Senior Backend Engineer — Remote, Health & Travel

First Circle; Hong Kong; Remote; HKD 941,000 - 1,412,000; Full time

Benefits offered by this job

Macbooks

Private health insurance

Training budgets

Travel opportunities

Job summary

First Circle is hiring senior developers to scale backend systems in a fast-growing, remote-friendly setup with offices in London, Hong Kong, Singapore and Belgrade. You’ll own production-grade services, drive features from concept to production, and collaborate closely with product and design to ship high-impact solutions.

We value a hands-on approach, with a strong emphasis on reliability, data integrity, and scalable architectures in a multi-market fintech environment.

Qualifications

• 5+ years building and operating production backend systems in Kotlin, Java, or Ruby.
• Strong foundations in APIs, databases, and data modeling for scalable systems.
• Experience in fintech, payroll, payments, or banking is a strong plus.

Responsibilities

• Build and evolve backend services and APIs that are fast, reliable, and easy to change.
• Take features from idea to production: collaborate with product/design, ship, measure, and improve.
• Help shape architecture, write clear proposals, balance speed with durable solutions.
• Keep services running smoothly with monitoring, incident response, and user support.
• Review code and mentor other engineers to grow the team.
• Collaborate across product, design, and business to translate needs into technical solutions.

Skills

Backend design

Production systems

Data modelling

Tools

Kotlin

Java

Ruby

API design

Relational databases

Data modeling

Job description

First Circle is hiring senior developers to scale backend systems in a fast-growing, remote-friendly setup with offices in London, Hong Kong, Singapore and Belgrade. You’ll own production-grade services, drive features from concept to production, and collaborate closely with product and design to ship high-impact solutions.

We value a hands-on approach, with a strong emphasis on reliability, data integrity, and scalable architectures in a multi-market fintech environment.