intern internship English-speaking jobs in Częstochowa

Join Ryanair Group as Cabin Crew. No prior experience is required; comprehensive training is provided. Candidates must pass English and situational judgment assessments. Must be able to work shifts and meet height requirements.

Business Systems Engineer role involves creating and maintaining integrations between cloud and on-premise systems. Requires senior/regular programming skills in C, C++, or Go, plus knowledge of scripting and REST APIs.

Operational Purchaser joins the Supply & Production Planning Team. Responsibilities include placing orders, monitoring deliveries, and managing supplier relationships. Requires a university degree, ERP experience, and strong English skills.

Independent M&A Partner role for experienced professionals in Warsaw. Requires a proven track record in cross-border M&A across Poland and CEE with enterprise value $\ge$€50M. Compensation is linked to mandate participation.

Support the AP team with daily accounting tasks and month-end closing activities. Responsibilities include processing documents in SAP VIM. Requires a degree in Finance or Accounting and very good English skills.

Coordinate end-to-end installation activities, preparing plans and managing resources. Serve as the main contact for subcontractors and stakeholders, ensuring site quality and safety. Requires 2+ years in installation coordination and fluency in English and German.

Recruiting Cabin Crew for the Ryanair Group. Candidates must have unrestricted EU work rights, be between 5'2" and 6'2", and be able to swim 25 meters. Requires English proficiency and flexibility for shift work.

Dynamic professional to shape sales incentive strategies and territory design for Western Europe. Responsibilities include developing incentive plans, leading quarterly calculations, and performing incentive reporting using SQL and Tableau.

General Ledger Accountant needed to ensure general ledger integrity and accurate financial reporting. Responsibilities include journal entries, reconciliations, fixed assets, and month-end close support. Requires a Bachelor's in Accounting and 2+ years of GL experience.

Sales Assistant to support customers in choosing storage solutions and achieving sales goals. Requires organization, communication skills, and English proficiency. Duties include acquiring new customers and handling administrative tasks.

Diagnose and troubleshoot technical issues in locomotives during the warranty period. Provide technical support, perform inspections, and maintain service documentation. Requires technical education and fluent Polish.

Manage global supplier relationships for telecommunications services, resolving complex billing issues and ensuring data integrity of the TEM platform. This role assists with funding processes and cost savings claims.

Design, develop, and deploy AI, ML, GenAI, and agentic AI solutions to solve complex business challenges. Translate requirements into production-ready, scalable technical solutions.

Sales Executive/Business Development Specialist to grow the customer base for SaaS platforms GYMMANAGER and CLIMBMANAGER. Requires B2B sales experience, excellent English, and proficiency with HubSpot and Apollo.io.

Senior Accountant for a global consulting leader. Manage complex accounting processes, ensure accurate financial reporting under US GAAP/local GAAP, and support month-end/quarter-end closes. Requires 5+ years' experience and strong analytical skills.

This role involves executing customer service tasks in inbound traffic, such as order information, product details, and technical support. Outbound tasks include data verification, market research, and inviting customers to meetings.

Support payroll operations for selected countries, processing inputs, maintaining data, and coordinating with external providers. Requires experience in payroll administration and strong attention to detail.

Mechanical Designer develops technological areas and machines for industrial lines. Responsibilities include design calculations, creating manufacturing drawings, and process improvement. Requires a relevant engineering degree and proficiency in AutoCAD and Inventor.

SAP Production Logistics Consultant supporting R3 and S4-Hana systems. Responsibilities include process mapping, technical design, and global solution implementation in production/logistics. Requires SAP Logistics module experience and fluency in English and Polish.

Process and control domestic and international payments end-to-end. This role requires experience in payments operations, strong attention to detail, and proficiency in English (B2) and Hebrew (B1).