backend developer English-speaking jobs in Legionowo

Supports the Senior Contract Manager in leading IT contract reviews, verification, and compliance assurance for the Global Connectivity Services department. Assists with RFP processes, price negotiations, and contract administration. Collaborates with vendors, internal stakeholders, and ensures compliance with policies and regulations.

Develop and enhance the Cloud Foundation Portal using AWS, VueJS, and cloud-native services. Automate cloud resources with CDK, CloudFormation, and Terraform. Support implementation and integration activities across the project lifecycle with a focus on DevOps.

Secures AI-driven systems including LLM applications, machine learning models, and AI-enabled automation tools. Designs and implements security controls for AI/ML systems across development, training, and production. Identifies and mitigates AI-specific threats and integrates AI security checks into CI/CD pipelines.

Data Analyst will conduct analytical and consulting projects, collaborating with clients to analyze processes, gather requirements, and validate data sources and models. Requires a minimum of 1 year of experience as a Data Scientist/Data Analyst, proficiency in SQL, Pandas, Python, and Git, and strong communication skills.

Pharmalliance seeks experienced GMP professionals to join a global network of cGMP remediation experts. Network members support projects related to regulatory compliance challenges, including FDA Warning Letters, inspection observations, and cGMP remediation programs. Experts may specialize in areas such as Quality Assurance, Quality Control, Microbiology, Manufacturing, Validation, Data Integrity, or Utilities.

Financial Controller analyzes and controls Supply Chain operating costs, prepares management reports and KPIs, supports budgeting and forecasting, and identifies cost variances. Requires a higher education degree, minimum 3 years of experience in controlling or financial analysis, strong analytical skills, and advanced MS Excel knowledge.

Junior Analyst for the Tax Service Team responsible for executing tax operational activities, including VAT and CIT coding, managing SAP access, and providing support for tax projects. Requires a degree in finance, commerce, business, or tax, 1-2 years of experience in tax or accounting, and fluency in English.

Senior Quality Assurance Engineer to validate communication-centric security solutions across wireless and addressable portfolios. Responsibilities include RF testing, protocol testing, and supporting automation-based test solutions. Requires an engineering degree and experience in wireless systems validation, bus-based systems, or hardware testing.

Software Engineer to build and maintain solutions for the Health division. Develop applications that monitor the sale of regulated products. Work with a distributed team in a remote-first position.

Software Development Engineer to develop new features and improve existing solutions for EDA products. Requires proven experience with C++ 11/14/17 and a strong interest in algorithms and mathematics.

Experienced Java Developer needed for iLottery project. Develop applications using Java 17+, Spring Boot, and PostgreSQL. Ensure security, scalability, and performance of backend solutions. Experience with Docker, Kubernetes, Helm, Bash scripting, and CI/CD required. Strong English communication skills necessary.

Provides first-line technical support, troubleshoots hardware and software issues, manages user access, and ensures reliable IT operations.

Lead Data Analyst to build and manage a team, define KPIs, and translate player behavior into actionable insights. 5+ years of data analytics experience, strong SQL skills, and fluency in tools like Tableau, Looker, or Power BI required.

Senior Python Engineer to build backend systems and infrastructure for a global fintech project's machine learning platform. Responsibilities include designing and building production-grade Python services, developing real-time data pipelines, and improving developer experience. Requires strong Python experience, distributed systems knowledge, cloud and containerization skills, and experience with databases and data pipelines.

MS365 Consultant to lead the implementation of Microsoft Teams, SharePoint Online, and Viva Engage. Design, implement, and support solutions, including data migration and user training. Requires proven experience with MS365 implementations and strong communication skills in English and Polish.

Provides advanced technical support, troubleshooting hardware, software, and network issues. Analyzes logs, identifies root causes, and configures systems. Collaborates with internal teams and supports knowledge sharing.

White Hat Gaming seeks an experienced QA Engineer to design, execute, and maintain test plans for iGaming platforms. Responsibilities include API and microservices testing, database validation, and collaborating with development teams. Proven experience as a QA Engineer, API testing, and test automation frameworks are required.

Lead or Associate Financial Controller responsible for financial controlling and reporting for complex legal entities. Expertise in Danish GAAP and IFRS required.

The Vendor Manager is responsible for the evaluation, integration, oversight, and performance of vendors for clinical research and medical imaging services. This role involves vendor selection, performance monitoring, risk management, and process improvement. The successful candidate will have experience in vendor or project management within a CRO, Biotech, or Pharma organization.

Provide customer service to clients from Europe, advising on orders, delivery, and complaints. Manage orders, coordinate deliveries, and handle customer issues.