Staff Backend Software Engineer

TLDR

Collaborate in a global team to design and build scalable APIs using Elixir, while mentoring engineers and driving engineering standards in a fast-paced, innovative environment.

What you’ll be doing
  • Partner closely with product managers, designers, and engineering teams to translate product vision into robust technical solutions

  • Design and build scalable APIs using the Elixir Phoenix framework that power our core products and services

  • Architect efficient data models and write optimized PostgresQL and Cassandra queries, creating high performance indexes to support large-scale data workloads

  • Working with in-memory data stores, such as Redis, to improve scalability and responsiveness

  • Lead complex debugging and incident resolution across the entire stack using logging and monitoring tools 

  • Guide and mentor engineers through thoughtful code reviews, sharing expertise and helping elevate the team’s technical capabilities 

  • Drive improvements to engineering standards, tooling, and processes

  • Ensure coherence of all aspects of projects as an integrated system and uphold overall technical quality

  • Contribute to technical strategy by identifying opportunities for new programs, products, or features by monitoring industry developments and trends

  • Help define and evolve development practices, including technology choices, architectural patterns, workflows and coding standards to support a high-performing engineering organization

  • We’ll be excited if you have
  • Bachelor’s degree in computer programming, computer science, or a related field; advanced degree is a plus

  • 6+ years of experience with Elixir designing and building high-performance RESTful web services serving billions of requests per day

  • High-level experience with SQL infrastructure and data modeling

  • Comfortable with change: ability to demonstrate comfort with ambiguity, adapt quickly and be effective in new situations in a highly dynamic setting

  • Data-driven but also imaginative and intuitive in coming up with ideas and solutions

  • Must possess a start-up mindset: hunger to learn quickly and the ability to balance multiple priorities in a fast-paced team environment 

  • A BIG PLUS if you have
  • Experience with GoLang or Python

  • Expertise with video streaming libraries such as FFmpeg or GStreamer

  • Experience working with video/audio codecs

  • Experience working with live streaming encoders and WebRTC

  • Experience working with AI/ML models and applications

  • Experience in building large-scale applications with Python

  • Experience writing GraphQL queries and mutations

  • Locations

    The role is hybrid and we are looking for candidates in China and Hong Kong. Candidates outside the location are encouraged to apply though must be willing to relocate.


    Don’t hold back

    We understand some candidates may see the above and not apply because they don’t meet all the qualifications. We encourage you to apply anyway; we often find talented candidates that fit many other opportunities we have and look for potential too, not just what you did in the past.  As an equal employment opportunity employer, we are a diverse team that strives for an inclusive environment for all. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, age, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws.

    Firework is an innovative video commerce and livestreaming platform that empowers businesses to create engaging shoppable videos, transforming the online shopping experience. Designed for brands and retailers, it integrates interactive digital experiences with the energy of in-store engagements, enhancing customer connections and driving conversions. Firework stands out by harnessing AI technology to provide a rich, seamless framework for connected commerce.

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