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Senior Server Developer (m/f/d)

Posted Oct 16, 2026

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Sandbox Interactive GmbH

10437 Berlin

EnglishSeniorNo German needed

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Salary in the ad

€46,000 to €64,000

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About this job

Who we are

Sandbox Interactive is the ambitious game development studio behind the award-winning game Albion Online. The game is the first true cross-platform MMO, and is playable on Windows, Mac, Linux, iOS and Android with more than 350.000 daily players and over 2 million monthly visitors on our website. We started as a small independent group of experienced gaming professionals in 2012, and now employ an international team of more than 100 people. Since 2020, Sandbox Interactive has been part of the Stillfront Group. Our team is passionate about making Albion Online the best game it can be, and we’re constantly on the lookout for talented individuals to join our growing team in the heart of Berlin.

Your Game

As a Senior Server Developer, you will help design, develop, and maintain the systems that keep Albion Online world running smoothly. You’ll work on backend features and services that support millions of players, ensuring stability, scalability and performance across a continuously evolving live environment.

This role requires deep technical expertise, a proactive mindset and a passion for large-scale online systems. You’ll collaborate closely with game developers and designers to deliver reliable tools, features and infrastructure that enhance the gameplay experience and support ongoing content updates.

Architect and maintain high-throughput backend systems that power Albion Online’s large-scale, persistent world
Develop and optimize server-side gameplay features, live tools and real-time networking systems using C#
Work with our Release Operations team to ensure smooth deployment of patches and content updates
Ensure system reliability, performance and scalability across global regions and large player populations
Implement monitoring and observability tools to improve issue detection and system resilience

Collaborate with client engineers and game designers to integrate gameplay logic and backend functionality

Participate in architectural discussions and technical planning for feature growth and long-term system health

Support and mentor other engineers, fostering a culture of technical pragmatism and performance

Minimum Qualifications:

5+ years of experience in backend or network programming for online or multiplayer games.
Strong proficiency in C# and experience with the Unity engine
Proven experience with client-server architecture, game server logic and live game maintenance
Solid understanding of database systems (SQL/NoSQL), cloud environments and distributed server infrastructure
Experience with performance optimization, debugging, and profiling in large-scale systems
Excellent communication skills (presentation, verbal and written) in English

Preferred Qualifications:

Experience working on MMORPGs or sandbox games
Familiarity with Albion Online or similar persistent-world systems
Understanding of live operations workflows, including event management, hotfixing and content rollout
Knowledge of DevOps practices, monitoring tools and CI/CD pipelines
Passion for games and player-driven online experiences

BVG corporate ticket :
Receive a free company ticket for Germany's public transportation system
Personal Development:
Have a high degree of autonomy and ownership from the start
Develop your skills through company-sponsored training and language courses
Enjoy company-sponsored tickets for Gamescom Dev & other game conferences
Hybrid Work model:
Combine the best of both worlds, and enjoy the freedom to switch between working in the office and working remotely
Health & Wellbeing:
Discounted membership to Urban Sport Club for fitness and wellness
Access to nilo health for confidential mental health support, coaching, and wellbeing resources
Extra vacation days awarded based on years of service, up to a maximum of 30 days annually
Modern & Well-Equipped Office :
Work in the heart of Prenzlauer Berg, a central, vibrant neighborhood in Berlin with many dining and entertainment options
Enjoy height-adjustable tables, ergonomic chair options, dimmable lighting, and acoustic panels
Start-up perks :
Benefit from free drinks and snacks in the office
Participate in team events, breakfast weeks, summer and winter parties
Sustainable business :
Be part of a successful, profitable company on a continued growth path
Gaming-driven culture :
Work alongside a supportive team of gaming enthusiasts who are deeply committed to their craft
Global reach :
Join a team of industry experts shaping a game enjoyed by hundreds of thousands worldwide

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Job facts

Employer: Sandbox Interactive GmbH
Role: Senior Server Developer (m/f/d)
City: 10437 Berlin
Work mode: not stated
Language: English
Seniority: Senior
Posted: Oct 16, 2026
Source: StepStone

Company rating

Glassdoor 4.1
16 reviews
View on Glassdoor

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Broad estimate: €44,000–€58,000/year

€37,000 to €54,000

Source: Statistisches Bundesamt (Destatis), table; dl-de/by-2-0; StarIn's calculation