hr English-speaking jobs in Legionowo

Senior .NET Developer / Architect needed to design, develop, and implement travel search and booking flows using C#/.NET in a cloud-native architecture. Experience with GDS, NDC, and LCC APIs, as well as airline concepts and high-throughput systems is required.

Junior Accounts Payable Accountant needed to process invoices, ensure timely payments, and reconcile vendor statements. Requires fluency in Polish and English, German (B1/B2), and accounting experience.

Develop and execute the digital transformation strategy for senior programs. Lead change management initiatives within the Supply IT function. Facilitate all phases of program life cycles and develop program plans.

Software Security Engineer (Backend) will deliver production-ready code, mentor peers, and influence technical direction. Experience with Java 21, Spring Boot 3.x, GCP, and cloud-native architectures is required. Must have a GitHub portfolio and strong problem-solving skills.

Cloud Software Developer intern for 3 months in Kraków. Develop solutions, code, verify, and maintain 5G Packet Core products. Requires student status, cloud concepts understanding, programming skills (Python, Golang, C++), AI skills, Linux/bash scripting, Git, and English proficiency.

Mobile Developer with Flutter will design, develop, and maintain cross-platform mobile applications. Responsibilities include collaborating with teams, integrating with backend systems, and optimizing applications for performance. Requires a BS/BA degree, 3 years of Flutter/Dart experience, and 1+ year of native iOS or Android development experience. Fluency in English is required.

Build AI-powered product experiences for millions of users. Integrate AI tools into your development workflow and work across diverse stacks.

Supports the Enterprise Data Domain Lead team in ensuring effective operation of the firm's Data Domains. Responsibilities include overseeing the Data Domain Framework, managing CDE onboarding, defining governance requirements, and approving changes to Data Domains. Collaborates with teams to manage data quality and supports the design, management, and continuous improvement of EDDL processes.

Lead and support metrology projects focused on high-precision geometry and dimensional measurements. Design, develop, and implement measurement methods and systems for complex parts. Analyze measurement data and conduct Measurement System Analysis (MSA). Collaborate with cross-functional teams to define measurement strategies and improve process understanding.

Lead AI Engineer to design, implement, and scale AI-powered solutions within Palantir Foundry AIP. Responsibilities include building RAG pipelines, LLM-powered applications, and NLP workflows. Collaborate with stakeholders and engineers to deliver AI solutions, ensuring scalability, quality, and cost-effectiveness.

Build AI-powered infrastructure for VC and PE firms, including agentic AI systems, full-stack applications, and data platform engineering. Translate business needs into technical solutions and own delivery end-to-end. Must have experience shipping production AI/LLM systems and proficiency in an AI-native coding workflow.

Junior Sales Business Developer will reach out to potential clients, assess suitability for Handelot's Partner network, and explain the value of the platform. The role involves handling both inbound and outbound leads primarily in English, covering Europe, Asia, and America.

Technical Project Coordinator with fluent German (C1 or higher) to support global client implementations. Manages client expectations, coordinates deliverables, and ensures projects stay on track. Experience in digital workplace migration projects, including M365, ITAM, Endpoint Management, and Security is required. Strong communication, analytical, and problem-solving skills are essential.

QA Engineer to join an Agile team ensuring high-quality software delivery across web platforms. Responsibilities include manual and automated testing, test case creation, and contributing to test automation development (Playwright/Python). Experience with API testing (Postman), CI/CD testing processes (GitLab CI), and AI testing tools is required.

Execute test plans, analyze results, and present findings to highlight product benefits. Support project management by collecting information, tracking progress, and collaborating with R&D. Validate product quality in operator networks through manual and automated testing. Coordinate debugging efforts, interface with customers, and ensure timely resolution of issues.

Experienced MicroStrategy Specialist needed to support and evolve an existing on-premises BI platform. Focus on hands-on MicroStrategy expertise, data flows, SQL, and data warehouses. Contribute to platform transition discussions and collaborate with teams to translate business needs into BI solutions.

Supports delivery of digital or transformation projects by managing activities, timelines, and deliverables. Tracks progress, risks, and issues. Collaborates with stakeholders and vendors.

Senior Quality Engineer will design, execute, and optimize automated tests across various levels (functional, integration, contract, performance, and load). Experience with JavaScript/Typescript automation, API testing (Rest API), Playwright, and cloud platforms (preferably AWS) is required.

Leads a team of recruiters/administrators in various aspects of people management, coaching, and mentoring. Responsible for planning and executing campus recruitment activities, managing stakeholder relationships, and overseeing team performance and development. Ensures recruitment services are delivered in line with contractual obligations and client service level agreements. Collaborates with hiring managers, campus recruitment team, and internal stakeholders to achieve recruitment goals.

Java Engineer to design, develop, and test software for avionics systems. Requires experience with Java, object-oriented design, and containerization technologies. Must be comfortable working in international teams and have strong English skills.