ruby English-speaking jobs in Jyväskylä

Service Manager to oversee the operation and development of a Kubernetes-based infrastructure platform. Responsibilities include operational and financial management, backlog prioritization, and ensuring service levels and customer satisfaction.

Senior Software Engineer will contribute to Mozilla's localization infrastructure, including open source libraries and tools. Responsibilities include improving localization within Firefox, collaborating on Pontoon features, and engaging with the volunteer localization community. Strong Python and JavaScript experience, web technologies knowledge, and open source development experience are required.

Supports client engagements focused on modernizing shop-floor systems and manufacturing IT landscapes. Analyzes production data and helps define future state digital manufacturing architectures.

Finance Controller needed for 12-month fixed term contract at Škoda Transtech. Responsibilities include month-end closings, cash flow forecasting, stock accounting, project controlling, and audit support. Bachelor's degree in Finance and 3-5 years of accounting or controlling experience required.

Site Supervisor needed for a major data center project. Oversee daily site operations, coordinate subcontractors, ensure quality and safety, and collaborate with design and project management teams. Experience in civil works, UGS, or fit-out required.

Fiber Project Manager - Operations Do you want to make sure people, businesses, and society stay connected — by helping us maintain and protect the fiber Infrastructure of Finland?

Electrical Supervisor needed for site-based role overseeing electrical works, coordinating activities, and ensuring safety, quality, and program adherence.

Own and scale Bob W's global performance marketing engine. Drive growth across paid channels, manage budgets, and analyze data to optimize ROI. Collaborate with cross-functional teams to build and execute performance marketing roadmaps.

Supply/Demand Planner needed for a leading global FMCG client in Helsinki. Develop and maintain demand forecasts, translate plans into feasible supply plans, and manage inventory levels. Collaborate cross-functionally with Sales, Marketing, Supply Chain, Manufacturing, and Logistics. Proven experience in demand planning, supply planning, or integrated planning within FMCG or consumer goods required.

Postdoctoral researcher to lead development of characterization workflow for lithium deposition and solid-electrolyte interphase (SEI) analysis in lithium-mediated nitrogen reduction reaction (LiNRR) systems. Will build correlative characterization and analysis workflow, perform operando and post-mortem characterization, and correlate materials characterization results with electrochemical kinetics analysis. Collaborate with project partners and support their research activities.

Technical Sales Manager for C&I Storage products in the Nordic region. Provides technical expertise to customers and partners, develops solutions, and supports sales activities. Requires an electrical technical degree, 5+ years in battery energy storage sales or product management, and fluency in English and a Nordic language.

The New Product Manufacturing Engineer is responsible for commercializing new products, modifying designs for manufacturability, and creating engineering change orders. The role requires proficiency in NX and Team Center, as well as strong communication and problem-solving skills.

Lead AI & ML Engineer to design, build, and scale intelligent systems for Allocator, a product that optimizes mobile resource allocation. Responsibilities include architecting data pipelines, integrating LLMs, and leading the AI roadmap. Requires 5+ years of experience building and operating ML systems at scale.

Ensures timely procurement and delivery of satellite components. Procures and sources mechanical and structural components, working with technical experts to maintain quality and reliability. Manages vendor relationships, negotiates pricing and lead times, and mitigates supply risks. Requires 3+ years of experience in supply chain/procurement within aerospace, engineering, or industrial manufacturing. Solid experience with mechanical parts and supplier management is essential.

This technical sales role focuses on increasing adoption of Hilti solutions within the Shipbuilding industry. Responsibilities include developing account strategies, securing project specifications, and building relationships with Shipyards, Turnkey Contractors, and Specifier accounts. Requires experience in Shipbuilding or Industrial Construction projects and proven ability to develop and execute long-term account strategies.

Project Delivery Manager will lead end-to-end customer implementations of Tandem's AI-powered healthcare solutions, ensuring on-time and on-scope delivery. Responsibilities include coordinating technical setup, user training, and risk management. Requires native Finnish fluency, project management experience in healthcare technology, and strong stakeholder management skills.

Lead the development of a cloud-native platform combining React/TypeScript frontend, Python backend, AWS/Kubernetes, and quantum/HPC integrations. Drive secure identity, reliability, and engineering standards. Translate product requirements into scalable solutions and collaborate cross-functionally.

The University of Oulu seeks a Marie Skłodowska-Curie Postdoctoral Fellow to conduct research on sustainable energy and sustainability transitions. The successful candidate will work with the Sustainable Energy Business Research Group.

Execute purchase orders, ensure on-time delivery, and serve as the main contact for suppliers. Participate in supplier and process development.

Reception Manager to lead a team, ensuring outstanding guest experiences. Oversee daily front desk operations, supervise staff, and handle guest inquiries and requests. Fluent English required.