> Markdown version of [/jobs/ext/3089405-senior-react-typescript-engineer](https://www.wearedevelopers.com/jobs/ext/3089405-senior-react-typescript-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 React/Typescript Engineer - **Company:** SQLI - **Location:** Valencia, Spain - **Contract:** Permanent contract - **Skills:** Amazon Web Services, Microsoft Azure, Software Quality, Code Review, Continuous Integration, Software Engineering, SQL Injection, TypeScript, Web Platforms, Cloud Platform System, ReactJS, Software Application Programming, Backend, Front End Software Development, NestJS - **Published:** September 26, 2026 - **Apply:** https://www.buscojobs.com.es/senior-react-typescript-engineer-en-valencia-ID-372784171 ## About the Role Job Description We're partnering with one of our clients to find a Senior Front-End Developer to join a high-performing engineering team working on modern digital platforms at scale. Develop and maintain scalable web applications using React and NestJS Collaborate closely with product managers, designers, and backend engineers Ensure code quality through testing, code reviews, and best engineering practices 5+ years of experience in software development, with a strong focus on frontend engineering ~ Proven experience building applications with React ~ Solid experience working with NestJS ~ Knowledge of testing frameworks and CI/CD practices ~ Ability to work in agile, collaborative, and international environments ~ Good communication skills in English Experience with cloud environments (AWS, Azure, or GCP) Experience in retail, ecommerce, or customer-facing digital products Permanent contract. ## Description SQLI is a European leader in digital transformation and customer experience, helping major international brands drive growth through technology.From strategy to implementation, we design and deliver high-performance architectures and engaging digital experiences by combining advanced technologies, proven methodologies, and deep technical expertise.Job Description We're partnering with one of our clients to find a Senior Front-End Developer to join a high-performing engineering team working on modern digital platforms at scale.Develop and maintain scalable web applications using React and NestJS Collaborate closely with product managers, designers, and backend engineers Ensure code quality through testing, code reviews, and best engineering practices 5+ years of experience in software development, with a strong focus on frontend engineering ~ Proven experience building applications with React ~ Solid experience working with NestJS ~ Knowledge of testing frameworks and CI/CD practices ~ Ability to work in agile, collaborative, and international environments ~ Good communication skills in English Experience with cloud environments (AWS, Azure, or GCP) Experience in retail, ecommerce, or customer-facing digital products Permanent contract.Hybrid policy work.(1 day office, 4 days home office)Individual yearly training and certification budget.Data protection notice SQLI ensures that applicants' personal data are processed as required by the EU General Data Protection Regulation (GDPR) and Spanish Law ****** on Data Protection.Personal data is processed solely for the purpose of the selection procedure.#