hr English-speaking jobs in Legionowo

Senior Backend Engineer to lead a migration from a monolithic database to Google Cloud Platform data stores. Will design and implement data operations using Datastream and Dataflow in Kotlin or Java. Requires 6+ years of experience and expertise in data migration.

Financial Controller with German fluency required for national and international entities. Responsibilities include financial controlling, performance monitoring, cost analysis, and providing financial assessments. Requires a university degree in a relevant field, 3 years of experience in Financial Controlling and/or Business Analysis, and knowledge of IFRS.

Fullstack Developer for a biotechnology client. Requires 4+ years experience in a similar role, a Bachelor's or Master's degree in Computer Science or a related field, and hands-on experience with Sinequa or similar enterprise search platforms. Must be proficient in a programming language such as Angular, Python, .NET, or Java and have experience with data integration tools and techniques. Fluent English required.

Senior Software Engineer will design, build, and deploy high-quality software in cloud environments. Experience with Node.js + TypeScript for backend, React.js for frontend, and GCP is required.

Senior Software Engineer, QA will ensure the quality, reliability, and scalability of blockchain products through testing strategies, automation, and continuous improvement of QA processes. Responsibilities include executing and managing test cases, identifying and documenting bugs, designing and executing automation scripts, and staying up-to-date with new testing tools and strategies.

Senior Software Engineer to design, develop, and deploy large-scale software systems using C++. Collaborate with teams to implement new features and technologies. Experience with distributed systems and capacity planning required.

Designs, implements, and maintains JavaScript/TypeScript applications. Optimizes solutions and application performance. Collaborates with IT and business stakeholders.

Machine Learning Engineer will join a team working on international aviation projects. Responsibilities include setting up and maintaining ML systems, implementing workflow orchestration, and designing model deployment strategies.

Supports end-to-end accounting processes within an international environment. Manages daily cash and banking operations, including bank statements, payments, and account reconciliations. Handles treasury-related activities such as cash movements, liquidity support, FX postings, and reporting.

Operational support role focused on platform stability and user support. Ensuring platform performance and stability, providing strong customer support. Experience with Apache Kafka or similar event-streaming platforms required.

POS/Retail Systems Engineer to support, maintain, and enhance Point of Sale (POS) solutions in a multi-brand retail environment. Experience with Front Systems POS or comparable platforms, integrating POS with eCommerce, ERP, and CRM systems, and providing L2/L3 support for business-critical retail systems is required.

Software Quality Assurance (SQA) Engineer will design, prepare, and implement test strategies and scenarios. Responsibilities include reviewing test cases, conducting testing and defect status meetings, and collaborating with business and development teams to resolve quality issues.

The SAP Sales & Logistics Senior Consultant provides 2nd level support for SAP SD, LE, and WM processes. Analyzes business requirements and translates them into sustainable SAP solutions. Configures, tests, and implements SAP solutions in line with central ERP standards. Supports the standardization and harmonization of business processes and SAP solutions across the group.

Senior AI Engineer will design and deliver end-to-end AI and agentic systems based on Large Language Models, RAG architectures, and cloud platforms. Responsibilities include designing agent architectures, integrating LLMs, developing RAG solutions, and evaluating AI system performance. Strong experience with AI/ML systems, cloud platforms (especially Microsoft Azure), and programming languages (Python and/or Java) is required. Experience with SAP is a plus.

Senior Software Engineer will design, develop, and maintain a user-facing networking application. Responsibilities include architecting microservices, standardizing continuous integration, and collaborating with product owners. Requires proficiency in Python, Kubernetes, PostgreSQL, Linux, and security concepts. Experience with Google Cloud Platform, AI, and proxy clients is a plus.

Netguru seeks a Polish-speaking Frontend Developer for a 6-month full-time project starting June 12, 2026. The role requires proficiency in ClojureScript, re-frame, Reagent, EDN, Transit, and React rendering optimization.

The General Manager will develop and implement Breezy's growth strategy for Poland, achieve financial targets, build client and partner relationships, and lead a team. Requires 5+ years of experience in a similar role in the Consumer Electronics industry, expertise in Polish regulations and financial reporting, and fluency in Polish and English.

Experienced Staff Software Engineer to design, build, and scale integrations and data platform infrastructure. Requires 8+ years of experience in software development, integrations, data pipelines, and API design. Responsibilities include developing partner integrations, improving data quality, and mentoring other engineers.

Senior Full Stack Engineer to design and develop scalable cloud-based platform using Node.js, TypeScript, React, and Next.js. Experience with event-driven architectures, APIs, and databases (SQL/NoSQL) required.

Our API-first, headless Saa S platform supports over 300 brands in delivering localized, high-performance shopping experiences across 120+ countries. Backed by a 50 million SEK investment from the H&M Group, we power leading names like COS, ARKET, & Other Stories, Weekday, Nudie Jeans, and Paul Smith. You will build and own the data backbone of our new Data & Insights module.