> Markdown version of [/jobs/ext/4578544-senior-design-engineer](https://www.wearedevelopers.com/jobs/ext/4578544-senior-design-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Design Engineer - **Company:** Jobgether - **Location:** Germany (Remote available) - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** HTML, Web Accessibility, Application Programming Interfaces (APIs), Artificial Intelligence, Cascading Style Sheets (CSS), TypeScript, ReactJS, Figma, Front End Software Development, Api Design - **Published:** November 5, 2026 - **Apply:** https://www.adzuna.de/details/5951955030 ## About the Role * At least 5 years of experience building user interfaces in design engineering, front-end development, or a design-focused engineering role. * Deep knowledge of React and TypeScript, alongside strong foundations in HTML, CSS, and web accessibility. * Solid understanding of APIs, including the ability to interpret documentation, work with real data, understand developer needs, and contribute to API design decisions. * A portfolio demonstrating both design work and implemented, production-quality interfaces. * Recent practical experience using AI in design and engineering workflows, with a clear understanding of where AI adds value and where it falls short. * Experience contributing to a design system that is actively used by product or engineering teams. * Ability to work independently, taking an initial idea or loosely defined problem through to a shipped feature without requiring a detailed specification. * Strong collaboration and communication skills, with the ability to explain design decisions to engineers and technical constraints to designers. * Excellent written communication skills, particularly important in a remote-first working environment. * Strong attention to detail and a passion for refining the finer aspects of interface quality, including transitions, spacing, and edge cases. * Interest in the energy transition and motivation to contribute to technology that supports electrification and more flexible energy use. ## Description We are looking for a hands-on Design Engineer who bridges the gap between product design and front-end development. You will turn ideas and designs into polished, production-ready interfaces across a platform used by energy retailers and developers, customer-facing connection flows, and the company website. Working closely with designers, engineers, and product managers, you will help shape the tools and experiences supporting the transition to a smarter, more flexible energy system. You will have significant ownership in a small, senior team where your work moves directly into production. The role also offers an opportunity to influence design systems, front-end practices, and the practical use of AI in creative and engineering workflows. Accountabilities * Build, develop, and ship production-ready user interfaces across the core platform, customer-facing connection experience, and website, working directly in the codebase. * Contribute significantly to the design system in collaboration with front-end engineers, developing and maintaining components, design tokens, and documentation. * Keep the design system aligned across Figma, code, AI-assisted tools, and other workflows. * Create interactive prototypes in code to explore concepts, test ideas with customers and colleagues, and validate directions before full implementation. * Improve the quality of user experiences by refining interactions, motion, accessibility, performance, and interface details. * Collaborate with engineering teams to improve front-end development, review, and release processes, ensuring design intent is consistently reflected in production. * Work with engineers on API design and improvements, helping make developer-facing interfaces clear, intuitive, and easy to integrate. * Develop tools and prototypes that strengthen collaboration between design and engineering. * Help shape the team's use of AI for prototyping, exploration, development, and workflow improvement, while recognizing its limitations. * Take ownership of projects from early concepts through implementation and release, contributing to a high standard of design and engineering craft.