202 English-speaking jobs in Białystok

Senior Observability Tech Lead to own and drive observability domain within a global consumer organization. Hands-on leadership role requiring deep technical expertise in New Relic, architecture ownership, team leadership, and stakeholder engagement.

AgileEngine seeks a Middle/Senior Backend Engineer to architect and scale a modern Ads platform. You will design high-performance backend systems and APIs, process large advertising data volumes, and collaborate with product and data teams.

Senior Java Developer to design, develop, and maintain solutions based on the EIS Digital Insurance Platform. Experience with PolicyCore, BillingCore, ClaimCore, and REST APIs required.

Senior QA Engineer to design, develop, and maintain automated tests, execute manual tests, and collaborate with developers to ensure application quality.

Consultant to analyze, configure, and support Microsoft Dynamics 365 Finance (F&O) for financial processes. Requires 4+ years of experience in D365 Finance/AX, strong knowledge of financial processes, and ability to translate requirements into system configuration.

Relativity seeks a Knowledge Specialist to maintain and improve the Relativity Knowledgebase. The role involves collaborating with subject matter experts to ensure accurate, up-to-date content aligned with brand guidelines. The ideal candidate has experience with KCS methodology, knowledge management, and content strategy.

Data Center Technician provides on-site support for critical infrastructure at world-class data center facilities. Responsibilities include installing, configuring, and maintaining server and network equipment, performing structured cabling, and monitoring environmental systems.

Paid internship in the Performance Department of a Polish Ekstraklasa club. Assist with strength and conditioning training, player rehabilitation, and data analysis. Requires experience in football fitness training, Return to Play protocols, and fluency in English.

Senior Software Engineer / Architect will design software architecture, lead software work packages, and develop software solutions. Requires 5+ years of experience in Java, Spring Boot, C++, Python, and HTML, CSS, Angular. Must have knowledge of DevOps practices and be fluent in English. Experience with Selenium, cloud backends, UX design, and secure software design is a plus.

Senior Ruby on Rails Engineers will design, build, and maintain secure, scalable microservices in a cloud SaaS environment. Responsibilities include building products from conception to reality, collaborating with teams, and mentoring other engineers. Candidates should have at least 4 years of experience as a Ruby/Ruby on Rails Developer, experience in cloud or large-scale environments, and understanding of RESTful API design.

Business Development Manager to drive B2B sales for a data-driven eCommerce company. 3+ years of B2B SaaS sales experience required, with a proven track record of closing deals with large brands. Must be proficient in CRM systems, sales intelligence tools, and prospecting automation.

Freelance home cooks in Poland are needed to photograph dishes prepared according to project guidelines. Submissions must include photos of the entire cooking process and details about the recipe. Must be 18+, reside in Poland, and have a smartphone with a camera released in 2018 or later. Compensation is $12 USD per accepted dish.

Senior Backend Engineer to build and scale event-driven microservices on AWS. Requires Python, AWS, microservices, SQL, CI/CD pipelines, and Terraform/CloudFormation.

Addepto seeks a Pre-Sales Engineer to help clients leverage AI and data platforms. You will align technical solutions with business goals, act as a trusted advisor, and support technical discovery.

Senior Data Platform Engineer will design and maintain distributed data systems using Spark, Delta Lake, and Iceberg. Responsibilities include building scalable data pipelines, implementing governance controls, and optimizing performance across Databricks and Snowflake. Requires strong Python and SQL skills, hands-on Spark experience, and expertise in Delta Lake and/or Apache Iceberg.

Senior Data Platform Engineer will design and maintain cloud-native lakehouse platforms using Spark, Delta Lake, and Iceberg. Responsibilities include building scalable data pipelines, implementing governance controls, and optimizing performance across Databricks and Snowflake. Strong Python and SQL skills, hands-on Spark experience, and expertise in Delta Lake or Apache Iceberg are required.

Senior UX Researcher will lead end-to-end research projects, uncovering user needs and behaviors through qualitative and quantitative methods. This fixed-term role requires experience with user research methodologies, AI research tools, and data synthesis.

Senior UX/UI Designer needed for a 12-month contract to design complex digital banking products. Responsibilities include creating user interfaces, prototypes, and data visualizations while collaborating with cross-functional teams. Requires 5+ years of experience, proficiency in Figma, and fluency in English.

Software Engineer will develop customer-specific projects, collaborate with Customer Success Managers, and create interfaces using Java and Spring Boot. Must have 4+ years of experience with Java and Spring Boot, experience in enterprise integrations, and understanding of Microservices and Kubernetes.

Lead Data Engineer to design and implement large-scale data platforms based on Databricks. Develop distributed data processing pipelines, ensure data system performance and reliability, and guide engineering teams in modern data architecture best practices.