I am Stefan Roos, an AI-native software architect and developer with a passion for building scalable, maintainable systems. I have led complex frontend/backend projects and cloud migrations, and I place a strong emphasis on architecture, quality, and collaboration. In addition to my software work, I co-founded BF3: Reality Mod, where I led a large volunteer team to create a feature-rich game editor and community-driven project that reached a global audience. I enjoy turning ambitious ideas into robust solutions and sharing knowledge through mentorship and clear documentation. Outside of work, I thrive in creative pursuits, having built a long-running electronic music career and a bias for hands-on tooling and prototyping. My diverse experience helps me bridge technical excellence with user-centric designs and effective teamwork across distributed environments.

Stefan Roos

I am Stefan Roos, an AI-native software architect and developer with a passion for building scalable, maintainable systems. I have led complex frontend/backend projects and cloud migrations, and I place a strong emphasis on architecture, quality, and collaboration. In addition to my software work, I co-founded BF3: Reality Mod, where I led a large volunteer team to create a feature-rich game editor and community-driven project that reached a global audience. I enjoy turning ambitious ideas into robust solutions and sharing knowledge through mentorship and clear documentation. Outside of work, I thrive in creative pursuits, having built a long-running electronic music career and a bias for hands-on tooling and prototyping. My diverse experience helps me bridge technical excellence with user-centric designs and effective teamwork across distributed environments.

Available to hire

I am Stefan Roos, an AI-native software architect and developer with a passion for building scalable, maintainable systems. I have led complex frontend/backend projects and cloud migrations, and I place a strong emphasis on architecture, quality, and collaboration. In addition to my software work, I co-founded BF3: Reality Mod, where I led a large volunteer team to create a feature-rich game editor and community-driven project that reached a global audience. I enjoy turning ambitious ideas into robust solutions and sharing knowledge through mentorship and clear documentation.

Outside of work, I thrive in creative pursuits, having built a long-running electronic music career and a bias for hands-on tooling and prototyping. My diverse experience helps me bridge technical excellence with user-centric designs and effective teamwork across distributed environments.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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Language

German
Fluent
English
Advanced

Work Experience

Software Architect at Glaux Group AG
January 1, 2021 - December 31, 2024
Software architecture & full-stack development; large-scale API refactoring to improve maintainability; enabled document management integration in a WPF application using Windows SDK and Interop; implemented a solution-wide, context-aware shortcut hierarchy to improve WCAG 2.0 compliance and application responsiveness.
Senior Software Engineer at ti&m AG
January 1, 2020 - December 31, 2021
Project lead for the UBS platform myPension; achieved significant revenue growth by delivering high-quality software and consulting; authored annual proposals with deliverables, timelines, and pricing; onboarded and led multiple developers; advised on architecture and security; collected and visualized user and performance metrics with Prometheus and Grafana; designed automated testing and performed load testing; authored Arc42 software architecture documentation.
Professional Software Engineer at ti&m AG
January 1, 2020 - December 31, 2021
Full-stack development for UBS myPension; implemented retirement scenario simulations; performed extensive refactors to improve performance, scalability, and maintainability; contributed to architecture redesigns and ongoing code quality improvements.
CO-FOUNDER, PROJECT LEAD & DEVELOPMENT LEAD at BF3: Reality Mod
January 1, 2024 - Present
Co-founded a total-conversion mod for Battlefield 3; built and led a 90+ person team across 5 departments (project management, development, QA, marketing, community management); led game design, tooling, and a feature-rich 3D editor; produced marketing content and secured large audience exposure via influencers; guided development for a long-running community project.
Electronic Music Producer & DJ at Theydream
January 1, 2015 - December 31, 2022
Co-founded the artist duo Theydream; released 15 EPs with millions of streams; signed to Fckng Serious; designed and executed a focused marketing strategy; performed 200+ live gigs worldwide.
CO-FOUNDER, PROJECT LEAD & DEVELOPMENT LEAD at BF3: Reality Mod
January 1, 2017 - Present
Co-founded a total conversion modification for Battlefield 3 using reverse-engineering tools. Built and led a large team (90+ volunteers across 5 departments) and oversaw up to 20 engineers. Responsible for game design, requirements engineering, and the development of a sophisticated 3D multiplayer editor; implemented performant client/server logic and external tooling. Coordinated marketing, community management, and strategic direction; guided feature testing and a Venice Unleashed framework integration to support BF3: Reality Mod.
SOFTWARE ARCHITECT at Glaux Group AG
January 1, 2019 - December 31, 2020
Software architecture & full-stack development. Refactored a large-scale API for improved maintainability, enabled seamless document management integration in a WPF app via Windows SDK/Interop, and implemented a system-wide WCAG 2.0-compliant shortcut hierarchy for better accessibility and responsiveness.
SOFTWARE ENGINEER at ti&m AG
January 1, 2021 - December 31, 2022
On-site full-stack development with WPF / C# .NET for the Cantonal Bank of Lucerne (LUKB). Refactored and improved Market Data Observer, added ad-hoc market data adjustments features, and redesigned the frontend for a better UI/UX and trading performance.
Internship & Junior Software Engineer at Root Service AG
January 1, 2010 - December 31, 2011
Full-stack development with WinForms / WPF / C# .NET; redesigned UI/UX for Perigon home care administration; contributed to multiple modules and built an internal tool to streamline icon and image asset editing.
SOFTWARE ENGINEER at Schneider Software AG
January 1, 2012 - December 31, 2013
Full-stack development with WinForms / WPF / C# .NET; contributed to construction administration modules (WinBau) as part of an agile Scrum team; provided 3rd-level client support and contributed to Swissdec-certified wage accounting software.

Education

Bachelor Studies, Part-time at ZHAW Winterthur
January 1, 2012 - January 1, 2013
Bachelor Studies, Full-time at ETH Zürich
January 1, 2010 - January 1, 2011
High School Diploma at Gymnasium Friedberg, Gossau SG
January 1, 2004 - January 1, 2010
Bachelor Studies (Part-time), Computer Science at ZHAW Winterthur
January 1, 2012 - January 1, 2013
Bachelor Studies, Computer Science at ETH Zürich
January 1, 2010 - January 1, 2011
High School Diploma at Gymnasium Friedberg, Gossau SG
January 1, 2004 - January 1, 2010

Qualifications

iSAQB CPSA -A
January 11, 2030 - June 19, 2026
iSAQB CPSA -F
January 11, 2030 - June 19, 2026
iSAQB ARCEVAL
January 11, 2030 - June 19, 2026
iSAQB DDD
January 11, 2030 - June 19, 2026
Microsoft AZ-900
January 11, 2030 - June 19, 2026
Scrum – Scrum Master (course)
January 11, 2030 - June 19, 2026
Scrum – Product Owner (course)
January 11, 2030 - June 19, 2026
iSAQB CPSA-A
January 11, 2030 - June 19, 2026
iSAQB CPSA-F
January 11, 2030 - June 19, 2026
iSAQB ARCEVAL
January 11, 2030 - June 19, 2026
iSAQB CPSA-DDD
January 11, 2030 - June 19, 2026
iSAQB IMPROVE
January 11, 2030 - June 19, 2026
Microsoft AZ-900
January 11, 2030 - June 19, 2026
Scrum – Scrum Master (course)
January 11, 2030 - June 19, 2026
Scrum – Product Owner (course)
January 11, 2030 - June 19, 2026

Industry Experience

Software & Internet, Gaming, Media & Entertainment, Professional Services, Education

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
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