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Updated at 04 Aug 2026 Need a reliable Golang developer to build system that scales with your product? I help startups and SaaS teams build high-performance APIs. Looking for a high-performance backend that scales seamlessly with your user growth? I help startups, SaaS platforms, and engineering teams design and build high-reliability APIs, microservices, and automated data pipelines. Whether you are building an MVP from scratch or scaling an existing system, I focus on delivering clean architecture, high test coverage, and production-ready code. What I Help Clients Build → Scalable backend APIs and microservices → Web scraping and data automation pipelines → SaaS backend systems and MVP architectures → Third-party API integrations (Stripe, PayPal, marketplaces) → Authentication systems (JWT, OAuth2, Firebase Auth) → Real-time systems and message queues → Production-ready backend infrastructure using Docker and cloud platforms Backend & Automation Expertise Backend Development → Golang (Gin, gRPC) → Node.js (Express, NestJS) → Python (FastAPI, Flask) APIs & Architecture → REST & gRPC APIs → Microservices architecture → Authentication systems → Third-party API integrations Web Scraping & Automation → Puppeteer → Selenium → BeautifulSoup → Data extraction pipelines → Marketplace monitoring automation Databases → PostgreSQL → MongoDB → MySQL → Database optimization and indexing Infrastructure → Docker → Kubernetes → AWS → DigitalOcean Results & Client Work → Built Golang microservices architecture improving performance and system reliability → Developed automated web scraping pipelines for product monitoring and data extraction → Designed REST and gRPC APIs for scalable SaaS applications Client feedback highlights: ⭐ “Deep expertise in Golang and Node.js while optimizing our microservices architecture.” ⭐ “Quickly understood requirements and efficiently resolved complex Puppeteer scraping issues.” ⭐ “Outstanding developer who went above and beyond.” 📩 Let’s Work Together! 🔎 Domains & Keywords Golang , SaaS Development, MVP Development, Startup SaaS Engineer, Full Stack Developer, Next.js Developer, React Developer, Node.js Developer, Go Backend Developer, API Development, REST API Integration, AI Integration, Automation Systems, Scalable Backend Architecture, Supabase, PostgreSQL, Database Optimization, Authentication (JWT, OAuth2), Stripe Integration, Real-Time Applications, Docker, Microservices, Cloud Deployment, AWS, DigitalOcean, Production-Ready Systems, SaaS MVP Architecture, API Optimization, eBay API Integration, SMTP / Email Automation, Marketplace Automation

I'm Backend Developer specializing in Java Spring Boot,Golang and Node.js additional Automation and AI Integration with Microservices architecture. I design and build scalable, secure backend services and APIs for fintech, banking,, research, and enterprise platforms using Java,Golang , Node.js, SQL, and AWS. I bring 4+ Years of hands-on experience delivering production-grade backend systems, high-performance microservices, event-driven architectures, and high-availability REST APIs. My work spans market intelligence platforms, core banking and payment integrations, multi-telco USSD applications , AI-powered backend pipelines and n8n specialist. 🔑 Core Focus: Backend Development • Java Developer • Spring Boot Microservices • Golang Backend • Node.js Backend • REST API Development • AWS Backend • Fintech Systems 💼 Backend & Microservices Expertise • Java Developer (Spring Boot, REST APIs, Microservices) • Distributed systems and event-driven architecture • Backend system design for fintech, banking, and enterprise platforms • Secure authentication and authorization (OAuth2, JWT, Keycloak) • Complex API integrations (banking, telecom, payment systems) • Frontend: React, Nextjs and Svelte, Tailwind CSS, Vite... ⚙️ Cloud, DevOps & Reliability • AWS (ECS/Fargate, SQS, S3, EC2, ECR) • Docker and Kubernetes • CI/CD pipelines (GitHub Actions, Jenkins, Bitbucket Pipelines) • Monitoring and reliability engineering (Prometheus, Grafana, SLO/SLI) 🤖 AI & Data Processing (Backend-Focused) • AI-powered compliance and data-processing pipelines • Vector search using PostgreSQL (pgvector) • Prompt-based rule engines and OpenAI-compatible API integrations 🗄 Databases & Messaging • SQL: MySQL, PostgreSQL, SQL Server • NoSQL: MongoDB • Messaging: Kafka, ActiveMq, AWS SQS • Automation: n8n -Also Have Frontend Experience in React ,Nextjs and Svelte 5 I actively work as a Backend Developer on Java Spring Boot microservices ,Golang and Node.js APIs, and partner with clients who value clean architecture, scalable systems, clear communication, and fast, reliable delivery.

I’m a Top-Rated (5⭐️) Full Stack Engineer with over 4+ years of experience delivering high-quality backend systems, APIs, and full-stack web applications. I specialize in Java/Kotlin with Spring Boot on the backend and Vue/Nuxt on the frontend, supported by modern DevOps and cloud-native practices. I help teams build reliable, scalable, and maintainable software systems, whether it's creating new applications from scratch or improving and refactoring existing codebases for better performance and maintainability. 🔧 My Expertise Covers 🔹 Building RESTful APIs and microservices using Spring Boot (Java/Kotlin) 🔹 Real-time web applications using WebSocket (e.g., chat, live updates) 🔹 Implementing secure authentication & SSO with OAuth 2.0 and OpenID Connect 🔹 Full-stack development with Vue.js, Nuxt.js, Tailwind CSS, and Bootstrap 🔹 Working with relational (PostgreSQL, MySQL), in-memory (Redis), and graph (Neo4j) databases 🔹 Automating CI/CD workflows using GitHub Actions and Docker 🔹 Provisioning and deploying to GCP services (Cloud Run, Cloud SQL, GCS, Cloud Tasks, Cloud Scheduler, Load Balancer) 🔹 Deploying and managing applications on Linux VPS (Ubuntu) 🚀 What I Bring 🔹 Clean, modular, and well-documented codebases 🔹 End-to-end ownership from architecture to deployment 🔹 Real-time, scalable solutions tailored to your product needs 🔹 Proactive communication and on-time delivery 🔹 Strategic insight to improve features, reliability, and scalability Whether you need a full-stack developer to take your product from idea to launch, or a backend specialist to build real-time APIs and services, I’m ready to contribute to your success. Let’s build something exceptional.

Backend & API Integrations Engineer — Java/Spring Boot, Node.js/NestJS, and the third-party integrations most teams don't want to touch (QuickBooks, Xero, payments, accounting). I build and stabilize reliable backends: clean REST APIs, microservices, and integrations that actually stay in sync. 8+ years of backend experience and 2,700+ hours delivering systems that handle high traffic and financial/inventory workflows. Where I help most: - API & platform integrations — QuickBooks Online & Xero (OAuth2, tokens, webhooks, sync, reconciliation), cXML purchase-order flows, and payment/accounting platforms - Microservices — designed and maintained 32+ services with CI/CD + Docker, improving uptime and cutting deployment time - Backend rebuilds — refactored legacy systems into scalable services with measurably higher throughput - Security — JWT, Spring Security, and Auth0 authentication/authorization - Reliability — async processing with Kafka/SQS, idempotency, retries, and rate limiting, backed by tests (JUnit, Mockito, Testcontainers) Tech I work with: Java, Spring Boot, Node.js, NestJS, Python, PostgreSQL, MySQL, MongoDB, MariaDB, Redis, DynamoDB, Docker, Apache Kafka, AWS SQS, REST, gRPC. How I work: I start with a short review of your current code/architecture, then give you a clear plan, timeline, and checkpoints — so you always know what's happening and what comes next. If you're dealing with a fragile backend, a stalled integration, or you need a new API built right the first time, send me a message describing what you're trying to achieve and I'll reply with a concrete next step. — Samson

I’m a backend developer who loves building fast, secure, and scalable web applications that just work, even under heavy load. My toolbox includes Spring Boot, Node.js, PostgreSQL, and Redis, and I focus on crafting clean, maintainable systems that make complex things feel effortless. From designing microservices and APIs to fine-tuning database performance and implementing JWT/OAuth2 security, I enjoy the art of making servers hum efficiently behind the scenes. I’ve worked on enterprise-grade REST and GraphQL APIs, built Kafka-based messaging systems, and deployed apps that scale gracefully in the cloud. I’m all about solving tricky backend problems, simplifying workflows, and keeping systems reliable and snappy. If you need a backend that’s solid, smart, and ready to grow, I’m the person who’ll make it happen.