# Sr. Backend Software Engineer at Firework

> Hybrid · Hong Kong · Senior · Backend · open. Source: https://alderhq.app/jobs/lever%3Afireworkhq%3A5dad68ec-2191-4110-98da-91a5a50e5d4b (read 2026-11-15).

## Facts (observed)

- Company: [Firework](https://alderhq.app/companies/firework)
- Location text: Hong Kong
- Where it can be done from (inferred): Hybrid · Hong Kong (evidence: "Location: Hong Kong")
- Posted: 2026-03-20 (240 days ago)
- First seen by alder: 2026-11-02 · last verified: 2026-11-09
- Reposted: 0 times · edited: 0 times
- Apply on the employer's site: https://jobs.lever.co/fireworkhq/5dad68ec-2191-4110-98da-91a5a50e5d4b
- Skills listed (inferred): Python, Go, GraphQL, PostgreSQL, Redis, SQL

## Pay and sponsorship

- Posted pay: not posted

## Description (the employer's text)

### What you’ll be doing

Work closely with product managers, designers, and the rest of the engineering team to design, spec, and build elegant and scalable solutions across multiple platforms

Design and create new API's in the Elixir Phoenix framework to be used in our core products

Writing optimized PostgresQL and Cassandra queries and creating high performance indices

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

Debug issues across the entire stack using logging and monitoring tools

Review code by your peers, offering help and insight from your experience

Improve engineering standards, tooling, and processes

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

Strategize and develop ideas for new programs, products, or features by monitoring industry developments and trends

Define all aspects of development from appropriate technology and workflow to coding standards

### We’ll be excited if you have

Bachelor’s degree in computer programming, computer science, or a related field; advanced degree is a plus

4+ 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

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Data: alder (https://alderhq.app). Cite https://alderhq.app/jobs/lever%3Afireworkhq%3A5dad68ec-2191-4110-98da-91a5a50e5d4b and the date you read it. Observed facts come from the employer's own listing; location reach, level, family and skills are inferences.