> Markdown version of [/jobs/ext/3091305-backend-developer-huelva](https://www.wearedevelopers.com/jobs/ext/3091305-backend-developer-huelva). 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).

---

# Backend Developer (Huelva)

- **Company:** Responsabilidades Collaborate
- **Location:** Huelva, Spain (Remote available)
- **Contract:** Permanent contract
- **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Data Validation, Software Design Patterns, PostgreSQL, Node.Js, Object-Oriented Software Development, Systems Development Life Cycle, Query Optimization, Standard Sql, TypeScript, Web Services, Backend, Front End Software Development, Api Design
- **Published:** September 26, 2026
- **Apply:** https://www.buscojobs.com.es/backend-developer-huelva-en-huelva-ID-372758820

## About the Role

Requisitos principales Node.js, TypeScript/JavaScript proficiency
Experience with at least one other server-side language
SQL expertise with PostgreSQL, query optimization, migrations, data modeling
Strong understanding of OOP and design patterns
Designing scalable systems to handle high growth and load
API development with input validation, JWT, and secure, scalable queue-based architectures
At least 4 years of experience as a Software Engineer
Remote collaboration and proactive communication
Ownership and autonomy balanced with teamwork
Clear explanation of complex technical concepts to varied audiences
Node.js
TypeScript/JavaScript
PostgreSQL

## Description

Overview In this backend-focused role, you will help build and scale Deel's APIs and services used by global customers. You'll work with cross-functional teams to design robust features, optimize performance, and ensure a customer-centric engineering approach. This position offers the chance to impact how teams hire and pay workers across 150+ countries, at a fast-growing, globally distributed company. You'll solve complex problems in a remote-first environment and contribute to a mission-driven platform that underpins the future of work.Compensaciones / Incentivos Stock grant opportunitiesRemote work flexibilityWeWork access (optional)Competitive payInclusive benefitsCareer growth opportunitiesResponsabilidades Collaborate in a cross-functional team (Frontend, Product, Designers, QA) to deliver seamless experiencesParticipate in product planning from discovery to deployment throughout the SDLCDevelop and enhance features, APIs, and continually improve productsIdentify and fix bugs rapidly to maintain Deel speedDeliver quality engineering with a customer-centric focusRequisitos principales Node.js, TypeScript/JavaScript proficiencyExperience with at least one other server-side languageSQL expertise with PostgreSQL, query optimization, migrations, data modelingStrong understanding of OOP and design patternsDesigning scalable systems to handle high growth and loadAPI development with input validation, JWT, and secure, scalable queue-based architecturesAt least 4 years of experience as a Software EngineerRemote collaboration and proactive communicationOwnership and autonomy balanced with teamworkClear explanation of complex technical concepts to varied audiencesNode.jsTypeScript/JavaScriptPostgreSQL? Backend Developer (Huelva)? Deel? Huelva