frontend developer English-speaking jobs in Lahti

Sales Manager for Corrugated Finland will manage a customer portfolio, drive profitable growth, and build long-term partnerships. Responsibilities include identifying business opportunities, planning customer meetings, and collaborating with internal stakeholders. Fluency in Finnish and English is required.

Own and scale digital acquisition for WithSecure's Cloud Protection for Salesforce business. Drive paid growth across Meta, LinkedIn, Google, and emerging channels. Build marketing automation flows and leverage AI to improve campaign performance.

Experienced Technology Lead needed for a 9-month project in Helsinki, Finland. Lead development, enhancement, and maintenance of enterprise telecom applications using Python, Java, Groovy, and XML. Provide L2/L3 support, manage databases, and operate systems in 24/7 environments. Strong background in telecom systems, high-availability platforms, and production-critical operations required.

Simulation expert to model semiconductor processes, investigate materials, and optimize production. Requires expertise in process development, simulation tools, and semiconductor fabrication technologies.

This Senior Product Manager role focuses on monetization strategy for Yousician and GuitarTuna. You will design, execute, and analyze experiments across paywalls, pricing, and offers, driving revenue growth. You will maintain the revenue forecast, partner with Finance on pricing decisions, and ensure data-driven decision making.

Data Engineer needed for a contract position (until end of 2026) in Espoo. 2-5 years of experience required with modern data platforms, SQL, and at least one programming language (e.g., Python). Experience building data pipelines and integrations is essential. Fluent English communication skills are required. Experience with Azure data services and/or Spark is a plus.

Who We Are Seaberry is a Finnish startup born in the cloud. We build and operate managed cloud services for enterprise customers, not by following playbooks written by someone else, but by designing the service models ourselves and owning the delivery end to end.

Mechanical Product Engineer (Documentation & Engineering Support) strengthens the interface between mechanical design, production, and documentation. Responsibilities include preparing and maintaining production documentation, reviewing designs for manufacturability, and supporting engineering change management.

Lead product development for mobile apps and edge solutions used by field technicians and customers globally. Manage features including machine diagnostics, parameterization, and cloud-based backup/restore capabilities. Collaborate with a cross-functional team of developers and test automation engineers.

Leads creative production for brand campaigns, managing a team of producers and building AI-powered production frameworks. Manages stakeholders, prioritizes resources, and ensures production aligns with commercial goals. Requires 10-15+ years of experience in creative production or campaign management, leadership experience, and a tech-forward mindset.

Senior Researcher to lead R&D projects, evaluate chemical reactions, and collaborate with engineering. Requires M.Sc. or higher in organic/synthesis chemistry, 10+ years R&D experience, and 3+ years managerial experience.

Provide technical support for Danfoss drives to customers and service partners in Finland and the Baltic region. Support Vacon® and VLT® frequency converters and collaborate with colleagues to ensure a high-quality support experience.

Field Product Manager for Diabetes Care portfolio in Finland. Manages product launches, marketing campaigns, and sales actions. Requires 3+ years of Diabetes Care experience, marketing knowledge, and fluency in Finnish and English.

Strategy & Business Development Manager will drive strategic initiatives across Reaktor, a global technology company. Responsibilities include ensuring strategic priorities are aligned with market developments, leading annual planning, and contributing to M&A strategy.

Senior People Business Partner to align people strategy with business objectives, coach leaders, and drive talent initiatives. Experience supporting senior leaders in a global, fast-paced environment required.

Senior Advisor, Fintech & AI will shape strategic deals, engage with senior clients, and build Fintech and AI offerings. The role requires experience as a trusted advisor in complex client situations, understanding of technology and business impact, and experience with AI-assisted development.

Senior Software Engineer will design, build, and maintain production services and features for Oura's consumer experiences. Collaborate with cross-functional squads to deliver high-quality functionality. Take end-to-end ownership of problems, from requirements to release and iteration. Improve code quality, performance, and reliability. Mentor other engineers.

Special educator will plan, implement, and assess individualized student support. Provide expert consultation and collaborate with parents and external networks.

Records Management Specialist to execute and manage document control activities. Supports development and maintenance of document management procedures and guidelines. Ensures compliance with corporate standards and industry best practices.

Design, implement, and optimize PHY-layer firmware algorithms for advanced multi-antenna wireless systems. Translate system-level and algorithmic requirements into production-ready firmware. Drive FW integration and bring-up on target hardware. Analyze performance, latency, and resource usage. Debug and resolve complex performance, robustness, and reliability issues.