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# Senior Backend Engineer (Golang) - Castle Busters

- **Company:** Voodoo
- **Location:** Amsterdam, Netherlands (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Application Programming Interfaces (APIs), Unix, Video Game Development, NoSQL, SQL Databases, Build Server, Backend, Api Design, Golang
- **Published:** August 11, 2026
- **Apply:** https://nl.indeed.com/viewjob?jk=481dca46fce11c7b

## About the Role

* 7+ years of backend development experience
 * Strong knowledge of computer science fundamentals
 * Extreme fluency in Golang (At least 1 year in a professional environment)
 * Mastery of SQL and NoSQL
 * Background in high-scale systems
 * Understanding of Unix-like environments
 * Experience working in cross-functional agile teams
 * Strong analytical skills with a track record of solving complex problems related to scalability, performance, and integration in high-stakes environments.
 * Excellent interpersonal and communication skills, capable of influencing teams and interfacing effectively with various stakeholders.
 * Ability to be self sufficient and work autonomously.
 * A deep interest in game development is a plus.

## Description

You will design and build the server-side foundation that takes Castle Busters from a client-authoritative game to a competitive, server-validated one. The current game computes everything on the device - progression, economy, and match outcomes alike, which won't hold up for competitive PvP. Your job is to change that.

Working closely with client developers and game designers from feature design through delivery, validation and iteration, you will:

 * Build server-side validation for the metagame - currency, card upgrades, chest opens, and progression - staged by risk, replicating economy and reward logic on the server.
 * Move toward server authority for competitive features, where game state lives in one place and can be trusted.
 * Design APIs and player-state management that the Unity client integrates against, and help shape how client and server split responsibilities.

The responsibilities are cross-functional, ranging from infrastructure, API design & coding all the way to client-side integration (we are using Golang).

To succeed in this role, you will need to have passion for everything you do. You love to write code that scales to millions of users, are skilled at requirements gathering, champion new tech initiatives & leverage existing solutions.


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