Avalanche Ecosystem Job Board

Principal Frontend Engineer

Blitz App

Blitz App

Software Engineering
Los Angeles, CA, USA
Posted on Thursday, June 27, 2024

Blitz is a quickly growing and self-sustaining start-up that provides gamers with personalized stats and insights powered by billions of matches. High performance is at the core of our values. We are a team of gamers and entrepreneurial technologists with big ambitions. At Blitz, you will find co-workers who are friendly, eager to collaborate, and work creatively to ship market-defining software. If you thrive in an environment optimized for autonomy, innovation, teamwork, and embody our principles, Blitz is the place for you to make an outsized impact.


We are seeking a Principal Frontend Engineer to join the Blitz team where you will be instrumental in shaping a new platform that enhances gaming experiences through interactive mobile applications and dynamic overlays. Our current web and desktop application, blitz.gg, was built with a penchant for bespoke systems. We are now seeking a talented Principal Front-End Developer to ensure scalability of our product to propel our growth.

This position requires all hires to be onsite Monday through Thursday out of our Los Angeles (Playa Vista) office, with the option to WFH on Friday.

What You’ll Do

As a Principal Front-End Developer, you will be at the forefront of our efforts to streamline and optimize our existing desktop application. You will bring your deep technical expertise and high emotional intelligence to bear on a challenging codebase, simplifying and enhancing it for scalability and maintainability. You will work closely with cross-functional teams, including back-end developers, designers, and product managers, to deliver a seamless and efficient user experience.

What It Takes To Be Successful

  • 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.


  • 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.

Nice To Have

  • Bachelor's degree in Computer Science, Engineering, or a related field.
  • Strong interest in gaming.

Why Blitz?

Joining the Blitz team means embarking on one of the most intriguing challenges of your career at the intersection of video games and activity tracking. You’ll be part of a forward-thinking company that values innovative problem-solving, bias toward action, and an inclusive culture that champions personal growth and collective success. Our team members are not just employees—they are active contributors to the gaming community with a shared vision of transforming the digital landscape.

What We Offer

  • Competitive salary: $220-260k
  • Annual performance bonus
  • Unlimited vacation policy
  • 100% covered medical, dental, and vision plan
  • Stock options program
  • 401(k) matching
  • Gaming laptop and peripherals
  • Company-wide team building events

Salary for the successful applicant depends on a variety of job-related factors, including but not limited to geographic location, market demands, experience, training, and education.

Blitz is an Equal Opportunity Employer. We are committed to equal employment opportunity and the use of affirmative action programs to ensure that persons are recruited, hired, trained, transferred and promoted in all job groups regardless of race, color, religion, age, disability, national origin, citizenship status, military or veteran status, sex (including pregnancy, childbirth and related medical conditions), sexual orientation, gender identity, genetic information, and any other category protected by federal, state or local law.