76 English-speaking jobs in Białystok

Join Sii and play a key role in delivering enterprise-class data platforms to international clients. As a Firmware Engineer, you will be responsible for low-level firmware development, hardware bring-up, and system optimization. You will collaborate with cross-functional teams and support strategic data and analytics initiatives across the organization.

Senior Backend/Data Engineer builds end-to-end solutions for greenfield data platforms. Focus includes data ingestion from APIs/files, data processing, and building REST APIs using Python/Django. Requires 4+ years experience.

Senior Data Engineer/Tech Lead focused on building scalable data pipelines and modern processing solutions. Role combines 70% hands-on engineering with 30% technical leadership, requiring Spark, Python, SQL, and architectural input.

Kotlin Developer needed to build and maintain scalable microservices for a fintech platform. Requires 5+ years of experience with Kotlin, AWS, and Kubernetes. Proficiency in PostgreSQL and strong English skills are required.

Senior .NET Developer to build and maintain financially related applications using .NET 6.0 and Azure. Responsibilities include SQL Server work, AI tool usage, and infrastructure development. Requires C1 English and strong C# knowledge.

Senior Python Developer needed to design, optimize, and maintain backend data workflows for a health insurance company. Requires advanced Python, strong SQL, and over one year of React experience. Must ensure compliance with healthcare regulations.

Senior Data Engineer for the pharmaceutical sector. Design and maintain scalable data solutions using Python, AWS (Glue, Athena, DynamoDB), and Pandas. Requires 5+ years of experience and strong English.

Experienced Data Scientist with ML needed to build and optimize predictive models. Requires 5+ years experience, strong SQL, and Python proficiency for analyzing consumer and marketing data.

Senior Java Developer needed for software development and maintenance of customized solutions for a public sector client. Requires 6+ years in Java, Spring, microservices, and experience with PostgreSQL and REST/SOAP integrations.

Administer and configure Clarity PPM, managing user accounts, access rights, and time-reporting data synchronization with SAP. Troubleshoot issues, create documentation, and train users. Requires hands-on experience and B2 English.

Design, deploy, and operate enterprise-grade OpenStack environments as part of the Cloudboostr platform. Build and maintain automated infrastructure provisioning pipelines using Terraform and Ansible. Ensure high availability and performance of private cloud infrastructure. Collaborate with the product team to ensure seamless integration between infrastructure, runtime, and AI layers.

Implementation Consultant (Regulatory Reporting) leads the delivery of regulatory reporting projects. Requires 2+ years in FinTech or regulatory reporting, with experience in AxiomSL, WKFS, Moody’s, or Regnology products.

Technical Leader role requiring 8+ years of experience in Java/Kotlin and architecture design. Responsibilities include leading end-to-end technical delivery for new client engagements.

Addepto is a leading AI consulting (addepto. com/ai-consulting/) and data engineering (addepto. com/data-engineering-services/) company that builds scalable, ROI-focused AI solutions for some of the world's largest enterprises and pioneering startups, including Rolls Royce, Continental, Porsche, ABB, and WGU.

Pricing Policy Specialist role involving database design and procurement data analysis. Requires Excel/PowerPoint proficiency, B2 English, strong negotiation, and logical organization.

Manage and execute FTL/LTL freight forwarding orders, coordinating transport and resolving operational issues. Requires experience in logistics, detail-orientation, and a minimum B2 level of English.

Manage procurement of vehicles, machinery, and logistics services. Optimize purchasing processes and negotiate supplier terms. Requires a degree in a related field, experience in purchasing logistics equipment, and B2 English.

Fullstack Developer role requiring 3+ years of TypeScript experience. Develop aviation software, collaborating with cross-functional teams. Skills needed include React/NextJS, RESTful APIs, and modern tools like Git/CI/CD.

Test Automation Engineer needed for banking and insurance clients. Requires 6+ years in test automation, Java, SQL, and Agile. Experience with Cypress, Selenium, JIRA, and Postman is essential.

Manual QA Engineer to join an international team working on an insurance platform. Experience with manual testing, tools like JIRA, Confluence, Postman and SQL, and Guidewire platforms is required. Fluency in English is essential.