143 English-speaking jobs in Białystok

Senior .NET Developer with Angular expertise sought for freelance project-specific B2B contract. Develop scalable, cloud-native applications using .NET, C#, Angular, Azure services, and SQL Server.

Senior Data Engineer to design and implement scalable data architectures using Google Cloud Platform (GCP). Experience with BigQuery, Dataflow, Pub/Sub, BI/ETL, and big data technologies required.

Lead AI Consultant will drive client discovery, pre-sales, and project shaping, translating business objectives into AI strategies and ensuring measurable impact.

Data Engineer Architect to design, build, and maintain a scalable enterprise data platform using Databricks. Requires 8+ years of data engineering experience, 4+ years with Databricks, and expertise in Python, SQL, and cloud platforms (Azure, AWS, or GCP).

Senior Data Engineer to process simulation data for Autonomous Vehicle development. Analyze large-scale sensor datasets, design data queries, and prepare data for AV simulation environments and ML pipelines. Requires 4+ years of experience in Data Engineering, advanced SQL, Python, and Spark/PySpark.

Senior Penetration Tester to conduct advanced security assessments of applications, systems, and infrastructure. Responsibilities include identifying vulnerabilities, developing attack scenarios, and collaborating with technical and business teams. Requires 5+ years of experience in penetration testing with expertise in web, mobile, and infrastructure security.

Senior Backend Engineer (Java / Architecture) needed for a long-term freelance project. Refactor and modernize legacy backend systems, improve microservices, and maintain REST and SOAP interfaces. Must have strong Java (Spring / Spring Boot) and architectural skills, experience with Kubernetes, and excellent communication skills.

Senior Golang Developer needed for fully remote, contract position. Develop and maintain backend services using Go (Golang) in a modern product environment. Collaborate with product managers and designers to build features and ensure code quality.

Senior Data Engineer will design, build, and scale cloud data platforms for clients. Responsibilities include designing data pipelines, leading technical design of cloud data architectures, and collaborating with stakeholders. Requires 4+ years of experience as a Data Engineer, 2+ years with cloud platforms (Azure preferred), strong Python and SQL skills, and expertise in DWH data modeling and ETL/ELT architectures.

Senior Python Backend Engineer needed for a fully remote team. Must have at least 5 years of programming experience, including at least a year with Python. Work on a trustless supercluster of performance-proofed GPU-enabled sandboxed docker container runners controlled by truly decentralized algorithms.

Lead Python Backend Engineer needed for a fully remote team. Requires at least 5 years of programming experience, including Python, and at least 2 years of team management experience. Responsibilities include leading and guiding a team, project management, client communication, and strategic thinking. Must be able to solve complex technical challenges and contribute to the company's long-term technical vision.

Develop and implement machine learning models and generative AI systems to solve business problems. Design experiments, build scalable solutions, and contribute to cutting-edge AI systems, including those based on large language models (LLMs).

Experienced SAP Project Manager to lead complex Order-to-Cash projects in a regulated industry. Full project ownership, including scope, timelines, budgets, and risk management. Collaborate with cross-functional teams and vendors to deliver scalable SAP solutions.

Lead IT implementation or advisory projects for the insurance sector, combining consulting, project management, and insurance business expertise. Manage projects from initiation to closure, overseeing timelines, scope, budget, risks, and dependencies. Supervise business analysis and solution design, act as a team leader, and build client relationships.

Senior Business Analyst to join IT projects for financial institutions, primarily insurance companies. Conduct complex business analysis, define functional requirements, and test solutions. Collaborate with developers and IT architects.

Senior Python Engineers design, develop, and maintain scalable finance-focused backend solutions using Python. Responsibilities include integrating external systems, collaborating with Product Managers and Tech Leads, and writing high-quality, well-tested code. Must have 6 years of professional Python development experience and at least 0.5 years of commercial experience with AI tools.

Develop and maintain native Android applications using Java and Kotlin. Implement application views based on Figma designs and integrate with REST API services.

Develop and maintain applications using Dart, integrating with REST APIs and databases. Implement Figma designs, write unit tests, and collaborate using Git.

Technical Business Analyst needed to support digital solutions for handling scientific inquiries. Collaborate with teams to ensure platform efficiency, reliability, and regulatory compliance. Analyze business needs, improve processes, and ensure alignment between business and technology.

Senior Platform Engineer will evolve and scale a Databricks-based data platform, acting as a Databricks expert for teams, supporting onboarding, architecture reviews, and technical coaching. Responsibilities include improving developer experience, owning the ODP ingestion framework, and ensuring platform scalability. Requires experience with Apache Spark, Databricks Workflows, CI/CD, AWS Cloud Infrastructure, and Terraform.