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Are you seeking a high-agency, senior software architect to bridge traditional enterprise backends, high-throughput IoT telemetries, and cutting-edge AI-driven agent workflows? With over 20 years of software engineering experience and dual credentials as a Google Cloud Professional Cloud Architect and Professional Data Engineer, I design, build, and orchestrate robust, production-ready systems that are resilient, automated, and highly secure. From developing custom Model Context Protocol (MCP) servers to deploying isolated, ephemeral Docker sandboxes on Azure, I help mid-market to enterprise companies automate manual workflows, slash cloud costs, and build custom AI-powered applications that drive massive business value. 🌟 CORE COMPETENCIES & SERVICES 1. Autonomous AI Agents & Custom MCP Integrations • Bespoke MCP Servers: Built Node.js MCP servers enabling LLMs to run natural-language queries and secure updates directly over clinical databases. • AI Agent Sandboxing: Launched Azure platforms orchestrating isolated, ephemeral Docker sandboxes running Claude Code and Cline to process tasks via MS Teams. • Long-Term Memory: Bridged sandboxes to Segnog memory (FalkorDB graph and local Gemma embeddings) via SSE proxies, reducing latency to under 0.3 seconds. 2. Multi-Cloud Architecture, DevOps & IaC • Multi-Cloud: Deep expertise in AWS, GCP, and Azure, optimizing resources and enforcing compliance. • IaC: 100% automated provisioning and drift management using Terraform and AWS CDK for reproducible environments. • Container & CI/CD: Deployments using Kubernetes (GKE), Istio, and pipelines (GitHub Actions, CircleCI, GitLab, Bitbucket). 3. High-Throughput Backends & IoT Telemetry • IoT Backend Scale: Engineered medical IoT backends processing 1,000+ sensor records per second into AWS Timestream with real-time analytics. • Microservices Design: Building robust, highly concurrent microservices in Golang and Python (Django, FastAPI), communicating via Kafka, RabbitMQ, or NATS. • Databases & Search: Advanced query optimization and spatial architecture using PostgreSQL (with PostGIS), Cloud SQL, ElasticSearch, and Firestore. 💼 FEATURED CLIENT SUCCESS STORIES 🚀 Serverless Medical SaaS & Teams-Integrated AI Agents • Architected serverless diagnostics billing, clinical faxing, and agreement SaaS. Built TypeScript MCP servers for secure clinical queries and NanoClaw/OpenClaw AI agent sandboxes on Azure running Claude Code to process complex coding tasks. 🚀 Django Backend & Spatial Infrastructure • Engineered a Django backend deployed on GCP Cloud Run. Implemented robust credential mounting using Google Cloud Secret Manager. Developed a custom Gmail OAuth2 authentication system for verified enterprise delivery, and built a high-availability infrastructure utilizing PostGIS, Cloud Tasks, and Cloud Scheduler. 🚀 GKE Microservices for Enterprise Loyalty • Developed scalable microservices for a high-volume loyalty system using Golang and Python, deployed on GKE (Google Kubernetes Engine) with CI/CD fully automated via Bitbucket Pipelines. 🛠️ MY TECHNICAL TOOLBOX • Languages: Golang, Python, TypeScript, JavaScript, Java, C++, C#, Swift, SQL • Clouds: AWS (EC2, Lambda, Timestream), GCP (Cloud Run, GKE, GCE), Azure, Cloudflare • DevOps: Terraform, AWS CDK, Docker, Kubernetes (GKE), GitHub Actions, CircleCI, GitLab, Bitbucket Pipelines, Jenkins • Databases & Queues: PostgreSQL (PostGIS), AWS Timestream, FalkorDB, ElasticSearch, SQLite, Cloud SQL, Firestore, Kafka, NATS, Pub/Sub • AI & LLMs: Model Context Protocol (MCP), Claude Code, OpenAI and Gemini APIs, local LLMs (Llama 2, Mistral), PyTorch • Frameworks: Django, Spring Boot, React, Next.js, Stripe, ExpressJS, NestJS, GraphQL, Web Speech API 🏆 EDUCATION & ACTIVE CERTIFICATIONS • Google Cloud Professional Cloud Architect (Active) • Google Cloud Professional Data Engineer (Active) • Proctored Upwork Skill Certification in Python Development (Top Tier) • M.S. in Electronic Engineering (Game Technology) – Institut Teknologi Bandung (ITB) • B.E. in Informatics Engineering (Distributed Systems) – Institut Teknologi Bandung (ITB) • HackerRank Certified SQL Advanced • Oracle Certified Associate (Java SE 5/SE 6) 🤝 WHY COLLABORATE WITH ME? • High-Agency: I take full ownership of your architecture, security, and cloud cost optimization. • AI Native: Proven experience building real-world MCP servers and secure, containerized AI agent sandboxes. • Security First: Leveraging Secret Managers, secure VPNs, and strict IAM to safeguard user and enterprise data. • Clean Code: Domain-driven design with robust test coverage (90%+ target). Let's discuss how we can scale your infrastructure, reduce your cloud spend, or build your next custom AI workflow. Click "Invite" or "Send Message" to schedule a brief discovery call.

Senior Backend Engineer | Node.js • NestJS • TypeScript I am a Senior Backend Engineer with over 6 years of experience building, scaling, and operating production systems across Fintech, E-commerce, and EdTech. I specialize in transforming complex business requirements into high-performance microservice architectures. 🚀 My Expertise Includes: - Architectural Leadership: Led the migration of a monolith to a 19-service microservices ecosystem. - Performance Engineering: Optimized queries and backend logic to reduce API latency by 90% (from 1s to 50-100ms). - Financial Systems: Engineered coin exchange services and VIP staking features for blockchain-based products. - Integration & Scaling: Proven track record of integrating complex 3rd party gateways (Xendit, SendGrid, Twilio) and banking partners. - Infrastructure & DevOps: Orchestrating deployments on Kubernetes (GKE), AWS, and Docker with zero-downtime strategies. 🛠 Technical Stack: - Languages: TypeScript, Node.js, Go, PHP. - Frameworks: NestJS (Expert), Express.js, Laravel, Echo. - Databases: PostgreSQL, MySQL, MongoDB, Redis. - Messaging: Kafka, RabbitMQ, gRPC, Event-Driven Architectures. 📊 Notable Achievements: - Reduced payment processing time by 75% for a major payment gateway. - Spearheaded the backend migration from AWS Amplify to a scalable NestJS architecture for a US-based AI platform. - Built a hotel management aggregator (Govesta) from the ground up, including full ERD design and system architecture. I thrive in remote, high-ownership environments and am committed to delivering clean, maintainable code that aligns with long-term business goals. Let’s build scalable solutions that help your business thrive!

17+ years in Software Engineering, delivered the product with stellar client reviews. Client reviews 🌟 "Finding one who completely owns your core platform, understands the architecture, and constantly looks for ways to improve the business? That’s rare. Budi has been with us since 2016, and the reality is, he is the backbone of our booking engine. Over the years, we’ve thrown massive technical challenges at him, and the trend is always up. What he does works, and he is constantly learning..." 🌟 "It was a pleasure working with Budi. He is a highly skilled PHP developer who consistently delivered high-quality work, communicated well, and could be relied on. He made significant contributions to our software and were proactive in solving complex technical challenges. We highly recommend them to anyone looking for an experienced PHP developer and would gladly work with him again..." 📗 My qualifications: 🗒️ Reliable, Clear Communication & Committed for the long-term I do the work myself, commit to your project, solve problems, and deliver end-to-end results. Some clients I've worked with have stayed with me for 10 years. I communicate early and have mastered async communication with 12 years of experience. Clear expectations, I tell you early if I've found a blocker or need research. 🗒️ AI-First development I use AI to boost productivity combined with 17 years hands-on software engineering experience to build a proper software architecture that is scalable & maintainable. I automate repetitive tasks, allowing me to focus on more complex and creative aspects of the project. 🗒️ CTO / Product Mindset I understand your business and goals first before code. I know how to expand from a small brief into a workable solution. I suggest the most optimal solution to meet your business needs. Proactively engage with the project, improve it and don't wait for assigned tasks. 🗒️ Technologies built Car hire aggregator booking engine, GIS/GPS/Coordinates Systems, Microservices, Infrastructure as code, Data Synchronization, DevOps, SDK/Third Party API integration. Insurance & fintech Product, Strict Secure Data Policy, OAIC/GDPR compliance. 🗒️ Payment gateway Stripe with split destination, PayPal and Braintree payment gateways. Understand how to secure it, prevent duplicate payments and handle failure with retry or auto refunds. 🗒️ API Integrations Supplier car hire OTA with SOAP/XML and JSON CustomerIO, PostHog, Google Tag Manager, Twilio. 🗒️ Technology stacks Languages PHP, Typescript, Python, Go. Frameworks Laravel, Symfony, FastAPI, Next.js, Nestjs, Node.js, React, Angular, Vercel Eve. AI/Agentic Frameworks LangChain, LangGraph, LangFuse, FastMCP, RAG, N8N AI Automation. Machine Learning Numpy, Pandas, Scikit-Learn, Pytorch, Vector Search, fine-tuning & model eval. Cloud & Infrastructure AWS Cloud, Google Cloud, Hostinger, Digital Ocean, Event Driven System (AWS SQS, RabbitMQ, GCP Pub/Sub), Docker, Kubernetes, CI/CD, Distributed Systems, Terraform, GitHub actions. Data & Querying MySQL, PostgreSQL, Prisma ORM, Drizzle ORM, MongoDB, Redis, Pinecone, GraphQL, REST API, XML, SOAP, WebSocket, GIS Spatial, Model Context Protocol. Security & Auth OIDC, OTP, OAuth, JWT, HTTP Auth, API Key, OWASP, Least-Privilege Access.

I’m a Senior Software Engineer with 15+ years of experience building production web and mobile applications. My primary focus is frontend development, where I build scalable applications using clean architecture, reactive patterns, and strong performance optimization practices. I have extensive experience working with modern frameworks, especially Angular, and I apply consistent engineering standards to ensure maintainability and long-term scalability. In addition to web applications, I also develop cross-platform mobile apps using Ionic and Flutter. I integrate native mobile features such as biometric authentication and build device integrations including Garmin wearable devices. I am currently deepening my expertise in Flutter, actively building applications and expanding my mobile development capabilities while applying the same engineering principles used in production systems. My background also includes backend development using Go and PHP, working with microservices, REST APIs, and message queues. This allows me to understand the full system architecture and integrate frontend applications smoothly with backend services. For the past 3 years I have actively leveraged AI tools in my daily development workflow, which significantly improves development speed, debugging efficiency, and code quality. I use AI to accelerate coding, refactoring, troubleshooting, and building internal tooling while maintaining clean and maintainable production code.

Hi, I'm Arya - a Senior Software Engineer with 5+ years building scalable backend systems for fintech, e-commerce, and enterprise platforms. I specialize in high-performance APIs, microservices architecture, and complex third-party integrations. What I deliver: ✅ High-scale backend systems: Architected systems handling 400-600 RPS with 99.9% uptime ✅ Complex integrations: UK HMRC Making Tax Digital, payment gateways, e-commerce platforms ✅ Performance optimization: 50-60% database latency reduction through query optimization ✅ Revenue-driving features: Built product integrations generating 100+ billion IDR monthly revenue Recent client work: UK Tax Integration - Implemented HMRC Making Tax Digital (MTD) ITSA integration for an accounting system, enabling automated tax reporting for self-employment and UK property businesses Dubai Media Platform - Developed backend for a directory-style app featuring local activities, magazine content, and gamification systems Database Optimization - Achieved 50-60% latency reduction on MariaDB/AWS RDS for a Symfony application through Doctrine query optimization Indonesian E-commerce - Led pay-later system integrations with Tokopedia, Shopee, TikTok Shop, Lazada, and Traveloka Core expertise: Backend: Java (Spring Boot), NodeJS, PHP (Laravel/Lumen/Symfony), REST APIs, microservices Databases: MySQL, PostgreSQL, MariaDB - query optimization & schema design Cloud & DevOps: AWS, GCP, Kubernetes, Docker, CI/CD pipelines Integration: Government APIs (HMRC), payment systems, e-commerce platforms Why clients choose me: Proven at scale: 5+ years at Indonesia's leading fintech (part of Djarum Group) International experience: UK, UAE, and Southeast Asian clients Complete delivery: Clean code, tests, documentation, deployment guidance Reliable communication: GMT+7 based, professional English, regular updates Industries: Fintech, E-commerce, Government/Tax, Media & Entertainment, SaaS Ready to build reliable, scalable backend solutions for your business. Let's discuss your project requirements.

I'm a Software Architect and DevOps engineer with 13+ years of experience building and running production systems at national scale. For the past 5+ years, I've been the architect and infrastructure lead for SMILE Indonesia's national vaccine cold chain monitoring system, deployed in partnership with UNDP and the Indonesian Ministry of Health (Kemenkes RI). What SMILE does, in numbers: • Monitors vaccine cold chain from factory to community health centers across 17,000+ Indonesian islands • Serves 10,300+ daily active users (Puskesmas community health workers) across all 514 kabupaten/kota • Replicated to Malawi as eHIN Malawi proving the deployment model works across continents What I own end-to-end: • Software architecture (microservices, multi-service backend) • Cloud infrastructure (migrated on-prem → GCP → AWS as the platform scaled; currently running on AWS) • DevOps and observability (Kubernetes, Docker, CI/CD with GitLab, monitoring with Prometheus + Grafana, IaC with Ansible/Terraform) • Ongoing maintenance and reliability since 2020. 5+ years of continuous production operation AWS Certified Cloud Practitioner. Stack I work with daily: AWS (EC2, EKS, RDS, S3, CloudFront), Docker, Kubernetes, GitLab CI, Jenkins, Ansible, Terraform, Prometheus, Grafana, SonarQube, k6. Available 20+ hours/week for DevOps, platform engineering, and cloud migration projects.