I build the backend infrastructure behind trading platforms, prediction markets, and financial systems where milliseconds and reliability aren’t negotiable. Recently architected a quantitative trading platform for blockchain prediction markets real-time wallet tracking, behavioral analytics, and data pipelines processing millions of events. Also building real-time stock market systems with high-volume data processing and low-latency requirements. What I Deliver Real-Time Trading Infrastructure - High-frequency data pipelines, event-driven architectures, sub-100ms APIs, WebSocket streaming Quantitative Systems - Wallet & behavioral analytics, strategy backtesting infrastructure, on-chain data ingestion, signal detection FinTech & Payments - Stripe integrations, multi-currency, PCI-aware systems - Migrated £2.4M in live subscriptions with zero downtime Scale Without Breaking - 10K → 1M daily transactions (100× growth) - 40% AWS cost reduction (~$15K/month) - 99.99% uptime Technical Depth - Go – Concurrent systems (10K+ goroutines), memory-efficient services (<100MB), gRPC, high-performance APIs - Data Pipelines – Kafka, SQS, event-driven streaming - Databases – PostgreSQL, TimescaleDB, DynamoDB, Redis - Infrastructure – AWS/GCP, Kubernetes, full observability, zero-downtime deployments - Blockchain – On-chain data engineering, wallet tracking, prediction market analytics How I Work - 15-min discovery call → architecture plan within 24h - Daily updates, weekly demos, clear milestones - Fixed-scope projects ($15–40K) or monthly retainers - Available 8am–2pm EST, on-call during launches Engagements - Trading & market-data platforms - Quantitative research & analytics infrastructure - Scaling and hardening production systems 10+ years building financial systems. Top Rated Plus. 5-star reviews. Building something that needs to be fast, correct, and always up? Let’s talk.

I am a Node.js developer with over 15 years of Full-Stack development experience. I've built 220+ web projects. I have 10+ years in Node.js development. Besides, I specialize in SaaS, Dashboards, Healthcare, Marketplaces, MarTech, FinTech, Real Estate, mobile apps, and enterprise software. 🏆 112k+ billed Full-Stack Development 💎 $4m+ earned in Full Stack Development 🥇 Senior full stack developer in React.js Node.js AWS Next.js Nest.js JavaScript Developer 📢 Our client, Eventbrite company, boasting $580M in revenue, said about working with us: "𝗧𝗵𝗲 𝗖𝗹𝗼𝗰𝗸𝘄𝗶𝘀𝗲 𝘁𝗲𝗮𝗺 𝘄𝗮𝘀 𝗲𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝘁. 𝗪𝗲 𝗮𝗿𝗲 𝘁𝗵𝗿𝗶𝗹𝗹𝗲𝗱 𝘄𝗶𝘁𝗵 𝘁𝗵𝗲 𝗳𝗶𝗻𝗮𝗹 𝗽𝗿𝗼𝗱𝘂𝗰𝘁". As a skilled Node.js Developer, I’m proficient in AWS, Serverless, and Microservices, leveraging NestJS and ReactJS to craft scalable systems, and I specialize in building reliable solutions as a Node.js Developer using Vue.js Node.js, NestJS, and React.js. With Nest.js, I build strong server-side apps that have a smart structure and fast API routing. As a Node.js developer, I rely on TypeScript and Nest.js’s detailed docs to write code that’s easy to read and maintain. I also plug in extra Nest.js modules to simplify linking up with databases and outside services, making development quicker and more organized. I'm a skilled Node.js backend JavaScript developer with a focus on Node.js, crafting scalable and efficient server-side solutions. I harness MongoDB alongside Node.js to deliver versatile NoSQL database systems and possess deep knowledge of SQL for overseeing relational databases, ensuring data remains consistent and reliable. ➤ 𝗖𝗹𝗼𝗰𝗸𝘄𝗶𝘀𝗲 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗧𝗲𝗮𝗺 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 💯 100% Top Rated Plus - 🎯 Top 3% of companies 📢 50% of our clients work with us for over 3 years 💎 84% of our clients strongly recommend our Node.js expertise 🥇 Awarded 'Best Upwork Agency in Dnipro' by Upwork 4 years running 🏆 Named 'Top Ukraine Development Company' by Clutch 3 years in a row 📱💻 310+ successfully completed projects over 10 years with a 4.9🏆 3rd-party rating 👉 𝗪𝗵𝘆 𝗬𝗼𝘂 𝗦𝗵𝗼𝘂𝗹𝗱 𝗪𝗼𝗿𝗸 𝗪𝗶𝘁𝗵 𝗠𝗲 𝗔𝘀 𝗬𝗼𝘂𝗿 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 ☑️ Latest Technologies: As a Node.js Developer, I harness Node.js, NodeJS, React, Vue.js, MongoDB, and Angular to build modern, scalable web applications. My expertise in NodeJS ensures your business stays competitive. ☑️ End-to-End Product Development: With comprehensive skills in Node.js for back-end and front-end technologies, I deliver fully integrated solutions as a Node.js Developer. Using NodeJS, I ensure cohesive user experiences and robust performance for faster project delivery. ☑️ Expertise Across Multiple Industries: As a Node.js Developer, I’ve completed projects in MarTech, Real Estate, Logistics, Healthcare, Travel and Hospitality, and FinTech using Node.js. My adaptability with NodeJS tailors strategies to your market. 𝗡𝗼𝘁𝗮𝗯𝗹𝗲 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀 ✔ Customized AI chatbot SaaS built with Node.js and OpenAI ✔ Multi-tenant fleet management software powered by NodeJS React Developer ✔ Logistic using Node.js ✔ Fintech solutions with a strong UX focus, developed as a Node.js JavaScript Developer 𝗪𝗵𝗮𝘁 𝗜 𝗖𝗮𝗻 𝗗𝗼 𝗙𝗼𝗿 𝗬𝗼𝘂 𝗔𝘀 𝗮 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 ✔ Develop web apps and websites from scratch using Node.js ✔ Handle client-side and server-side development with NodeJS Backend Developer ✔ AI Chatbot Development | AI Chatbot Developer ✔ Design application architecture tailored to your needs using Node.js ✔ Integrate third-party services (payment systems, Google services, social networks) with NodeJS Full Stack Developer ✔ Optimize high-load apps for speed, scalability, reliability, and security as a Node.js Developer ✔ Write comprehensive unit tests with Node.js for optimal user experiences As a passionate full stack developer Node.js Developer, I embrace new challenges and technologies. If your project requires unfamiliar tools, I’ll master them with Node.JS to deliver results. Have an idea needing skilled implementation? 𝗟𝗲𝘁’𝘀 𝗱𝗶𝘀𝗰𝘂𝘀𝘀 𝗵𝗼𝘄 𝗺𝘆 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗲𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 𝗰𝗮𝗻 𝗯𝗿𝗶𝗻𝗴 𝘆𝗼𝘂𝗿 𝘃𝗶𝘀𝗶𝗼𝗻 𝘁𝗼 𝗹𝗶𝗳𝗲! 👌

Senior Java Fullstack Developer with 6+ years of experience building scalable, cloud-native enterprise systems using Spring Boot, React, Angular, Microservices, and AWS. I specialize in: - Java/Spring Boot backend development & REST API design - Microservices architecture with Docker & Kubernetes - Cloud deployment on AWS (EC2, S3, Lambda, RDS) - Frontend development using React, Redux, Angular, TypeScript - Database optimization (PostgreSQL, MySQL, MsSQL, Oracle, Sybase, MongoDB, Apache Solr, Redis, Elasticsearch, DynamoDB) - Event-driven systems with Apache Kafka & RabbitMQ - CI/CD pipelines with Jenkins, Maven & Git Projects I've delivered include real-time analytics platforms, fintech payment systems, e-commerce backends, and enterprise SaaS applications — all built for high availability and performance at scale. Top Rated Plus on Upwork (Top 3%) | 100% Job Success | Toptal Qualified (Top 3% Global Talent) If you need a reliable Java developer to architect and deliver production-ready backend systems, let's connect.

Hi, I'm Tanul have 6+ years of experience in DevOps operations. I'm an Innovative Senior DevOps Engineer with a strong Linux background of experience designing, implementing, and managing cutting-edge deployment automation of cloud resources. Highly experience in supporting, automating, and optimizing mission-critical deployments in AWS, leveraging configuration management, CI/CD, and DevOps processes. I tend to specialize in jobs involving Amazon Elastic Container Service (Amazon ECS), Lambda, and AWS RDS. Still, I also have lots of experience with S3, IAM, SES, SQS, SNS, EC2, and DynamoDB. DevOps tools & scripting languages that I've worked on- ======================================== Cloud Computing - AWS - Azure - Digital Ocean - GCP - Ali Cloud - Heroku - Oracle Cloud - Open Stack CI/CD - Jenkins - AWS Code Pipeline - AWS Code Deploy - AWS Code Build - GCP Cloud Build - Gitlab CI/CD - Bitbucket CI/CD - Bamboo - Github CI/CD - Heroku CI/CD Infrastructure As Code - Terraform - Cloud Formation - Ansible Scripting/Automation - Bash/Shell Script - Python Scripting Configuration Management Tools - Ansible - Puppet Monitoring - Check_MK - Nagios - Prometheous and Grafana - Elastic Search - Kibana - Logstash - Cloud Watch - Cloud Trail - Zabbix - Cacti - Pingdom - Data dog - Azure Monitor Containerization and Orchestration - Docker - Kubernetes - AWS EKS - AWS ECS - GCP GKS - Azure AKS - Azure ACS - OpenShift Web Servers - Nginx - Apache - Apache Tomcat - HAproxy - IIS Application Servers - PM2 - Puma - Node.js - PHP - ROR - .Net - Python/Django - Wildfly/Jboss - .Net Core - Java Version Control System - Bitbucket - AWS Code Commit - Azure Repos - Gitlab - Github Databases - MySQL - Postgres - MongoDB - MariaDB - Redis - Memcache - Memory Store - AWS RDS Service - MS SQL Most recently, as an AWS Certified Architect, I have specialized in AWS solutions and have been working for the last years providing independent consultors to many companies. I have strong experiences with many specialized AWS services, such as Lambda, IoT, Kinesis, Redshift, Glue, and Athena. Thanks Tanul

I specialize in creating robust, secure solutions specifically designed for your business idea, helping you validate it and find product-market fit or pivot effectively if needed. Proven experience in SaaS, Ecommerce, PropTech, and EdTech. I prefer to take ownership and deliver results precisely and on the agreed schedule. I'm a full-stack engineer with an M.Sc. and over 14 years of experience in designing, developing, and analyzing data-heavy applications, with a recent focus on integrating AI capabilities. My clients value my ability to anticipate and solve problems, offering various solutions. I am skilled in supporting individuals and teams throughout the development process. I specialize in: - Full-stack development for Web, Progressive Web Apps, Back-ends for mobile apps - AI integration to the Web and Mobile apps - AI Chat Bots, RAG based on Langchain - RESTful and GraphQL APIs and API integrations - Libraries and Middlewares - ETL Pipelines and Web Scraping; - Database designing - Performance optimizations - Problem solving and bugs fixing I am most efficient in using the following stack and technologies; however, my experience and ability to learn extend far beyond these: - Languages: Javascript/Typescript, Python - Generative AI: Custom GPTs, TextToImage, ImageToImage, TTS, Voice cloning, Langchain - Frameworks: Nodejs, React, Nextjs, Vuejs, Angular - Technologies: REST, GraphQL, PWA - UI Libraries: MUI, Bootstrap, TailwindCSS - Databases: NoSQL with MongoDB and DynamoDB; SQL including MySQL and PostgreSQL - Testing: Jest, Mocha, Chai - Caching: Redis - Deployment and infrastructure: Docker, Amazon Web Services, Terraform, DigitalOcean, Supabase, Vercel, k8s My wide full stack experience and analytical mindset gives me an ability to analyze complex problems and break them down into manageable and straightforward steps. In my work, I prioritize thoroughly analyzing requirements. I believe that success depends on having clear goals. I'm specifically good at creating technical requirements and specifications, anticipating problems, and balancing quality with the speed of development. Choose me, and you'll gain a partner fully dedicated to bringing your vision and product to life.

I'm a seasoned full-stack developer specializing in JavaScript/NodeJS technologies 𝘄𝗶𝘁𝗵 𝗼𝘃𝗲𝗿 𝟕+ 𝗬𝗲𝗮𝗿𝘀 𝗼𝗳 𝗲𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 𝗶𝗻 𝗠𝗘𝗥𝗡 (MongoDB, ExpressJS, ReactJS, and NodeJS) stack application development. 𝗪𝗲𝗯 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 𝗙𝗿𝗼𝗻𝘁𝗲𝗻𝗱: ✅ ReactJS Redux ✅ React Native ✅ Three.Js ✅ JavaScript, TypeScript ✅ MVP ✅ HTML, CSS, Bootstrap, Tailwind CSS, and Material-UI ✅ UI Design using Figma ✅ NextJS ✅ Proficient in working with REST APIs ✅ OAuth ✅ Unit testing(Jest, React testing library) ✅ Integration testing(Selenium) 𝗕𝗹𝗼𝗰𝗸𝗰𝗵𝗮𝗶𝗻 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: ✅ Web3.js and Ethers.js for Blockchain Interaction ✅ Solana Development (Anchor Framework, Solana Wallet Integration) ✅ Ethereum Development (Smart Contracts using Solidity, OpenZeppelin) ✅ NFT Marketplaces (Minting, Trading, Metadata Integration) ✅ Token Standards (ERC-20, ERC-721, SPL Tokens) ✅ Truffle, Hardhat, and Ganache for Development & Testing ✅ Decentralized Storage (IPFS, Filecoin) ✅ Wallet Integration (Metamask, Phantom) ✅ Cross-Chain Solutions and Bridging 𝗕𝗮𝗰𝗸𝗲𝗻𝗱: ✅ Node.js, Express.js ✅ Ruby on Rails ✅ AWS ✅ MySQL ✅ Elasticsearch ✅ Firebase ✅ MongoDB ✅ CI/CD ✅ Unit testing(Jest, React testing library) 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲? ✅ Uncompromising Quality + Client Satisfaction ✅ Competitive Pricing ✅ Focus on Security ✅ Comprehensive Post-Order Support ✅ A Trustworthy Permanent Developer Still have questions or specific requirements? If none of the available packages suit your needs, don't hesitate to reach out via inbox. Thank you,

✓ Technology executive specializing in architecting and implementing highly scalable solutions to drive brand awareness, increase revenues, optimize productivity and improve margins. ✓ Overseeing the data, security, maintenance, and network for a company. ✓ Implementing the businesses’ technical strategy and managing the overall technology roadmap of the business. ✓ involved with talent acquisition and its onboarding, training, and management of Project Manager, product Manager, Developers, Devops, Designers. ✓ Setting the technical strategy for the company to enable it to achieve its goals. ✓ Seeking out the current and future technology that will drive the company’s success. ✓ Focus on strategic alignment of technology goals to organizational vision. ✓ Passionately committed to technology team development, empowering people to accomplish their goals and coaching them realize their individual potential. ✓ Proven track-record of success in technology product development, cloud infrastructure,Building Data Platforms, ETL Pipelines, Streaming Pipelines ,e-commerce, CRM ,mobile strategy, and social media integration. I am working from last 8 years with Apache Spark, Lucene, ElasticSeach/Kibana, Amazon EC2.RDBM's(SQL, MySQL, Aurora, PSQL, Oracle), NoSQL engines (Hadoop/HBase, Cassandra,DynamoDB, MongoDB),GraphDB(Neo4j, Neptune) in-memory databases (Hazelcast, GridGain), Apache Spark/MLib, Weka, Kafka, clustered file systems, general-purpose computing on GPU. Deploying the ML DL Models on GPU Instances(Nvidia). Have a great experience in query optimization, application profiling, and troubleshooting. My area of expertise includes: - Python script - Jira,Trello,Azure DevOps - Web scraping - AWS(Redshift, Glue, ECS, EC2, EMR, Kinesis, S3, RDS, VPC, IAM,DMS) - GCP(Big Query, DataFlow, SnowFlow) - Microsoft Azure - Hadoop Big Data - Elasticsearch/Kibana/Logtash(ELK) - Hadoop setup on standalone, Cloudera, and HortonWorks. - SQL like MySQL PostgreSQL - NoSql Database like Hbase and MongoDB - Machine learning - Deep Learning - Spark with Mlib,GraphX - Sphinx - Memcache - MS BI/Tableau/GDS

𝗜 𝗵𝗲𝗹𝗽 𝗳𝗼𝘂𝗻𝗱𝗲𝗿𝘀 𝗮𝗻𝗱 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝘁𝗲𝗮𝗺𝘀 𝘀𝗵𝗶𝗽 𝗳𝗮𝘀𝘁𝗲𝗿 𝗯𝘆 designing and implementing serverless architecture designs and following async development best practices. With 5+ years of experience in cloud application development, DevOps, and scalable SaaS systems (using Amazon Web Services), I specialize in Serverless technology that provides the technical backbone that allows startups to launch features faster, reduce bugs, and scale without stress. 𝗛𝗶𝗴𝗵𝗹𝗶𝗴𝗵𝘁𝘀 𝗳𝗿𝗼𝗺 𝗣𝗿𝗲𝘃𝗶𝗼𝘂𝘀 𝗣𝗿𝗼𝗷𝗲𝗰𝘁𝘀: ✔️ Amazon Web Services (AWS) – Built reusable React + TypeScript CDK templates, saving 100+ developer weeks (over $280,000 USD in dev costs saved) across 13 AWS teams. ✔️ AWS JAMS – Designed CloudFormation + IAM policies for 4 systems, with 2 ranked in the Top 10 AWS JAMS of 2023. ✔️ Healthcare SaaS – Integrated 3rd-party healthcare clearinghouse SOAP API, increasing automation of transactions by 5% and enabling faster claims processing. ✔️ Enterpise Healthcare Company – Migrated 20+ enterprise healthcare apps from Java/Angular to modern React micro frontends, successfully onboarding 5+ dev teams and reducing compliance risks. 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿 𝗶𝗻 𝗦𝗽𝗿𝗶𝗻𝘁𝘀: ◉ CI/CD Pipelines → Automated testing + deployments (GitHub Actions, GitLab CI, AWS CodePipeline) ◉ Scalable Cloud Infrastructure → AWS Lambda, API Gateway, DynamoDB, S3, written in either Terraform or Typescript AWS CDK ◉ Automated Testing Coverage → Jest, Cypress, Playwright for JavaScript/TypeScript + Python stacks ◉ Developer Workflow Optimization → Clear processes, documentation, and faster release cycles 𝗠𝘆 𝗔𝗽𝗽𝗿𝗼𝗮𝗰𝗵 ● Fast Impact → I prioritize immediate bottlenecks that save teams the most time. ● Clarity First → Every sprint comes with documentation + actionable steps your team can own. ● Scale in Mind → Systems built today that support your growth tomorrow. 𝗜𝗳 𝘆𝗼𝘂’𝗿𝗲 𝗯𝘂𝗶𝗹𝗱𝗶𝗻𝗴 an MVP 𝗮𝗻𝗱 𝗻𝗲𝗲𝗱 𝗲𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝘀𝘆𝘀𝘁𝗲𝗺𝘀 𝘁𝗵𝗮𝘁 𝘀𝗰𝗮𝗹𝗲 𝗮𝘀 𝗳𝗮𝘀𝘁 𝗮𝘀 𝘆𝗼𝘂𝗿 𝗽𝗿𝗼𝗱𝘂𝗰𝘁 𝘃𝗶𝘀𝗶𝗼𝗻, 𝗜 𝗰𝗮𝗻 𝗵𝗲𝗹𝗽 𝘆𝗼𝘂 𝗴𝗲𝘁 𝘁𝗵𝗲𝗿𝗲.

⭐⭐⭐⭐⭐ "Juan Pablo is one of the best freelancers I've ever worked with. I've recruited nearly 80 people on Upwork and, clearly, he's in the top 3 of experts I'd highly recommend." — Sep 2024 🏆 100% Job Success · 🥇 Expert-Vetted · 📈 $900K+ delivered · 20+ years in Cloud & AI I'm the founder of Cloudacio — an AWS Select Partner agency with Top Rated Plus status and 6 consecutive years of 5-star delivery on Upwork. I work directly with CTOs and founders at Series A–C SaaS companies who need cloud expertise without hiring a full in-house platform team. What I help with: 📊 FinOps & Cloud Cost Optimization — Pay-as-you-save model. I've helped clients cut AWS spend by up to 73%. You only pay for results. 🛡️ SOC 2 & Cloud Compliance — From gap assessment to audit-ready using compliant-by-design infrastructure blueprints on AWS, GCP, and Azure. 🚀 SaaS Scaling & Well-Architected Reviews — Multi-region architecture, Kubernetes, Terraform IaC, and 24×7 AI-native cloud ops. 🤖 AI & Data Engineering — RAG pipelines, LLM integrations, MLOps on AWS SageMaker, and data platforms using Spark, dbt, and Redshift. How I work: I bring both strategic and hands-on depth — I architect solutions and I know exactly how they're built. When a project needs a team, I bring in Cloudacio. When it needs a trusted advisor, I show up. 📬 Send me a message. I respond within 4 hours during business hours. Skills & Technologies: AWS, Amazon Web Services, GCP, Google Cloud Platform, Azure, Microsoft Azure, cloud architect, cloud architecture, cloud consultant, cloud consulting, cloud engineer, cloud engineering, DevOps, DevOps engineer, platform engineer, platform engineering, site reliability engineer, SRE, fractional CTO, CTO as a service, infrastructure architect, solutions architect, AWS architect, cloud migration, cloud migrations, lift and shift, re-platforming, modernization, application modernization, serverless, serverless architecture, Lambda, AWS Lambda, API Gateway, Step Functions, EventBridge, EC2, ECS, EKS, Fargate, Kubernetes, K8s, Docker, containers, containerization, microservices, service mesh, Istio, RDS, Aurora, DynamoDB, PostgreSQL, MySQL, Redis, ElastiCache, S3, CloudFront, Route 53, ALB, NLB, load balancing, auto scaling, autoscaling, multi-region, high availability, disaster recovery, fault tolerance, backup, business continuity, Terraform, Terraform modules, Infrastructure as Code, IaC, Pulumi, CloudFormation, CDK, AWS CDK, Ansible, Chef, Puppet, CI/CD, continuous integration, continuous deployment, continuous delivery, GitHub Actions, GitLab CI, CircleCI, Jenkins, ArgoCD, FluxCD, GitOps, blue-green deployment, canary deployment, rolling deployment, monitoring, observability, logging, alerting, CloudWatch, Datadog, Grafana, Prometheus, New Relic, ELK, OpenTelemetry, APM, cost optimization, cloud cost optimization, FinOps, cloud financial management, cost reduction, AWS cost reduction, Reserved Instances, Savings Plans, spot instances, rightsizing, cloud spend, cloud savings, billing analysis, SOC 2, SOC2, compliance, cloud compliance, security, cloud security, HIPAA, PCI-DSS, ISO 27001, GDPR, FedRAMP, NIST, CIS benchmarks, IAM, identity and access management, zero trust, VPC, networking, cloud networking, VPN, Direct Connect, Transit Gateway, WAF, Shield, GuardDuty, Security Hub, encryption, KMS, secrets management, vulnerability management, penetration testing, AI, artificial intelligence, machine learning, ML, MLOps, LLM, large language models, GPT, generative AI, RAG, retrieval augmented generation, AI integration, AI automation, SageMaker, Bedrock, AI infrastructure, data engineering, data pipeline, ETL, ELT, Spark, Apache Spark, dbt, Redshift, BigQuery, Snowflake, data lake, data warehouse, Glue, Athena, Kinesis, streaming, real-time data, Python, Go, Golang, Node.js, TypeScript, Bash, scripting, automation, cloud automation, infrastructure automation, Linux, Ubuntu, Amazon Linux, Windows Server, Nginx, Apache, web server, database administration, DBA, performance tuning, scalability, scaling, SaaS, SaaS infrastructure, startup, startups, Series A, Series B, Series C, B2B SaaS, multi-tenant, Well-Architected Review, AWS Well-Architected, cloud assessment, cloud audit, architecture review, technical due diligence, vendor management, cloud strategy, digital transformation, agile, scrum, technical leadership, team augmentation, staff augmentation, managed services, cloud managed services, 24x7 support, on-call, incident response, incident management, runbooks, SLA, uptime, reliability, Helm, Kustomize, Crossplane, Vault, HashiCorp, Consul, Nomad, Packer, Vagrant, cloud native, CNCF, twelve-factor app, API design, REST, GraphQL, event-driven architecture, message queue, SQS, SNS, Kafka, RabbitMQ, Celery, cron, scheduling, batch processing, image processing, video processing, CDN, edge computing, CloudFlare, Vercel, Netlify, Amplify, static hosting, WordPress hosting, PHP, Laravel, web development.

🚀 Top-Rated Node.js Backend Developer specializing in high-performance APIs and AWS serverless solutions 6+ years building production-grade backends for startups and Fortune 500 companies. I turn complex business requirements into scalable, lightning-fast APIs that handle millions of requests seamlessly. What I Deliver: ✅ Lightning-Fast APIs – REST & GraphQL endpoints optimized for performance ✅ AWS Serverless Architecture – Lambda, API Gateway, DynamoDB solutions ✅ Database Excellence – MongoDB, PostgreSQL, MySQL optimization & design ✅ React Integration – Seamless frontend-backend connectivity ✅ DevOps Automation – CI/CD pipelines, Docker, Kubernetes deployment Core Technologies: * Backend: Node.js, Express.js, Fastify, NestJS * Cloud: AWS Lambda, API Gateway, S3, CloudFormation, CDK * Databases: MongoDB, PostgreSQL, MySQL, DynamoDB, Redis * Frontend Integration: React.js, Next.js, Redux, TypeScript * DevOps: Docker, Kubernetes, GitHub Actions, Terraform * Authentication: JWT, OAuth2, Auth0, Cognito Proven Results: ⚡ 50% faster API response times through query optimization & caching 💰 30% infrastructure cost reduction via serverless migrations 📈 100K+ daily users supported across production applications ⏱️ 10+ hours saved weekly through automated deployment pipelines Services I Provide: Backend Development * Custom RESTful and GraphQL API development * Microservices architecture design and implementation * Legacy system modernization and refactoring * Third-party API integrations (Stripe, SendGrid, Twilio) AWS Cloud Solutions * Serverless application development (Lambda, API Gateway) * Infrastructure as Code (CloudFormation, CDK, Terraform) * Auto-scaling and load balancing setup * Cost optimization and performance monitoring Database Engineering * Database schema design and optimization * Query performance tuning and indexing * Data migration and synchronization * Backup and disaster recovery solutions Full-Stack Integration * React.js frontend-backend integration * Server-side rendering (SSR) with Next.js * Real-time features with Socket.IO * State management with Redux/Context API Why Top Companies Choose Me: ⚡ Speed & Reliability – I deliver production-ready code on tight deadlines without compromising quality 🔍 Problem Solver – I identify bottlenecks before they impact users and architect solutions that scale 📱 Communication Excellence – Daily progress updates, detailed documentation, and clear milestone tracking 🛡️ Security First – Industry best practices for authentication, data protection, and GDPR compliance Recent Success Stories: * E-commerce Platform – Built scalable API handling 50K orders/day, reduced checkout time by 40% * FinTech Startup – Developed secure payment processing system, achieved PCI compliance * SaaS Application – Migrated monolith to microservices, improved deployment speed by 80% Available for: * Fixed-price projects * Hourly contracts (40 hours/week) * Long-term partnerships (3+ months) Message me with: 1. Your project requirements 2. Timeline expectations 3. Current challenges you're facing I typically respond within 2 hours and can start immediately. Keywords : Node.js developer, Express.js expert, AWS serverless, Lambda functions, API development, REST API, GraphQL, MongoDB, PostgreSQL, MySQL, React integration, Next.js, serverless architecture, microservices, Docker containers, Kubernetes, CI/CD pipelines, DevOps automation, database optimization, performance tuning, JWT authentication, OAuth2, real-time applications, Socket.IO, Redis caching, cloud migration, infrastructure as code, Terraform, CloudFormation, API Gateway, DynamoDB, backend development, full-stack development, TypeScript, JavaScript, payment integration, Stripe API, third-party integrations, scalable applications, high-performance APIs, database design, query optimization, serverless migration, cost optimization, automated testing, Jest testing, code review, technical documentation, agile development, scrum methodology, startup development, enterprise solutions