Simplify Logo


Principal Frontend Engineer

Confirmed live in the last 24 hours

Blitz App

Blitz App

51-200 employees

Gaming coaching app with performance analytics

Data & Analytics
Robotics & Automation
Consumer Software

Compensation Overview

$220k - $260kAnnually

+ Performance Bonus + Stock Options Program + 401(k) Matching

Senior, Expert

Los Angeles, CA, USA

Frontend Engineering
Software Engineering
Required Skills
  • 7+ years of professional front-end development experience
  • Proficiency in TypeScript and modern JavaScript frameworks and libraries
  • Strong understanding of advanced JavaScript concepts, including IndexedDB, Proxy, Symbols, and state management libraries such as Valtio
  • Experience with Rust and its integration with front-end technologies is a plus
  • Proven experience in developing and optimizing service worker scripts for caching
  • Excellent problem-solving skills and ability to understand and untangle complex codebases
  • Strong emotional intelligence and communication skills, with the ability to collaborate effectively with cross-functional teams
  • Experience with performance tuning and building high-performance applications
  • Ability to mentor and lead junior developers
  • Analyze and understand the existing complex codebase, including bespoke systems and advanced front-end techniques
  • Refactor, optimize, and simplify the codebase to ensure scalability and maintainability
  • Implement state management solutions using technologies such as IndexedDB, Proxy, Symbols, Valtio, and other advanced JavaScript concepts
  • Write clean, efficient, and well-documented code in TypeScript
  • Develop and maintain service worker scripts for caching and performance improvements
  • Collaborate with other developers to ensure smooth integration of front-end components with back-end services
  • Conduct code reviews and provide mentorship to junior developers
  • Work on performance tuning and optimization of the application to ensure high-speed and efficient functionality
  • Stay up-to-date with the latest front-end technologies and best practices

Blitz focuses on enhancing the gaming experience by offering a unique app that serves as a personal gaming coach. Using advanced computer vision and data analytics, the company supports personal improvement in popular games such as League of Legends and Fortnite by providing crucial performance insights and real-time statistical overlays. This focus on leveraging technology to augment user skills in a dynamic industry highlights a culture of innovation and expertise, making it an appealing environment for tech professionals passionate about gaming and software development.

Company Stage


Total Funding



Berkeley, California



Growth & Insights

6 month growth


1 year growth


2 year growth