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Senior Design Engineer
Jobgether
Source: Headcount Labs · original listing ↗
Job data: Headcount Labs, ODbL 1.0. Job descriptions belong to their employers.
Source date: 11/2/2026
About this role
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Design Engineer based in Spain. 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. Requirements: * 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. Benefits: * Competitive compensation package. * Attractive employee stock option program. * Opportunity to contribute to an early-stage climate technology company with global ambitions. * Mission-driven, collaborative, and supportive working environment. * Access to advanced AI tools and dedicated resources to strengthen AI skills and fluency. * Dedicated time for AI learning, an internal skills library, and a budget for relevant tooling. * Remote-first working arrangements across Europe. * Option to work from an office in Oslo or access a co-working pass when needed. * Three team off-sites per year in engaging locations. * Flexible, people-first working culture. * Home-office setup stipend. How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best! [Why Apply Through Jobgether?](https://jobgether.com/how-jobgether-works) Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time. LI-CL1