I'm Oksa Satya, a full-stack developer (backend-focused). 4+ years building enterprise applications for a Dubai software house — and building Dexova, an ERP platform (HRIS, payroll, POS, inventory) for Indonesian businesses.
Go
Java
TypeScript
PHP
Spring Boot
Laravel
Node.js
Express
React
Next.js
Tailwind CSS
PostgreSQL
MySQL
MongoDB
Redis
Docker
Nginx
Linux
GitCurrently building Dexova and shipping enterprise application features from Dubai.
Flagship case study
HR, payroll, cashier, and stock usually live in separate tools — out of sync and error-prone. Dexova unifies them: four business modules on one Go backend, used through three production apps.
payroll-engine
Tiered overtime per Indonesia's PP 35/2021, income tax, social security, pro-rata, and paydays that shift on bank holidays — computed from locked attendance periods.
geofence-attendance
PWA check-in with nearest-office detection, a mandatory anti-buddy-punching selfie, WFH via a two-address model, and approval-gated corrections.
pos-reconciliation
Open/close shifts with opening cash, split payments, Midtrans QRIS, void & returns with automatic stock restoration, and daily cash reconciliation.
Architecture (at a glance)
Beyond Dexova — systems I built end-to-end for clients: the business problem, the technical decisions, and the results.
A B2B productivity SaaS: Notes, Kanban, and Calendar Sync. Hexagonal Go, multi-tenant + RBAC, Google OAuth, and subscriptions with a trial.
Role: Backend Engineer & Architect
Read the case study
A multi-tenant website platform with CMS, blog, SEO module, and lead capture. Fully hexagonal Go (ports & adapters), i18n, and async workers.
Role: Backend Engineer & Architect
Read the case study
Also shipped:ChasaStoreJastip Chasa StoreYok ShoppingSeluscrafDubai Deals+30 more projects
Eight areas — each with technology I actually run in production, not a logo wall.
Production APIs and services: layered architecture, complex domain logic (payroll, cash reconciliation), async jobs, disciplined error handling.
Go · Java / Spring Boot · Laravel · Node.js · PostgreSQL · Redis
Admin dashboards, self-service portals, and PWAs — React/Next.js, optimized for Core Web Vitals.
Next.js · React · TypeScript · Tailwind CSS
Splitting systems into clearly-bounded modules: Dexova's four business modules run on one Go codebase without breaking each other.
Modular monolith · Clean architecture · SSE · WebSocket
Per-tenant data isolation, RBAC, subscriptions + trials — practiced in Dexova and Helixio, not theory.
Multi-tenant PostgreSQL · RBAC · Billing / trial flow
Business rules that run themselves: tiered-overtime payroll (PP 35/2021), SLA-based approval escalation, async bulk Excel imports.
Job queue · Scheduler / cron · Excel pipeline
Payments, calendars, and AI integrated safely: Midtrans QRIS for POS, Google Calendar sync, OpenAI/Google AI over operational data.
Midtrans · Google APIs · OpenAI · Webhook / HMAC
Containerized deployments with safe database migrations, clean env configuration, and baseline observability.
Docker · Linux · CI/CD · Nginx
Fast, discoverable applications: SSR/SSG, structured data, Lighthouse budgets, and queries that are never N+1.
Next.js SSR/SSG · Lighthouse · Schema.org · Query tuning
Not a job timeline — the problems faced and what came out of them.
Full Stack Developer
Jul 2022 – present
Building and maintaining enterprise applications for a software house's clients: Java/Spring Boot backends with Next.js frontends and diverse system integrations.
4+ years shipping production features for enterprise applications — API design, cross-system integration, and UIs used by business users daily.
Architect & Full-Stack Developer
2024 – present
Indonesian businesses run HR, payroll, cashier, and stock in disconnected tools — data never reconciles and mistakes are expensive.
An ERP platform with four modules (HRIS, Payroll, POS, Inventory) on one Go backend — three production apps: admin dashboard, employee attendance PWA, and cashier app.
Backend Developer (Internship)
2021 – 2022
Backend needs for a Laravel-based smart-city product.
First professional engineering foundation: Laravel REST APIs, team collaboration, version-control discipline.
Freelance projects, remote full-stack roles, or technical consultation — I usually reply within 24 hours.
