostgreSQL, MySQL, or Oracle, 2+ years of experience in fintech, payments, banking, or financial services, Knowledge of PCI DSS and regulated financial systems testing 📃 Skills: Python, PyTest, REST, Microservices, Postman, Swagger, OpenAPI, Mocking, Jenkins, Git, CI/CD, SQL, PostgreSQL, MySQL, Oracle, Integration, Regression, Performance, PCI-DSS 🏢 Description: 🚀 SDET (API Testing | Python) 📍 Hybrid | 1 day hybrid in Gdańsk or Warsaw Are you passionate about quality engineering, test automation, and building robust testing frameworks? Do you enjoy breaking systems before users do? We're looking for a Senior SDET (Software Development Engineer in Test) with strong Python and API testing expertise to help ensure the quality, reliability, and security of mission-critical applications in the fintech and payments industry. This role combines software development, automation engineering, and quality assurance, with a strong focus on API testing, CI/CD integration, and modern AI-powered engineering practices. 💡 Your Mission 🧪 Test Automation & Quality Engineering Design, develop, and maintain scalable automated test frameworks using Python. Create and execute API test suites for RESTful and microservices-based applications. Develop end-to-end, integration, regression, and performance test scenarios. Improve test coverage, reliability, and execution efficiency across the platform. Collaborate with developers to implement shift-left testing practices. 🔍 API Testing Validate APIs for functionality, performance, security, and reliability. Design comprehensive test cases based on business and technical requirements. Perform contract, integration, and end-to-end testing across distributed systems. Analyze API logs and troubleshoot complex issues. ⚙️ CI/CD & Automation Integrate automated tests into Jenkins CI/CD pipelines. Support continuous testing strategies within Agile delivery teams. Improve automation processes to enable faster and safer releases. Monitor test execution and provide actionable quality metrics. 🤖 AI-Powered Quality Engineering Leverage AI tools such as GitHub Copilot, ChatGPT, Claude, and Cline to accelerate test development and improve productivity. Utilize AI-assisted approaches for test case generation, defect analysis, and documentation. Explore innovative AI-driven testing techniques and share best practices across the team. 🔐 Security & Compliance Testing Validate application security controls and authentication mechanisms. Support testing activities related to compliance and regulatory requirements. Ensure high-quality standards for systems processing sensitive financial data. 🤝 Collaboration Work closely with Developers, Product Managers, Business Analysts, and QA teams. Participate in Agile/Scrum ceremonies and planning sessions. Contribute to quality strategy, documentation, and process improvements. 🎯 Must-Have Skills Automation & Programming ✔️ 5+ years of experience in software testing and test automation ✔️ Strong hands-on experience with: Python PyTest API automation frameworks ✔️ Experience building and maintaining automated test frameworks from scratch API Testing ✔️ Extensive experience testing: REST APIs Microservices Distributed systems ✔️ Experience with: Postman Swagger/OpenAPI API mocking tools Contract testing CI/CD & DevOps ✔️ Experience with: Jenkins Git CI/CD pipelines ✔️ Understanding of modern software delivery practices Databases ✔️ Experience validating data using: PostgreSQL MySQL Oracle SQL queries Quality Engineering ✔️ Strong understanding of: Test automation best practices Integration testing Regression testing Performance testing Defect management ⭐ Nice to Have Experience with Selenium, Playwright, or Cypress Experience with performance testing tools such as JMeter or Gatling Experience working in cloud environments (AWS, Azure, or GCP) Knowledge of Docker and Kubernetes Familiarity with security testing methodologies Open-source contributions Technical blogging or community involvement 💳 FinTech & Payments Experience 2+ years of experience in fintech, payments, banking, or financial services Understanding of payment processing systems and transaction workflows Knowledge of PCI DSS compliance requirements Familiarity with financial messaging standards and real-time payment systems Experience testing highly regulated applications 🎁 What You'll Get ✨ Opportunity to work on innovative fintech and payment solutions ✨ High-impact role shaping quality standards and automation strategy ✨ Exposure to cutting-edge AI-powered engineering tools ✨ Hybrid work model (Gdańsk or Warsaw) ✨ Collaborative and supportive engineering culture ✨ Career growth opportunities and continuous learning ✨ Influence on testing frameworks, tooling, and engineering best practices 🚀 Ready to elevate software quality through automation, innovation, and engineering excellence? Join us and help build reliable, secure, and scalable platforms that power the future of digital payments.