> Markdown version of [/jobs/ext/2121913-senior-backend-engineer-golang-castle-busters](https://www.wearedevelopers.com/jobs/ext/2121913-senior-backend-engineer-golang-castle-busters). 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 Backend Engineer (Golang) - Castle Busters

- **Company:** VOODOO SAS
- **Location:** Barcelona, Spain
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Unix, Video Game Development, NoSQL, SQL Databases, Build Server, Backend, Api Design, Golang
- **Published:** August 19, 2026
- **Apply:** https://www.buscojobs.com.es/senior-backend-engineer-golang-castle-busters-en-barcelona-ID-367920524

## About the Role

You join a focused internal studio working on a high-potential prototype, leveraging Voodoo's shared backend to scale a competitive PvP experience.
You partner with client engineers and game designers to evolve APIs, player-state management, and server authority.
You will shape the architecture, impact game economics, and drive the transition toward a trusted, centralized game state.
This is a pivotal position with a strong focus on scalable backend systems and game-scale challenges.
Compensaciones / Beneficios * Build server-side validation for metagame components (currency, upgrades, chests, progression) * Move toward server authority for competitive features and centralized game state * Design APIs and player-state management for Unity client integration * Develop cross-functional infrastructure, API design, and server-to-client split of responsibilities * Collaborate with client engineers and game designers from design to delivery * Contribute to leveraging and evolving the shared gaming backend platform Responsabilidades * 7+ years of backend development experience * Fluency in Golang (minimum 1 year professional) * Mastery of SQL and NoSQL * Background in high-scale systems * Unix-like environment experience * Experience in cross-functional agile teams * Strong analytical and problem-solving skills * Excellent communication and collaboration skills * Ability to work autonomously * Deep interest in game development (plus) Requisitos principales *
Best-in-class compensation * Benefits according to country of residence

## Description

Experteer Overview In this role you design and implement the server-side foundation to transform Castle Busters from client-driven to server-validated multiplayer.You join a focused internal studio working on a high-potential prototype, leveraging Voodoo's shared backend to scale a competitive PvP experience.You partner with client engineers and game designers to evolve APIs, player-state management, and server authority.You will shape the architecture, impact game economics, and drive the transition toward a trusted, centralized game state.This is a pivotal position with a strong focus on scalable backend systems and game-scale challenges.Compensaciones / Beneficios * Build server-side validation for metagame components (currency, upgrades, chests, progression) * Move toward server authority for competitive features and centralized game state * Design APIs and player-state management for Unity client integration * Develop cross-functional infrastructure, API design, and server-to-client split of responsibilities * Collaborate with client engineers and game designers from design to delivery * Contribute to leveraging and evolving the shared gaming backend platform Responsabilidades * 7+ years of backend development experience * Fluency in Golang (minimum 1 year professional) * Mastery of SQL and NoSQL * Background in high-scale systems * Unix-like environment experience * Experience in cross-functional agile teams * Strong analytical and problem-solving skills * Excellent communication and collaboration skills * Ability to work autonomously * Deep interest in game development (plus) Requisitos principales * Best-in-class compensation * Benefits according to country of residence


## Related Videos

- [Build and Deploy a Fullstack App with Open Source Tooling](https://www.wearedevelopers.com/videos/775-build-and-deploy-a-fullstack-app-with-open-source-tooling)
- [Go with the Flow: Stop the Leaks Before Your Memory's a Waterfall!](https://www.wearedevelopers.com/videos/100073-go-with-the-flow-stop-the-leaks-before-your-memory-s-a-waterfall)
- [Leveraging Real time data in FSIs](https://www.wearedevelopers.com/videos/806-leveraging-real-time-data-in-fsis)
- [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security)
- [Scoring 2000 Products per Request: Performance Pitfalls in Golang](https://www.wearedevelopers.com/videos/2073-scoring-2000-products-per-request-performance-pitfalls-in-golang)
- [NoSQL Data Modeling for Front-end Developers](https://www.wearedevelopers.com/videos/297-nosql-data-modeling-for-front-end-developers)

## Related Articles

- [Backend Developer Salary in Germany [2023]](https://www.wearedevelopers.com/magazine/196-backend-developer-salary-in-germany-2023)
- [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers)
- [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)
- [What’s the Difference Between Frontend and Backend Development?](https://www.wearedevelopers.com/magazine/240-what-s-the-difference-between-frontend-and-backend-development)
- [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)
- [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)