63 frontend developer English-speaking jobs in Helsinki

As a Fullstack Developer with a frontend bias, you’ll focus on building Fluxion’s grid + graph UI — where ... architecture, performance, and developer experience About You 5+ years building complex, data-intensive ... Responsibilities Build rich, interactive frontend features for modelling, scenario planning, and analysis ... collaborative platforms) with keyboard-first UX Deep expertise in React + TypeScript and scalable frontend ... into user-facing features Work end-to-end: from APIs and state management to polished UI Help shape frontend

Role Overview As a Full Stack Developer at ONEiO Cloud Oy, you will be part of a highly skilled and ... You will build new product features across both backend and frontend layers, helping global customers ... Requirements Required: Strong experience with Java and Spring Boot Experience with modern frontend ... Development & Technical Excellence Design, implement, and maintain product features across backend and frontend ... product development Proven track record building scalable web applications with strong backend and frontend

We are looking for a Junior Full Stack Developer to join our product development team. ... APIs (REST-based) and working with relational databases such as PostgreSQL Experience with modern frontend ... with PostgreSQL using ORM tools (SQLModel, SQLAlchemy) in production environments Build and maintain frontend

platform (primarily using Go; proficiency in a similar backend language is welcome) Collaborate with frontend ... reliability, scalability, and clear documentation Contribute to key architectural decisions in the developer ... technical vision and architecture Collaborative culture — work with product, content design, and developer ... string storage and distribution, seamless integration with third-party translation services, and robust developer

We’re looking for a passionate developer who thrives in a fast-paced financial environment where your ... while collaborating effectively with diverse teams You are open to working with both backend and frontend ... solution architecture with adherence to relevant standards and guidelines Contribute to both backend and frontend

Fluency: in frontend (React), backend (Node/GraphQL), and data boundaries. ... About the Role We are a Seed stage company looking for a Full‑Stack Developer to turn AI‑generated

We are looking for a solid Fullstack Developer for the Membership squad who is passionate about building ... write high-quality code with automated tests Familiarity with many of the following technologies: Frontend ... specifically in your core domain, and learn from others in the team Write testable and well-documented frontend

We are looking for a solid Fullstack Developer for the Membership squad who is passionate about building ... write high-quality code with automated tests Familiarity with many of the following technologies: Frontend ... specifically in your core domain, and learn from others in the team Write testable and well-documented frontend

Preferred Experience Experience designing enterprise or developer‑focused software, especially for ... Working knowledge of software development concepts (e.g., frontend frameworks, APIs, system architecture

Preferred Experience Experience designing enterprise or developer‑focused software, especially for ... Working knowledge of software development concepts (e.g., frontend frameworks, APIs, system architecture

Senior Software Engineer will design, code, and maintain web applications, APIs, and infrastructure components using Java/Spring. Requires 7-10 years of application design and development experience, expert-level knowledge of Java and Spring Framework, and experience with REST and SOAP Web Services.

Champion best practices in frontend development within the team. ... we’d love you to do (and love doing) Develop and maintain high-quality, responsive, and scalable frontend ... You identify as frontend‑leaning, but you are comfortable navigating backend codebases (e.g., Java, Kotlin ... primary focus is the UI, you will extend backend services and adjust API endpoints as needed to support frontend

We are seeking a backend-focused Senior Full Stack Developer with a pragmatic architectural mindset ... Full Stack Delivery: Develop and maintain our frontend React applications and overall system architecture

Work across the stack when needed - from frontend logic to backend APIs and AI integrations. ... An experienced developer with hands-on experience building apps with Expo and React Native .

Proficiency in JavaScript and modern frontend frameworks such as React. ... Solve complex workflow problems and implement enhancements in frontend and backend services based on ... Understanding of REST architecture, SPA approach, micro-frontend architecture, common software design

These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft

Strong experience in frontend development using JavaScript/TypeScript and React. ... Main Responsibilities Design and develop backend and frontend software for a service application enabling

the existing by producing clean, well-tested, well-documented, and elegant backend and occasionally frontend ... consider as an asset: Experience in developing system and acceptance test automation Experience in frontend

backend or frontend development. ... You strive to be a full‑stack Salesforce developer, even though your current skills might lean more towards

Model-Based Design (MBD) Developer We are looking for an experienced Model-Based Design (MBD) Developer