Senior Full-Stack Engineer for Immersive Experiences

Cosm; Los Angeles (CA); On-site; USD 135,000 - 145,000; Full time

Job summary

Cosm is seeking a Senior Software Engineer to help architect, design and build the systems powering our venues, websites, and displays. You will work across the full stack, collaborating with product and design to deliver cross-platform experiences and scale our live streaming products.

You will mentor teammates, participate in code reviews, contribute to architectural decisions, and explore AI-assisted development tools to improve token efficiency and cost.

Qualifications

• 4-5 years as Front End Engineer
• 4+ years as Full Stack Engineer
• Bachelor’s degree in Computer Science or equivalent practical experience
• Expertise with HTML, CSS, and JavaScript/Typescript
• Experience with RESTful APIs and gRPC is a plus
• Experience with AI-assisted development tools is desirable
• Passion for video live-streaming, sports or eSports is a plus

Responsibilities

• Design and build front-end and mixed front end and back end applications with an eye towards simplicity, maintainability, performance, and usability.
• Work closely with product and design to develop compelling cross-platform end-to-end experiences across multiple features and products.
• Collaborate with the team to integrate front-end applications with distributed micro-service backends via RESTful APIs and gRPC.
• Automate repetitive and complex tasks by developing and improving tools and processes for daily development, testing, and release management.
• Champion the responsible use of AI in our development workflow, including MCPs integrations with token efficiency and cost.
• Make architectural proposals and decisions to solve complicated problems, contribute in design and product sessions.
• Contribute to high-level strategic decisions withEngineering and Executive teams.
• Mentor and develop talent amongst the development team with open communication.
• Participate in code reviews, helping to set standards & follow best practices.
• Stay on top of industry trends and emerging technologies.
• Push the limits, try new technologies, take calculated risks, swing for the fences

Skills

HTML

CSS

JavaScript/TypeScript

React

Next.js

Education

Bachelor’s degree in Computer Science or equivalent

Tools

Redux

Redux Toolkit

React Context

Zustand

Node.js

Go

Python

SQL

NOSQL

Rust

Job description

Cosm is seeking a Senior Software Engineer to help architect, design and build the systems powering our venues, websites, and displays. You will work across the full stack, collaborating with product and design to deliver cross-platform experiences and scale our live streaming products.

You will mentor teammates, participate in code reviews, contribute to architectural decisions, and explore AI-assisted development tools to improve token efficiency and cost.