We’re looking for a strong Full Stack Software Engineer who enjoys building scalable products, solving real engineering problems, and working closely with Product and Design teams.
This is a hands-on individual contributor role where you’ll have the opportunity to own features end-to-end — from technical design to development, testing, and delivery.

What you’ll be working on
Build and deliver high-quality back-end and front-end features across web platforms.
Design and develop reliable, scalable, and maintainable services.
Contribute to technical design, architecture, and implementation decisions .
Work closely with Product Managers and Designers to turn ideas into working solutions.
Write clean, well-tested, and well-documented code.
Participate actively in code reviews and help raise the engineering quality of the team.
Work in an Agile/Scrum environment alongside a collaborative engineering team.

Must-have technical skills
Backend – Go/Golang
Strong professional experience with Go/Golang
Goroutines, channels and concurrency
Microservices
REST APIs
gRPC and/or net/http
Strong understanding of backend/system design
PostgreSQL
Go database experience with SQL + Go, pgx, sqlx or GORM
Go testing / unit testing

Frontend – React
Strong hands-on experience with React
React + Next.js OR React Native
TypeScript
React Hooks




API integration
Experience building and supporting production-grade UIs

Testing
Experience with one or more of:
Jest
Vitest
React Testing Library
Cypress
Playwright
Component Testing
E2E Testing

Nice to have
Experience with distributed systems or high-traffic applications
Experience working with data-intensive platforms
Agile/Scrum experience
Experience integrating third-party video conferencing platforms through APIs/SDKs

What we’re looking for
We’re looking for someone who:
Takes ownership and can drive work independently.
Enjoys solving complex technical problems.
Communicates clearly with engineers, Product, Design, and stakeholders.
Is comfortable working in a fast-paced Agile environment.
Cares about code quality, testing, performance, and maintainability.
Has a Bachelor’s degree (or equivalent) in Computer Science or a related field.

Adecuado profile
Go/Golang + React/Next.js (or React Native) + PostgreSQL + Microservices + REST/gRPC + Testing
If you’re a Full Stack Engineer who loves Go on the backend and React on the frontend , we’d love to hear from you.

Interested? Email me your profile/resume.
Know someone who would be a great fit? Please feel free to share this post with them.

📌 Full Stack Engineer (Madrid)
🏢 Avance Consulting
📍 Madrid