17161 English-speaking jobs in Masovian Voivodeship

Java Developer for an international financial systems project. Develop backend services, integrations, and ensure code quality. Minimum 5 years Java experience (Spring, microservices, integrations), MongoDB, AWS, and Agile/DevOps.

Infrastructure Administrator oversees and maintains client infrastructure in on-premises and cloud environments. Responsibilities include infrastructure development, migration projects, and collaboration with providers and other IT professionals. Requires strong Windows Server knowledge, virtualization experience, and backup/monitoring solutions familiarity. Fluency in English is required, German is a plus.

Backend Engineer to design, develop, and implement software for an IIoT platform using Java and cloud technologies (Microsoft Azure). Experience with agile software development, container-based architectures, and microservices is required. Fluency in English is essential.

Delivers secure code scanning service, providing expertise on application code quality improvements. Identifies security vulnerabilities, analyzes code, reviews pull requests, and provides remediation guidance. Collaborates with development teams and vendor partners to ensure secure application delivery.

Senior Backend Engineer to design and implement core backend services (Kotlin/Java, Spring Boot) for a healthcare orchestration platform. Responsibilities include building durable workflow execution, implementing governance primitives, and ensuring platform reliability. Requires 7-10+ years of backend/platform engineering experience with Kotlin/Java and Spring Boot.

Senior QA Engineer will collaborate with Product Managers to refine requirements and ensure quality throughout the development lifecycle. Responsibilities include designing tests, building automation tools, and validating new features.

Senior Full Stack Engineer to design and implement complex financial systems in Rust and React. Lead technical direction, mentor engineers, and build critical components. Expert-level engineering experience with systems programming, web frameworks, and blockchain primitives required.

Quantitative Consultant will contribute to data mining, predictive modeling, and Monte Carlo simulations. Review credit rating and scoring models and provide quantitative support to business and R&D initiatives. Collaborate with multidisciplinary teams to apply modeling techniques to real-world problems.

Software Engineer (COBOL) will write and design code for complex banking solutions, participate in agile development, and collaborate with teams across BEC.

Senior Analyst will deliver data-driven insights to clients, analyzing, organizing, and presenting data reports. Responsibilities include data validation, report generation, and client communication. Requires strong analytical skills, proficiency in SQL, R, or Python, and experience in a data-driven environment.

Designs, develops, and analyzes aircraft components. Performs structural analysis, simulations, and recommendations. Supports prototype build, testing, and documentation. Requires a degree in Mechanical Engineering and experience with FEA software and CAD packages.

Senior Client Solutions Specialist will manage a portfolio of multinational clients, advising on Mercer products and services across Europe and Africa. Responsibilities include supporting client participation in salary surveys, providing product information, and managing client queries. Requires 2-3 years of customer service experience, strong English skills, and proficiency in Excel. Knowledge of additional languages and experience in market research, HR, or Compensation & Benefits is beneficial.

QA Engineer will design, execute manual API tests, and contribute to API automation using JavaScript/TypeScript. Experience with REST/GraphQL and Postman is required.

Backend Software Engineer (Mid or Senior) to implement microservices in Go, optimize data models, and participate in CI/CD improvements.

Lead a one-time HubSpot implementation across CRM, Marketing, Sales, Service, and Ops Hubs. Design data models, configure automations, and integrate with existing systems. Deliver a production-ready HubSpot environment with documentation and handoff.

IT&D Manager, Budget Governance will support financial planning, analysis, and reporting for the IT&D organization. This role contributes to governing the IT&D budget and defines financial planning and governance processes.

Conduct penetration testing on web applications, networking components, and crypto services. Design and create solutions for complex security issues. Collaborate with developers to validate, assess, and mitigate vulnerabilities.

Security Engineer will conduct penetration testing on web applications, networking components, and crypto services. Responsibilities include designing security solutions, developing automation tools, and collaborating with developers to mitigate vulnerabilities. Requires experience in application security assessments, security scanners, and code audits.

Senior QA Automation Engineer to design, build, and maintain automation frameworks for mission-critical backend systems using Java and Ruby on Rails. Responsibilities include API and backend testing, system quality assurance, and pipeline integration. Requires strong Java and Ruby on Rails experience, API testing expertise, and knowledge of asynchronous systems and DevOps practices.

Senior AI Platform Engineer to design, implement, and maintain secure and scalable AI agent infrastructure on Google Cloud using Vertex AI. Responsibilities include security, CI/CD automation, and model governance. Requires strong Python skills, cloud AI/ML experience, and enterprise security knowledge.