Senior Backend Engineer - Remote, High-Impact Fintech

First Circle; Jakarta Pusat; Remote; IDR 250,000,000 - 450,000,000; Full time

Benefits offered by this job

Macbooks

Private health insurance

Training budgets

Travel opportunities

Job summary

First Circle is hiring senior developers to drive meaningful impact during our most ambitious year of growth. You’ll build and evolve backend services and APIs, shape architecture, and work across product, design, and business to translate real needs into robust technical solutions.

You’ll have 5+ years in production backend systems (Kotlin/Java/Ruby), strong API design and data modeling foundations, and experience in fintech or payments.

Qualifications

• 5+ years building and operating production backend systems in Kotlin, Java, or Ruby.
• Strong API design, relational databases, and data modeling.
• Experience in startup fintech/payments/banking is a plus.
• Hands-on production experience: debugging, incidents, resilience.
• Comfortable in a fast-moving environment with evolving priorities.
• Curiosity about AI and practical AI usage.

Responsibilities

• Build and evolve backend services and APIs that are fast, reliable, and easy to change.
• Take features from first idea to production: shape the approach with product and design, ship it, measure what happens, and improve it.
• Help make architectural decisions, write clear technical proposals, and balance speed with solutions that will hold up over time.
• Keep your services running smoothly by setting up clear ways to spot issues early, respond quickly, and support users when something goes wrong.
• Review code, share what you know, and help other engineers grow.
• Work across product, design, and business to turn real needs into practical technical solutions—and explain the trade-offs clearly.
• Travel opportunities to SE Asia.

Skills

Backend systems

Kotlin/Java/Ruby

API design

Relational databases

Data modeling

Production ops

Incident debugging

Fintech experience

AI curiosity

Job description

First Circle is hiring senior developers to drive meaningful impact during our most ambitious year of growth. You’ll build and evolve backend services and APIs, shape architecture, and work across product, design, and business to translate real needs into robust technical solutions.

You’ll have 5+ years in production backend systems (Kotlin/Java/Ruby), strong API design and data modeling foundations, and experience in fintech or payments.