> Markdown version of [/jobs/ext/3716679-react-developer-for-a-b2b-saas-platform](https://www.wearedevelopers.com/jobs/ext/3716679-react-developer-for-a-b2b-saas-platform). 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). --- # react developer for a B2B SaaS platform - **Company:** Enginy - **Location:** Barcelona, Spain - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Artificial Intelligence, Software as a Service, Software Quality, Continuous Integration, Relational Databases, Software Debugging, Github, PostgreSQL, Node.Js, Performance Tuning, Software Engineering, TypeScript, Web Usability, ReactJS, Backend, Front End Software Development - **Published:** October 13, 2026 - **Apply:** https://www.jobleads.com/es/job/react-developer-for-a-b2b-saas-platform--barcelona--e99055e3016f1be4a9d1552b14f90a0ce ## About the Role * 5+ Years of professional software engineering experience with a strong frontend focus * Strong experience with TypeScript and React * Solid understanding of modern web architectures and frontend-to-API communication * Ability to work autonomously, debug complex issues, and ship high-quality code * Product and design sensibility, with care for how products feel as well as how they work * Strong communication skills * Advanced English * Ability to take initiative and own work in a fast-moving startup * Будет плюсом: UI performance optimization, design systems, accessibility testing, SSR/edge rendering, Node.js, backend work, relational databases such as PostgreSQL, CI/CD with GitHub Actions, experience in early-stage or fast-scaling startups, interest in B2B SaaS, sales tech, or automation tools ## Description Описание Enginy is building an AI-native GTM platform for modern B2B teams that combines prospecting, enrichment, intent signals, AI research, and outreach. The Barcelona-based startup is scaling internationally after raising a €5M seed round. Задачи * Develop high-quality, responsive web applications with React and TypeScript * Own dashboards, campaign builders, reporting UIs, and their supporting API layers * Work on internal tools, SSR/edge rendering, and lightweight Node.js services * Improve speed, Core Web Vitals, and developer experience * Collaborate with Product, Design, and Backend to deliver complete features focused on quality, reliability, and speed * Help shape frontend practices, code quality, and architecture as the company scales Требования * 5+ Years of professional software engineering experience with a strong frontend focus * Strong experience with TypeScript and React * Solid understanding of modern web architectures and frontend-to-API communication * Ability to work autonomously, debug complex issues, and ship high-quality code * Product and design sensibility, with care for how products feel as well as how they work * Strong communication skills * Advanced English * Ability to take initiative and own work in a fast-moving startup * Будет плюсом: UI performance optimization, design systems, accessibility testing, SSR/edge rendering, Node.js, backend work, relational databases such as PostgreSQL, CI/CD with GitHub Actions, experience in early-stage or fast-scaling startups, interest in B2B SaaS, sales tech, or automation tools Условия * Competitive salary tailored to experience; amount not specified * Performance bonuses * Flexible remuneration through Cobee * Pension plan through Arca * Discount on a premium gym with spa access * Free fresh fruit every day * Aticco office with views and an inspiring workspace * Continuous learning, including mentoring, coaching, workshops, and opportunities to attend SaaS conferences * Career growth opportunities * Team gatherings and celebrations