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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.

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.

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.

I'm a Google Cloud Professional Architect and Cybersecurity Engineer with 18+ years of hands-on experience. And I build GCP environments where security isn't bolted on at the end. It's engineered from the ground up. In today's evolving threat landscape, a reactive security posture is a liability. I specialize in proactively identifying vulnerabilities and architecting multi-layered defense systems on GCP to protect mission-critical data and ensure operational resilience. My approach integrates security into the entire cloud lifecycle, from initial design and CI/CD pipelines to continuous monitoring and incident response. My key differentiator is an offensive security mindset enhanced by AI. I leverage Large Language Models (LLMs) to simulate sophisticated attack vectors and automate threat modeling, allowing me to uncover blind spots that traditional security tools often miss. This "think like an attacker" methodology ensures a more robust and future-proof security posture for your organization. My areas of expertise include: - Cloud Billing & Cost Optimization: Implementing FinOps Strategy, Cost Optimization & Resource Management. - Cloud Security Architecture: Designing secure-by-default GCP landing zones and infrastructure. - Threat Detection & Posture Management: Implementing and managing GCP Security Command Center and other CSPM tools. - AI-Enhanced Offensive Security: Using LLMs for advanced penetration testing and vulnerability discovery. - Infrastructure as Code (IaC) Security: Securing Terraform scripts and CI/CD pipelines against misconfigurations. - Container & Kubernetes (GKE) Security: Hardening containerized environments and implementing service mesh security. - Compliance & Governance: Architecting solutions to meet frameworks like ISO 27001 and SOC 2. Let's connect to discuss how I can secure your Google Cloud environment.

Hi there, I'm Hendra, Full-Stack Web developer with proven experience in developing robust web applications and payment systems. Expertise spans across backend development, API creation, and team collaboration, ensuring high security, performance, and compliance standards. Proficient in SQL, HTML & CSS, and JavaScript, with a solid foundation in various technologies, including Ruby on Rails, Vue.js, Next.js and many more. Passionate about leveraging a full-stack skill set to deliver innovative solutions and elevate project outcomes while continuously embracing new technologies and methodologies. Ready to contribute to a forward-thinking team dedicated to impactful web development. Highly interested with Web development (both backend and front-end), building REST API. GraphQL API, Marketplace, Payment system, CRM / SaaS system and more. Also a startup enthusiast, to help and grow up together with the lovely startup companies. I'm highly adaptable to working on many industries / startup businesses across the countries. My favorite stacks: ✅ Ruby on Rails ✅ NodeJS / Express.js ✅ Vue.js ✅ Next.js ✅ Bootstrap / Tailwind for CSS ✅ Hotwire & Stimulus for Front-end more dynamic ✅ ElasticSearch for fulltext search engine ✅ SQL (Postgresql & MySQL) ✅ MongoDB ✅ Retool (for building frontend system with less code) Key Qualifications: ⭐ Focus on Quality, Reliability and Security performance ⭐ Fast learning, I can adapted quickly and learning the existing system ⭐ Focus on web development, and mobile friendly ⭐ Hard worker, organized, attention to details and a adaptable with team, and love to learn new tech ⭐ Love to learn new things ⭐ Good communication with team

With over 5 years of experience, I specialize in building scalable applications across various domains, including core banking systems, ETL tools, e-commerce platforms, and freelancing marketplaces. I’m an expert in AI Native engineering where I use AI coding assistants to fully support my development end to end, still with me as the pilot of the whole app. Delivering production grade applications in a short amount of time is my specialty. I offer solutions that meet your specific project needs, leveraging a wide range of skills in both development and DevOps. Development Expertise: ✅ Backend: Golang, Laravel, Python (API Integrations with third parties such as twillio, apple’s IAP, payment gateways, etc) ✅ Frontend: Next.js, React.js, Vue.js Database: 🌟 SQL: PostgreSQL, MySQL, SQL Server, SQLite, Supabase 🌟 NoSQL: Firebase Firestore, Couchbase, Elastic 🌟 Others: Pocketbase DevOps & Tools: ✨ Kafka, Confluent Kafka (3 Confluent Certifications) ✨ Kubernetes ✨ Docker ✨ NGINX (3 Certifications) ✨ Jenkins ✨ ELK Stack ✨ Splunk (Certified Core Power User) ✨ N8N Cloud: ✨ AWS ✨ GCP ✨ Alibaba Additional Skills: ⭐️ Team Management: Jira, Trello ⭐️ Design Focus: Precision in UI/UX, with a strong eye for design and attention to detail, ensuring a seamless user experience. ⭐️ Business Solutions: Expertise in proposing multiple solutions for business needs, including optimized database structures. ⭐️ SOLID Principles: Clean, reusable code & optimizing for best performance For more details, you can view my portfolio at gabriella-tech.my.id.