Summary
✨ AI‑Generated
Join an innovative financial technology organization as a mid-to-senior backend engineer building scalable systems that support secure, real-time transactions across markets. You will design backend services, optimize relational databases, develop ledger capabilities, and improve transaction routing while shaping technical architecture and mentoring colleagues. Strong Go development skills and experience with PostgreSQL are essential. The position offers remote work within the Asia-Pacific region and meaningful ownership of mission-critical infrastructure.
Highlights
Fully remote opportunity across the Asia-Pacific region with ownership of critical payment infrastructure, architectural decision-making, technically challenging financial systems, and opportunities to mentor engineers and influence engineering direction.
Description
🚀 We're Hiring: Back-End Engineer – Core Payments (Mid to Senior Level) | Remote
Sigillum Fides Technology Remote · Full-Time · APAC Region
Are you a seasoned Go developer passionate about fintech and ready to own infrastructure that moves real money across borders? Sigillum Fides Technology is looking for an experienced Back-End Engineer to join our growing Core Payments team.
We're an AI-driven software company revolutionizing financial operations across the Asia-Pacific region — bridging traditional finance with next-generation digital payment platforms.
🔧 What You'll Own
You'll be a key driver in designing and maintaining the backbone of our payment infrastructure — ledger systems, dynamic transaction routing, and real-time payment processing at scale.
You'll be expected to lead technically, make architectural decisions, and mentor where needed.
Design and develop scalable back-end services in GolangBuild and optimize data models and queries in PostgreSQLArchitect and maintain ledger accounting logic (double-entry, reconciliation, balance tracking)Lead development of dynamic routing logic for multi-gateway payment flowsCollaborate with front-end and product teams to deliver end-to-end payment featuresIntegrate and maintain payment APIs (PSPs, acquirers, wallets)Drive code quality through reviews, standards, and best practices✅ What We're Looking For
Must-Have:
3–7+ years of back-end development experienceDeep hands-on expertise in Golang — you write production-grade, idiomatic GoStrong command of PostgreSQL — schema design, complex queries, indexing, transactionsProven experience with REST API design and microservices architectureTrack record of delivering in a fully remote, async environmentNice to Have:
Hands-on experience with ledger systems or financial accounting logicDeep familiarity with payment gateways, acquiring banks, or PSP integrationsExperience designing transaction routing, failover logic, or multi-currency flowsExperience with message queues (Kafka, RabbitMQ) or event-driven architectureBackground in high-risk merchant processing or compliance-aware payment flowsAPAC fintech or banking domain knowledge🎓 Education Bachelor's degree in Computer Science, Software Engineering, or equivalent practical experience.
🌏 Why Sigillum Fides Technology?
Fully remote — work from anywhere in the regionGreenfield and impactful — own systems end-to-end, not just maintain themSmall, sharp team where your decisions shape the architectureAI-first culture — we build smart, not just fastFast growth trajectory with paths into tech lead and principal engineer rolesSalary Annual: IDR 300,000,000 – 375,000,000/year Nett After Tax (No relocation support, Full remote)📩 Ready to Apply?
Send your CV and a brief note about a payment or financial system you've built to c@sigillumtech.com or apply directly via LinkedIn.
We review every application.
No recruiters, please.
