back-end developer ruby

We are seeking a motivated and skilled supervisor to strengthen our client's renovation construction team in the Helsinki metropolitan area. If you are familiar with façades, roof coverings and balconies and you are excited about delivering high-quality and sustainable construction solutions, this role could be the next step in your career. Our client...

Wärtsilä Corporation in Vaasa, Finland, seeks a Senior Full-Stack Developer to build and enhance web-based tools for its embedded automation system. The role offers hybrid remote work and collaboration within an agile development team focused on forward-looking marine and energy technologies.The candidate will translate customer needs into efficient...

Greenstep is looking for a Microsoft Fabric Consultant/Developer to join its team in Vaasa, Finland. The ideal candidate will design and implement data solutions, manage data pipelines, and develop analytics in a client-facing role.Key responsibilities include building end-to-end data solutions and acting as a trusted advisor to clients. A strong background...

Työn kuvaus Join Collo in building the intelligence layer for liquid processes. Collo, a Finnish deep-tech company, is looking for a Data Analyst or an Engineer to produce insightful analytics for well-known customers. This is a fixed-term parental leave cover, with the possibility to discuss continuing in the role after the fixed-term contract...

Our vision Every B2C brand in the world is drowning in scattered tools, missed messages, and manual work. We're building the one system that runs it all — every conversation, every channel, every lead, powered by AI. Base360 is on a mission to become the operating system that B2C brands everywhere run their business on. We're early, we're moving fast, and...

We are seeking an experienced SAP S/4HANA Integration Manager to lead the design, delivery, and governance of end-to-end integrations across SAP S/4HANA, middleware platforms, and third-party applications. The role involves managing integration requirements, architecture, testing, deployment, and stakeholder coordination to ensure seamless business process...

About the roleAs a Solution Manager, you will oversee the lifecycle of functional requirements within your area, ensuring service stability and performance. You will collaborate with cross-functional teams to design robust systems while driving efficiency through automation and optimization.Work tasksThis role involves managing the end-to-end lifecycle of...

OverviewLead end-to-end 6G radio protocol research across core areas of 6G radio technologies, including user plane design for SDAP, PDCP, RLC, MAC, QoS, and AI awareness; examine interactions between MAC and the physical layer such as L2 procedures for HARQ, scheduling, MIMO, and AI enablers; act as Nokia’s delegate representative to 3GPP RAN2 or as a...

Job Title:  Santa’s Lapland Resort Assistant/Driver Reporting to:  Santa’s Lapland Senior Resort Assistant/DriverWhat you will be doing: Pre-season Preparation: Completing Santa’s Lapland pre-season online training before you travel to resort. Successfully completing the in resort practical driver training and acclimatising to driving in the...

NVIDIA Aerial CUDA Accelerated RAN is framework for building high-performance, software-defined, cloud-native Radio Access Network functions over NVIDIA CPU/GPU/DPU based systems. We are seeking a self-motivated senior software engineer to drive development, performance and scalability of our platform. This position offers the opportunity to work on...

As a Senior Quality Engineer at Smartly, you will define and scale quality standards across our Product & Engineering organization. Operating within a small, lean group, this role is highly visible to engineering leadership and offers the opportunity to make a massive impact across the entire company. Your success will be defined by your ability to build...

Do you thrive on making internal IT work smoothly, securely and efficiently, and enjoy taking ownership of how it develops? We do. 🚀We’re looking for an experienced IT Manager to take ownership of Vincit’s internal IT for our ~500 employees. You have previous experience leading internal IT and are comfortable taking broad responsibility for...

Role DescriptionThe role mainly involves back-office tasks. You will handle tasks arriving via email and our ticketing system, support our online store and stores in various order- and product-related customer situations. Direct customer contacts by phone or chat are less frequent in this role but may be included when needed. The job requires meticulousness,...

At Hamina Wireless, we build software and hardware for Wi‑Fi, Private 5G, and IoT. We empower wireless professionals to design, deploy, and manage networks with fast, easy‑to‑use, modern tools. We’re an experienced team that values concrete results, clear thinking, and craftsmanship. We love complex problems and shipping polished software with great...

DescriptionJoin us in building a sustainable society powered by clean energy and reliable connections! We are now looking for Analytics Engineer in Helsinki.Enersense is actively building and strengthening its digital capabilities across all business lines. This role offers a unique opportunity to be part of a transformative journey where digitalization,...

About the job We are looking for a Software Engineer to join the Kapacity.io team at EnergyHub! Our team, made up of YC alumni (S21) and elite product and software talent, builds some of the most advanced flexibility solutions in the market. Kapacity.io, previously backed by Y Combinator and acquired by EnergyHub in 2024, focuses on the European energy...

About HuaweiHuawei is a leading global provider of information and communications technology (ICT) infrastructure and smart devices. With integrated solutions across four key domains – telecom networks, IT, smart devices, and cloud services – we are committed to bringing digital access to every person, home and organization for a fully connected,...

We are looking for a Senior Machine Learning Engineer to join the AI Platform Team at Smartly! Our team works on helping marketers make the most of their ad creatives (images, video, text) and campaigns (product and performance data). We build and experiment with AI-based solutions across the media and creative workflows.You will have the opportunity to take...

Siili is at the forefront of AI-powered digital development. Here, AI isn’t just a buzzword – it’s embedded in how we design, build, and scale solutions together with our clients.We are implementing our AI-centric strategy by focusing on three key areas:Staying on the cutting edge of technical innovation – from Generative AI and agentic systems to...

About Sine Engineering Sine Engineering builds the technology behind reliable drone autonomy, including communications, navigation, and control systems that enable coordinated multi-drone operations at scale. More than 200 UAV manufacturers rely on our technology, and our solutions power many of today's active interceptor operations. Through our dual-use...