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I'm Steven Nassef, a Senior Unity Engineer with 5+ years of experience building and operating large-scale mobile games played by millions of users. I specialize in monetization reliability, performance, and scalable live-ops systems. I've owned and delivered core live-ops features, led architectural decisions, and collaborated cross-functionally with design, product, QA, and live-ops teams to align technical execution with product goals. I have implemented robust IAP systems, improved error handling and diagnostics, reduced purchase-related support tickets, and built tooling to accelerate content creation and QA.…I'm Steven Nassef, a Senior Unity Engineer with 5+ years of experience building and operating large-scale mobile games played by millions of users. I specialize in monetization reliability, performance, and scalable live-ops systems. I've owned and delivered core live-ops features, led architectural decisions, and collaborated cross-functionally with design, product, QA, and live-ops teams to align technical execution with product goals. I have implemented robust IAP systems, improved error handling and diagnostics, reduced purchase-related support tickets, and built tooling to accelerate content creation and QA.

Steven Nassef

Programmer, Game Developer, Game Designer, +2

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I'm Steven Nassef, a Senior Unity Engineer with 5+ years of experience building and operating large-scale mobile games played by millions of users. I specialize in monetization reliability, performance, and scalable live-ops systems. I've owned and delivered core live-ops features, led architectural decisions, and collaborated cross-functionally with design, product, QA, and live-ops teams to align technical execution with product goals. I have implemented robust IAP systems, improved error handling and diagnostics, reduced purchase-related support tickets, and built tooling to accelerate content creation and QA.…I'm Steven Nassef, a Senior Unity Engineer with 5+ years of experience building and operating large-scale mobile games played by millions of users. I specialize in monetization reliability, performance, and scalable live-ops systems. I've owned and delivered core live-ops features, led architectural decisions, and collaborated cross-functionally with design, product, QA, and live-ops teams to align technical execution with product goals. I have implemented robust IAP systems, improved error handling and diagnostics, reduced purchase-related support tickets, and built tooling to accelerate content creation and QA.

Available to hire

I’m Steven Nassef, a Senior Unity Engineer with 5+ years of experience building and operating large-scale mobile games played by millions of users. I specialize in monetization reliability, performance, and scalable live-ops systems.

I’ve owned and delivered core live-ops features, led architectural decisions, and collaborated cross-functionally with design, product, QA, and live-ops teams to align technical execution with product goals. I have implemented robust IAP systems, improved error handling and diagnostics, reduced purchase-related support tickets, and built tooling to accelerate content creation and QA.

Skills

Unity 3D

Experience Level

Unity 3D

Expert

Language

English

Fluent

Arabic

Fluent

Work Experience

Lead Game Programmer at Umami Games

August 1, 2023 - March 1, 2025

Led core live-ops features for a live mobile title, owning end-to-end development, architectural decisions, and collaboration with Design, Product, QA, and Live Ops to ship features safely at scale. Drove the development of networked and multiplayer game features, optimized performance, improved IAP reliability, and built tooling to accelerate content creation and QA. Reduced purchase-related support tickets by improving logging, error handling, and real-time purchase failure resolution.

Lead Developer at Yajulu

December 1, 2021 - August 1, 2023

Owned development of multiple game engine features across projects from prototype to production. Designed and implemented reusable game systems, aligned technical execution with business requirements, and led development of networked and multiplayer game features. Identified and resolved performance bottlenecks and mentored other engineers.

Unity Game Developer at Kob Games Studios

May 1, 2020 - September 1, 2020

Implemented gameplay features based on core mechanics and design specs, collaborating with designers and artists to deliver polished experiences.