javascript English-speaking jobs in Jyväskylä

Manager, Purchasing & Logistics Finance will lead financial analysis, performance management, and strategic planning for KONE Purchasing. Requires a Master's degree in finance, international experience in a finance role, and advanced analytical skills.

Intern to support energy team in developing models and analyzing the impacts of energy/environment regulation in European countries. Fluency in English and German required.

Technical Associate, Quality Control (QC) Technical Operations will coordinate laboratory equipment and facility activities, prepare GMP documentation, and support laboratory equipment maintenance.

Project Architect to lead and develop architectural concepts for data center and industrial projects, ensuring compliance with Finnish regulations. Requires a relevant architecture degree, principal designer licensure, and experience in data center or industrial design. Fluency in Finnish and English is essential.

Earn extra income on your own schedule by offering home cleaning, window washing, gardening, shopping assistance, cooking help, and home organization services in Janakkala, Riihimäki, Ypäjä, Loppi, Jokioinen, Humppila, Tammela, Hämeenlinna, Hatttula, Forssa, and Hausjärvi. Must have fluent Finnish language skills and a good credit history.

Element installer needed for diverse construction projects in the Tampere area. Install concrete elements like walls, pillars, beams, and slabs according to drawings. Prepare and cast arches, participate in soldering and joint casting.

Memos Mediterranean Restaurant seeks a Chef experienced in preparing high-quality Mediterranean cuisine and a Waiter/Customer Service Representative passionate about delivering outstanding customer service.

Facilities Engineer needed to maintain a wellness and social space. Responsibilities include routine inspections, preventative maintenance, repair work, and supporting safety procedures. Requires experience in trades, facilities maintenance, and strong problem-solving skills.

Develop and execute sourcing strategies for direct and indirect materials. Lead supplier selection, qualification, and onboarding activities. Negotiate pricing, lead times, and contracts. Manage supplier performance, risk mitigation, and capacity planning. Support production planning, material availability, and inventory management.

Part-time Account Executive to drive signup growth for NordicB2B, a pan-Nordic B2B sales intelligence platform. Responsibilities include outbound prospecting, product demos, and closing deals. Requires 1-3 years of B2B SaaS sales experience, fluency in Finnish and English, and the ability to work independently.

Development Director Remedy Entertainment, the creator of Control®, Max Payne®, FBC: Firebreak®, Alan Wake®, and one of the leading independent game studios in the world, is looking for a Development Director to create high‑quality gaming experiences for the next generation.

Postdoctoral researcher to plan and execute experiments on 2D material nanocomposite synthesis. Fabricate and characterize thin-film devices. Publish findings and present at conferences.

Shift Manager for carton plant operations. Requires several years of experience in production, safety, and daily operations management.

Service Supervisor needed for store cleaning in Inkeroisiin, Kouvola. Part-time, fixed-term position (until August 29, 2026, with potential extension)

Lead Product Manager for Angry Birds Friends will own product vision and strategy, ensuring features, economy, and progression meet business goals. Collaborate with cross-functional teams to define, validate, and deliver impactful product improvements. Oversee game economy, progression systems, balance, and difficulty.

Part-time Sales Person (30 hours/week) needed until August 2027. Duties include customer service, cashier work, stocking shelves, collecting robot orders, and general store maintenance. Must be able to adapt to changing tasks in a fast-paced environment and work flexible hours. Pay is based on industry collective agreement (€10.89-€14.57/hour) with evening and weekend premiums.

Cybersecurity Specialist to develop and maintain OT product cyber security solutions for industrial automation. Requires 3+ years of OT cyber security development experience, knowledge of IEC 62443, and understanding of OT/ICS environments.

Experienced Data Scientist to optimize rewards and incentives, recommend offers, and own experimentation and measurement. Develops and deploys models, builds features, and mentors the team. Requires strong statistical judgment, experience with production pipelines, and cloud/software engineering fundamentals.

Experienced Electrical Package Manager needed for large-scale data centre projects. Manage the full lifecycle from design coordination and procurement to installation, testing, and commissioning. Oversee subcontractors and ensure compliance.

The University of Oulu seeks a Postdoctoral Researcher to join the Space Physics and Astronomy Research Unit. The successful candidate will study global changes in the ionosphere-thermosphere system induced by geomagnetic storms using numerical simulations and satellite data.