Senior Backend Engineer — Elixir & Scalable APIs

Fireworkhq; Hong Kong; Hybrid; HKD 520,000 - 760,000; Full time

Job summary

Firework is seeking a Sr. Backend Engineer to join our global team. You will design, implement and optimize backend services using Elixir Phoenix, PostgreSQL, and in-memory stores to handle billions of requests per day.

You will collaborate with product managers and engineers to deliver scalable, high-performance systems across multiple platforms. Ideal candidates bring 4+ years with Elixir, strong SQL data modeling, and experience with video streaming tech, WebRTC, and AI/ML integrations.

Qualifications

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

Responsibilities

• Collaborate with product managers, designers, and engineers to design scalable solutions across platforms.

Skills

Elixir

RESTful services

SQL/Data modeling

Adaptability

Data-driven mindset

Startup mindset

Go

Python

FFmpeg

GStreamer

Video codecs

WebRTC

AI/ML

GraphQL

Education

Bachelor's degree in computer programming or computer science

Tools

Python

PostgreSQL

Job description

Firework is seeking a Sr. Backend Engineer to join our global team. You will design, implement and optimize backend services using Elixir Phoenix, PostgreSQL, and in-memory stores to handle billions of requests per day.

You will collaborate with product managers and engineers to deliver scalable, high-performance systems across multiple platforms. Ideal candidates bring 4+ years with Elixir, strong SQL data modeling, and experience with video streaming tech, WebRTC, and AI/ML integrations.