Data Analyst

🏢 Summary: Hybrid Data Analyst role focused on transforming and standardizing clinical study data into analysis-ready datasets, enabling cross-study consistency and reusability. The position involves data wrangling, anomaly detection, FAIR data improvements, and building reproducible workflows using Python, SQL, and AWS tools. The role requires close collaboration with stakeholders to translate ambiguous business questions into structured analytical outputs within a GDPR-compliant environment. 🗂️ Requirements: Proficiency in Python for data analysis and transformation, Proficiency in SQL for querying and validation, Experience with AWS environments including S3, Experience standardizing and harmonizing heterogeneous datasets, Ability to detect patterns, anomalies, and structural differences across datasets, Experience building reproducible data workflows, Experience with data visualization tools, Knowledge of GDPR-compliant data handling, Fluent English (spoken and written) 📃 Skills: Python, SQL, AWS, S3, PowerBI, GDPR, CDISC, SDTM, ADaM, SAS, MachineLearning, AI, LLM 🏢 Description: Data Analyst within Study Patient Operations About the project We are looking for a Data Analyst in collaboration with a global, science‑driven biopharmaceutical company that uses data and advanced analytics to accelerate the development of innovative therapies. As a Data Analyst in Study Patient Operations, you will transform diverse clinical study data into reliable, analysis‑ready datasets and support cross‑study standardisation and reusability. This role is ideal for someone who thrives in ambiguity, shows strong analytical curiosity, and proactively proposes structured solutions even with incomplete information. Work mode: hybrid — based in Warsaw, with one day per week on-site at the client’s office . Tasks Cross‑study data standardisation: Standardise and harmonise data from multiple studies with varying conventions to enable consistent cross‑study analysis. Pattern and anomaly detection: Identify patterns, discrepancies, anomalies, and structural differences across datasets and convert them into actionable mapping rules and validation checks. FAIR data improvement: Strengthen metadata, lineage, definitions, and data quality to enhance data accessibility and reusability, even when documentation is incomplete. Problem framing & stakeholder collaboration: Translate broad or ambiguous business questions into clear data requirements, analytical approaches, and defined pipeline outputs. Data wrangling & transformation: Extract, join, transform, and reconcile datasets using Python, SQL, and AWS‑based tools to support downstream analysis. Compliance, documentation & insight communication: Ensure GDPR‑aligned data handling, maintain audit‑ready documentation, and clearly communicate insights, limitations, and assumptions. Expectations Strong analytical problem‑solving skills in ambiguous contexts and ability to iterate toward clarity. Learning agility , with motivation to quickly understand new domains and clinical data standards. Standardisation mindset , with experience proposing consistent mappings across heterogeneous datasets. Pattern recognition ability across multiple datasets/studies. Proficiency in Python and SQL for analysis, validation, and reproducible workflows. Experience with AWS environments , especially S3 and analytical/querying tools. Data visualisation skills (Power BI or similar). Excellent communication and documentation abilities , especially explaining “what the data means.” Fluent in English (spoken and written) Beneficial Skills Familiarity with clinical trial standards (e.g., CDISC SDTM, ADaM ). Experience with SAS-formatted clinical datasets . Understanding of clinical study processes , privacy/consent principles, and patient data handling. Exposure to machine learning / AI / agentic tools . Interest or experience in LLM-based tooling , especially for metadata, documentation, or analytics workflows. We offer Ongoing support from a dedicated agent , taking care of your project continuity, client contact, necessary formalities, work comfort and development, Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors, Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle, Spectacular integration events , both for you (e.g., annual Kick-Off trip , Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres), Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients, Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years, A complete benefits package , including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad. About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sounds familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our mission is to provide stable and rewarding collaborations that drive your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience creating IT solutions for over 200 organizations.

🏢 Summary: Role for an experienced Python Developer to design and maintain scalable systems and data pipelines for digital health solutions. The position involves building prototypes and MVPs, contributing to system architecture, and improving performance and reliability of applications. It requires strong expertise in scalable software development and hands-on data pipeline implementation. 🗂️ Requirements: 5+ years of experience with Python, Hands-on experience building data pipelines, Strong knowledge of software architecture, Experience with scalable systems development, Ability to design and maintain high-quality codebases 📃 Skills: Python, AWS, Azure, CI/CD, SQL, Elasticsearch, OpenSearch, Neptune, Neo4j 🏢 Description: Python Developer with data pipeline About the project We are seeking a Python Developer with data pipeline for a global life‑science company driving innovation in digital health . You will build and maintain scalable applications, working closely with cross‑functional teams and contributing to new features and MVPs. Success in this role requires strong system architecture skills, hands‑on experience with scalable software, and a passion for experimentation and rapid prototyping. Tasks Develop and maintain scalable systems and data pipelines Build prototypes and MVPs to test new ideas Contribute to system architecture and high‑quality coding practices Improve performance, reliability, and maintainability of solutions Expectations 5+ years of experience with Python Hands-on experience building data pipelines Strong understanding of software architecture and scalable development Clear and effective communication skills Advanced English proficiency (C1 level) Nice to have Experience with AWS services Azure DevOps CI/CD pipelines Relational databases Elasticsearch/OpenSearch Graph databases (e.g., Neptune, Neo4j) We offer Ongoing support from a dedicated agent , taking care of your project continuity, client contact, necessary formalities, work comfort and development, Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors, Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle, Spectacular integration events , both for you (e.g., annual Kick-Off trip , Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres), Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients, Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years, A complete benefits package , including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad. About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sounds familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our mission is to provide stable and rewarding collaborations that drive your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience creating IT solutions for over 200 organizations.

🏢 Summary: Senior Data Analyst role focused on designing and delivering advanced Power BI solutions, transforming complex data into actionable insights, and supporting strategic decision-making across global business functions. The position involves advanced analytics, data modeling, automation, and contribution to a large-scale data platform modernization initiative. Hybrid work model based in Poznań. 🗂️ Requirements: 5+ years of experience in Business Analytics or Business Intelligence, Strong hands-on experience with Power BI, Advanced SQL skills, Strong knowledge of DAX and data modeling, Experience with cloud platforms (GCP or Azure), Experience with Databricks, Experience with Git, Ability to perform advanced analytics (segmentation, cohort analysis, marketing analytics) 📃 Skills: PowerBI, SQL, BigQuery, DAX, Python, GCP, Azure, Databricks, Git, QlikView 🏢 Description: Contract of Employment - only Hybrid work from Poznań We are looking for a Senior Data Analyst to join a dynamic global Data Analytics team and collaborate with key stakeholders across CRM, Retail, Brand, e-commerce, Finance, and Supply Chain. The role is based in Poznań, Poland, with a functional reporting line to the company’s global headquarters. In this position, you will transform complex data into actionable insights that support strategic decision-making and drive measurable business impact. You will also play an important role in fostering a data-driven culture and contribute to a strategic initiative focused on modernizing the organization’s data platform to ensure scalability and future readiness. Key Responsibilities Design and develop Power BI solutions, including datasets, star-schema models, DAX measures, and dashboards Deliver high-quality ad-hoc analyses and translate business needs into clear insights and recommendations Collaborate with global stakeholders, align on KPIs and definitions, and present findings to senior leadership Improve data quality, enhance transformation layers, and ensure consistency across reporting Automate recurring analyses and optimize processes for efficiency Perform advanced analytics such as segmentation, cohort analysis, and marketing effectiveness Enable self-service analytics by empowering business teams to leverage data independently Promote a data-driven mindset across the organization Contribute to a global data transformation initiative and the evolution of the analytics ecosystem Experience: 5+ years of experience in Business Analytics or Business Intelligence Strong hands-on experience with Power BI Technical Skills: Advanced SQL (BigQuery is a plus) Strong knowledge of DAX and data modeling Python for advanced analytics (preferred) Experience with cloud platforms (GCP or Azure), Databricks, and Git Familiarity with QlikView is a plus Analytical Expertise: Power BI development and dashboard design Data modeling (star schema, semantic layer optimization) Advanced analytics (segmentation, cohort analysis, marketing analytics) Process automation and optimization Soft Skills: Excellent data storytelling and communication skills Strong stakeholder management in a global environment Ability to prioritize and align business needs and KPIs Passion for promoting data-driven decision-making Experience supporting organizational change and adoption of new tools Strong presentation skills with the ability to influence decision-makers What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361.

🏢 Summary: Senior Data Analyst role focused on designing and delivering advanced Power BI solutions, transforming complex data into actionable insights, and supporting global stakeholders in strategic decision-making. The position involves modernizing the data platform, improving data quality, and enabling self-service analytics within a global data transformation initiative. 🗂️ Requirements: 5+ years of experience in Business Analytics or Business Intelligence, Strong hands-on experience with Power BI, Advanced SQL skills, Strong knowledge of DAX and data modeling, Experience with cloud platforms (GCP or Azure), Experience with Databricks, Experience with Git, Ability to perform advanced analytics (segmentation, cohort analysis, marketing analytics) 📃 Skills: PowerBI, SQL, BigQuery, DAX, Python, GCP, Azure, Databricks, Git, QlikView 🏢 Description: Contract of Employment - only Hybrid work from Poznań We are looking for a Senior Data Analyst to join a dynamic global Data Analytics team and collaborate with key stakeholders across CRM, Retail, Brand, e-commerce, Finance, and Supply Chain. The role is based in Poznań, Poland, with a functional reporting line to the company’s global headquarters. In this position, you will transform complex data into actionable insights that support strategic decision-making and drive measurable business impact. You will also play an important role in fostering a data-driven culture and contribute to a strategic initiative focused on modernizing the organization’s data platform to ensure scalability and future readiness. Key Responsibilities Design and develop Power BI solutions, including datasets, star-schema models, DAX measures, and dashboards Deliver high-quality ad-hoc analyses and translate business needs into clear insights and recommendations Collaborate with global stakeholders, align on KPIs and definitions, and present findings to senior leadership Improve data quality, enhance transformation layers, and ensure consistency across reporting Automate recurring analyses and optimize processes for efficiency Perform advanced analytics such as segmentation, cohort analysis, and marketing effectiveness Enable self-service analytics by empowering business teams to leverage data independently Promote a data-driven mindset across the organization Contribute to a global data transformation initiative and the evolution of the analytics ecosystem Experience: 5+ years of experience in Business Analytics or Business Intelligence Strong hands-on experience with Power BI Technical Skills: Advanced SQL (BigQuery is a plus) Strong knowledge of DAX and data modeling Python for advanced analytics (preferred) Experience with cloud platforms (GCP or Azure), Databricks, and Git Familiarity with QlikView is a plus Analytical Expertise: Power BI development and dashboard design Data modeling (star schema, semantic layer optimization) Advanced analytics (segmentation, cohort analysis, marketing analytics) Process automation and optimization Soft Skills: Excellent data storytelling and communication skills Strong stakeholder management in a global environment Ability to prioritize and align business needs and KPIs Passion for promoting data-driven decision-making Experience supporting organizational change and adoption of new tools Strong presentation skills with the ability to influence decision-makers What you need to do now If you're interested in this role, click 'apply now' to forward an up-to-date copy of your CV, or call us now. Hays Poland sp. z o.o. is an employment agency registered in a registry kept by Marshal of the Mazowieckie Voivodeship under the number 361.

🏢 Summary: Long-term role in a global medical diagnostics project focused on building and scaling a Java-based test automation framework for a cloud-ready digital platform. The position involves developing UI test automation, integrating tools, and supporting CI/CD within a Scaled Agile environment. You will collaborate with cross-functional teams to enhance automation capabilities across multiple product teams. 🗂️ Requirements: Minimum 5 years of experience in test automation, Strong expertise in Java and OOP, Experience building test automation frameworks from scratch, Hands-on experience with Playwright or Selenium, Experience with TestNG or JUnit, Knowledge of SOLID, DRY, KISS principles, Understanding of design patterns (Decorator, Factory, Facade, Strategy, Builder), Experience with Maven and multi-module projects, Experience with surefire, failsafe, compile plugins, Experience integrating xRay, Allure, Sonar, PMD, Knowledge of GitHub and GitHub Actions, Experience in CI/CD automation, Experience in SAFe or Scaled Agile environments, Experience with refactoring and static code analysis 📃 Skills: Java, OOP, Playwright, Selenium, TestNG, JUnit, Maven, xRay, Allure, Sonar, PMD, GitHub, GitHubActions, CI/CD, SAFe, SOLID, DRY, KISS, Lombok, POJO 🏢 Description: About project: You will join a long-term, strategic initiative developing an advanced digital platform supporting clinical workflows in the area of medical diagnostics. The solution is built in a modern ecosystem and used globally by healthcare professionals. The environment is highly scalable, cloud‑ready, and developed in an international, cross‑functional setup. The team is currently expanding its test automation capabilities and implementing a large-scale automation framework supporting multiple product teams across several locations. Job Responsibilities Collaboration with cross-functional teams (BE, FE, QA, PO, SM) to design, implement, and scale test automation solutions,Development and enhancement of the Java-based test automation framework , Creating and maintaining UI automated tests using Playwright (and Selenium where applicable), Working within 2-week sprints in a Scaled Agile setup,Ensuring code quality through refactoring , use of design patterns , and static analysis tools,Integrating the automation framework with xRay, Allure, Jira , Developing CI/CD automation using GitHub Actions ,Supporting the shift-left testing approach across the organization. Expectations At least 5 years of experience in test automation , Strong expertise in Java , deep knowledge of OOP , and experience building test automation frameworks from scratch , Hands-on experience with Playwright (or Selenium ) and test frameworks such as TestNG or JUnit , Practical understanding of SOLID , DRY , KISS , encapsulation , and common design patterns (including Decorators , Factories , Facades , Strategy , Builder ), Experience with Maven , especially multi‑module projects and plugins such as surefire , failsafe , and compile , Experience integrating tools such as xRay , Allure , Sonar , PMD , Good knowledge of GitHub and GitHub Actions ,Familiarity with Lombok , POJO definitions , and refactoring best practices , Experience working in SAFe / Scaled Agile environments, Strong communication skills and ability to collaborate effectively in distributed teams, Nice to have: experience with Python for basic performance testing and familiarity with AI agents / GitHub Copilot . We Offer Ongoing support from a dedicated agent, taking care of your project continuity, client contact, necessary formalities, work comfort and development, Consultant Development Program - advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors, Access to 7N Learning & Development - a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events - technical, business, and lifestyle, Spectacular integration events, both for you (e.g., annual Kick-Off trip, Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres), Professional development not only during the project - you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients, Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years, A complete benefits package, including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad. About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sound familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our goal is to provide you with stable and comfortable cooperation, contributing to your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience in creating IT solutions for over 200 organizations.

🏢 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!