15745 English-speaking jobs in Warsaw

Experienced PKI Engineer needed to design, secure, and operate Public Key Infrastructure services in a global technology organization. Responsibilities include architecting and managing PKI components, implementing certificate automation, and supporting application integrations. Strong expertise in enterprise PKI operations, cryptography, and key management is required.

Customer Support Engineer needed for a global energy leader. Provide L2/L3 support for WAMS applications, servers, and infrastructure. Experience with WAMS software platforms (GE, Siemens, ABB), Linux/Windows servers, networking, and databases required.

AI Engineer with 3+ years of Python experience sought to develop scalable AI systems, including LLMs and GenAI. Responsibilities include transforming prototypes into production-ready solutions, building backend components, and ensuring code quality. Experience with backend frameworks (e.g., FastAPI), databases, Docker, Git, and cloud environments (AWS, GCP, Azure) is required. Optional experience with frontend frameworks and data science is a plus.

XTB is a global company from the financial industry, focusing on online trading of financial instruments. We are the largest FinTech in Poland and a leader in Central and Eastern Europe, and the range of our operations covers several countries, including Asia and South America.

About the role. You will: Implement and customize Guidewire core insurance system, working with alternative JVM language. Lead the design of IT solutions, taking into account architecture and its constraints. Serve as a reliable advisor and "sparring partner" for our clients. Independently lead a project team, ensuring the timely completion of tasks and maintaining high standards.

This means that you take responsibility for an integral part of the PAYBACK marketing platform in all four markets Germany, Austria, Poland and Italy. Your responsibilities: You assume technical responsibility in Python-based product audience management, including architecture, integration, testing, and operations.

Java Full-Stack Developer will design, develop, and maintain enterprise-level applications using Java and Angular/React.js. Responsibilities include building RESTful APIs, ensuring security compliance, and collaborating with global teams.

Senior Python Developer to build and maintain production-ready Python services and cloud-native components on Azure. Experience with Azure Functions, GenAI (LangChain/LangGraph), and LLM APIs required.

Senior Data Engineer will design and implement data systems for a Fortune 500 client in finance, loans, investments, and real estate. Responsibilities include building data platforms, pipelines, and tools using Python, Terraform, SQL, and AWS services. Requires 5+ years of experience in data engineering, expertise in Python and SQL, and experience with data warehouses (Snowflake).

As a Senior Business Systems Analyst , you will be working for our client, a leading player in the technology industry, dedicated to delivering innovative software solutions. Your expertise will support the analysis and documentation of business and system requirements, contributing directly to the development of complex IT environments and integrated solutions.

Pivotal role that supports the Institutional Fixed Income Electronic Trading Platform within Technical Operations to ensure that clients, dealers and internal teams have a seamless one touch customer experience. Working as part of a global team the team in London are exposed to incidents and problems that could be raised in Tokyo, London and the US.

About our TeamWe are dedicated to developing internal tools that automate manual testing processes for mobile devices. We empower our Quality Engineers by building diverse solutions across web, desktop, Android, and hardware platforms to ensure maximum testing efficiency.

Global Enterprise Architect for HR, HSE, and Communications needed to design and support IT solutions aligned with business goals. Develops IT policies, standards, and guidelines for application solutions and technologies. Supervises and facilitates the evaluation and selection of IT solutions.

Develop and execute global category strategies for software, SaaS, and IT services. Lead strategic sourcing processes, including market analysis, supplier identification, negotiation, and contract finalization. Negotiate complex software licensing and cloud service agreements with major vendors.

Freelance physics expert with Python skills needed to design problems, evaluate AI solutions, and validate calculations for leading tech companies.

Freelance mathematicians with Python expertise are sought to design, evaluate, and improve AI systems for leading tech companies.

Analyze large datasets to identify trends and correlations, develop KPIs, and translate data into actionable insights for leadership.

TD SYNNEX is seeking a Trainee/Intern to join their team.

Associate DevOps Engineer will support the development and maintenance of infrastructure on AWS, using tools like Terraform, Kubernetes, and Docker. Collaborate with team members on CI/CD pipelines, automated testing, and monitoring systems.

Learning Services Specialist with FRENCH required to contribute to solving the climate crisis and accelerating the energy transformation.