Data Quality Engineer

🏢 Summary: Senior Data Engineer role focused on designing and building scalable serverless data ingestion pipelines in AWS within the healthcare domain. The position emphasizes strong Python engineering, cloud architecture leadership, and implementation of modern data platforms and DevOps practices. The role involves driving technical excellence and delivering reliable, high-impact data solutions in an international environment. 🗂️ Requirements: 10+ years of experience in Python programming, Strong software engineering skills in data processing, Extensive experience with AWS Cloud and Serverless Architecture, Hands-on experience with AWS Lambda, S3, and Cognito, Experience building E2E automated tests for data pipelines, Practical knowledge of Data Mesh and Medallion Architecture, Experience with Infrastructure as Code using AWS CDK or Terraform, Experience with CI/CD pipelines using GitLab or GitHub Actions, Experience with ETL/ELT processes and dbt, Experience working with GraphQL, Minimum B2 level English proficiency 📃 Skills: Python, AWS, Lambda, S3, Cognito, Boto3, DataMesh, Medallion, CDK, Terraform, GitLab, GitHubActions, ETL, ELT, dbt, GraphQL, CI/CD 🏢 Description: We are looking for a highly skilled Data Engineer to join our client in the healthcare sector. Our requirements: Technical Expertise: Python Programming: 10+ years of experience with strong Software Engineering skills focused on data processing. AWS & Serverless: Extensive experience with AWS Cloud, specifically focusing on Serverless Architecture and services (including AWS Lambda , AWS S3 Tables , and AWS Cognito ). Automated Testing: Proven experience in developing End-to-End (E2E) automated tests to ensure pipeline reliability, utilizing tools such as Boto3 for AWS resource validation. Data Concepts: Practical knowledge of Data Mesh and Medallion Architecture , along with general data processing and analysis. DevOps & IaC: Hands-on experience with Infrastructure as Code ( AWS CDK or Terraform ) and CI/CD pipelines ( GitLab pipelines or GitHub Actions ). Modern Tooling: Experience with ETL/ELT solutions, dbt , and GraphQL . Communication & Soft Skills: English Language: Minimum B2 level , enabling smooth daily technical and business communication in a global environment. Collaboration: Excellent communication skills and the ability to thrive in a collaborative, international team. Standards: A strong commitment to high standards of ethics, quality (Clean Code), and reliable delivery. Nice to have: Experience with Snowflake and SQL . Knowledge of Data Vault 2.0 modeling. Experience with Databricks . Familiarity with the Microsoft ecosystem: C# / .Net, T-SQL, SQL Server , and Azure DevOps . Experience with Star Schema database modeling. Knowledge of Descriptive Statistics. Your responsibilites: Design and build scalable Data Ingestion pipelines within the AWS cloud ecosystem. Lead technical delivery and implementation of core platform components, ensuring architectural integrity across the entire data lifecycle. Collaborate with Engineering Managers and cross-functional teams across the globe and Poland. Drive technical excellence by improving team processes, architecture standards, and engineering best practices. Support and consult with stakeholders to ensure successful delivery of high-impact, data-driven solutions. Contribute to the growth and maturity of the team’s cloud and data engineering capabilities. We offer: Challenging role within the company that creates innovative solutions. Work in international environment on demanding projects. Remote work model. Subsidized private medical care, life insurance, multisport card. Integration meetings. Employee referral program. If you have a deep expertise in Python and AWS , and building scalable Serverless data architectures is where you truly excel, this is the perfect role for you!

🏢 Summary: Talent Pool opportunity for a Quality Assurance Engineer focused on manual, integration, and regression testing in software projects. The role involves defect management, test documentation, and API testing support while collaborating with development teams. Applications will be considered for future recruitment processes based on business needs. 🗂️ Requirements: Minimum 3 years of software testing experience, Knowledge of SQL, Experience with test management tools, Experience with defect tracking tools, Experience with test support tools, Experience in manual testing, Experience in integration testing, Experience in regression testing, Experience in API testing support 📃 Skills: SQL, JIRA, Xray, TestRail, HPQC, SoapUI, JMeter, Postman, API, REST, XML, JSON, Manual, Integration, Regression, Testing 🏢 Description: This posting is part of a Talent Pool for the Quality Assurance Engineer role. Submitted applications will be used to enable a quick response to future business needs. We will contact selected candidates only when a relevant recruitment process is initiated. Responsibilities Executing manual, integration, and regression tests based on project requirements Reporting, tracking, and verifying defects using test and defect management tools Preparing and maintaining basic test documentation Cooperating with developers, analysts, and other project stakeholders to ensure software quality Supporting API testing and selected test automation activities Requirements Minimum 3 years of experience in software testing Knowledge of SQL Experience with test management and defect tracking tools such as JIRA, Xray, TestRail, HPQC, or similar Experience with test support tools such as SoapUI, JMeter, Postman, or similar Nice to Have Minimum 3 years of experience working in Agile teams Minimum 3 years of experience in creating testing process documentation Experience in projects involving integration testing with external systems Knowledge of databases such as PostgreSQL and Oracle At least 1 year of experience in interface test automation, including REST APIs, XML, SOAP, and JSON ISTQB Foundation Level certification Practical knowledge of XML, JSON, Web Services, and REST Strong analytical thinking skills Well-developed interpersonal skills Ability to work independently

🏢 Summary: The role focuses on ensuring high quality across data pipelines and analytics by designing and executing tests for ETL workflows and large-scale data transformations. It involves building and maintaining automated testing solutions using Python and Spark technologies, validating data accuracy, and collaborating with Data Engineers and stakeholders. The position also includes improving QA processes, supporting integration and performance testing, and creating reporting dashboards for quality metrics. 🗂️ Requirements: Strong hands-on experience with Python for automation, scripting, and data validation, Good working knowledge of PySpark, Good working knowledge of Spark SQL, Experience with Azure Data Factory for ETL orchestration and validation, Experience with Azure Databricks for large-scale data processing, Ability to build Power BI reports for QA visibility, Experience with testing frameworks in data/analytics environments, Understanding of QA practices for data-centric systems, Ability to design and maintain automated tests for data pipelines 📃 Skills: Python, PySpark, SparkSQL, Azure, DataFactory, Databricks, PowerBI, ETL, SQL, Automation, Testing 🏢 Description: We’re looking for a QA Engineer with strong hands-on skills to help ensure high quality across our data and analytics work. In this role, you’ll design and run tests for data pipelines and ETL workflows, build and maintain automation, and work closely with Data Engineers and business stakeholders to validate data accuracy and reliability. If you enjoy digging into data, improving testing frameworks, and building practical automation that catches issues early, you’ll feel at home here. Responsibilities: Design and improve testing processes for data pipelines, ETL workflows, and analytics outputs. Develop and maintain automated tests and utilities in Python, PySpark, and Spark SQL to validate transformations and data integrity. Execute and report on test cases for new features and bug fixes using appropriate tools and frameworks. Collaborate with Data Engineers to validate end-to-end pipelines and support delivery during busy periods (including occasional help with data transformations). Apply best practices across test automation, integration testing, performance testing, and manual testing where needed. Write clean, scalable test code that’s easy to maintain and provides good coverage. Create and maintain documentation for test processes, test cases, and results. Work with stakeholders to understand testing needs and recommend practical solutions aligned with business goals. Build simple Power BI dashboards to track test results and quality metrics. Requirements: Strong hands-on experience with Python (automation, scripting, data validation). Good working knowledge of PySpark and Spark SQL , especially for testing large-scale data transformations. Experience with Azure Data Factory for orchestrating and validating ETL workflows. Experience with Azure Databricks for data processing and testing data pipelines at scale. Ability to build simple Power BI reports for visibility into QA results. Familiarity with testing frameworks and approaches used in data/analytics environments. Understanding of QA practices for data-centric systems (automation, integration, performance testing, data quality checks). Strong communication skills and a collaborative mindset.

🏢 Summary: Quality Assurance Engineer role focused on testing web applications, CMS platforms, and API integrations within an Agile environment. The position involves functional, regression, and integration testing, defect tracking, and collaboration with development teams to ensure software reliability. The offer includes opportunities to develop automation testing skills and work with modern technology infrastructure. 🗂️ Requirements: Commercial experience as a QA Engineer in web testing, Proficiency with browser developer tools, Experience with Postman, Experience with Swagger, Experience with Mitmproxy, Experience with Lighthouse, Practical experience testing APIs, Experience working with CMS platforms, Ability to create structured test cases and test documentation, Experience working in Agile/Scrum environments, Experience using Jira or equivalent SDLC tools, Professional communication skills in Polish, Professional communication skills in English 📃 Skills: Postman, Swagger, Mitmproxy, Lighthouse, Jira, CMS, API, Agile, Scrum, Python, TypeScript, AWS, Jenkins, Linux, WCAG, SEO, AEM 🏢 Description: We are seeking a highly skilled and proactive Quality Assurance Engineer to oversee quality standards across our core web applications and CMS ecosystems. In this role, you will collaborate with an established Agile team dedicated to delivering high-performance web products and robust API integrations. This position is ideal for an analytical professional who thrives on identifying system vulnerabilities and ensuring optimal software reliability. Key Responsibilities Execute end-to-end functional, regression, and integration testing for web-based platforms. Validate internal and external API endpoints to ensure data integrity and system performance. Design, author, and maintain comprehensive test documentation and structured test cases. Participate actively in Agile/Scrum ceremonies to estimate workloads, prioritise tasks, and coordinate QA workflows. Partner with software engineers and product stakeholders to identify, isolate, track, and resolve technical defects. Requirements Professional QA Experience: Documented commercial experience as a QA Engineer specialising in web testing. Technical Toolset: Proficiency with development and inspection tools, including browser developer tools, Postman, Swagger, Mitmproxy, and Lighthouse. API & CMS Testing: Practical experience validating APIs and working within Content Management Systems (CMS). Test Design: Strong capability in utilising established test design techniques to write clear, precise, and comprehensive test scripts. Agile Methodologies: Solid experience working within standard Agile/Scrum software development lifecycles utilising Jira or equivalent SDLC management tools. Professional Competencies: A proactive approach to analytical problem-solving, with the ability to execute tasks independently whilst remaining a collaborative team contributor. Languages: Professional-level written and verbal communication skills in both Polish and English. Nice to Have Adobe Experience Manager: Prior QA experience within the AEM ecosystem. Non-Functional Testing: Exposure to non-functional testing methodologies, including accessibility standards (WCAG), SEO validation, and web performance metrics. Test Automation: Hands-on experience with test automation frameworks (preferably Python or TypeScript), or a strong career interest in developing automation skills. Cloud Infrastructure: Experience monitoring and analysing application logs within AWS environments. CI/CD & Environment Control: Basic proficiency with Jenkins (or similar continuous integration tools) and executing fundamental commands in a Linux terminal. What We Offer Contract Structure: A direct, stable B2B cooperation model. Professional Development: Structured opportunities to upskill into automated testing frameworks. Modern Stack: The opportunity to work within a highly optimised, modern technology infrastructure.

🏢 Summary: Role for a Quality Assurance Engineer responsible for ensuring the quality of a B2B sales platform through automated and manual testing. The position focuses on building automated test scenarios, testing REST APIs, and performing performance tests within a microservices architecture. The engineer works closely with developers to maintain high quality from the early stages of new service development. 🗂️ Requirements: Minimum 3 years of experience in test automation, Strong knowledge of Playwright with TypeScript or Selenide with Java, Experience in REST API testing, Experience with GitLab, Jenkins, and Docker in CICD environments, Experience in performance testing and analysis 📃 Skills: Playwright, TypeScript, Selenide, Java, REST, API, GitLab, Jenkins, Docker, CICD, K6, Automation, Testing, Performance, Microservices 🏢 Description: Dołącz do naszego zespołu Software Engineering W Software Engineering technologia spotyka się z biznesem. Jesteśmy multidyscyplinarnym zespołem ekspertów backend, frontend, big data oraz QA, odpowiedzialnym za wszystko, co dzieje się na naszej platformie sprzedażowej B2B. Ściśle współpracujemy z Analitykami Biznesowymi oraz Product Ownerami, którzy łączą wiedzę biznesową i techniczną, dzięki czemu tworzymy rozwiązania realnie wpływające na rozwój organizacji. Kiedy pojawiają się ambitne cele - takie jak dostawa towaru do klienta w ciągu dwóch godzin czy umożliwienie sprzedaży bezpośrednio z magazynu producenta - tworzymy dedykowane Feature Teamy i wspólnie przekuwamy pomysły w innowacyjne rozwiązania. Nie boimy się wyzwań: refaktoryzujemy monolity, wdrażamy nowoczesne wzorce architektoniczne i stale optymalizujemy nasze systemy, aby były szybsze, lepsze i bardziej skalowalne. Quality Assurance Engineer Twoje zadania: Projektowanie i implementacja automatycznych scenariuszy testowych z wykorzystaniem Playwright Przeprowadzanie testów manualnych oraz eksploracyjnych dla nowych funkcjonalności i usług Testowanie REST API w celu zapewnienia niezawodności i poprawności działania Wykonywanie oraz analiza testów wydajnościowych w celu identyfikacji wąskich gardeł Ścisła współpraca z developerami i innymi QA Engineerami na każdym etapie procesu wytwarzania oprogramowania Odpowiedzialność za jakość nowych mikroserwisów od pierwszego dnia ich powstawania Nasze wymagania: Minimum 3 lata praktycznego doświadczenia w automatyzacji testów Bardzo dobra znajomość Playwright (TypeScript) lub Selenide (Java) Doświadczenie w testowaniu API (REST) Znajomość GitLab, Jenkins oraz Docker w środowisku CI/CD Umiejętność efektywnej komunikacji i pracy zespołowej Dbałość o jakość oraz szczególną uwagę na detale Dobra znajomość języka angielskiego w mowie i piśmie Mile widziane: Doświadczenie w pracy z narzędziami do testów wydajnościowych, w szczególności K6 Oferujemy: Pracę hybrydową w biurze (biuro w Warszawie przy stacji metra Młociny). Możliwość rozwoju zawodowego w strukturach wewnętrznych. Możliwość skorzystania z benefitów pozapłacowych na preferencyjnych warunkach. Możliwość współpracy z zespołem ekspertów i rozwoju zawodowego w obszarze jakości. Zniżkę pracowniczą na części samochodowe grupy Inter Cars. Szkolenia wewnętrzne i zewnętrzne rozwijające kompetencje miękkie i techniczne. Dofinansowane do zajęć z języka angielskiego.

🏢 Summary: B2B QA Engineer role focused on automation testing with Playwright within an Agile Scrum environment for a Customer Portal team. The position involves designing and executing automated tests, test planning, defect tracking, and supporting regression and manual testing when needed. The role requires close collaboration with the Scrum team to ensure high-quality IT solution delivery. 🗂️ Requirements: 2–3+ years of experience in automation testing, Experience with Playwright for test automation, Hands-on experience in writing clear and comprehensive test cases, Experience working in Agile/Scrum environment, Familiarity with GitHub, Familiarity with X-ray, Familiarity with Confluence, Familiarity with Jira, Fluency in English, Fluency in Polish 📃 Skills: Playwright, Automation, Testing, GitHub, X-ray, Confluence, Jira, Scrum, Agile, Pytest, Python, REST, XML, Microservices, CI/CD 🏢 Description: Contract: B2B Role: QA Engineer Location: Gdansk/ Warsaw Language Requirement: Fluency in English and Polish About the Role: We are looking for an experienced Quality Assurance Engineer to support the Customer Portal team, with a strong focus on automation testing using Playwright. The role focuses on ensuring the quality of delivered IT solutions within an Agile Scrum environment through automated testing, test planning, defect tracking, and regression testing. Key Responsibilities: Actively participate as a member of the Scrum team, ensuring the quality of delivered IT solutions. Review requirements, specifications, and technical design documents to provide timely and meaningful feedback. Create detailed, comprehensive, and well-structured automated test plans and test cases. Estimate, prioritize, and plan test activities with a focus on automation. Design, execute, and document automated tests using Playwright, while also being available to support manual testing when necessary. Identify, record, and track defects, maintaining clear communication within the team. Define and perform regression tests. Stay current with new testing tools and strategies, continuously improving the testing process in the assigned project. Effectively manage time to deliver results within established deadlines. Required Skills: 2–3+ years of experience in automation testing, ideally with Playwright. Strong communication skills in both Polish and English. Hands-on experience in writing clear and comprehensive test cases using test design techniques. Familiarity with tools supporting test activities, including GitHub, X-ray, Confluence, and Jira. Experience in software development within the Agile/Scrum process. - Ability to collaborate within a larger team while also working independently. Openness to sharing knowledge and ideas. Nice-to-Have: Experience with Pytest (Python) for test automation. Knowledge of API testing (e.g., REST, XML, Microservices). Familiarity with CI/CD tools and practices.

🏢 Summary: Long-term B2B hybrid contract for a Quality Engineer focused on automated testing across API, frontend, integration, and end-to-end layers. The role includes non-functional testing, CI/CD quality assurance, and validation of workflows, security, and AI/agent performance in a collaborative development environment. 🗂️ Requirements: Experience in spec-driven development, Knowledge of contract-first delivery, Proficiency in .NET, Proficiency in React, Experience with API-first delivery, Understanding of agentic workflows, Understanding of human-in-the-loop governance, Commitment to auditability and traceability, Commitment to explainability by design 📃 Skills: .NET, React, API, CI/CD, Automation, Testing, Performance, Security, Validation, Integration 🏢 Description: Contract: B2B, long term Start date: mid-August Mode: hybrid (2 days per week at the office in Warsaw) Introduction & Summary: A highly skilled Quality Engineer is sought to join a dynamic team focused on test automation and quality assurance. This role emphasizes expertise in API, frontend, integration, and end-to-end testing, with a strong focus on non-functional testing aspects such as performance and security. Ideal candidates will possess a collaborative mindset and a commitment to quality from the onset of the development process. Main Responsibilities: Executing API, frontend, integration, and end-to-end test automation. Performing contract testing and schema validation. Defining acceptance criteria from specifications. Validating workflows, state transitions, authorizations, and audits. Conducting data quality and traceability testing. Implementing CI/CD quality gates and ensuring release readiness. Carrying out non-functional testing for performance, reliability, and security. Evaluating AI/agent performance including quality recommendations and validations. Key Requirements: Experience in spec-driven development mindset. Knowledge of contract-first delivery methodologies. Proficiency in .NET, React, and API-first delivery. Understanding of agentic workflow and human-in-the-loop governance. Commitment to auditability, traceability, and explainability by design. Nice to Have: Experience in cross-capability collaboration. A strong quality and validation culture.

🏢 Summary: Long-term B2B opportunity for a Quality Engineer focused on automated testing across API, frontend, integration, and end-to-end environments in a hybrid Warsaw setup. The role includes non-functional testing, CI/CD quality assurance, contract testing, and validation of AI-driven workflows. Candidates should have strong experience with spec-driven development, contract-first delivery, and technologies such as .NET and React. 🗂️ Requirements: Spec-driven development, Contract-first delivery, Test automation, API testing, Frontend testing, Integration testing, End-to-end testing, Contract testing, Schema validation, CI/CD quality gates, Non-functional testing, Performance testing, Security testing, .NET, React, API-first delivery, Agentic workflow understanding, Auditability and traceability practices 📃 Skills: .NET, React, API, CI/CD, QA, Testing, Automation, Security, Performance, Validation, Integration 🏢 Description: Contract: B2B, long term Start date: mid-August Mode: hybrid (2 days per week at the office in Warsaw) Introduction & Summary: A highly skilled Quality Engineer is sought to join a dynamic team focused on test automation and quality assurance. This role emphasizes expertise in API, frontend, integration, and end-to-end testing, with a strong focus on non-functional testing aspects such as performance and security. Ideal candidates will possess a collaborative mindset and a commitment to quality from the onset of the development process. Main Responsibilities: Executing API, frontend, integration, and end-to-end test automation. Performing contract testing and schema validation. Defining acceptance criteria from specifications. Validating workflows, state transitions, authorizations, and audits. Conducting data quality and traceability testing. Implementing CI/CD quality gates and ensuring release readiness. Carrying out non-functional testing for performance, reliability, and security. Evaluating AI/agent performance including quality recommendations and validations. Key Requirements: Experience in spec-driven development mindset. Knowledge of contract-first delivery methodologies. Proficiency in .NET, React, and API-first delivery. Understanding of agentic workflow and human-in-the-loop governance. Commitment to auditability, traceability, and explainability by design. Nice to Have: Experience in cross-capability collaboration. A strong quality and validation culture.

🏢 Summary: Urgent contract opportunity for an experienced Quality Engineer / QA Analyst to support Salesforce development in a fast-paced Agile environment. The role focuses on designing and executing comprehensive testing strategies to ensure high-quality Salesforce solutions. Remote position (Poland-based) with immediate start on a B2B/freelance basis. 🗂️ Requirements: 5+ years of QA/Testing experience, Hands-on experience with Salesforce projects, Experience designing and executing test plans and test cases, Experience with functional, regression, integration, and UAT testing, Experience with API testing (REST/SOAP), Knowledge of QA methodologies, tools, and processes, Ability to work in Agile/Scrum environments, Fluent English communication skills 📃 Skills: Salesforce, QA, Testing, API, REST, SOAP, Postman, Selenium, TestNG, Agile, Scrum 🏢 Description: We are urgently hiring on behalf of a multinational client in the financial industry for a skilled Quality Engineer / QA Analyst to join their Salesforce development and testing team. This role involves ensuring the delivery of high-quality solutions in a fast-paced, Agile environment. Let me know what you think. Feel free to refer a friend if this is not for you. send CV to marcillina.tietjen@dcvtechnologies.co.uk if interested DCV/insys/tiff/04/06/2026 Position: Quality Engineer / QA Analyst – Salesforce Location: Remote (Poland-based) Contract Type: B2B / Freelance Experience: 5+ years in QA/Testing, Salesforce projects Start Date: ASAP - Immediate start date Key Responsibilities: Design, develop, and execute test plans and test cases for Salesforce applications. Perform functional, regression, integration, and UAT testing. Work closely with developers, business analysts, and Salesforce admins to validate requirements and ensure quality. Identify, document, and track defects through resolution. Ensure testing aligns with Agile/Scrum delivery cycles. Required Skills & Experience: 5+ years’ experience in QA/Testing, with Salesforce as a key focus area. Strong knowledge of QA methodologies, tools, and processes. Experience with API testing (Postman, REST/SOAP). Familiarity with test automation frameworks (Selenium, TestNG, or similar) is a plus. Excellent communication skills in English.

🏢 Summary: Remote B2B contract for an experienced Quality Engineer / QA Analyst to support Salesforce development in a financial industry project. The role focuses on designing and executing comprehensive test strategies within an Agile environment to ensure high-quality Salesforce solutions. Immediate start for a Poland-based specialist with strong QA and API testing expertise. 🗂️ Requirements: 5+ years of QA/Testing experience, Hands-on experience with Salesforce projects, Experience designing and executing test plans and test cases, Experience with functional, regression, integration, and UAT testing, Experience with API testing (REST/SOAP), Knowledge of QA methodologies, tools, and processes, Ability to work in Agile/Scrum environment, Professional English proficiency 📃 Skills: Salesforce, Selenium, TestNG, Postman, REST, SOAP, Agile, Scrum, QA, UAT 🏢 Description: We are urgently hiring on behalf of a multinational client in the financial industry for a skilled Quality Engineer / QA Analyst to join their Salesforce development and testing team. This role involves ensuring the delivery of high-quality solutions in a fast-paced, Agile environment. Let me know what you think. Feel free to refer a friend if this is not for you. send CV to marcillina.tietjen@dcvtechnologies.co.uk if interested DCV/insys/tiff/04/06/2026 Position: Quality Engineer / QA Analyst – Salesforce Location: Remote (Poland-based) Contract Type: B2B / Freelance Experience: 5+ years in QA/Testing, Salesforce projects Start Date: ASAP - Immediate start date Key Responsibilities: Design, develop, and execute test plans and test cases for Salesforce applications. Perform functional, regression, integration, and UAT testing. Work closely with developers, business analysts, and Salesforce admins to validate requirements and ensure quality. Identify, document, and track defects through resolution. Ensure testing aligns with Agile/Scrum delivery cycles. Required Skills & Experience: 5+ years’ experience in QA/Testing, with Salesforce as a key focus area. Strong knowledge of QA methodologies, tools, and processes. Experience with API testing (Postman, REST/SOAP). Familiarity with test automation frameworks (Selenium, TestNG, or similar) is a plus. Excellent communication skills in English.