intern internship English-speaking jobs in Białystok

Finance HR Operations Coordinator supports financial and HR operations, focusing on data accuracy, payroll processes, and reporting. Requires 2+ years of iGaming finance experience, advanced Excel skills, and strong analytical abilities.

Develop and maintain DPU drivers and networking software stacks. Integrate and optimize fast-path packet processing components. Debug and profile data path performance issues. Collaborate with hardware and firmware teams.

Senior Ruby on Rails and React Developer with 8+ years of experience sought. Expertise in designing, building, and maintaining robust systems, including admin panels and internal tooling. Proven ability to identify gaps, propose solutions, and drive projects to completion independently. Strong focus on quality, with extensive experience in designing and maintaining test suites.

Junior Chargeback Specialist will assist with daily chargeback management, following procedures and liaising with card schemes and customers. Requires 2+ years of chargeback experience, strong payment scheme regulations knowledge, and proficiency in Excel.

Senior Analyst will perform threat modeling and control assessments across internal, external, and cloud environments. Collaborate with developers, architects, and technical leads to identify control gaps and recommend solutions.

The Junior AR Accountant (French) will support AR operations globally, handling cash allocation, collection management, customer management, reconciliation, and month-end tasks.

Design, build, and deploy production-grade GenAI applications using LLM APIs. Own end-to-end feature delivery, including backend development in Python, API design, and UI integration. Integrate AI workloads with log platforms, data lakes, automation workflows, and security tools.

Designs and deploys machine learning and optimization solutions for manufacturing and technical development. Analyzes data, identifies opportunities, and collaborates with cross-functional teams to drive scalable solutions. Communicates findings to technical and non-technical audiences.

Lead SAP consulting engagements, providing solutions from problem definition to deployment. Analyze solutions, identify risks, and propose change management strategies. Coach and mentor teams, providing subject matter expertise and training.

This role combines business development and team leadership for Arcadis' Environmental Advisory & Compliance services in Poland. The Business Development Lead will drive revenue growth, identify and convert business opportunities, and manage a team of consultants.

Provide first and second level IT support (hardware, software, mobile devices) in a professional, regulated environment. Troubleshoot incidents and service requests via ticketing system (ServiceNow). Document activities and resolutions accurately. Support IT onboarding for new employees.

Leads funnel performance, CRO, and commercial alignment between paid acquisition and on-site experience. Builds, tests, and optimizes funnels and landing pages to convert paid traffic into customers. Owns the full lifecycle of funnels, landing pages, and commercial flows. Directs the commercial execution of new product launches and campaigns.

Senior Product Engineer to build and ship AI features for a B2B customer support platform. Responsibilities include designing backend services, building APIs, and driving system scalability. Experience with LLM orchestration, API optimization, and AI observability is required.

Purchasing Intern supports day-to-day supply chain and logistics activities, including procurement, inventory tracking, and purchase planning.

Enterprise Architect for Data Analytics will lead complex projects, provide architectural designs, and act as a trusted advisor to Product Line leadership. This role requires deep expertise in Data Analytics architecture domains and a proven ability to define and communicate a technology vision that delivers business value.

Lead Quest Designer to manage and guide a team, ensuring the successful delivery of fun and memorable quest experiences for a new IP. Collaborate with cross-functional teams to craft a cohesive game experience.

Leads a geographically distributed team of application developers in the development, maintenance, and enhancement of enterprise software applications. Ensures alignment with business objectives and adherence to SDLC, change management, and audit compliance processes.

Software Engineer (Front End) will design and implement modern front-end applications, shared UI components, and frameworks. Responsibilities include front-end application development, ensuring performance, quality, and reliability, and promoting automation and standardization.

Support the Finance Team in day-to-day accounting activities with a focus on Accounts Payable. Responsibilities include processing and posting vendor invoices, entering data, preparing reports, and assisting with monthly closing activities.

Security Operations Engineer needed to monitor cloud environments, analyze threats, and manage security incidents. Responsibilities include continuous monitoring, threat analysis, incident response, investigation, and documentation. Requires 3+ years of experience in security monitoring, analysis, and incident response. Knowledge of security-related group policies, forensic analysis tools, SIEM tools, and firewalls is necessary.