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Software Engineer, Backend

Cosm

$105,000 - $140,000
Sep 6, 2025
Los Angeles, CA, US
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Cosm is looking for a Software Engineer, Backend to help architect, design, and build the systems that power their digital and physical live streaming products, specifically focusing on distributed micro-services in the cloud.

Requirements

  • Expertise with Rust, Node.js (Typescript preferred), Go, Python, Java or Ruby.
  • Experience in container based (docker/kubernetes) and serverless (lambda, OpenFaaS, etc..) solutions.
  • 2+ years experience working with NOSQL and SQL database systems.
  • Experience with workflow, message broker and queuing systems (Temporal, RabbitMQ, Kafka, etc)
  • Demonstrated expertise in developing, releasing, and maintaining large-scale software applications.
  • Informed opinions on API design and library development as an author and a developer but always willing to listen to differing opinions.
  • Driven to automate your processes, test continually, and document your work.

Responsibilities

  • Help define code quality guidelines and standards, participate in code reviews and ensure that all solutions are aligned to pre-defined architectural specifications.
  • Architect, design and build robust micro-service based applications.
  • Act as subject matter expert and escalation point for the day-to-day operational activities across the landscape of applications utilized by the business
  • Work closely with product and design to develop compelling cross-platform end-to-end experiences across multiple features and products.
  • Automate repetitive and complex tasks by developing tools and processes that our team can rely on for daily development, testing, and release management.
  • Participate in architectural, design and product sessions
  • Growing the platform to millions of concurrent users through solid architecture choices and design principles.

Other

  • 4-5 years of relevant experience as a Software Engineer
  • 2+ years experience as a Backend Engineer.
  • Bachelor’s degree in Computer Science or equivalent practical experience.
  • Exemplify excellent written and verbal communication skills and the ability to deftly tailor technical communications to any audience.
  • Passion for video live-streaming, sports and entertainment.