125 English-speaking jobs in Białystok

Senior Full-Stack Engineer needed for a full-time position. Develop and maintain web and mobile applications using C#, React, and other technologies. Collaborate with product owners and team members to design, code, test, and deploy software. 7+ years of experience designing and building scalable applications required.

Senior Software Engineer needed for full-time position. Requires strong Java backend development experience, API building and integration, and experience with Kafka, relational and NoSQL databases. Responsibilities include client and partner migrations, codebase transitions, and system integrations.

Svitla Systems Inc. seeks a Detection and SOAR Security Lead/Operations Integration Consultant to secure SaaS and enterprise security environments. The role requires expertise in deploying and supporting security solutions, including data loss prevention, session controls, access controls, and SaaS monitoring. Experience with Microsoft Sentinel SIEM, SOAR features, and Arctic Wolf is preferred. The consultant will design, optimize, and document data storage solutions, collaborate with technical leads, and mentor engineers.

Senior Node.js Developer sought for contract work. Design, implement, and maintain high-quality Node.js applications. Collaborate with teams, review code, and participate in technical discussions. Requires 5+ years of experience with Node.js, frameworks like Express.js or NestJS, and experience with RESTful APIs, databases, and cloud environments.

Senior Java Developer sought for a B2B Framework Agreement. Design, implement, and maintain Java applications, collaborating with teams and contributing to architecture decisions. 5+ years of experience as a Java developer with exposure to Spring Boot, Hibernate, or similar frameworks is required.

Senior Frontend Developer (Angular) needed for a software house. Design, implement, and maintain high-quality frontend applications using Angular. Collaborate with cross-functional teams and contribute to frontend architecture decisions. 5+ years of experience as a Frontend Developer with strong Angular (2) expertise required.

Senior Frontend Developer (React) needed for a software house. Design, implement, and maintain high-quality frontend applications using React. Collaborate with cross-functional teams and contribute to frontend architecture decisions. 5+ years of experience as a Frontend Developer with strong React expertise required.

Senior .NET Developer sought for contract work. Design, implement, and maintain .NET applications. Collaborate with teams, review code, and participate in technical discussions. Requires 5+ years of experience with C#/.NET, .NET Core, ASP.NET Core, and related frameworks. Strong understanding of object-oriented programming, design patterns, and clean code principles. Experience with RESTful APIs, SQL and NoSQL databases, cloud environments, CI/CD pipelines, and version control systems. Fluent English and experience in Agile/Scrum teams.

Senior Angular Frontend Developer needed for product launch preparations. Support development across multiple projects, contribute to CI/CD setup, and collaborate with QA. 5+ years of Angular experience, GitHub Actions, and AWS required.

Leads the design, integration, and governance of Operational Technology (OT) systems across a modern utilities environment. Focuses on secure SCADA, telemetry, and industrial automation platforms, ensuring seamless interoperability with enterprise IT, ERP, and cloud ecosystems.

We are seeking a Regular or Senior .NET Web Developer to design, develop, and maintain web applications, APIs, and services using C# and .NET.

We are seeking a Regular or Senior .NET Desktop Developer to design, develop, and maintain desktop applications using C# and .NET.

Design Engineer Business Analyst with 8+ years of Creo Parametric and SOLIDWORKS experience. Leads CAD system transitions, implements PLM systems, and provides technical support. Requires strong communication and project collaboration skills.

Senior Python Developer needed for scalable backend services and platform components. 5+ years of experience in software development, strong Python skills, and knowledge of data manipulation libraries required. Experience with cloud environments, container orchestration, and FastAPI is beneficial.

Senior .NET Fullstack Developer to develop and maintain web applications using ASP.NET, APIs, and Azure Services. Requires C#, .NET, SQL databases, and Angular experience.

Experienced Product Owner with a cybersecurity background needed to drive product development. Translate security requirements into product features, manage the backlog, and collaborate with engineering, product management, and security teams.

Lead Software Engineer will design, develop, and mentor engineers on core backend systems. Responsibilities include leading technical projects, driving architectural direction, and ensuring technical excellence. Requires backend engineering experience with Java, system architecture, and distributed systems.

Lead Python Engineer to design, develop, and maintain scalable finance-focused backend solutions using Python. Integrate external systems and APIs, lead a team of engineers, and write high-quality, well-tested code. Must have 9 years of commercial experience, 2 years in a Lead Engineer role, and strong Python skills.

Senior Product Owner with 5+ years experience in software delivery, actively using AI tools in professional workflows. Manages requirements end-to-end, prioritizes backlogs, and collaborates with engineering and design teams. Designs AI agent workflows for BA/PO tasks and validates agent output. Strong structured writing and client-facing delivery experience required.

Senior Python Engineer needed for a large-scale utility service platform transforming the global energy industry. Design, develop, and maintain scalable finance-focused backend solutions using Python and Django. Integrate external systems and APIs, write high-quality code, and participate in peer reviews. Must have strong Python engineering skills, experience with Django, API development, and automated testing. AWS experience is required.