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Verified Senior Software Engineer Open for New Engagements

Production-Grade Software Engineering from Concept to Scale.

Bespoke web applications, cross-platform mobile apps, and robust Laravel fullstack backends engineered for speed, reliability, and long-term maintainability.

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99.9%
Availability Standard
< 100ms
P95 API Latency Target
100%
Type-Safe Deliverables
Architectural 2D sketch of multi-platform software systems, web applications, and cloud architecture
Architectural Systems Blueprint
Web / Mobile / Cloud
Engineering Solutions

Specialized Software Development Services

Each solution is authored from ground up with clean architecture, strict modularity, comprehensive automated tests, and zero unnecessary dependencies.

2D technical sketch of modern web engineering and component architectures

Web Application Engineering

High-performance web apps with modern JavaScript and TypeScript frameworks. Fast load times, responsive fluid layouts, and seamless state management.

  • React, Next.js, and modern Vue architectures
  • Sub-second page rendering and Core Web Vitals optimization
  • Type-safe API integration with automated schema validation
JavaScript TypeScript React Next.js Tailwind CSS
2D technical sketch of iOS and Android mobile app engineering with Flutter and React Native

Mobile Application Development

Cross-platform mobile applications for iOS and Android using Flutter and React Native. Smooth 60/120 FPS performance, offline capabilities, and native hardware access.

  • Flutter and React Native multi-platform codebases
  • Offline-first database sync (SQLite, Hive, WatermelonDB)
  • Ready for App Store and Google Play publishing pipeline
Flutter Dart React Native iOS Android
2D technical sketch of Laravel fullstack backends, databases, and server APIs

Fullstack Laravel & Backend Systems

Resilient enterprise web platforms and API backends built on Laravel. Engineered for high concurrency, relational integrity, and rock-solid business logic.

  • Laravel 11+ streamlined architecture with PHP 8.3+
  • PostgreSQL and MySQL schema tuning with Redis caching
  • Secure RBAC auth, background queue workers, and webhook flows
Laravel PHP 8+ PostgreSQL Redis REST APIs
2D architectural blueprint sketch of custom software systems, microservices, and distributed gateways

Custom Software & System Architecture

Tailored software suites, internal enterprise portals, multi-tenant SaaS foundations, and complex distributed system design built for stability.

  • Domain-Driven Design (DDD) and clean architecture layering
  • Payment gateway automation (Midtrans, Xendit, Stripe)
  • Zero-downtime deployment pipelines with Docker orchestration
System Design Docker Payment APIs CI/CD PostgreSQL
Technology Foundation

Tested, Battle-Hardened Tech Stacks

Modern software engineering requires choosing the right tool for the job. No speculative frameworks or unmaintained packages.

Web Ecosystem

Frontend & Responsive Web

Building fluid, accessible, and reactive web applications tailored for speed and high conversion rates.

JavaScript (ESNext) TypeScript React 19 Next.js Tailwind CSS REST & GraphQL

Mobile Ecosystem

iOS & Android Cross-Platform

Native-grade mobile applications with single codebase efficiency, compiled machine performance, and hardware integrations.

Flutter Dart React Native Expo SQLite Push Notifications

Backend & Cloud

Robust APIs & Datastores

Scalable backend architectures built with Laravel and Node.js. Resilient database schemas with ACID compliance.

Laravel 11 PHP 8.3+ Node.js PostgreSQL MySQL Redis Docker
Delivery Standard

The Engineering Execution Cycle

Every project follows a disciplined engineering pipeline with transparent milestones, versioned code commits, and zero guesswork.

01

Architecture & Spec

Deep technical discovery, API contract design, relational schema modeling, and sprint roadmap planning.

02

Precision Sprints

Modular implementation following single responsibility principles, clean code standards, and type safety.

03

Rigorous Testing

End-to-end integration tests, regression checks, security audits, and latency profiling under realistic conditions.

04

Deployment & Handover

Automated CI/CD release, zero-downtime migration, comprehensive documentation, and complete repository transfer.

Instant Calculation

Interactive Project Cost Estimator

Transparent engineering estimates based on platform scope and architectural features. Adjust options to preview realistic budget and delivery timeline.

Starter MVP Core user journeys, responsive UI, essential backend
Production Business Full features, auth RBAC, payment/API integrations
Enterprise Scaled High-concurrency tuning, microservices, advanced caching
Estimated Investment
Rp 13.600.000
Delivery Estimate: 3 - 4 weeks
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Common Questions

Frequently Asked Questions

Everything you need to know about technical workflow, code ownership, and communication standards.

I specialize primarily in modern JavaScript / TypeScript ecosystems (React, Next.js, Node.js), mobile development with Flutter and React Native for iOS and Android, and fullstack PHP backends using Laravel 11 with PostgreSQL, MySQL, and Redis.
You own 100% of all intellectual property, source code, deployment scripts, and architectural assets upon final delivery. All commits are authored directly in your Git repository with granular commit histories.
Communication is maintained primarily through WhatsApp or scheduled technical video reviews, paired with asynchronous sprint updates via GitHub issues and pull requests.
Yes, every deployment includes a 30-day post-launch warranty covering bug fixes and technical stability adjustments. Extended monthly SLA maintenance retainers are also available.
Direct Consultation

Ready to Build High-Performance Software?

Discuss your application requirements, database schema design, and launch milestones directly with Gilang Teja Krishna.

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