170 English-speaking jobs in Białystok

We are looking for an experienced Senior React Native Developer responsible for building and maintaining modern mobile applications for both iOS and Android platforms. The person in this role will collaborate closely with the project team on application architecture, implementation of new features, and performance optimization.

Design and maintain QNX-based platforms, integrating BSPs, services, and middleware. Develop system services using QNX IPC, resource managers, and timers. Integrate BSPs, drivers, and startup scripts, optimizing boot time and system footprint.

AWS Senior Engineer needed for cloud application development and DevOps support. Requires 3+ years DevOps experience, expertise in AWS services (DynamoDB, Lambda, etc.), Terraform, Kubernetes, Python, and Jenkins. Strong communication skills and English proficiency are essential.

Principal DevOps Engineer to design, build, and operate scalable cloud environments on Google Cloud Platform (GCP). Experience with Kubernetes, Terraform, and GCP services required.

Develop and operate enterprise-grade OpenStack environments as part of the Cloudboostr platform. Build and maintain automated infrastructure provisioning, upgrade, and backup pipelines using Terraform and Ansible. Ensure high availability and performance of private cloud infrastructure across on-premises and EU-based deployments.

Senior Machine Learning / LLM Systems Engineer will scale and optimize large-scale ML and LLM systems. Responsibilities include optimizing latency, throughput, and resource efficiency of ML workloads and designing and operating distributed training and inference systems.

As a Senior Machine Learning Engineer, you will own the business-critical logic behind our campaign-based flash sale model. You will build and deploy data-driven and machine learning solutions for portal personalization and campaign ranking.

This internship offers a structured, project-based experience for aspiring .NET developers. You will build features using .NET 8 (C#) and Vue.js, learn cloud fundamentals with Azure, and collaborate in a team environment.

Implement Guidewire Insurance Suite solutions for international clients, configuring modules like Claim Center, Policy Center, and Billing Center. Integrate Guidewire with external systems and contribute to project implementation, design, testing, or technical leadership.

Build and design secure, scalable microservices in a cloud SaaS environment. Develop products from concept to reality, solve complex problems, and collaborate with a team to create high-quality software.

Senior Data/AI Engineers will design, build, and maintain data pipelines, models, and transformations for a prestigious customer. Responsibilities include data observability solutions, turning data into business insights, and mentoring junior team members.

Designs cybersecurity solutions, configures and installs IT security systems, and presents company offerings. Requires experience with Check Point Maestro, strong networking knowledge, and the ability to integrate multi-vendor solutions.

Business Development Coordinator will acquire new customers in assigned export markets, managing the full sales process and building long-term relationships.

Data Engineer to design, develop, and maintain scalable data pipelines and analytics solutions in GCP. Experience with LLM token usage data analysis, forecasting, and anomaly detection is required. Strong Python skills and experience with BigQuery are essential.

Senior Software Engineer will implement and maintain reliability solutions, focusing on automation, observability, and operational excellence. Responsibilities include developing automated solutions for system reliability, participating in incident response, and contributing to CI/CD pipeline improvements.

Provides first-line IT support to Coveris Group employees across all sites. Resolves incidents and service requests, manages user accounts, and supports Microsoft 365, Windows devices, and VPN access. Escalates complex issues and contributes to service desk knowledge articles. Requires 1-2 years of experience in a service desk role, proficiency with Active Directory, Microsoft 365, and ITSM tools. Fluent English required.

Senior Product Owner with 5+ years of experience in software delivery, actively using AI tools in professional workflows. Responsibilities include requirements management, stakeholder alignment, and designing AI-assisted workflows for research, drafting, analysis, and documentation. Must have experience building and iteratively refining personalized AI workflows beyond single-prompt ChatGPT use.

Regional Business Lead will own performance across acquisition, sales, retention, and teaching cost efficiency. Requires 3+ years in business performance, strategy, or growth roles with strong analytical and unit economics thinking. Experience with P&L metrics and fast-growing B2C businesses is essential. Advanced English required.

Business Development Manager to drive market growth by identifying and securing new business opportunities within the packaging industry.

Senior Product Designer to join Lifecycle Growth team focused on business outcomes. Designs for activation, conversion, and retention, running experiments and collaborating with designers across product teams. Must have a portfolio demonstrating business thinking and experience with the full design process. Mastery of Figma and familiarity with experimentation tools and product analytics required. AI-assisted design experience is a plus.