Remote Back-End Engineer – Core Payments Lead

Sigillum Fides Technology Pte Ltd; Indonesia; Remote; IDR 300,000,000 - 375,000,000; Full time

Benefits offered by this job

Fully remote

AI-first culture

Growth opportunities

End-to-end ownership

Flexible APAC remote work

Job summary

Sigillum Fides Technology Pte Ltd is hiring a Back-End Engineer for Core Payments, operating remotely across the Asia-Pacific region. You will design and own payment infrastructure, build scalable Go services, and ensure robust data models and ledger accounting logic.

You will lead architecture decisions, mentor colleagues, and collaborate with product teams to deliver end-to-end payment features across PSPs, acquirers, and wallets. A strong emphasis on async collaboration and scalable systems.

Qualifications

• 3–7+ years of back-end development experience.
• Deep hands-on expertise in Golang — production-grade, idiomatic Go.
• Strong command of PostgreSQL — schema design, complex queries, indexing, transactions.
• Proven experience with REST API design and microservices architecture.
• Track record of delivering in a fully remote, async environment.

Responsibilities

• Design and maintain scalable back-end services in Golang.
• Build and optimize data models and queries in PostgreSQL.
• Architect and maintain ledger accounting logic (double-entry, reconciliation, balance tracking).
• Lead development of dynamic routing logic for multi-gateway payment flows.
• Collaborate with front-end and product teams to deliver end-to-end payment features.
• Integrate and maintain payment APIs (PSPs, acquirers, wallets).
• Drive code quality through reviews, standards, and best practices.

Skills

Golang

PostgreSQL

REST API design

Microservices

Remote work (async)

Education

Bachelor's degree in Computer Science or related field

Job description

Sigillum Fides Technology Pte Ltd is hiring a Back-End Engineer for Core Payments, operating remotely across the Asia-Pacific region. You will design and own payment infrastructure, build scalable Go services, and ensure robust data models and ledger accounting logic.

You will lead architecture decisions, mentor colleagues, and collaborate with product teams to deliver end-to-end payment features across PSPs, acquirers, and wallets. A strong emphasis on async collaboration and scalable systems.