ruby English-speaking jobs in Turku

Junior Process Specialist to support production, problem solving, and process improvement in AQT90 Flex production.

As an AI Performance Engineer, you will focus on optimizing machine learning workloads for peak hardware efficiency on AMD GPUs. Responsibilities include profiling, benchmarking, and debugging ML models and workloads to identify and address performance bottlenecks. You will collaborate with hardware, compiler, and software teams to drive improvements across the ROCm stack and communicate optimization strategies to stakeholders.

Staff Backend Engineer to design and deliver a new Trust Accounting subsystem for a vacation rental management platform. Responsibilities include architecting a greenfield system, building production-grade financial infrastructure, and driving quality and reliability. Requires 8+ years of software engineering experience, deep backend expertise, and experience building and operating critical backend systems.

Product Specialist responsible for Valtra Unlimited tyre offering. Manages material planning, coordinates with suppliers and production, and supports sales teams. Requires a Bachelor's degree and experience in supply chain, material planning, or production coordination.

Invosy Oy seeks a Back-End Developer with 2+ years of experience to design and implement scalable back-end systems and APIs using C#/.NET and SQL. Experience with REST APIs and version control (Git) is required.

Outlier seeks skilled software experts to train generative AI models. Contribute by developing evaluation criteria, reviewing system logs, and testing for vulnerabilities. Requires 2+ years of experience in backend engineering, AI automation, or complex systems integration. Strong command of at least two programming languages and SQL databases is necessary.

DeweSoft seeks a Sales Manager to drive growth in the Finnish market. This role involves managing existing accounts, generating new business, and delivering technical product demonstrations. Requires 5+ years of B2B sales experience, technical expertise, and fluency in Finnish and English.

Project Control intern will support project schedule and cost management, participate in cost analysis and planning, and monitor operational performance.

Rahmqvist Finland seeks a Country Operations & Commercial Lead to drive sales activity, support sales leaders, and build the Finnish business. This hands-on role involves leading recruitment, onboarding, creating structure, and collaborating with teams to achieve growth. Fluent Finnish and experience in sales or leadership are essential.

Drive Telia's revenue growth within the Large Corporate Customer segment through new-business acquisition. Develop prospecting plans, execute the full sales cycle, and collaborate with internal teams to deliver value-based pitches.

Senior Planner to develop, maintain, and review construction programmes for data centre projects. Lead, mentor, and motivate a team of engineers. Account management and business development activities. Minimum 5 years construction industry experience, preferably with main contractor experience. Degree in Engineering or Construction Management required. Experienced in programming software and BIM.

Qualtrics XM Process Specialist will bridge business needs and technical possibilities, transforming feedback requirements into Qualtrics solutions. Responsibilities include supporting users, translating research needs, setting up feedback processes, and managing surveys. Requires deep Qualtrics knowledge, survey creation experience, automation skills, and fluency in English.

Senior Authorised Person (SAP) for a large-scale data centre project in Finland. Responsible for safe electrical system management, control, and execution, ensuring compliance with regulations and best practices. Oversees energisation, isolation, and operational safety of high- and low-voltage systems. Requires electrical engineering qualification, Authorised Person certification, and 7-10 years' experience in SAP/AP roles on data centre or industrial projects.

Financial Analyst to build financial models, analyze asset performance, and structure complex capital stacks for real estate and corporate finance transactions.

Doctoral Researcher to develop adaptive clock and power management architectures for low-power SoCs. Responsibilities include research, design, implementation, modeling, simulation, and publication of results. Requires a Master's degree in a relevant field, IC design experience, and strong English communication skills.

Senior Product Designer will design key features for sports betting products, from concept to delivery. Experience designing complex B2C digital products with a mobile-first mindset is required. Must have expertise in Figma and UX/UI design.

Founding Engineer to build an energy trading platform from the ground up. Own technical architecture and work across the full stack, focusing on backend systems handling large volumes of electricity market and weather data. Experience building full-stack applications, ideally involving large-scale data processing or real-time systems.

The Senior Production Testing Specialist is responsible for localizing tester manufactures and delivery chains, upgrading and maintaining production test systems, and participating in solution development. This role requires a Bachelor's degree in Engineering (Electrical/Electronic) and a minimum of 5 years of experience in electrical testing and commissioning.

PR/Marketing Trainee to assist with communication, content creation, SEO, and social media management. Must be a marketing or communications student with fluency in Finnish and English.

Lead Developer at Reaktor will work with the full software development lifecycle, helping their team succeed and deliver results. Responsibilities include being the first point of contact for technical questions, collaborating with client teams, implementing new features, and improving team workflows. Requires experience in back-end, front-end, and DevOps, a minimum of eight years of relevant work experience, and fluency in Finnish and English.