Open to new opportunities · Jakarta
Backend & Full-Stack Engineer · Go · PostgreSQL · Vue.js · C#/.NET
I build the business systems companies run their money on, and make sure the numbers stay right when many people use them at once or a server fails. Today that's the ERP that finance, accounting, purchasing and sales teams at TB Global use every day.
About me GET /about · 200
I'm a software engineer with 2+ years of experience building business-critical web applications end to end: APIs, screens and the database underneath. At TB Global I build the shared features the whole ERP relies on (a change history for audits, safe editing when several people work on one record, and real-time alerts) as part of a 10-person engineering team. Before that, I built HR and payroll modules in C#/.NET and SQL Server at PT Pasifik Hoki Indonesia. Outside work I built LedgerPay and PayRun, a payment platform and a payroll SaaS you can try live.
I like the work that keeps a business running: every transaction recorded correctly, people notified on time, and a system that keeps working when something breaks. I ask "what happens if this fails halfway?" before I write the code, not after the incident.
Backend
Data & messaging
Frontend
DevOps & tools
Experience GET /experience · 200
Company-wide ERP for finance, accounting, purchasing, sales and stock, used daily by up to 50 employees in 6 departments. 10-person engineering team.
SELECT … FOR UPDATE) plus an updated_at version check in PostgreSQL, rolled out across 17 core transaction modules.HRIS & payroll SaaS (Ontime) used by 5 client companies with multiple branches.
Full-stack Web Development program. Graduated as Best Student (Aug 2024). Extra certificates in JavaScript and Node.js from Programmer Zaman Now.
Recommendations GET /reviews · 200
As his manager, I always find discussions with him engaging; he brings well-reasoned arguments yet remains objective in receiving feedback. He never gives up when faced with technical issues and consistently demonstrates excellent teamwork.
He doesn't just fix bugs; he identifies root causes and prevents issues before they arise. … He mentors without ego, listens with patience, and always makes time to help teammates in need.
He's a great partner to brainstorm tricky problems with, and just as easy to talk to about how things are really going. Sharp, collaborative, and someone I can be real with.
Projects GET /projects · 200
Two of them run live: open a demo, click once, and try to break them. No sign-up. Point at a project and the monitor in the room switches to it.
The company's internal system for finance, accounting, purchasing, sales and stock, used by up to 50 employees in 6 departments. I build its shared engines: audit trail, safe concurrent editing, notifications and accounting closing.
Private company system
A digital wallet and payment platform I built on my own. Money is never deducted twice and a balance never goes negative, even when the pay button is clicked twice, 100 payments hit one wallet at once, or the server crashes halfway. The demo lets you try all three.
Proof: load-tested on 1 million journals (laptop baseline): 200 transfers/s at p95 11 ms with zero balance drift. 2,001 simultaneous requests on a wallet that could afford 100 transfers: exactly 100 succeeded.
A payroll app for many companies at once, built on my own. No company can ever see another's salaries, payroll finishes correctly even if the server crashes mid-run, and a final payslip can't be changed quietly. The demo gives you three roles to try.
Proof: 33 hand-checked payroll cases; a 10,000-employee run finishes in about 10 seconds (laptop baseline) with no duplicates after a worker crash.
HRIS and payroll SaaS used by 5 client companies. I built the custom shift-scheduling module end to end and the live business-trip tracking on Google Maps.
programgaji.com ↗Online course platform I built on my own to learn microservices: five separate services, so one part can be fixed without taking the whole site down.
View on GitHub ↗Event platform I built on my own to practise full-stack work: sign-up, secure login, email notifications and paged event listings.
View on GitHub ↗Contact POST /contact · 202
Looking for an engineer who builds systems your finance team can trust? I'm open to backend or full-stack roles (Go, PostgreSQL, Vue.js), onsite or hybrid in Jakarta. Email or WhatsApp me, and I'll happily walk you through any project above.
suyantolearn09@gmail.com
Based in Jakarta (GMT+7) · Room built with Three.js · The lamp turns on at night.