backend developer English-speaking jobs in Lahti

Design Manager (Site) leads design authority on CTS data centre construction sites in Finland. This role manages RFIs, controls design changes, and interfaces between site teams and engineering offices. Requires 7+ years' experience in complex construction.

Area Sales Manager for European Cable Entry Solutions. Responsible for acquiring new customers and maintaining existing accounts in the OEM and spare part markets. Requires technical education and 3+ years in engineered product sales.

AV Designer needed to plan and execute technical setups for live, studio, and hybrid events. Requires 5+ years in live production, strong technical understanding, and the ability to solve problems proactively. Fluent English and Finnish are required.

Support JLR Finland's F&I strategy by working with partners to improve commercial performance and customer retention. Monitor KPIs, analyze data, and coordinate product implementation across the dealer network. Requires Finnish and English fluency.

Postdoctoral Researcher in AI Engineering at the University of Helsinki. The role involves research on AI software systems, covering data science to software engineering, and includes project management and mentoring. A PhD in a relevant field is required.

Intermediate MEP Quantity Surveyor oversees cost management for mechanical, electrical, and plumbing works on complex engineering projects. Responsibilities include preparing BOQs, tracking costs, and supporting cost reporting. Requires skills in Cost Control and Cost Management for MEP.

Sourcing Engineer to secure supply of electronic components for advanced electronic warfare systems. Manage supplier relationships, lead sourcing activities, and monitor market risks. Requires analytical skills and strong communication.

OP Corporate Bank seeks a DCM Analyst Trainee for the 2027 Kiitorata Program. Responsibilities include assisting with capital markets transactions, pitching new business, and preparing financial models. Strong quantitative and analytical skills are required.

Stock Keeper manages material storage and handling in the Simo warehouse. Responsibilities include inventory, transfers, picking, and handling non-conformities. Requires 2-5 years of warehousing experience and fluency in English and Finnish.

Financial Accountant responsible for core financial operations, including GL reconciliations, AP/AR management, and cash flow oversight. Key duties involve VAT compliance, statutory reporting, and preparing FINGAAP financial statements.

Spare Part Planner for Waterjets in Global Customer Support. This role improves delivery times and mitigates supply chain risk by linking procurement, production, and sales. Requires a degree in Logistics, Finance, or Engineering.

Mechanical QA/QC Engineer for a major data centre project. Responsibilities include ensuring mechanical installations (HVAC, pipework, cooling) meet specifications through inspection, documentation, and testing. Requires large-scale construction QA/QC experience.

Motivated Chanel Beauty Advisor needed to provide personalized service and expert artistry to global guests while living and working on a cruise ship. This role involves promoting skincare, makeup, and fragrance to meet sales targets.

Senior Software Engineer role focusing on backend development using C#/.NET for business-critical fintech software. Take end-to-end ownership of treasury and banking systems, balancing maintenance with new feature development.

Join CraftLeap to develop web-based software for manufacturing, focusing on production and inventory management. You will design features, build UIs, maintain code, and develop integrations alongside the founder.

Postdoctoral Researcher in AI Engineering at the University of Helsinki. This fixed-term role involves research on AI software systems, project management, and mentoring. A PhD in a relevant field is required.

Key Account Manager drives business growth by building partnerships with diverse foodservice customers. Requires experience in sales or account management within related industries, strong relationship building, and fluency in Finnish with good English.

Validate equipment and computerized systems across manufacturing operations. Define testing strategies, lead qualification activities for GxP-critical systems, and ensure regulatory compliance. Requires relevant engineering degree and fluency in Finnish and English.

Build and develop Metsä Group’s Azure Databricks-based data platform. Design scalable data pipelines and data models, transforming source data into business-ready products using medallion architecture. Requires strong SQL and Python skills.

Proactive Account Executive to drive growth by identifying and winning new customers. Focus on building pipelines, conducting discovery, and positioning M-Files as a strategic information management solution. Native Finnish required.