492 English-speaking jobs in Łódź

Senior Typescript Engineer will develop and maintain Ledger Live, a blockchain asset management application. Responsibilities include building UI flows, collaborating with developers and hardware engineers, and ensuring a reliable and user-friendly experience across web and mobile platforms.

Lead Linux System Administrator for large-scale GPU infrastructure. Manage Linux server lifecycle, NVIDIA GPU software stack, and team of administrators. Requires 7+ years Linux administration experience, 3+ years in a lead role, and expertise in Ansible, Terraform, and scripting.

Site Operations Manager will lead day-to-day operations of a high-density data center supporting GPU infrastructure. Responsibilities include managing on-site teams, ensuring operational continuity, and overseeing critical facility infrastructure. Requires 8 years of experience in data center operations, at least 4 years in a people management role, and strong technical knowledge of data center infrastructure.

Lead DevOps Engineer to provide technical leadership for DevOps and Site Reliability Engineering practices supporting large-scale GPU infrastructure. Responsibilities include leading a team, designing and implementing Infrastructure as Code solutions, building CI/CD pipelines, and improving platform reliability. Requires 8+ years of experience in DevOps, SRE, or Platform Engineering with strong experience in infrastructure automation, Kubernetes, and GPU-related technologies.

Senior .NET developer to build, maintain, and support a web-based self-service portal for the financial services industry. Responsibilities include developing new features, ensuring reliability, investigating incidents, and collaborating on CI/CD pipelines. Requires experience with ASP.NET Core, Azure services, and Azure DevOps.

Senior Penetration Tester to conduct advanced security assessments of applications, systems, and infrastructure. Responsibilities include identifying vulnerabilities, developing attack scenarios, and collaborating with technical and business teams. Requires 5+ years of experience in penetration testing with expertise in web, mobile, and infrastructure security.

Senior .NET developer to design, build, and maintain secure, scalable backend solutions within an Azure cloud environment. Experience with REST APIs, OpenAPI, EF Core, SQL Server, and Azure services is required.

Data Engineer Architect to design, build, and maintain a scalable enterprise data platform using Databricks. Requires 8+ years of data engineering experience, 4+ years with Databricks, and expertise in Python, SQL, and cloud platforms (Azure, AWS, or GCP).

Senior Software Engineer will design, implement, and maintain backend services and APIs using Python or Kotlin within Affirm's microservice and event-driven architecture. Collaborate with stakeholders across North America and Europe to build scalable fraud tooling and infrastructure.

Senior Project Manager to lead and manage IT and Cyber Security projects, focusing on Identity and Access Management (IAM). Experience in managing IT and security projects, supplier management, and PAM is required.

Fullstack Developer specializing in Java 17, Spring Boot, and React. Designs, develops, and tests full-stack applications, including backend, frontend, and data access layers. Collaborates with business teams and participates in Agile development. Requires 8+ years Java experience and 5+ years experience with React, Spring Boot, and JPA.

Senior Java Developer needed for a greenfield project. Design and build a backend platform using Java, Spring Boot, and REST APIs. 8+ years of Java, Spring Boot, and JPA experience required.

Senior IT Analyst needed to design, build, and rebuild data platforms. Requires 10+ years of experience in data analysis, solution design, and IT delivery within complex enterprise environments. Strong SQL skills and experience with Hive are essential. Must be able to bridge business needs and development teams.

Senior Software Development Engineer in Test with 5+ years of Python, database, and Git experience. Expertise in Robot Framework, CI/CD tools, and test automation. Strong analytical and communication skills.

Senior Data Engineer needed to build and maintain Big data processing pipelines using Spark and Scala. Requires 5+ years of experience with Spark, Scala, Python, and Linux environments. Proven track record of designing data flows and experience with Hadoop ecosystem components.

Senior QA Automation Engineer sought for talent pool. Must have proven experience building and maintaining automation frameworks, proficiency in Selenium and Playwright, and strong coding skills in .NET or JavaScript/TypeScript. Manual testing, API and database testing, performance testing, and excellent communication skills are also required.

Senior UX UI Designer sought for a talent pool. Must have 5+ years experience, strong portfolio, excellent communication skills, and proficiency in Figma. Experience with user research, journey mapping, and AI tools is preferred. Must be fluent in English (C1 level).

Senior Fullstack Developer sought for a talent pool. Must have 5+ years experience in .NET / Python / Node.js (Backend) and React / Angular (Frontend). Strong debugging, unit testing, and communication skills required. Fluent English (B2) and experience with agile methodology are essential.

Build and scale AI infrastructure features end-to-end in Next.js. Design, develop APIs, services, and integrations. Shape platform architecture and product direction.

Senior Business Analyst to join IT projects for financial institutions, primarily insurance companies. Conduct complex business analysis, define functional requirements, and test solutions. Collaborate with developers and IT architects.