31 English-speaking jobs in Białystok
Senior Software Engineer (C#, Python, Java or Go)
- Relativity
- białystok
- July 26
Senior Software Engineer focusing on designing and maintaining software to improve platform reliability, observability, and scalability. Requires 5+ years in software engineering with skills in Python, Go, Java, or C#, and experience with cloud-native systems.
Senior Data Engineer - financial industry (f/m/x)
- Sii Poland
- białystok
- July 26
Senior Data Engineer to build a modern data platform using Databricks and Azure. Responsibilities include designing scalable data solutions, optimizing ETL/ELT pipelines, and integrating data from various sources. Requires 5+ years of experience with Python, PySpark, and Databricks.
Data Analytics Manager
- NATEK POLAND
- Białystok
- July 20
Senior .NET WPF Developer (f/m/x)
- Sii Poland
- białystok
- July 20
Senior .NET WPF Developer to join a team developing a Windows 11 desktop application for medical technology. Responsibilities include designing, implementing, and testing new features, collaborating on documentation, and supporting application deployment. Requires 5+ years of experience with .NET, C#, WPF, and MVVM.
Power Platform Governance Lead f m x - Białystok
- Sii
- białystok
- July 20
Experienced Power Platform Governance Lead needed to define and enforce governance policies, manage platform environments, and ensure compliance with security and regulatory standards.
Cybersecurity Engineer f m x - Białystok
- Sii
- białystok
- July 20
Cybersecurity Engineer to ensure product cybersecurity compliance across the development lifecycle. Responsibilities include defining cybersecurity plans, conducting threat analysis, and ensuring adherence to standards like ISO/SAE 21434.
C# Developer – Firmware & Hardware Interfaces (f/m/x) - Białystok
- Sii Sp. z o.o.
- białystok
- July 19
Experienced C# Developer needed for an innovative AI-driven investment technology project. Develop and maintain C# applications interacting with hardware components and low-level systems. Design and implement interfaces for communication with machine control layers and embedded components. Collaborate with distributed teams in an Agile environment using CI/CD pipelines. Minimum 5 years of experience as a C# Developer or in a similar role required. Hands-on experience with low-level or machine-oriented development and hardware interaction is essential. Strong knowledge of firmware interfacing and control layer communication is needed. Practical experience with Agile methodologies and CI/CD processes (GitHub/GitLab) is required. English proficiency at min. B2 level is necessary.
Pentester WebAPP and API - Białystok
- Link Group
- białystok
- July 19
Lead and execute penetration tests across web applications, APIs, mobile apps, cloud environments, and networks. Perform Active Directory security testing and develop custom exploits using Python, PowerShell, and Bash. Manage end-to-end engagements and provide technical input during scoping calls and proposal creation.
Senior Full Stack Developer - Białystok
- EBRAND
- białystok
- July 19
Senior Full Stack Developer will design, develop, and maintain web automation solutions. Responsibilities include building browser-based automation systems, analyzing web applications, and collaborating with teams to deliver new platform capabilities. Requires knowledge of PHP, Python, JavaScript or TypeScript, and experience with Playwright, Puppeteer, or Selenium.
Senior Technical Project Manager (f/m/x)
- Sii Sp. z o.o.
- Białystok
- July 16
Senior Technical Project Manager to deliver physical IT infrastructure for retail, workplace, and office environments. Manage Meraki network deployments, vendor coordination, and project scope, timeline, and budget. Requires 5+ years of project management experience in similar environments and fluency in English.
Senior Data Migration Engineer (f/m/x)
- Sii Sp. z o.o.
- Białystok
- July 15
Senior Data Migration Engineer to lead SQL Server to Snowflake migrations for a global tobacco client. Responsibilities include designing Matillion ELT pipelines, automating data validation, and leveraging AI for code conversion. Requires 5+ years of experience with SQL Server, Snowflake, Python, and AI coding assistants.
AI Engineer – LLM / Agentic Systems (f/m/x)
- Sii Sp. z o.o.
- Białystok
- July 14
Design and develop production-ready AI systems based on LLMs and agent-based workflows. Build and maintain data pipelines for retrieval, orchestration, and evaluation. Implement solutions using frameworks such as LangChain, LangGraph, LlamaIndex, or custom approaches.
Functional Safety Engineer (f/m/x)
- Sii
- białystok
- July 13
Functional Safety Engineer to ensure compliance with ISO 26262 and related standards across the product lifecycle. Tasks include creating documentation, conducting hazard analysis, performing safety analyses, and collaborating with cross-functional teams. Requires 5+ years of experience in automotive electronics and proficiency in safety analysis methods.
Senior Data Engineer (Spark)
- Addepto
- Białystok
- July 11
Senior Data Engineer to develop and maintain a high-performance data processing platform for automotive data. Responsibilities include designing and implementing data pipelines, optimizing data workflows, and collaborating with cross-functional teams. Requires 5+ years of experience with Big Data technologies (Spark, Cloudera, Kafka, Airflow, NiFi, Docker, Iceberg), strong Python (or Java/Scala) skills, and experience in cloud environments.
Data Engineer (Spark)
- Addepto
- Białystok
- July 11
Develop and maintain high-performance data processing platforms using Spark, Cloudera, Airflow, and Iceberg. Design and implement data pipelines for automotive, aerospace, and telecommunications projects. Collaborate with teams to understand data requirements and ensure seamless integration.
Senior AI Engineer (Python, LLMs)
- Addepto
- Białystok
- July 10
Senior AI Engineer with 5+ years of Python experience sought to develop scalable AI systems, including LLMs and Generative AI. Responsibilities include transforming Data Science 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.
Lead UX Engineer
- Relativity
- białystok
- July 10
UX Engineer will design, build, and refine React-based user interfaces for RelativityOne, focusing on usability, accessibility, responsiveness, and consistency. Collaborate with designers, product managers, and engineers to create intuitive user experiences. Contribute reusable patterns and advocate for accessibility and experience quality throughout the product development lifecycle.
Senior Consultant
- Sollers Consulting
- Białystok
- July 8
Senior Consultant for IT projects in financial institutions, primarily insurance. Lead Agile implementations, define functional requirements, and mentor teams. Requires 5+ years in financial IT projects and strong English skills.
Databricks Partner Development Manager
- Addepto
- Białystok
- July 8
Develop and manage strategic alliances with Databricks, including pipeline, bookings, certifications, and GTM objectives. Drive co-sell revenue, partner-sourced pipeline, and ecosystem growth exceeding $10M+ annually.
Salesforce Developer
- Sollers Consulting
- Białystok
- July 7
Implement and customize Salesforce solutions for insurers and banks. Configure, integrate, and customize Salesforce software to meet client needs. Create, design, and implement state-of-the-art solutions.






















































