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15.06.2026 | Pełny etat | Białystok | Sii Sp. z o.o.To the hardware layer for advanced telecom systems. If this opportunity sounds interesting to you, please apply. responsibilities Work as a C developer for high-performance and high-reliability mobile network systems and applications - Develop scalable, multi-threaded functionalities using Linux OS and its multi

12.06.2026 | Pełny etat | Białystok | Sii Sp. z o.o.And maintain data pipelines for retrieval, orchestration, and evaluation - Implement solutions using frameworks such as LangChain, LangGraph, LlamaIndex, or custom approaches - Develop and optimize RAG pipelines (chunking, embedding, retrieval, reranking) - Integrate LLM models (OpenAI and open-source

11.06.2026 | Pełny etat | Białystok | Sii Sp. z o.o.Designing, building, and maintaining microservices using Kotlin - Collaborating with cross-functional teams to deliver solutions across Platform, Services, SMB, and other domains - Supporting system performance monitoring and contributing to improvements in reliability and scalability - Participating

08.06.2026 | Pełny etat | Białystok | Sii Sp. z o.o.Workflows using modern Svelte - SvelteKit, with a focus on real-time responsiveness, interoperability and minimal latency - Write testable, maintainable code with appropriate unit and component-level tests, and contribute to the team’s continuous integration pipelines - Apply modern tooling and champion

08.06.2026 | Pełny etat | Białystok | Sollers ConsultingWith English native speakers. - Solid analytical skills and the ability to solve complex problems using both structured thinking and intuition. - Practical knowledge of SQL and Excel (data cleaning, pivot tables, lookups, basic automation). - Basic experience with Python for data analysis (e.g., pandas, simple

05.06.2026 | Pełny etat | Białystok | WorkaiEnterprise-grade mobile applications using Flutter and Dart, - building scalable and modular mobile architectures - integrating mobile applications with backend services and REST APIs - implementing authentication and authorization mechanisms (OAuth2, OpenID Connect) - ensuring high standards of code quality

05.06.2026 | Pełny etat | Białystok | Sii Sp. z o.o.And maintain backend services using Java/Spring Boot - Apply AI tools to speed up refactoring, boilerplate generation, and debugging - Design and develop REST APIs in a microservices architecture - Automate unit, integration, and end-to-end testing with AI-assisted approaches - Collaborate on CI/CD and code

03.06.2026 | Pełny etat | Białystok | AddeptoDesign and implement data pipelines that process large volumes of data in both streaming and batch modes. - Optimize data workflows to ensure efficient data ingestion, processing, and storage using technologies such as Spark, Cloudera, and Airflow. - Work with data lake technologies (e.g., Iceberg

03.06.2026 | Pełny etat | Białystok | AddeptoOperations, using real-time data from sources like radar, air traffic, and passenger information. - AI recommendation engine for the leading innovation company. This project involves creation of AWS-powered solutions to provide domain-specific recommendations by employing sophisticated LLMs. responsibilities