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# Javascript Fullstack Engineer - Mid-Level

- **Company:** Lumenalta
- **Location:** Huelva, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), MongoDB, Node.Js, Software Systems, SQL Databases, ReactJS, Backend, Front End Software Development
- **Published:** August 26, 2026
- **Apply:** https://www.buscojobs.com.es/javascript-fullstack-engineer-mid-level-en-huelva-ID-368949761

## About the Role

3+ years of professional experience (technical assessment required)
Frontend (React.js) and backend (Node, Express, Mongo, SQL) expertise
Clean, testable, well?documented code
Advanced English fluency
The job is 100% remote, please make sure you have a comfortable office setup at your desired work location.

## Description

At Lumenalta, we create impactful software solutions that drive innovation and transform businesses. Since ****, we've partnered with visionary leaders to build cutting-edge tech, solve complex challenges, and deliver results faster through our elite teams and tech?driven approach. Join us in shaping the future of technology.What we're working onWe help enterprise clients launch digital products that reach millions of users. Solving our daily challenges requires creativity and grit. Our culture supports experimentation and growth. Experience in complex industries like Logistics, FinTech, or Media is a plus.Requirements3+ years of professional experience (technical assessment required)Frontend (React.js) and backend (Node, Express, Mongo, SQL) expertiseClean, testable, well?documented codeAdvanced English fluencyThe job is 100% remote, please make sure you have a comfortable office setup at your desired work location.LocationThis is a fully remote position open to candidates based inEurope or regions with compatible time zones. To ensure effective collaboration with our client and team, candidates must maintain a6-hour overlap with Eastern U.S. business hours.Application DeadlineThis is an evergreen opening with no set deadline; we're always excited to connect with professionals who want to help us build the future.Seniority levelMid?Senior levelEmployment typeContractJob functionEngineering and Information TechnologyIndustriesIT Services and IT ConsultingReferrals increase your chances of interviewing at Lumenalta by 2x.Get notified about new Full Stack Engineer jobs inSpain.#J-*****-Ljbffr


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