frontend developer English-speaking jobs in Seinäjoki

Normet seeks a Summer Trainee, Mechanics to join the Concrete Spraying team in Iisalmi from May 4th to August 28th, 2026. The trainee will participate in maintenance engineering and on-call support, including troubleshooting.

Experienced Commercetools Developers (Backend/Fullstack) needed for a customer project. Strong JavaScript/TypeScript skills and knowledge of Commercetools API are required. Experience with REST and GraphQL APIs, cloud-native application development, and automated testing is essential. Familiarity with frontend frameworks and headless/microservices architectures is a plus.

Language Bear seeks experienced native Finnish Content Writers, Translators, and Editors for iGaming projects. Applicants must have experience with iGaming-related texts and demonstrate flawless writing skills.

Develop and design data-driven services and solutions for the Lakehouse Analytics platform. Work in diverse teams with top-level developers and customer experts.

Senior Data Architect to design and oversee scalable, secure, and high-performance data systems for a pan-European organization. Lead a team of data professionals, ensuring adherence to global standards and best practices. Requires proven experience in designing data architectures within cloud platforms (Azure, AWS, or GCP), ETL development, and data processing frameworks (PySpark or Polars).

Design and build AI/ML infrastructure in hybrid environments (AWS cloud and on-premises Kubernetes). Implement MLOps practices, including LLM model serving, monitoring, and logging. Create integration patterns and APIs for business teams to consume AI services. Ensure security and compliance for AI workloads in a regulated environment.

Staff Product Designer for the Pay Ecosystem team. Lead design for your domain, making strategic design and user-experience decisions. Partner with cross-functional teams to understand customer needs and build solutions. Contribute to design system, participate in critiques and reviews, and lead cross-domain initiatives.

The HV Substation Commissioning Engineer oversees the commissioning and integration of new high-voltage electrical substations. Responsibilities include managing the commissioning process, coordinating testing and system integration, and ensuring compliance with technical, safety, and regulatory requirements.

Head of B2B Growth Marketing & ABM will design and scale ABM across industries and ICP tiers. Responsibilities include demand generation, paid strategy, website optimization, and performance reporting. Requires 7+ years of experience in B2B SaaS growth, ABM, and sales alignment.

Mechanical Engineer will design and develop next-generation X-ray detectors, from concept to production. Responsibilities include mechanical architecture, detailed design, manufacturing jigs, CAD models, and collaboration with cross-functional teams. Requires 5+ years of experience in mechanical design, experience designing enclosures for electronics with thermal loads and EMC considerations, and proficiency in system-level design and DFM/DFA.

Optimization & Machine Learning Engineer will build, evaluate, and maintain ML/AI/optimization components for industrial energy systems. Responsibilities include modeling real-world industrial energy operations, working with the team to iterate on assumptions, and using AI tools to accelerate development. Strong mathematical foundation, applied modeling background, and real-world problem-solving skills are required.

The Account Manager develops and executes sales strategies for Optoma's B2B & Pro AV product range in Finland & Norway. Responsibilities include managing key accounts, achieving sales targets, and collaborating with partners and marketing to drive brand awareness and sales.

Senior Java Backend Developer needed for distributed data processing. Design, develop, and maintain stream and batch processing pipelines. 3+ years Java experience and hands-on distributed data processing systems required.

Technical Presales Specialist will partner with sales, customers, and engineering teams to define optimal Grid Automation and Substation Automation solutions. Deliver technical presentations, demonstrations, and workshops, and design tailored technical proposals.

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.

Leads Mepco product strategy and prioritization, translating customer insights into product decisions. Collaborates with product owners, engineering, and stakeholders to drive product improvements and manage the product lifecycle. Requires 5+ years of product management experience, ideally in complex B2B SaaS, and fluency in Finnish and English.

Senior Solutions Engineer will build client relationships, demonstrate Databricks' Data Intelligence Platform, and contribute to the technical community. Requires familiarity with client interaction, Big Data Analytics, and a major public cloud platform.

Staff Product Manager will lead a key product framework at Deel, building and scaling complex B2B onboarding products. Requires 7+ years of experience in Product Management, including 2+ years as a Senior/Staff Product Manager. Experience with regulated products and a fast-paced, high-velocity environment is essential.

Heltti seeks an Information Systems Manager to develop and maintain its internal IT environment with a focus on information security, compliance, and system architecture. Responsibilities include co-leading the development of the ISMS, overseeing IT support and SaaS partners, and leading IT procurement and implementation projects.

Program Engagement Lead for Construction, Commissioning & Quality team. Collaborates with Program Managers to launch RFPs for commissioning and quality services. Supports Statement of Work process and CxA/QA onboarding. Monitors deliverables, ensures compliance with program requirements, and actively participates in project meetings.