backend developer English-speaking jobs in Lahti

Experienced Electrical Commissioning Engineer needed for 12-month contract on a large-scale data center project in Finland. Responsibilities include planning and executing electrical commissioning activities, testing critical systems, and coordinating with various teams. Must have strong experience in data center or similar environments and knowledge of MV/LV power distribution systems.

Build production-grade AI systems for a sales enablement platform. Design autonomous AI agents, extend AI capabilities, and develop intelligent retrieval systems. Collaborate with a small team to shape product direction and AI architecture.

Facility Coordinator/Office Assistant needed to support daily operations at IBM's Helsinki office. Coordinate facility services, manage suppliers, and act as the primary contact for facility-related requests. Fluency in Finnish and English required.

Junior Site Manager to support day-to-day site operations on a hyperscale data centre project in Vaasa, Finland. Rotational role with 3-week rotations and a long weekend at home. Requires construction-related qualification and previous site management experience.

Experienced AWS Cloud Engineer needed to design, implement, and optimize cloud-native platforms. Requires strong AWS services knowledge (EC2, ECS, EKS, Lambda, RDS, S3), Terraform expertise, and CI/CD experience.

Doctoral Researcher to join EIRIS, a research project investigating the role of endocrine-disrupting chemicals in endometriosis. Responsibilities include evidence synthesis, data analysis, and experimental work. Requires a Master's degree in a relevant life science field and strong motivation to work at the interface of environmental health, women's reproductive health, and toxicology.

Supervises a team to provide excellent customer service and maximize store profitability. Assists with training, administrative duties, and upholding store standards. Requires strong communication, leadership, and selling skills.

Lead the strategy and roadmap for core business platforms including ERP, CRM, HRIS, PSA, Subscription Management, and Support tools. Design and optimize workflows across Lead-to-Cash, Procure-to-Pay, and Record-to-Report processes. Ensure systems support automation, standardization, and scalability. Drive post-acquisition system integrations and harmonization. Champion data quality and governance across platforms. Manage vendor relationships and major systems projects. Promote user adoption through enablement, training, and documentation.

Drivers will collect high-quality visuals of streets, points of interest, and public spaces using vehicles equipped with 360° cameras and lidars. Data will be stored on onboard computers for use in mapping platforms.

Product Engineer needed to bridge product management and engineering for optical fiber production technologies. Responsibilities include driving product development, supporting R&D, collaborating with Product Managers, and ensuring technical consistency across sales and engineering. Requires engineering experience, technical expertise, problem-solving skills, and fluency in English and Finnish.

Experienced QA/QC Mechanical Manager needed to lead quality assurance and control activities on a large-scale engineering and construction project. Responsibilities include developing QA/QC strategies, overseeing installation of mechanical systems, and ensuring compliance with project specifications and standards. Requires a Bachelor's degree in Mechanical Engineering or related field and significant experience in mechanical QA/QC, engineering, or construction.

Research Scientist to develop radiotherapy treatment planning algorithms and software for the Eclipse Treatment Planning System. Contribute to product development, collaborate with multidisciplinary teams, and improve cancer treatment. Requires MSc or PhD in a technical field, strong C++ programming skills, and expertise in algorithms, optimization, or scientific computing.

Mad Hopper Brewing Company seeks a hybrid talent to combine brewery production and B2B sales. Responsibilities include assisting with brewing, packaging, and quality control, as well as acquiring new customers, developing relationships, and coordinating orders. Experience in brewery work, beer production, and B2B sales is required.

Front Desk Receptionist needed for Lapland Hotels Bear's Lodge winter season 2026-2027. Manage reservations, check-in/check-out, and handle guest inquiries. Support lobby bar operations. Requires previous reception experience, Opera Cloud knowledge, and fluency in Finnish.

The University of Oulu seeks a Post-doctoral Researcher to join a multidisciplinary research group exploring the development of multimorbidity across the life course. The researcher will analyze nationwide health, healthcare, and sociodemographic data, utilizing advanced longitudinal modeling and causal inference approaches.

Design and develop cloud-based APIs, systems integrations, and enterprise applications for clients. Strengthen capabilities in AI-driven software development, including Agentic Swarm Coding and Spec-Driven Development. Collaborate with stakeholders and engage in hands-on programming. Experience in developing enterprise-level web applications, APIs, and integrations using cloud-native technologies is required. Proficiency in Azure services and .NET (C#) development is also required.

KSS Rakennus Oy seeks Electrical Network Installers in Päijät-Häme. Install, maintain, and construct electrical networks. Requires electrical installer training, fluency in Finnish, and a valid driver's license B. Prior experience and safety qualifications are valued.

This hybrid role reports to the Sales Director in Denmark and focuses on delighting customers and nurturing trusted partnerships within the Finnish Enterprise market. The Account Executive will prospect enterprise net new opportunities using innovative techniques and top-tier channel partners. They will identify and develop business cases aligned with strategic initiatives, articulating Zscaler's unique value and differentiation. The role requires a minimum of 8 years of sales experience carrying a revenue quota and selling specifically to the Finnish markets.

Leads the design, development, and scaling of service-based business models within the mining and capital equipment environment. Focuses on creating scalable lifecycle offerings that deliver customer value and support Metso's growth objectives. Collaborates with global Product Groups, Business Lines, and regional teams.

Manages the CoLocation Data Center infrastructure project, ensuring smooth delivery and operational stability. Oversees data center operation moderation, event reporting, and fault handling. Collaborates with vendors and internal teams to support facility delivery and maintenance. Requires a diploma or professional certification in Electrical/Mechanical Engineering with 5+ years of datacenter facility operations experience.