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OPEN TO CONTRACT · Q4 2026

Interfaces that feel instant. Systems that stay up.

I'm Muhamad Alfito Santosa — a full-stack engineer in Jakarta building React front ends and Go services that actually ship: payments, automation, and the infrastructure underneath.

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YEARS SHIPPING
3+
PROJECTS DELIVERED
20+
PAYMENT STACKS LIVE
2
VPS UPTIME
99.9%
TEAMS SUPPORTED
5

SELECTED WORK · 2023 — 2026

Selected work

All case studies

PRODUCT · PAYMENTS · AUTOMATION

2025

Ordering, payments and WhatsApp — one flow.

A restaurant platform with Midtrans checkout, a live kitchen board and an Evolution API bot that confirms orders without a human. Next.js in front, Go Fiber and Postgres behind.

PAYMENTS
Midtrans · Xendit
STACK
Next.js · Go · Postgres
ROLE
Design + build
Read the case study

WEBSITE · 2024

A corporate site that sells the work

Next.js marketing site with a CMS the client actually uses, plus the SEO and Lighthouse work that got Core Web Vitals green.

INFRASTRUCTURE · 2025

From commit to production, unattended

Jenkins pipelines, Playwright and Pytest suites, and Docker releases that ship with no maintenance window.

ONE PLATFORM · FIVE PRODUCTS

Run the whole business on one suite.

School, people, retail, operations and payments — five products built on one stack, shipped on one domain.

Book a demoExplore products

LIVE AT SERA.SANTOSATECHID.CLOUD · HR · POS · ERP · PG

  • 01LIVE

    Sera School

    Admissions, classes, invoices and parent portal.

    Explore
  • 02LIVE

    HRIS System

    Records, attendance, leave and payroll — one profile per person.

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  • 03LIVE

    POS System

    Checkout, stock and daily receipts for every counter in the store.

    Explore
  • 04LIVE

    ERP System

    Purchasing, inventory and finance, reconciled across branches.

    Explore
  • 05LIVE

    Payment Gateway

    One checkout across Midtrans and Xendit.

    Explore

EXPERIENCE · 2023 — 2026

Where I've worked

Full CV

  1. 2023 — NOW

    CURRENT

    Full Stack Engineer

    PT Santosa Tech Indonesia

    Own the product surface end to end — Next.js interfaces, Go Fiber services, Midtrans and Xendit payments, and Docker deploys behind Nginx.

  2. 2025 — 2026

    Software QA Engineer

    Brinks Indonesia

    Built Jenkins pipelines and Playwright/Pytest suites, then containerised staging and production releases to cut rollout risk.

  3. 2024

    IT Infrastructure Staff

    Brinks Indonesia

    Level 1–2 support across Windows and Linux, Active Directory, network hardware and endpoint security for the Jakarta office.

  4. 2023

    Full-stack Fellow

    Skilvul · MSIB

    Two Kampus Merdeka cohorts: Next.js and Prisma products first, then 30+ wireframes turned into responsive interfaces.

STACK

Tools I reach for

Currently: Go · Next.js · Postgres

FRONTEND

Interfaces that stay fast under real data.

  • React
  • Next.js
  • TypeScript
  • Tailwind
  • shadcn/ui
  • React Query
  • Vue

BACKEND

Services, payments and the boring parts.

  • Golang · Fiber
  • Node.js
  • PostgreSQL
  • MySQL
  • Redis
  • Kafka · RabbitMQ
  • Prisma · Drizzle

INFRA & QA

Ship it, watch it, prove it still works.

  • Docker
  • Nginx · Caddy
  • Jenkins
  • Playwright
  • Pytest
  • Linux VPS
  • OpenTelemetry

Certifications and awards

CERTIFICATIONS & AWARDS · 2023

Skilvul · #Tech4Impact

Top 8 · Demo Day

#Tech4Impact, Skilvul

Intro to Coding

Gold certificate

People's Choice

Skilvul cohort vote

Product Innovation

Telemedicine challenge

CONTACT · OPEN TO CONTRACT

Let's build something that holds.

If you need a site, an ordering flow, or the pipeline that keeps either one alive — I'm one email away. Replies within a day, Jakarta time.

DIRECT LINES

AVAILABLE

EMAIL
alfitosantosa@gmail.com
LINKEDIN
linkedin.com/in/lorddsans
PHONE
+62 819 2745 3030
BASED IN
Jakarta Timur, ID · GMT+7