hr English-speaking jobs in Legionowo

Senior SAP ABAP Developer with 6+ years of experience in classical and object-oriented ABAP (7.40+), RAP, CDS, OData, SAP Fiori, and integration technologies.

IT Subject Matter Expert for Customs & Trade Compliance will support the rollout of a Global Customs Tool. The role involves collaborating with Service Architects, developing IT Customs Compliance strategies, and guiding the service team in application design and development.

Blazity seeks a Developer Community & Growth Lead to build and grow communities around open-source projects and AI initiatives. This role involves designing growth strategies, creating engaging content, and collaborating with engineers to translate technical work into developer-friendly communication. Strong understanding of the developer ecosystem, experience building online communities, and hands-on experience with AI tools are required.

Senior Technical Artist to join The Witcher 4 development team. Responsibilities include creating shaders, building tools, optimizing performance, and collaborating with the lighting team. Requires 3+ years of experience in real-time graphics, rendering, and shading, particularly with Unreal Engine. Proficiency in HLSL, GLSL, C++, and Unreal Engine is necessary.

Experienced Java Developer to build and maintain backend services using Java/Spring Boot. Apply AI tools for code optimization and automation. Design REST APIs in a microservices architecture.

Manages a team of sourcing professionals, providing guidance on negotiations, escalations, and performance targets. Develops and implements sourcing strategies, optimizes processes, and ensures project delivery. Requires 10+ years of procurement experience, 5+ years in a management role, and fluency in English. German is advantageous.

Leads and oversees the customer service team, ensuring alignment with organizational goals and delivering exceptional customer experiences. Develops and implements strategies to optimize team performance, streamline processes, and enhance customer satisfaction. Acts as a key liaison between departments, driving collaboration and continuous improvement.

Senior Software Engineer (Java) will design and implement technical integrations between LDS platform components and Simpl-Open middleware services. Responsibilities include designing APIs, connectors, and integration services, implementing participant onboarding workflows, and integrating authentication and authorization patterns.

Senior Payments Engineer will design, evolve, and strengthen Polar's payments and billing infrastructure. Responsibilities include subscription logic, pricing models, transaction flows, and risk controls. The role requires deep payments systems thinking, security- and compliance-aware engineering, and strong product judgment.

Senior Digital Strategy Planner will create and plan digital marketing campaigns for B2B clients, focusing on LinkedIn Ads. Responsibilities include researching customer behaviors, translating brand strategy into digital plans, and collaborating with teams to ensure campaign alignment. The ideal candidate has 3+ years of experience in digital marketing, strong analytical skills, and proficiency in digital advertising platforms.

Senior full-stack engineer to build and ship AI-first products. Expertise in TypeScript, React, Next.js, Node.js, and Postgres required. Strong UI/UX instincts and experience in high-autonomy environments essential.

Site Reliability Engineer with 5+ years of experience needed to maintain and improve a large-scale cloud platform. Responsibilities include ensuring high system availability, designing monitoring solutions, leading incident response, and automating operational tasks. Experience with Azure, Kubernetes, containerization, Infrastructure as Code, and monitoring tools is required. Strong English and Spanish/Portuguese language skills are essential.

Staff Software Engineer will design, build, and maintain Castle's detection platform. Experience with performance-sensitive production systems, Ruby, AWS, PostgreSQL, and Kafka is required.

Execute predefined MS SQL queries in QAS and production environments. Validate query results and document executed steps, results, and any issues encountered. Follow established change management and approval processes.

N-iX seeks a Middle Python (Django) Engineer to modernize a backend platform. The role involves framework upgrades, dependency updates, and codebase improvements. Experience with Python, Django, Django REST Framework, and testing is required.

Financial Analyst to deliver financial analysis, support budgeting and forecasting, and ensure accurate cost reporting for technology projects and programs.

Senior Game Designer to create engaging, visually rich, and technically robust casino games. 5+ years of experience in game design (preferably iGaming, slots, or real-money gaming) required. Strong understanding of game mechanics, player motivation, and engagement loops. Experience working with KPIs (retention, monetization, LTV, conversion) and RTP, volatility models, and math-driven design principles.

Build long-term customer relationships and uncover sales opportunities for a technology client. Cultivate existing relationships and identify business technology needs in a cloud-based environment.

Wildix seeks an experienced Salesforce Developer to design, develop, and maintain scalable solutions. Responsibilities include translating business requirements into technical solutions, building and maintaining Salesforce applications using Apex, Lightning Web Components, Flow, and Triggers, and ensuring smooth deployments. The ideal candidate has 3+ years of Salesforce development experience, knowledge of Apex, Lightning Components, Flow, and Triggers, and experience with Salesforce Sales Cloud, Experience Cloud, Service Cloud, or Marketing/Pardot.

Supports Senior User Acquisition Managers by handling manual campaign operations across multiple ad sources. Executes campaign setup, configuration, and optimization tasks. Assists with creative asset management and campaign organization. Progresses toward independent ad source management after initial training.