hr English-speaking jobs in Legionowo

Senior SAP consultant to strengthen access rights modernization initiatives, support new SAP implementations, and ensure identity management governance. Requires 7+ years of experience in SAP authorizations management, including role design and project work. Must have in-depth technical understanding of SAP authorization management practices across various modules, systems, and products.

Adwisen seeks a Key Account Manager / Senior Search Specialist to expand its global customer base. This role involves prospecting, developing relationships, and managing the sales process for international companies.

Designs, develops, and operates automation solutions based on Red Hat Ansible Automation Platform. Automates complex IT processes, improves service reliability, and increases operational efficiency.

Lead a team of engineers in building and maintaining backend systems using .NET, PostgreSQL, and Redis. Experience with React, API design, CI/CD, and AWS is required. Strong Python skills and experience running production systems are essential.

Full-stack Software Engineer to develop software applications using Node.js, Nest.js, React, and PostgreSQL. Responsibilities include designing, implementing, and testing applications while adhering to WCAG standards and OWASP guidelines. Requires fluency in Polish and English.

Defines architectural standards and blueprints for hybrid cloud and on-premise data platforms. Leads the design and integration of Spark-based analytics, Kubernetes-orchestrated workloads, and GCP services. Collaborates with engineering and business teams on data analytics platform initiatives.

Senior Backend Engineer to build and maintain production-grade APIs and distributed systems. Experience with Java, Scala, Apache Spark or Flink, Cassandra, PostgreSQL, and Docker/Kubernetes required.

Design, implement, and optimize AWS cloud solutions. Develop reusable, secure, and scalable AWS products. Automate cloud infrastructure provisioning using Terraform, AWS AFT, or CloudFormation. Integrate CI/CD pipelines and GitOps workflows with GitHub Actions. Manage and automate operations with SSM, Ansible, or similar tools.

Database Administrator will ensure database reliability, performance, and scalability. Responsibilities include building automations, supporting developers, and using Terraform for change management. The team utilizes MySQL, PostgreSQL, Elasticsearch, Cassandra, Redis, AWS, Go, Python, Kubernetes, Linux, and Node.js.

Senior Java Engineer to join a cross-functional team developing a modern PropTech and InsureTech platform. Responsibilities include designing, developing, and maintaining Java-based applications, collaborating with teams, providing technical guidance, and evaluating new technologies. Requires a Bachelor's or Master's degree in Computer Science, strong knowledge of Hibernate, SQL, PostgreSQL, and AWS cloud services, experience with microservices architecture, and a deep understanding of clean code principles. Familiarity with MongoDB, Stripe, and design patterns is advantageous.

Software Engineer to develop, maintain, and improve Elixir (Phoenix) applications. Design and optimize PostgreSQL schemas in high-traffic environments. Collaborate on new features, code quality, and platform performance. Contribute to infrastructure management and optimization on AWS and Kubernetes.

Manages the CE UX & CRO project roadmap, leading end-to-end delivery of UX initiatives. Establishes project governance, leverages data and analytics tools, and ensures technical feasibility. Requires proven project management, UX, and communication skills.

Junior PMO professional fluent in German and English needed to support project delivery and modernization. Responsibilities include synthesizing information, building project trackers, creating reports, and supporting project managers. Experience with Jira, Confluence, MS Project, data visualization, and AI is a plus.

Supports ingest, organization, tracking, and quality control of digital assets. Collaborates with producers, editors, and engineers to ensure smooth data operations and high data integrity.

Design and develop algorithms for a modern bird monitoring and protection system using C++, OpenCV, and Machine Learning. Collaborate with a multidisciplinary team on scientific publications and patent activities.

Senior Java Developer to design and implement backend systems using Java and modern frameworks. Experience with Spring Boot, Spring MVC, JPA/Hibernate, microservices, and REST/SOAP APIs required.

Senior Data Scientist with 7+ years of experience in ad-tech, specializing in DSPs, programmatic advertising, and CTV measurement. Expertise in developing and deploying models for bidder optimization and attribution/measurement. Strong command of Python, SQL, and advanced statistical and machine learning techniques. Fluent in upper-intermediate English.

Senior Test Automation Developer with 5+ years of experience in test automation using C#, .NET, and Azure DevOps. Experience with Selenium, Playwright, and API testing required. Must have strong SQL skills and experience with integration testing.

Data Engineer to architect and own the end-to-end reporting lifecycle for a diamond matching project. Transform raw Python application data into a high-performance analytics layer. Bridge backend data structures and business-ready visualizations.

Supports, maintains, and develops SuccessFactors inbound and outbound integrations. Provides solutions to ensure seamless application performance. Requires 2-3 years of experience with SuccessFactors integrations and strong hands-on experience with the Employee Central module. Fluent in English.