130 English-speaking jobs in Białystok

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.

Experienced Product Owner with cybersecurity background needed to drive product development. Translate security requirements into product features, manage backlog, and collaborate with engineering, product management, and security teams.

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.

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.

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.

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 AI Quality Analyst ensures the performance, safety, and reliability of AI/ML models. Responsibilities include designing evaluation strategies, performing error analysis, managing datasets, conducting exploratory testing, and reporting insights.

As an AI Engineer at Netguru, you will implement Azure OpenAI API, RAG systems, and fine-tune open-source models for clients. You will design, develop, and deploy machine learning models, experiment with ML techniques, and lead AI project implementations.

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 .NET Developer sought for contract work. Design, implement, and maintain .NET applications. Collaborate with teams, review code, and participate in technical discussions. Requires 5+ years of experience with C#/.NET, .NET Core, ASP.NET Core, and related frameworks. Strong understanding of object-oriented programming, design patterns, and clean code principles. Experience with RESTful APIs, SQL and NoSQL databases, cloud environments, CI/CD pipelines, and version control systems. Fluent English and experience in Agile/Scrum teams.

Senior Frontend Developer (React) needed for a software house. Design, implement, and maintain high-quality frontend applications using React. Collaborate with cross-functional teams and contribute to frontend architecture decisions. 5+ years of experience as a Frontend Developer with strong React expertise required.

Senior Java Developer sought for a B2B Framework Agreement. Design, implement, and maintain Java applications, collaborating with teams and contributing to architecture decisions. 5+ years of experience as a Java developer with exposure to Spring Boot, Hibernate, or similar frameworks is required.

Senior Frontend Developer (Angular) needed for a software house. Design, implement, and maintain high-quality frontend applications using Angular. Collaborate with cross-functional teams and contribute to frontend architecture decisions. 5+ years of experience as a Frontend Developer with strong Angular (2) expertise required.

Senior Node.js Developer sought for contract work. Design, implement, and maintain high-quality Node.js applications. Collaborate with teams, review code, and participate in technical discussions. Requires 5+ years of experience with Node.js, frameworks like Express.js or NestJS, and experience with RESTful APIs, databases, and cloud environments.

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.

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

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

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.