Backend Developer

Ambition; Hong Kong; On-site; HKD 480,000 - 640,000; Full time

Job summary

Ambition in Hong Kong is seeking a Backend Engineer to design, scale, and maintain cloud-native banking services. You will work in small cross-functional teams focusing on delivery, robust architecture, and production excellence.

Responsibilities include building scalable microservices with Kotlin or Java, implementing event-driven architectures with Kafka, and deploying on AWS with container orchestration. You will own tests, CI/CD, and incident response to ensure uptime and security.

Qualifications

• Experience with Kotlin/Java and distributed systems.

Responsibilities

• Design, build, and maintain scalable backend microservices and RESTful APIs.
• Develop event-driven systems using event streams (e.g., Kafka) and relational databases.
• Deploy services via container orchestration on cloud platforms (e.g., AWS) with a DevOps mindset.
• Write clean, testable code with strong unit/integration test coverage and manage CI/CD pipelines.
• Monitor live systems, respond to incidents, and ensure security and uptime.

Skills

Kotlin/Java

Distributed systems

Microservices

Event-driven

API design

AWS/cloud

CI/CD

Containerization

Automated testing

Collaboration

Tools

Kafka

Relational DBs

Kubernetes

Docker

AWS

Job description

As a Backend Engineer, you will design, scale, and maintain high-availability cloud-native banking services in Hong Kong. Working within small, cross-functional teams, you will focus on continuous delivery, robust architecture, and production excellence.

Core Responsibilities

• Service Engineering: Design, build, and maintain scalable backend microservices and RESTful APIs using Kotlin or Java.
• Architecture & Data: Develop event-driven systems using event streams (e.g., Kafka) and relational databases.
• Cloud & Operations: Deploy services via container orchestration on cloud platforms (e.g., AWS) following a "you build it, you run it" DevOps philosophy.
• Quality & Automation: Write clean, testable code with strong unit/integration test coverage and manage automated CI/CD pipelines.
• Production Reliability: Monitor live systems, respond to operational incidents, and ensure system security and uptime.

Key Qualifications & Experience

• Technical Proficiency: Expertise in Kotlin or Java, distributed systems design, and microservices architecture.
• Data & API Design: Proven experience with event-driven architecture, event streaming, relational databases, and backward-compatible API development.
• Infrastructure & CI/CD: Hands-on experience with AWS (or similar cloud providers), containerization, orchestration, automated testing, and CI/CD pipelines.
• Modern Tooling: Familiarity with AI-assisted software development workflows.
• Soft Skills & Ownership: Strong cross-functional collaboration, active communication, and a results-oriented mindset with end-to-end ownership of production systems.