Looking for a job

ksatria bintang samudra

@ksatriabintangsamudra

Product Engineer — Mining & Vertical SaaS. AI-augmented solo dev; shipped CoalTrack (Flutter, Laravel, Indonesian statutory payroll).

Indonesia

Message

What I'm looking for

I'm after a remote product-engineering or full-stack role where I own features end-to-end — building vertical SaaS for operators in mining, telecom, and beyond. I work AI-augmented (spec-driven prompting, LLM integration) and thrive on small, fast teams that ship often. Based in Indonesia, comfortable across US time zones, and happy to contract through my US LLC.

I'm an AI-augmented solo product engineer with 18 months inside mining-sector IT, now building software for mining and telecom operators. I own the domain and architecture, drive AI tooling through implementation, and verify what ships — a specify-build-verify loop that's taken me across five stacks since 2024, each learned on a live deadline.

At CoalTrack, I'm the sole developer of an attendance and payroll product for coal mining, spanning a Flutter app, Laravel and PostgreSQL API, and admin interface. I implemented Indonesian statutory payroll with cited regulations, mirrored server-and-handset calculations, and an append-only audit trail; the app has shipped to TestFlight and Google Play closed testing.

At Rimba Raya, I built and operate five internal systems for a live ISP — an operations portal with access controls and mapping, plus RADIUS/MikroTik provisioning, QRIS billing, and WhatsApp notifications. Through Luxavero LLC (my US single-member LLC) I ship and run my own products, Lavelle and Venmail, owning everything from the front end to DNS and mail. My background also spans mining-sector IT, penetration testing, and social media analytics.

Experience

Work history, roles, and key accomplishments

Current

Founder

Current

Luxavero LLC

Aug 2026 - Present (2 months)

Founded a US single-member LLC as the home for products and client work. Ship and run Lavelle and Venmail, owning every layer from front end to DNS and mail.

Product Development DNS Email Fullstack Development

Current

Founder & Sole Developer

Current

CoalTrack

Jul 2026 - Present (3 months)

Sole developer of CoalTrack, an attendance and payroll app for coal mining, including a Flutter client, Laravel/PostgreSQL API, and statutory payroll engine. Shipped to TestFlight and Google Play closed testing.

Flutter Dart Laravel PostgreSQL Vue3 Filament Cloudflare Workers Codemagic CI Payroll PPH21 BPJS Kepmenaker 102 2004 GPS Mock Locations Audit Trails TestFlight Google Play

Current

Systems Developer

Current

Rimba Raya

Mar 2026 - Present (7 months)

Built and operate five internal systems for a live ISP, including an operations portal, barcode inventory, payslip generator, and employee-data intake. Integrated RADIUS/MikroTik provisioning, QRIS billing, and WhatsApp notifications.

Vue3 Supabase PostgreSQL Row level security Leaflet RADIUS Mikrotik QRIS WhatsApp Business Incident Management

IT Systems & Google Workspace Administrator

Kalimantan Tambang Mandiri

Sep 2024 - Mar 2026 (1 year 6 months)

Administered enterprise Google Workspace across multiple domains, including identity, access, mail routing, and storage. Built scripted backup/disaster-recovery routines and automation for user provisioning and audit reporting.

Google Workspace Identity Management Access Control Mail Routing Storage Backup Disaster Recovery Automation Audit Reporting

Freelance Penetration Tester

Upwork

Jul 2023 - Jan 2024 (6 months)

Conducted black-box and gray-box web-app assessments for international clients, covering injection, broken auth, access-control, and business logic flaws, with OWASP-aligned remediation reports.

Penetration Testing OWASP Top 10 Injection Authentication Access Control Business Logic Burp suite Reporting