Ksatria Bintang Samudra

Product Engineer · Mining & Vertical SaaS, AI-augmented

I build software for mining and telecom operators and ship it end to end — domain modelling, architecture, release engineering and operations. I specify the system, drive AI tooling through implementation, and verify what ships rather than trusting what it produces.

📍 Pontianak, Indonesia
🇺🇸 Founder, Luxavero LLC
● Open to remote product & AI engineering roles

15+live products & sites

5systems run at a live ISP

400+automated tests on CoalTrack

7UI languages in one app

Product engineer across mining workforce software, ISP operations, payment automation and LLM integration. I work as an AI-augmented solo builder: I own the domain and the architecture, write the spec, orchestrate Claude Code and Cursor through implementation, and audit what actually ships — which is how I found that every earlier release build of my own app was missing the Android INTERNET permission. Background in penetration testing and enterprise Google Workspace administration.

Core skills

MobileFlutterDartRiverpodAndroid / iOS releaseTestFlightPlay ConsoleCodemagic CI

Backend & DataLaravel 12PHPPostgreSQLSupabaseNode.jsFastAPISQLiteRow-level security

FrontendVue 3ReactNext.jsAstroTypeScriptTailwind CSS

AI & AutomationLLM API integrationWorkers AIOpenRouterPrompt engineeringMulti-agent workflowsTelegram botsWhatsApp Business

Infra & PaymentsCloudflare WorkersD1 / KV / R2DNS & DKIM mailDockerQRISBank transfer filesRADIUS / MikroTik

SecurityOWASP Top 10Penetration testingBurp SuiteRate limiting2FAAudit trails

Experience

Founder & Sole Developer · CoalTrack (attendance & payroll for coal mining)

Jul 2026 – Present · Remote

Built the product end to end across 236 commits: a Flutter Android/iOS client, a Laravel 12 + PostgreSQL 16 API, Filament and Vue 3 admin surfaces, and a Cloudflare Worker mail relay.
Implemented Indonesian statutory payroll to cited regulation — PPh21 TER (PMK 168/2023), BPJS and Kepmenaker 102/2004 overtime — written twice on purpose (PHP service and Dart mirror) so server and handset produce identical figures, cross-checked by mirrored tests.
Enforced an append-only audit trail in the database: PostgreSQL triggers reject UPDATE and DELETE on attendance events and approvals.
Designed the attendance decision engine around server-authoritative time and mock-location detection, so infrastructure failures flag for human review instead of rejecting a worker.
Ran the release line solo: Codemagic CI gating 400+ automated tests before signed builds, Apple TestFlight and Google Play closed testing, a 7-language UI — and found, by auditing the signed bundle, that every earlier build lacked the Android INTERNET permission.

FlutterLaravel 12PostgreSQL 16CodemagicCloudflare

Systems Developer · Rimba Raya (internet service provider)

Mar 2026 – Present · Remote

Built and operate five internal systems for a live ISP: an operations portal, a barcode inventory system, a payslip generator, an employee data-intake form and a public showcase.
Operations portal in Vue 3 + Supabase/PostgreSQL with Leaflet mapping; applied 46 dated SQL migrations to production covering row-level security, a universal audit table and role-and-region access.
Integrated RADIUS/MikroTik provisioning, QRIS payment collection and WhatsApp Business notifications for live subscriber billing.
Root-caused a Supabase slowdown to missing indexes and per-row policy evaluation and fixed it with six indexes and a policy rewrite; added an external watchdog after tracing a VPS outage to the provider.

Vue 3SupabaseNext.js 14RADIUSQRIS

Founder · Luxavero LLC (Wyoming, USA)

Aug 2026 – Present · Remote

Formed a US single-member LLC as the home for my products and client work.
Shipped and operate Lavelle (lavelle.my.id), a digital wedding-invitation platform with a staff portal, Supabase row-level security and one-click publishing to per-couple subdomains, and Venmail (venmail.my.id), a privacy-first temporary inbox with real-time delivery and a developer API.

Next.jsVueSupabaseCloudflare

IT Systems & Google Workspace Administrator · Kalimantan Tambang Mandiri (mining)

Sep 2024 – Mar 2026 · Remote

Administered the multi-domain Google Workspace: identity, access control, mail routing and storage.
Designed scripted backup and disaster-recovery routines and built internal automation for provisioning, group management and audit reporting.

Google WorkspaceApps ScriptAutomation

Freelance Penetration Tester · Upwork (international clients)

Jul 2023 – Jan 2024 · Remote

Black- and gray-box assessments of web applications — injection, broken authentication, access-control bypass and business-logic flaws — with OWASP-aligned remediation reports.

OWASPBurp SuiteReporting

Earlier

Social Media Data Analyst — Upwork. Cross-platform analytics (Instagram, TikTok, Twitter) for international clients. May 2020 – Mar 2022

Selected projects

Vensix — OpenAI-compatible AI gateway: one key routes to Claude, GPT, Gemini, DeepSeek and Kimi with live cost-based metering, QRIS top-ups and automated hosting provisioning. vensix.biz.id

ksatriabintangsamudra.com — Astro on Cloudflare Workers with a Workers AI chat assistant and an “Explain it” endpoint that returns sanitised Mermaid diagrams. 2026

Kiloan — subscription Android point-of-sale for laundry businesses (Flutter). 2026

Makmur Motor — showroom and inventory CMS for a Denpasar dealership on Cloudflare Workers, D1 and KV. makmurmotor.biz.id

DevSec Toolbox — 62 developer & security tools: on-device utilities plus live DevSecOps scanners (dependency CVEs, website, TLS, DNS, AI) on Cloudflare Workers, and a 270+ tool DevSecOps Arsenal. Live

Education

STIE Anindya Guna Semarang — Bachelor of Management (S.M.), in progress · expected Nov–Dec 2027

SMAN 1 Rengat Barat, Riau — High School Diploma, Science Track · 2017 – 2020

Certifications & courses

🎓Google AI Essentials — Google via Coursera, Jul 2024 · verify

ISC2 Certified in Cybersecurity — course pre-assessment (2024)
Ethical Hacking · Expert Linux · Python Programming — MindLuster course completions (2024)

Languages

Indonesian — native

English — professional working proficiency