Javas Anggaraksa Rabbani
Full-Stack Software Engineer · Systems Architect · Startup CTO & IT Lead
Specializing in zero-to-production internal business systems, multi-role operational platforms, and real-time SaaS ecosystems.
About
I specialize in building internal business systems and operational platforms for startups - the kind of software that runs the day-to-day operations of a company from the inside out. While most engineers focus on isolated features, I architect complete systems. Having served as the sole founding engineer across two startups (Konfy ShoeCare and Risentta) and founded PT. DS Tekno Indonesia, I take full ownership from initial system design to production deployment, collaborating directly with founders to translate operational business requirements into scalable, maintainable architectures.
I bring together the mindset of a product strategist, the discipline of a backend architect (Go, TypeScript, Node.js, PostgreSQL, MongoDB, Docker, Spring Boot), and the precision of a frontend and mobile engineer (Next.js, React, React Native, Tailwind CSS, Socket.IO). Complemented by my academic background in Law at Universitas Sultan Ageng Tirtayasa, I approach software engineering with strong structural governance, operational clarity, and long-term reliability.
GitHub Contributions & Engineering Activity
Activity Overview
Work Experience
End-to-end technical ownership across startup operations, SaaS product architecture, and enterprise consulting.
Promoted from external contract architect to permanent IT Department Lead after delivering the company's end-to-end digital operational infrastructure from scratch.
- Direct the company's technical roadmap, feature prioritization, and system scalability in direct partnership with the founder.
- Manage production cloud infrastructure across Vercel, MongoDB Atlas, and Cloudinary, ensuring high availability as order volume scales.
- Oversee continuous evolution of the 17-status order lifecycle engine, 6-role operational portals, 30+ metric real-time admin dashboard, and automated Midtrans payment reconciliation.
- Establish architectural documentation and design system standards to support future engineering team expansion.
Founded PT. DS Tekno Indonesia, an IT consulting and enterprise software development firm focused on cross-sector digital transformation across Indonesia.
- Lead technical discovery, system architecture, and full-stack delivery of enterprise web applications tailored to client operational efficiency and revenue growth.
- Spearhead digital empowerment initiatives that broaden access to modern software infrastructure for SMEs, institutions, and emerging entrepreneurs.
Designed, built, and maintained Risentta's complete technology ecosystem (www.risentta.com) as a unified Next.js 16 App Router monorepo (13 MongoDB models, 50+ components, 9+ API domains).
- Engineered Risentta Write, an AI-powered collaborative document editor featuring real-time multi-user cursor presence (Y.js + WebSocket), rich-text editing (Tiptap with 20+ formatting tools, citations, version history, and shared Virtual Speaker YouTube queue), and integrated Google Gemini + Claude (via OpenRouter) for inline writing assistance and single-prompt document generation.
- Built Airisenta (standalone AI chat assistant with usage quotas), a Customer SaaS Portal (HTTP-only JWT auth, Free/Daily/Weekly/Biweekly subscription tiers, referral tracking), and an Internal Multi-Division Admin Dashboard with role-based access control.
Production Systems & Selected Work
Live commercial platforms, hybrid mobile applications, and open-source systems engineered from concept to production.
End-to-end operational platform running live at konfyshoecare.id. Features a 17+ status order lifecycle, 6-role RBAC portals, real-time notifications and live chat (Socket.IO + Web Push), Midtrans Snap payment integration (QRIS, Virtual Account, Card), live Leaflet GPS courier tracking, 3-point QC with automated rewash, and an installable mobile PWA.
Full-stack Next.js 16 monorepo powering Risentta's public research publication platform (risentta.com), internal multi-division admin suite, customer subscription & referral portal, Risentta Write (real-time multi-user editor with Y.js + WebSocket live cursors, Tiptap, Google Gemini & Claude AI), and Airisenta AI Chat.
Hybrid web and mobile mathematics e-learning application for Junior High School students (Grades 7-9). Includes 215 structured practice questions, interactive quizzes, per-subtopic discussion spaces, progress analytics, and gamification (points, badges, levels, leaderboard) built with Next.js and Capacitor.
Privacy-first Retrieval-Augmented Generation (RAG) engine running 100% locally to answer questions over private PDF documents and images. Watches an input directory, extracts text, builds a local vector knowledge base, and provides an interactive terminal Q&A interface via Ollama.
Ventures & Organizations
Corporate technology initiatives, research communities, and academic organizations I have founded or actively lead.
Founder & Principal Solutions Architect · Enabling Growth Through Technology
Established in 2026 and headquartered in Tangerang Regency, PT. DS Tekno Indonesia develops enterprise web applications and cross-sector digital solutions designed to generate measurable impact on sales growth, operational efficiency, and market expansion while broadening technology access for Indonesian SMEs and young entrepreneurs.
Founder & Program Coordinator · Scientific Inquiry & Public Knowledge Dissemination
Coordinated independent research and science communication programs (Risentta Philosovia & Risenthink) aimed at fostering intellectual curiosity and scientific literacy among Indonesian youth through accessible digital publications.
Member · Associated with Universitas Sultan Ageng Tirtayasa
Active member of the Legal Drafting Community at Universitas Sultan Ageng Tirtayasa, developing expertise in legislative drafting, statutory structuring, and legal governance.
Technical Stack & Competencies
Production-tested technologies across backend architecture, real-time web and mobile applications, AI integration, and cloud infrastructure.
Backend & Distributed Systems
Frontend, Mobile & Real-Time
AI, Data Science & Cloud Infrastructure
Engineering Leadership & Business Governance
Licenses, Certifications & Exhibitions
Verified engineering credentials across containerization, backend microservices, front-end architecture, Go, generative AI, and business leadership.
University of Helsinki - Full Stack Open: Containers (1 ECTS)
University of Helsinki, Finland
Validated completion of the 'Containers' module (1 ECTS academic workload), covering Docker containerization and multi-container full-stack development workflows.
JPMorganChase - Software Engineering Job Simulation
JPMorganChase (Forage)
Integrated Apache Kafka into a Spring Boot microservice, implemented transaction validation and persistence with Spring Data JPA & H2 SQL, connected to an external REST Incentive API via RestTemplate, and verified system reliability using Maven test suites.
Skyscanner - Front-End Software Engineering
Skyscanner (Forage)
Completed Skyscanner's front-end engineering simulation utilizing React.js and JavaScript within a production component architecture.
GoLang Certification (Score: 94/100)
Gamelab Indonesia
Completed the Go (Programming Language) certification with a score of 94/100.
Implementing Data Science with Microsoft Fabric
Dicoding Academy
Certificate of completion covering enterprise data science workflows with Microsoft Fabric.
IT for Business Success
HP LIFE
Validated skills in evaluating business technology solutions and leading IT-enabled business transformation.
Effective Leadership
HP LIFE
Validates competencies in strategic leadership, effective team guidance, and professional ethics.
Hour of Code - AI Literacy
CodeAI
Certification in Artificial Intelligence literacy and computer science foundations (HOC - AI CS).
Financial Literacy and Job Readiness
DBS Bank
Strengthens domain specialization in IT for business and corporate finance systems.
NVIDIA - Gen AI Practice
NVIDIA
Comprehensive foundation in Artificial Intelligence and Machine Learning, from core AI principles to practical Generative AI implementations.
Accounting Certificate by Ice Center
Institut Teknologi Bandung (ITB)
Strengthens expertise in financial accounting and business IT systems.
Art & Market Day - Arduino Uno IoT Exhibition
MAN 1 Kota Tangerang
Programmed and exhibited an interactive Arduino Uno hardware installation that detected arriving visitors and displayed positive affirmation messages.
Get in Touch
Need an engineer who can own the full technical lifecycle of a business system and deliver it to production? Reach out directly via LinkedIn, GitHub, or email.