Senior Frontend Developer 💻

About the role Wrknest is looking for a Senior Frontend Developer on behalf of a global technology company with an established presence in Stockholm. The company develops advanced hardware and software solutions that make it easier for organizations to manage connected devices, networks and physical environments. In this role, you will join a product-focused development team working on modern, highly interactive web applications. Your focus will be on creating responsive and intuitive user experiences using React and TypeScript, while also contributing to frontend architecture, code quality and technical decisions. The role combines hands-on development with close collaboration across engineering, product and design. You will work with everything from reusable UI components and complex visualizations to AI-assisted development workflows, giving you the opportunity to influence both the product and how the team builds it. Your future responsibilities As a Senior Frontend Developer, you will take an active role throughout the development process. You will build new functionality, improve existing interfaces and help ensure that the frontend remains scalable, maintainable and performant as the product evolves. Your responsibilities will include: Developing and maintaining modular and reusable React components Building responsive and intuitive user interfaces Collaborating with designers and product managers to improve UI and UX and shape new user flows Developing scalable visualization components for device relationships, floorplans and system topologies Writing and maintaining tests to ensure quality and reliability Contributing to frontend architecture and participating in design and code reviews Working with AI-assisted development workflows, including reusable AI skills, agent definitions and specifications Reviewing and validating AI-generated code to ensure correctness and maintainability Continuously improving frontend performance, responsiveness and development practices About you To succeed in this role, you have solid professional experience in frontend development and are comfortable taking ownership of technically complex features. Requirements: At least 5 years of professional experience in frontend development or a similar role Strong proficiency in JavaScript and TypeScript Extensive experience working with React Strong understanding of programming principles, design patterns, modern web protocols and web security Experience analysing and troubleshooting technical issues A strong understanding of clean code, frontend performance and optimization Experience integrating AI-assisted workflows into frontend development, such as code review, test generation or automation Experience creating and maintaining executable specifications or living documentation alongside evolving code Familiarity with Model Context Protocol, MCP, and connecting AI tooling with internal systems Experience using AI-assisted code review as part of a development workflow Nice to have: Experience with Node.js, other programming languages or full-stack development Experience with Redux, React-Redux or redux-saga Experience with styled-components or similar styling solutions Experience with Jest or other frontend testing frameworks Experience working with multimedia such as video, audio or image optimization Experience developing interfaces for networking, mobile or IoT products Experience with visualization libraries for topology maps, hierarchical graphs or interactive layouts Experience implementing interactive UI functionality such as zooming, panning, snapping or node-link editing You enjoy solving complex technical problems and care about the details that make an interface both intuitive and reliable. You are comfortable discussing technical decisions with others, reviewing different approaches and taking responsibility for the quality of what reaches the end user. Other information Start: According to agreement Location: Central Stockholm, with a hybrid working model Employment type: Recruitment through Wrknest, with direct employment at the client company The position includes a competitive compensation package with benefits such as a wellness allowance, occupational pension, health and insurance coverage, five weeks of annual leave and flexible working hours. A background check will be conducted during the final stage of the recruitment process. About the client The client is an international technology company developing integrated hardware and software products for connected environments. Their solutions are used globally across businesses and other organizations, with a focus on making advanced technology easier to deploy, manage and scale. The Stockholm team works in an international product environment where software, hardware, design and product development come together. As part of the team, you will have the opportunity to work on products with a large global user base while contributing directly to their continued technical development. About Wrknest Engineering Wrknest Engineering specializes in helping engineers and technicians take the next step in their careers. We work with the companies of the future and offer both recruitment and consulting assignments within engineering and industry, always with people at the center. We believe in building long-term relationships and strive to be a committed and attentive partner. Through us, you have the opportunity to be part of the technological advancements shaping tomorrow’s society – in roles where your expertise makes a real difference. Our ambition is for you to enjoy your work, grow professionally, and feel proud of what you do. Learn more at www.wrknestengineering.se.