I’m a Senior Backend Engineer specializing in scalable systems, cloud architecture, and AI-integrated workflows. I focus on building reliable backend systems that power SaaS products, data-driven platforms, and automation-heavy applications. With 7+ years of experience, I’ve worked on high-performance backend systems using Golang, Node.js, and Python — designing microservices, event-driven architectures, and cloud-native applications that handle real-world scale and complexity. What I Bring to the Table Backend & System Design ✅ Scalable APIs and microservices using Golang, Node.js, and Python ✅ Clean architecture for SaaS platforms and production systems ✅ Authentication, role-based access, and backend workflows ✅ System design focused on reliability, performance, and maintainability Cloud & Infrastructure ✅ AWS-based architecture (S3, compute, deployment pipelines) ✅ CI/CD setup and production-ready deployments ✅ Docker and containerized environments ✅ Infrastructure designed for scalability and fault tolerance Data & Performance ✅ PostgreSQL design, query optimization, and performance tuning ✅ Event-driven systems (Kafka) and real-time communication (WebSockets) ✅ Backend optimization and system reliability improvements Integrations & Automation ✅ Stripe and subscription billing systems ✅ Third-party integrations (Zoho, QuickBooks, APIs, webhooks) ✅ Email, SMS, and WhatsApp integrations ✅ Backend-driven automation workflows AI & Intelligent Workflows ✅ AI/LLM integrations (OpenAI, structured outputs, automation pipelines) ✅ Data processing and AI-assisted backend workflows ✅ Designing systems with validation, fallback logic, and control layers Why Work With Me? ✅ Systems Thinking Focus on building backend systems that are structured, reliable, and scalable — not just quick feature implementations. ✅ Production-Ready Approach Experience working on real systems where performance, uptime, and maintainability matter. ✅ Clean & Practical Execution Balanced approach between engineering quality and delivery speed. ✅ Clear Communication Structured collaboration, predictable delivery, and smooth handover. Let’s Work Together! If you’re building a SaaS product, scaling backend systems, or integrating AI into real workflows, I can help design and implement systems that are efficient, reliable, and built to last. Happy to discuss your project.

6+ years of experience as golang backend dev. Have Masters degree in Applied Math. I specialize in Go microservices, leveraging tools like Docker, Kubernetes, and cloud services (AWS/GCP) to ensure your backend is scalable and reliable. I help startups and businesses design robust backend systems from scratch, or improve existing platforms to handle growth. My goal is to ensure your application’s backend is secure, fast, and scales effortlessly as your user base grows. ⚡ Key Skills & Technologies ✅ Golang & Microservices: Building RESTful and gRPC APIs using Go, with expert use of concurrency patterns for high-performance, scalable services. ✅ Cloud Platforms (AWS, GCP, Azure): Deploying and scaling applications on Amazon Web Services, Google Cloud, and Azure. (E.g., using AWS Lambda, Google Cloud Pub/Sub, or Azure services as needed.) ✅ Databases & Messaging: Experience with SQL and NoSQL databases like PostgreSQL, MySQL/MariaDB, MongoDB, plus caching and messaging systems such as Redis, Apache Kafka, and RabbitMQ for robust data pipelines. ✅ API Security: Implementing OAuth2, JWT authentication, and secure token management (including Firebase Auth and AWS Cognito) to protect APIs. ✅ Real-Time Communication: Developing real-time features using WebSockets (Gorilla toolkit) and event-driven architectures for live updates (e.g. in chat or notification systems). ✅ Testing & Monitoring: Writing thorough unit/integration tests and using monitoring/logging stacks (e.g. ELK Stack with Elasticsearch, Logstash, Kibana) to ensure code quality and reliability. 🔷 RECENT PROJECTS ------------------ 🟦 MEDICAL ERP Physician Partners business is based on early disease detection, prevention, and treatment. SXOPE is the IT backbone of the clinic's operations. Here are some key facts about the system 45 clinics+, 400+ PCPs, 60 000+ patients. I was a part of backend dev team consisting of 20+developers, besides new features development also did L3 support/bug fix tasks. The system is written in Go and is based on GCP stack. 🟦 ATMOS CLI Enhanced circuit breakers mechanism and repos cloning for more resilient performance under heavy load, integrated GitHub, Gitlab and Bitbucket tokens injection to bypass rate limits, introduced support for SSH vendoring, fixed the bug with globs (both shallow and greedy) inclusing and exclusion patterns as well as SCP SSH urls alignment for go-getter. Also implemented a sub command 'docs generate' for readme files that have terraform variables listed (json, hcl, helmfile). Tech Stack: Go, GitHub APIs, Jenkins for CI/CD, Docker-based deployments 🟦 HOTEL SCRAPING ENGINE Migrated Python scrapers to Golang microservices, increasing data throughput by 50% and improving maintainability. Tech Stack: Go, concurrency, Redis, AWS CDK for IaC 🟦 GYM & FITNESS APP implemented Stripe, Cliq, and Payarc for seamless payments, resulting in a smoother billing process for the client’s users. Built membership, billing, and account endpoints using Golang, GORM, and PostgreSQL. leveraged Docker and CI/CD (Jenkins) to ensure fast and reliable deployments. 🟦 BOXES APP Developed a notifications microservice in Go with Redis Pub/Sub; added WebSocket endpoints for real-time updates. Implemented Jenkins pipelines for automated builds and tests 🟦 AI Agent Created OAuth2 flows (Facebook, Instagram, TikTok) and cron-based publishing with Golang APIs. Managed AWS Fargate tasks to scale containerized workloads 🟦 TelePQC – Post-Quantum Secure Telecom Prototype Designed and implemented a post-quantum secure communication prototype combining lattice-based key encapsulation (Kyber/NTRU) and code-based digital signatures (McEliece), grounded in Discrete Analysis and Theory of Random Coding. Applied Stochastic Methods of Informatics and Operations Research techniques to model and optimize encryption/decryption latency across simulated telecommunication networks, and partnered with academic cryptographers to benchmark against NIST PQC candidates. Keywords: post-quantum cryptography, lattice-based KEM, code-based signatures, discrete mathematics, stochastic optimization, telecom network security. 🚀

I’m a skilled developer specializing in frontend, backend, and AI/ML solutions. From responsive websites to powerful web applications, I can help bring your ideas to life. Skills: Frontend: HTML, CSS, JavaScript, React Backend: Python, Java, C#, Node.js AI/ML: Machine Learning, Data Analysis I offer full project management and prioritize clear communication throughout the process. Let’s work together to achieve your goals!

Professional Full Stack Developer with over 7 years of experience in building scalable and efficient web applications. I specialize in front-end technologies like React.js and Next.js, as well as back-end frameworks such as Golang, Laravel, and Node.js. Specializes : ☕️ Front-End Development: Creating responsive and intuitive user interfaces with React and Next.js. ☕️ Back-End Development: Building robust APIs using Golang, Node.js, and Laravel. ☕️ Database Management: Expertise in SQL and NoSQL databases, including MySQL, MongoDB, and PostgreSQL. ☕️ Cloud & DevOps: Deployment and management using AWS (EC2, AppSync) and containerization technologies like Docker. ☕️ Third-Party Integrations: Payment gateway integration (Xendit, QRIS, Midtrans), Direct Debit BI Fast, and more. Deliveriables : ⭐️ Detail-Oriented: I ensure clean, well-documented code that follows best practices. ⭐️ Problem Solver: Proficient in identifying and fixing bugs, as well as optimizing performance. ⭐️ Flexible: Open to short-term projects or long-term collaborations to bring your ideas to life. Let’s work together to create something amazing! Feel free to reach out to discuss your project requirements.

I’m looking for projects I can care about as much as you do. I love helping teams take complicated systems and make them cleaner, faster, and easier to scale. My background includes breaking apart monoliths, designing microservice and event-driven architectures, building full-stack SaaS platforms, and deploying production workloads with Docker, Kubernetes, CI/CD, Terraform, and Pulumi. I also work with AI-powered systems, including RAG, AI agents, predictive analytics, and automation. I can jump in as an architect, senior full-stack engineer, cloud/Kubernetes consultant, or seasonal development partner.

I develop scalable backend systems and full stack applications that handle real-world production workloads. I have experience in building high-performance APIs using Go (Golang) and Node.js, with clean architecture and strong focus on reliability and speed. On the frontend, I work with React and Angular to create responsive, user-friendly interfaces that integrate seamlessly with backend services. I design systems with scalability in mind, including microservices, REST/GraphQL APIs, and cloud-ready deployments. I also work with databases like PostgreSQL and MongoDB, ensuring optimized queries and data integrity. My approach is simple: write clean code, build fast, and deliver stable systems that are easy to maintain. Whether it’s an MVP or a complex distributed system, I can take your idea from concept to production.

A software engineer with ~8 years of experience in solving complex problems who holds rank 1 on HackerRank in Python. Loves automating boring stuff and always on a lookout for a challenging problem!

✅ Full Stack engineer with a strong focus on implementing pixel perfect designs and building scalable servers. Also expert in web scraping. ✅ Additional skills: 🔸Programming Languages: TypeScript, JavaScript, Python, GO. 🔸Frontend: Next.js, React.js, Tailwind, MUI, Bootstrap, shadcn/ui, . 🔸Backend: GO, Node.js, Express.js, Flask, Firebase. 🔸Database Management: PostgreSQL, Prisma, MongoDB. 🔸Chrome-extention : ReactJS 🔸Other: Open AI API, Google Cloud Run, Github Actions, Drizzle, Rest APIs, Git / GitHub, Data Structures and Algorithms, Competitive Coding. ✅ I'm committed to delivering high-quality, scalable solutions that address specific business needs. Whether you're looking to enhance existing systems or build new applications from the ground up, I can help turn your requirements into functional, efficient code. ✅ Let's discuss how I can contribute to your project's success.💪

SUMMARY 9+ years experience. I build scalable AI systems and high-concurrency backends. Expert in GCP architecture, LangChain orchestration, and Go-based microservices. CORE COMPETENCIES • AI: Multi-agent workflows (LangChain), RAG, Vertex AI. • Cloud: GCP (Certified Architect), Docker, Terraform. • Backend: Go (Golang), Node.js (NestJS), Redis, BullMQ. • Data: PostgreSQL, pgvector, GORM. SELECTED WORK Agentic Content Pipeline • Automated video scenario generation and posting using multi-agent workflows. • Tech: Vertex AI, LangChain, Node.js, Redis. Maritime Routing System • Real-time vessel routing logic and crew management hub. • Tech: Go, PostgreSQL, GCP, Microservices. EdTech Matching (RAG) • Search-and-match system for tutors using RAG and vector search. • Tech: Vertex AI, PostgreSQL (pgvector). TECHNICAL STACK • AI: Vertex AI, LangChain, RAG, Agentic Workflows. • Backend/Infra: Go, Node.js, GCP, Docker, Terraform. • Database: PostgreSQL, MongoDB, Pinecone. OTHERS • 4 years as a Technical Founder (Arafat Solutions). • Based in Indonesia | US/EU Timezone flexible.

🚀 Top Rated Full Stack Developer | 100% Job Success Score I help startups, SaaS companies, and growing businesses build, optimize, and scale modern web applications from idea to production. With experience across frontend development, backend architecture, API development, database design, automation testing, and performance optimization, I can contribute throughout the entire software development lifecycle. My experience includes building and maintaining SaaS platforms, fintech applications, e-signature systems, business management tools, AI-powered applications, and complex enterprise workflows. 💻 Frontend Development • React.js • Next.js • Angular • JavaScript (ES6+) • TypeScript • HTML5 • CSS3 • Tailwind CSS • Bootstrap • Material UI (MUI) ⚙️ Backend Development • Node.js • Express.js • Golang • REST APIs • Authentication & Authorization (JWT, OAuth) • Microservices • Third-Party API Integrations 🗄️ Databases • MongoDB • PostgreSQL • MySQL • Database Design • Query Optimization 🧪 QA & Test Automation • Cypress • Playwright • End-to-End Testing (E2E) • API Testing • Regression Testing • Test Case Design • Defect Tracking • Quality Assurance ☁️ DevOps & Tools • Docker • Git • GitHub • GitLab • CI/CD Pipelines • Postman Recent work includes: ✔ Building and maintaining a digital e-signature platform with complex document workflows. ✔ Developing fintech solutions involving account management, onboarding flows, and financial operations. ✔ Creating automated test suites that significantly reduce manual testing effort. ✔ Integrating AI and real-time communication features into web and software applications. ✔ Optimizing slow applications to improve performance, scalability, and user experience. Clients work with me because I deliver clean, maintainable code, communicate clearly, and focus on solving business problems—not just completing tasks. Whether you need a Full Stack Developer, React Developer, Next.js Developer, Node.js Developer, Golang Developer, QA Automation Engineer, Cypress Tester, Playwright Tester, or someone to maintain and improve an existing application, I can help. Let's discuss your project and identify the fastest path to a successful delivery. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Full Stack Developer, Senior Software Engineer, Node.js, Next.js, React.js, Web Development, Mobile Development, Backend Development, Frontend Development, Full Stack Architecture, MERN Stack Developer, MERN, Next.js Developer, MVP, Redis, TypeScript, React TypeScript, Claude Code, Claude, AI Automation, AI, AI SaaS, AI Developer, AI Engineer, AI SaaS Developer, Generative AI Developer, GPT Developer, OpenAI Developer, Claude Developer, AI Automation Expert, GraphQL Developer, API Development, REST API, SaaS, AWS, Docker, Kubernetes, CI/CD, n8n, Replit, Lovable