Fullstack web app developer with 9+ years of experience, I have a strong background in MERN stack development. I've also worked on Django, Flask projects. On the frontend, I specialise in ReactJS and NextJS, as well as other popular frontend tools and libraries like Material UI, Ant Design, TailwindCSS, Bootstrap, Sass, and Styled Components. On the backend, I am proficient in NodeJS and its popular frameworks such as Express, Nest.js, KoaJS, and FeathersJS. I have experience working with databases like MongoDB, MySQL, PostgreSQL, OpenSearch and ElasticSearch, as well as integrating with third-party APIs such as payment, geolocation, accounting, and SMS APIs. I am skilled in Test Driven Development (TDD) using both Jest and Mocha. I've also written end 2 end tests using playwright and puppeteer. I am proficient in Git, GitHub, and other version control tools. I have excellent written and verbal communication skills in English. I am excited to add value to your next project and provide the technical expertise you need. Thank you for your consideration, and I look forward to working with you soon!

⚡𝗥𝘂𝗯𝘆 𝗼𝗻 𝗥𝗮𝗶𝗹𝘀 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 𝗮𝗻𝗱 𝗥𝗲𝗮𝗰𝘁 𝗡𝗼𝗱𝗲.𝗷𝘀 𝗙𝘂𝗹𝗹-𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 · 𝟭𝟬𝟬% 𝗝𝗦𝗦 · 𝟴+ 𝘆𝗿𝘀 · 🛡️𝗟𝗶𝗳𝗲𝘁𝗶𝗺𝗲 𝗰𝗼𝗱𝗲 𝘄𝗮𝗿𝗿𝗮𝗻𝘁𝘆. Clients come to me when the product has real complexity - payment flows, multi-role systems, third-party integrations, data-heavy architectures that hold up for years. ✅ 𝗖𝗹𝗶𝗰𝗸 𝗛𝗶𝗿𝗲 𝗼𝗿 𝗜𝗻𝘃𝗶𝘁𝗲 to work with a Node.js Full-Stack Developer who owns the architecture, not just the tickets. 🎯 𝗪𝗛𝗔𝗧 𝗬𝗢𝗨 𝗚𝗘𝗧 ✔️ As a Node.js Full-Stack Developer - full ownership from architecture to deployment. React, Node.js, TypeScript, PostgreSQL, Redis, REST API, Docker, AWS. Clean, documented code. ✔️ As a Full-Stack Web Development React Node specialist - end-to-end SaaS platforms, payment integrations (Stripe, Xero), multi-role admin panels, Elasticsearch reporting. 40-60% faster delivery than split-role teams. ✔️ As a Ruby on Rails Developer - Rails 4-7.1 codebases, monolith upgrades, RSpec-covered backends, Sidekiq async. 8+ years, 15+ production systems shipped. ✔️ As a Node.js Full-Stack and Ruby on Rails Developer React engineer - Next.js, React, TypeScript paired with Node.js or Rails. Full-Stack Web Development React Node delivery across FinTech, EdTech, B2B SaaS. 🔥 𝗦𝗢𝗠𝗘 𝗣𝗥𝗢𝗝𝗘𝗖𝗧𝗦 ✔️ Greek Capital (USA) - accounting + CRM SaaS, Elasticsearch reporting, automated workflows. Ruby on Rails Developer · Full-Stack Web Development React Node. Ongoing since 2017 ($100-250k). ✔️ Roi (Norway) - finance PWA: Stripe, asset tracking, investment calculator. React Node.js Full-Stack · Ruby on Rails Developer React · TypeScript. ✔️ MilkMind (France) - high-load EdTech marketplace, AI integration, video, Stripe. Node.js Full-Stack Developer · Ruby on Rails Developer React · Next.js. ✔️ Sket (Belgium) - LegalTech SaaS: contract automation, blockchain. Ruby on Rails Developer · React Node.js Full-Stack · RSpec. ✔️ H&P Builder (USA) - EHR product, multi-level admin. Full-Stack Web Development React Node · Node.js Full-Stack Developer. 🚀 𝗪𝗛𝗘𝗥𝗘 𝗜 𝗗𝗘𝗟𝗜𝗩𝗘𝗥 ✔️ FinTech SaaS - as a Node.js Full-Stack Developer and Ruby on Rails Developer: payment integrations, credit management, accounting platforms. US, UK, Nordics. 8+ years, zero payment flow failures. ✔️ EdTech & marketplaces - Full-Stack Web Development React Node and React Node.js Full-Stack: high-load architecture, AI integration, video delivery, subscription logic. 30-50% better scalability. ✔️ LegalTech & compliance - Ruby on Rails Developer React and React Node.js Full-Stack: blockchain, document automation, audit-trail data flows for EU-market compliance SaaS. ✔️ HealthTech & EHR - Node.js Full-Stack Developer and Full-Stack Web Development React Node: secure document generation, recommendation logic, HIPAA-aware. ✔️ B2B SaaS - Ruby on Rails Developer, Node.js Full-Stack Developer, Full-Stack Web Development React Node: permission layers, file management, long-term codebase ownership. 🏆 𝗜𝗡𝗗𝗨𝗦𝗧𝗥𝗬 𝗩𝗘𝗥𝗧𝗜𝗖𝗔𝗟𝗦 ✔️ FinTech - Node.js Full-Stack Developer and Ruby on Rails Developer: Stripe, Xero, credit SaaS. Zero payment errors across 8 years. ✔️ EdTech - Full-Stack Web Development React Node and React Node.js Full-Stack: AI-powered, high-load marketplace platforms. ✔️ LegalTech - Ruby on Rails Developer and Ruby on Rails Developer React: smart contracts, document automation, blockchain. ✔️ HealthTech - React Node.js Full-Stack and Full-Stack Web Development React Node: EHR, secure data, recommendation logic. ✔️ B2B SaaS - Node.js Full-Stack Developer: Ruby on Rails Developer React architecture, full ownership. ⚒️ 𝗛𝗢𝗪 𝗜 𝗕𝗨𝗜𝗟𝗗 ✔️ Core - Node.js Full-Stack Developer and Ruby on Rails Developer: Node.js, ExpressJS, Ruby on Rails (4-7.1), JavaScript, TypeScript, React, Next.js, Vue.js, PostgreSQL, Redis, Docker, AWS, REST API, RSpec. ✔️ Frontend - Full-Stack Web Development React Node: React, TypeScript, HTML, HTML5, CSS, CSS 3, Bootstrap, Tailwind CSS, jQuery, Web Design, Mobile App Development. ✔️ Backend - React Node.js Full-Stack builds: ExpressJS, MongoDB, MySQL, SQL, PHP, Laravel, CodeIgniter, Python, API Integration, API, Database Architecture, Software Architecture & Design, Agile Software Development. ✔️ Ecosystem: React Native, Angular, AngularJS, WordPress, WooCommerce, Shopify, iOS Development, Android App Development, Git, Software Development, Software Debugging, Product Development, Search Engine Optimization. ✔️ Creative & extended: Graphic Design, Adobe Photoshop, Adobe Illustrator, Web Application, Software Design, Desktop Application, Data Entry, Ruby, RSpec, PostgreSQL. 🔹 Node.js Full-Stack Developer · Full-Stack Web Development React Node · React Node.js Full-Stack · Ruby on Rails Developer - lifetime warranty on every line of code. 🔹 Ruby on Rails Developer React · UTC+2 · async-friendly Building a product? 👉 Message and let me support your way on a risk-free way..

End to End App Development (Architecting, Database design, Backend, Frontend, Integration, Deployment Automation) - Have developed 30+ SaaS Apps - Strong hand in complex applications in domain like Fintech, Healthcare, Productivity tools, marketplaces etc 15+ years experience in AWS / Javascript / Node.js / Nest.js / Angular / React / React Native / Next.js / Vue.js /Typescript / GraphQL / Serverless framework / AWS CDK development. - Expert in Serverless Architecture - Expert in Multi-tenant serverless applications - Have Worked on 50+ AWS services -------------------------------------------------------------------------------------------------------------- Following are the list of technology expertise:- - AWS Services - AWS lambda, S3, RDS, Dynamo, API gateway, cloud watch, SNS, SQS, SES, Cognito, Lex, Alexa, Cloudfront, Cloudformation, EC2, Rekognition, Kinesis, Machine Learning, IoT, AppSync, Step Functions, Amplify, Elasticsearch, ElastiCache, Transcribe and more - Node.js, Nest.js, Python - Frontend - HTML,CSS, Javascript, Angular, React.JS, React Native, Next.JS, Vue.js - Databases - MySQL, PostgreSQL, RDS, Dynamodb, Aurora - Automation - Selenium, Cypress Integration Experience: - Payment / Fintech:- Chargebee, Stripe, stripe connect, razorpay, worldnet, Clover, Paypal, Authorise.net, NMI, Braintree, Plaid, voucherify, transafe, paytrace, quickbooks, quickbooks desktop (QBD), Sage, Ordertime, Netsuite Others:- Emailoctopus, Google Map APIs, Google Cloud Platform, Auth0, Machine Learning, Slack, Flock, Twillo, purechat, tawk.to, Zapier, Quickblox, ChatGPT and more Project Management and Performance: Gitlab, Projects, Bitbucket, Trello, Github, Jira, Clickup, Jenkins, Sentry, rollbar, circleci Have worked on Projects in following Domain - Fintech, Payments Industry - Medical and Healthcare - Manufacturing - E-learning - HR (Human Resources) - Marketplaces & E-commerce - Event Management, Ticketing - Lead Generation Tools - Face Recognition - Transcribe - Petcare

I help tech teams and businesses design, automate, and scale cloud infrastructure that supports innovation without sacrificing reliability. With hands-on experience across AWS, GCP, and Azure, I build resilient DevOps pipelines and cloud-native architectures that are production-ready from day one. 🔧 What I Offer: Cloud Infrastructure Architecture Designing scalable, secure, and cost-efficient infrastructure using AWS, Google Cloud, and Azure best practices. From serverless to Kubernetes, I tailor systems based on your product stage and business needs. DevOps Automation & CI/CD Pipelines Automating build, test, and deployment workflows to enable rapid iteration, reduce human error, and deliver consistent results. I specialize in GitOps, Terraform IaC, Kubernetes clusters, and container orchestration at scale. Multi-Cloud & Hybrid Cloud Strategy Experience architecting and operating systems across multiple cloud providers. I help companies migrate, optimize, and manage multi-region, multi-cloud infrastructure with high availability and compliance in mind. SRE & Observability I implement logging, monitoring, and alerting to keep your services reliable and easy to troubleshoot. I bring a Site Reliability Engineering mindset to every infrastructure design, balancing innovation with uptime. 📌 Real-World Results: – Built and scaled a multi-cloud robotics data platform handling large-scale data pipelines across AWS and GCP with Kubernetes, Linkerd, and Terraform. – Designed cloud infrastructure with cross-region failover and SRE practices for an industrial IoT platform, reducing downtime and ensuring business continuity. – Set up automated deployments and secure CI/CD pipelines for UTM (drone) systems and e-commerce platforms, decreasing deployment time by 60% and boosting release confidence. – Helped startups save 30–40% on cloud costs while increasing performance and resilience by optimizing infrastructure and introducing IaC. 🛠 Tools & Tech Stack: – Cloud Platforms: AWS, GCP, Azure – Infrastructure as Code: Terraform, Helm, CloudFormation – CI/CD & Automation: GitHub Actions, GitLab CI, Jenkins, Travis CI – Containerization & Orchestration: Docker, Kubernetes, ECS, Fargate – Monitoring & Observability: Prometheus, Grafana, ELK, Datadog – Languages: Go, Python, Bash, JavaScript, YAML I don't just set up infrastructure—I ensure it's scalable, secure, and optimized for your product's lifecycle. Whether building an MVP, preparing for growth, or modernizing your stack, I'll help you create a cloud foundation that powers your success. Let's discuss how we can build the right infrastructure for your future. 🚀

Full Stack + DevOps + AI Agent Engineer | End-to-End Product Builder I help businesses design, build, and scale complete digital systems — from infrastructure → backend → frontend → AI automation. If you're looking for someone who can own the entire technical stack and deliver real business outcomes, you're in the right place. 💼 What I Deliver ⚙️ 1. Scalable Cloud Infrastructure & DevOps I design and manage production-grade systems that are reliable, secure, and cost-efficient. Cloud: AWS, Azure, GCP Infrastructure as Code: Terraform, Ansible CI/CD pipelines (GitHub Actions, GitLab, Jenkins) Docker, Kubernetes, microservices architecture Monitoring, logging, auto-scaling, cost optimization 🌐 2. Full Stack Web Application Development I build high-performance, modern web applications from MVP to scale. Frontend: Next.js, React.js Tailwind CSS (clean, responsive UI) SEO & performance optimization Backend: Python (Django, Flask, FastAPI) REST APIs & scalable architectures PostgreSQL, MongoDB 🤖 3. AI Agents & Automation Systems I develop intelligent AI agents that automate sales, support, and workflows — beyond basic chatbots. LangChain, LangGraph, n8n (multi-agent systems) RAG pipelines & vector databases Azure AI Foundry, Amazon Bedrock, OpenAI Custom MCP (Model Context Protocol) development Use Cases: AI chat + voice agents (Website, WhatsApp, Instagram) Lead generation & qualification automation Customer support automation Workflow automation across CRM & tools 🔥 How I Work I think in systems, not just tasks I focus on business impact (leads, conversions, automation) I deliver clean, scalable, production-ready solutions I can handle everything end-to-end — no need for multiple hires 🎯 Ideal Projects SaaS product development (0 → 1 → scale) AI agent platforms & automation systems Cloud architecture & DevOps setup Full stack apps with AI integrations CRM, lead management, and sales automation systems

I build production B2B SaaS with AI at the core. One engineer who owns the full stack: frontend, backend, infra, and the AI itself. Selected production work: VendorFox (vendorfox.ai): B2B SaaS for Managed Service Providers, tracking hardware lifecycle, firmware, and security advisories across 48+ vendors. Built end-to-end by me. Next.js + TypeScript frontend, FastAPI backend on Cloud Run, Firestore multi-tenant, Firebase Auth, Stripe billing across four tiers. The AI layer is DAG-based LLM orchestration with structured outputs and an aggressive dedup and caching design that keeps API spend flat as data volume grows. Live, paying customers. DataAbyss (app.dataabyss.ai): earlier production work. OSINT intelligence platform used by government and national security professionals. Elasticsearch across billions of entity connections, RAG pipelines, LLM-powered chat interface. Gold Stevie Award for Achievement in Science or Technology, 2023 American Business Awards. What I build: Production LLM orchestration (structured outputs, retry logic, cost control that keeps API bills predictable), RAG pipelines with real retrieval tuning, vector search on pgvector and Pinecone, multi-tenant SaaS with Stripe billing and Firebase Auth, distributed agent workflows with concurrency control and fault tolerance. Stack: Next.js, TypeScript, FastAPI, Python, Node.js, PostgreSQL, Elasticsearch, Firebase, AWS, GCP, Cloud Run, Docker, LangChain, Claude, OpenAI, Stripe. Background: First-class Physics degree, Open University UK (4.0 US GPA equivalent)

I am very good at what I do and will make sure that you are completely satisfied with the end results. I can take your business workflow and data reporting needs and turn them into a user friendly application that will greatly improve your business productivity and save you time, etc. I've been working with Databases since 1984: including Oracle, PostgreSQL, MS Access, mySQL, etc. on unix, Windows and AWS environments. I have done data analysis, modeling, migration, conversion, integration, aggregation, mining, optimization, performance tuning, warehousing, etc. And extensive, varied and detailed reporting. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ See Complete Resume and Letters from Previous Projects in the Portfolio Section ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ • Business Analysis • Quality Assurance • Data Engineer • Data Migration • Data Conversion • Data Integration • Data Optimization • Data Warehouse • Data Scientist • Data Architect • Data Analyst • Data Analytical Skills • Innovation • Imagination • Business Requirements • Technical Requirements • Functional Requirements • Critical Thinking • Problem Solving • Presentation Skills • Communication Skills HIGHLIGHTED CAREER ACHIEVEMENTS ● Created a web Crawler and Scraper for a legal firm who wanted the data for all Probation candidates in all Counties in Florida. Loaded the data into a PostgreSQL database and exported the data in csv format to load into Excel. ● Migrated proprietary legacy financials system (FoxPro) to Oracle EBS Financials. Customized and added required functionality to maximize automation capabilities, fully utilizing every possible feature of the Oracle Financials Suite. (Financial Management Unit – City of New York) ● Created, tested and optimized systems for Stock Market firms including Corporate Reorg, Corporate Actions, Security Segregation and Exchanges, Washed Tax Lots Accounting, Cashiers Management, Collateral Management, Credit and Risk, etc. (DGT - Davidson Global Technologies) ● Designed, created, optimized and maintained a Data Warehouse for regional sales, marketing, analysis and reporting to various departments for a variety of corporate requirement (Costco) ● Developed completely automated AI expert system to test aircraft and other large machine oil samples and predict oil change, tune-up and/or maintenance requirements and the overall state of the equipment. (PMC – Predictive Maintenance Corp) EMPLOYMENT SUMMARY CMDX (Dominica) 2019-Present Lingoda (Germany) 2018-2019 GMA Grading (Tampa, FL) 2018 Chargeback Gurus 2017– 2018 Exxon-Mobile (Scotland) 2017 Matrix-IFS (Herzliya, Israel) 2015 – 2017 NYSIF (New York State Insurance Fund) 2014 – 2015 Federal Reserve Bank of New York 2012 – 2014 Emblem Health (GHI, HIP) 2012 – 2012 Bank of America 2011 – 2012 Davidsohn Global Technologies 2010 – 2011 Spartech Polycast Corporation 2009 – 2010 Dynamic Imaging (GE Healthcare) 2008 – 2009 City of New York, Financial Management Unit 2001 – 2008 American Welding Society (AWS) 1999 – 2001 TECHNICAL SKILLS Operating Systems: Unix, Linux, Solaris, Xenix, AIX, HP-UX, DOS, Unisys and IBM Mainframe, VMS, Windows Software: ORACLE Ver. 8.1.7, 8i, 9i, 10g, 11i, 11g, 12c; Oracle; RICE (Reports, Interfaces, Conversions, Extensions), eBusiness Suite (EBS), Financials, Discoverer, OLAP, Developer, Designer, Forms, Reports, TOAD, SQL Developer, PL/SQL Developer, AquaData Studio, SQL*Loader, SQR, Peter Martin Associates (PMA) FACTORS, HTML, rpt, rpt2c, ctar, awk, sed, MS Access, FoxPro, Sybase, PostgreSQL, MySQL, ElasticSearch (ELK), PHP, Rexx, lynx, Lotus Notes (Domino), JIRA, uDeploy, TortoiseSVN, Actimize, etc Education, Training & Certifications PROFESSIONAL ASSOCIATIONS & COURSES • Peter Martin Associates FACTORS/SA System Administrator Certified • Canadian School of Tax Accounting • Ontario Mortgage Broker's Association • National Association of Neuro Linguistic Programmers • BSFF and EFT Advanced Certified • TAT and EmoTrance Certified Trainer • Napoleon Hill Academy Course • Capital Research Financial Coordinator Course • Learning Strategies Photo Reading Course • John Bryce – Big Data, Hadoop, RStudio Course

🔥 Helped more than 50+ businesses turn their ideas into lucrative products: • A book-writing platform with 100k users • A platform used to evaluate teachers for the US government • An open-source platform for building chatbots with 9,5K stars on GitHub • A Trello competitor with a 20.000 user-base • A tool to automate transcriptions within a corporation with 20,000 consultants • A visualization tool for a furniture production corporation etc. Specialization: • Web Development • Mobile Development • Dedicated Development Team • Progressive Web Apps • Cloud App Development • Machine Learning & AI • Chatbots • Internet of Things Tech Stack: Node.js, Nest.js, Next.js, React, TypeScript, Elixir, Vue.js, Express.js, Fastify, Angular, Svelte.js, Meteor (legacy), Aurelia (legacy), PhoneGap (legacy), Flutter, React Native, Elixir, Rust, MongoDB, MySQL, REST API, GraphQL, PayPal API, Braintree API, Stripe API, Elasticsearch Industries: 🎓 Education 💰 Finance and Banking 🏥 Healthcare 🤝 Nonprofit 🧑🏻‍💻 e-Learning 📊 LMS 📦 Logistics 🏡 Real Estate 🛒 Retail 🌱 Agriculture 👔 🎓Employee Training ⭐Working 8 years as a Lead Developer at Keenethics and having over 15 years of experience as a Full-Stack Developer, I'm always aware of the latest development trends and top advantageous solutions for your project. I deliver complex web and mobile apps from scratch. You're one click away from making a software solution for your business, I will be happy to provide you a technical consultation and estimate the time needed to make your project top-notch. Press the "Invite" button at the top of my profile, and let's chat🚀

⭐️ Top Rated - Top 10% of talent on Upwork 🕒 500+ hours on Upwork ✅ 6+ years of experience ✅ 16+ projects delivered I have worked on various projects based on Microservice Architecture following an event-driven approach/architecture, implemented using different design patterns i.e. Singleton, Factory, CQRS, Event Sourcing, and Saga. I have 6+ years of working experience with Java and 3 with Spring Boot. Work on integrating QuickBooks, Stripe, Chase Orbital, Oracle NetSuite, and many more third-party integrations. As I worked heavily on integrating CRM, ERP, and POS systems with 3rd party APIs and enabling them to exchange data with each other using REST APIs and GraphQL ****************************** REASONS TO CHOOSE ME *********************************** ✅ Prioritize meeting deadlines with the highest regard. ✅ Work collaboratively, demonstrating exceptional communication skills. ✅ Advocate for strong Test Driven Development practices. ✅ Possess the ability to independently generate solutions without the need for highly detailed user stories. I can readily devise and model multiple solutions based on the presented problem, allowing for informed decision-making. ✅ Display enthusiasm for acquiring any necessary knowledge essential for project success. As a quick learner, I am committed to completing tasks promptly. ✅ Maintain intellectual honesty; I will only undertake tasks that align with my capabilities. * ************************** SOME TECHNOLOGIES I MASTER ******************************* ✅ Java 8-11 ✅ Spring Webflux ✅ Spring Cloud ✅ Spring Security ✅ GraphQL ✅ Docker ✅ AWS ✅ RabbitMQ ✅ Kafka ✅ Jenkins ✅ Maven ✅ Gradle *************************** TECHNICAL COMPETENCIES ******************************* • Java Tech-stack: Spring Boot, Hibernate, JPA, Spring Cloud, Quartz, • Language known: Java, VueJs, and Javascript • Database Hands-on: MySQL, PostgreSQL, MongoDB, Elasticsearch, AWS RDS, Cassandra • Messaging Frameworks: Apache Kafka, AWS ActiveMQ, AWS SNS & SQS • DevOps: AWS EC2, S3, GCP • Project management: Git, Aws CodeCommit, Bitbucket, Jira, Trello, Asana • BPMN Tools: Flowable *************************** PROFILE SUMMARY ******************************* • Hands-on experience on Spring Boot-based microservices, AWS Services e.g. Ec2, S3, SNS, SQN • Handled structured, semi-structured, and unstructured data • Experience in VueJs and Qusar for Frontend development • Strong Code Reviews in Spring Boot-based microservices, testing with Junit, Mockito • Domain: Digital Freight Forwarding System and Fintech Invite me and let's build the greatest software products together!! ------------------------------------------ The keywords to find me: Spring Boot Developer, Java Developer, Spring, JPA, Microservices. Fintech, Monolithic Full Stack. Backend Developer, API Integrations, 3rd party API Integration

Building Robust, Secure Web and Mobile Products - Technical Partner / Full-Cycle Team ברוך השם I observe Shabbat (offline Fri sunset - Sat night) and plan timelines and communication accordingly. I build scalable, user-centric digital products for startups, SMBs, and organizations that care about reliability, privacy, and long-term support. I frequently work with US- and Israel-based founders, and I support Jewish-led businesses and Jewish community organizations where trust, discretion, and predictable delivery matter. Expertise - Frontend: React, Next.js, Vue, Angular - Backend/API: Python (Django, FastAPI), Node.js (NestJS, Express), PHP (Laravel) - Mobile: Flutter, React Native - Database/Cloud: PostgreSQL, MongoDB, Firebase, AWS, Docker, CI/CD - Integrations: REST, GraphQL, Stripe/payment flows, subscriptions, CRM, automation, AI features Why clients hire me - Full-cycle delivery - from discovery and UX/UI to deployment and maintenance - Security-first approach - HIPAA/GDPR-ready practices when needed - Clear milestones and transparent reporting (fixed price or T&M) - Proven track record - 150+ projects across fintech, healthcare, logistics, marketplaces, and membership platforms Message me with your product, current stage, and target timeline - I’ll reply with a practical plan and next steps.