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$25/hr
100%
Job Success
$100K+ earned
Available now
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𝐌𝐨𝐬𝐭 𝐝𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫𝐬 𝐛𝐮𝐢𝐥𝐝 𝐰𝐡𝐚𝐭 𝐲𝐨𝐮 𝐚𝐬𝐤. 𝐈 𝐛𝐮𝐢𝐥𝐝 𝐰𝐡𝐚𝐭 𝐲𝐨𝐮 𝐚𝐜𝐭𝐮𝐚𝐥𝐥𝐲 𝐧𝐞𝐞𝐝.
I specialize in AI Integrations, voice AI systems, RAG pipelines, and AI Agent development and 𝐎𝐩𝐞𝐧𝐂𝐥𝐚𝐰, for startups and businesses ready to automate the work that's slowing them down.
— WHAT I'VE SHIPPED IN PRODUCTION —
✅ Voice AI agent that replaced manual patient intake — zero staff needed for initial screening healthcare - (TopHealth AI),
✅ ML-core AI product — end-to-end, from model to production - (Akki.ai)
✅ End-to-end taxi booking platform live, scaled, real users - (TasleemTaxi),
✅ Published Jira Forge app on Atlassian Marketplace went through full review - (AgilePulse)
✅ Retail POS system deployed across UAE locations, handles real transactions daily - (Syspos)
— MY STACK —
📌 Voice AI: Vapi, ElevenLabs, Retell
📌 AI/ML: LangChain, LangGraph, RAG, OpenAI, OpenClaw, Anthropic/Claude Code
📌 Backend: FastAPI, Node.js, Python
📌 Automation: n8n, custom agentic orchestration and Twilio
📌 Frontend: Next.js, React
📌 Platforms: Jira Forge (Atlassian Marketplace)
📌AI Integration Architecture: connecting LLMs, Voice AI (Vapi/ElevenLabs), and automation.
Most of my work right now is AI voice agents. Healthcare, fintech calls, legal intake, real estate, customer support, I've built for all of them. One of my favorites was a Vapi AI receptionist for a clinic chain in Florida. Patients call, it answers, books the appointment, done. No staff needed at 2am. I also built an outbound voice agent for a taxi company in Oman that takes booking calls in plain natural language. These handle real calls from real customers every day, which is a very different thing from a demo that works once in a sandbox.
𝐈 𝐝𝐨𝐧'𝐭 𝐰𝐚𝐢𝐭 𝐟𝐨𝐫 𝐲𝐨𝐮 𝐭𝐨 𝐡𝐚𝐧𝐝 𝐦𝐞 𝐚 𝐬𝐩𝐞𝐜 𝐬𝐡𝐞𝐞𝐭. 𝐈 𝐫𝐞𝐬𝐞𝐚𝐫𝐜𝐡 𝐲𝐨𝐮𝐫 𝐩𝐫𝐨𝐛𝐥𝐞𝐦, 𝐦𝐚𝐩 𝐲𝐨𝐮𝐫 𝐰𝐨𝐫𝐤𝐟𝐥𝐨𝐰, 𝐚𝐧𝐝 𝐩𝐫𝐨𝐩𝐨𝐬𝐞 𝐭𝐡𝐞 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧 𝐀𝐍𝐃 𝐭𝐡𝐞𝐧 𝐛𝐮𝐢𝐥𝐝 𝐢𝐭.
I’ve been working as AI Agent developer done 100s of AI Integrations for the last 5+ years, and I can confidently say I’ve done it all.
5000+ hours worked
Helped clients to grow financially $$$.
$100k+ earned
I also do a lot of agentic work with Claude API and MCP. If you don't know MCP (Model Context Protocol), it's basically how you give AI agents real tools and a shared brain instead of stuffing everything into one giant prompt. I've built custom MCP servers and set up orchestration where multiple agents pass work between each other and actually finish tasks on their own. Some of this runs through n8n or Make, some is pure code. Depends what the project needs.
— THE DIFFERENCE —
𝗘𝘃𝗲𝗿𝘆 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝘄𝗮𝗻𝘁𝘀 𝗔𝗜, 𝗯𝘂𝘁 𝗳𝗲𝘄 𝗸𝗻𝗼𝘄 𝘄𝗵𝗲𝗿𝗲 𝘁𝗼 𝘀𝘁𝗮𝗿𝘁. 𝗜 𝘁𝘂𝗿𝗻 𝗔𝗜 𝗼𝘃𝗲𝗿𝘄𝗵𝗲𝗹𝗺 𝗶𝗻𝘁𝗼 𝗮𝗰𝘁𝗶𝗼𝗻𝗮𝗯𝗹𝗲 𝘀𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗲𝘀—𝗮𝗻𝗱 𝗵𝗮𝘃𝗲 𝗱𝗼𝗻𝗲 𝗶𝘁 𝗳𝗼𝗿 𝟭𝟬+ 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀.
I've strong experience with AI Integrations and building AI Agents using N8N, Vapi and other tools. Moreover, I've deep expertise in Anthropic Claude Implementations and Claude Integrations for multiple industries like healthcare, health-tech, Real estate, and financial sector.
Most AI agent developers will leave you in dark when something stuck, I'll stay with you until it's done, and I never leave you with something you can't own and scale.
𝐃𝐞𝐦𝐨𝐬 𝐚𝐫𝐞 𝐞𝐚𝐬𝐲. 𝐏𝐫𝐨𝐝𝐮𝐜𝐭𝐢𝐨𝐧 𝐢𝐬 𝐰𝐡𝐞𝐫𝐞 𝐭𝐡𝐢𝐧𝐠𝐬 𝐛𝐫𝐞𝐚𝐤. 𝐀𝐬 𝐚𝐧 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 𝐬𝐩𝐞𝐜𝐢𝐚𝐥𝐢𝐳𝐢𝐧𝐠 𝐢𝐧 𝐫𝐞𝐚𝐥-𝐰𝐨𝐫𝐥𝐝 𝐀𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧𝐬, 𝐈 𝐟𝐢𝐱 𝐭𝐡𝐚𝐭.
𝐋𝐞𝐭'𝐬 𝐠𝐞𝐭 𝐲𝐨𝐮𝐫 𝐀𝐈 𝐨𝐮𝐭 𝐨𝐟 𝐭𝐡𝐞 𝐬𝐚𝐧𝐝𝐛𝐨𝐱.
$30/hr
100%
Job Success
$400K+ earned
Available now
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AI-Powered Development Strategies to Speed Up Your Work
Top 1% freelancer - 12+ Years | 14,000+ Upwork hours work | $400K+ earnings | 150+ Jobs
I build full-stack web applications with React, Next.js + Tailwind + Node.js, Python — and increasingly, I integrate AI features directly into them (LLM-powered chat, RAG search, automation workflows) rather than bolting AI on as an afterthought.
LLM Agents & AI Chatbots · RAG & Vector Search · NLP & Deep Learning · Generative AI · AWS & Production
Do you want someone who is an expert in React, Nextjs, UI/UX, Tailwind CSS, Node.js, Python, Django, AWS expert for your next big project?
WHAT I DO
- Full-stack web apps: Next.js, React, Node.js/Express, Python/FastAPI, Django, TypeScript, Tailwind CSS
- AI-powered features: OpenAI/LLM integration, RAG & vector search, AI chatbots and agents
- Backend & APIs: REST, GraphQL, MongoDB, PostgreSQL, Supabase Expert, MySql
- Cloud & deployment: AWS (Lambda, S3, RDS), Docker, CI/CD
- Search: Algolia, Firebase Expert
- API Development & Integration
- Headless CMS - Strapi, Contentfull
HOW I WORK
1. Understand your goals and constraints before writing a line of code
2. Propose a clear technical plan — no surprises mid-project
3. Build, test, and ship in small, reviewable increments
4. Stay available post-launch for fixes and iteration
PYTHON FRAMEWORK
- Django, Flask, FastAPI (For secure and scalable back-end systems)
- AI/ML Automation:
- TensorFlow, PyTorch, scikit-learn (𝑀𝑎𝑐ℎ𝑖𝑛𝑒 𝑙𝑒𝑎𝑟𝑛𝑖𝑛𝑔 𝑚𝑜𝑑𝑒𝑙 𝑖𝑛𝑡𝑒𝑔𝑟𝑎𝑡𝑖𝑜𝑛)
DATABASES & CLOUD:
- Relational: MySQL, PostgreSQL, SQLite
- Non-relational: MongoDB, Elastic-search, Redis
- AWS Services: Lambda, Cognito, RDS, DynamoDB, S3, API Gateway, CloudFront, and more
DevOps & Automation
- AWS: EC2, S3, RDS, Lambda, ECS, CloudFront, Cognito, Bedrock
- Docker, Kubernetes, Terraform, GitHub Actions
- Cloud migrations, serverless architectures, infrastructure setup
- Vercel, Netlify, Railway deployments
- Security hardening, performance monitoring, and production support
- CI/CD Pipelines: GitLab CI, Jenkins
- Automation tools: Webpack, Babel, Vite
AI INTEGRATION & AUTOMATION
- OpenAI GPT-4o and Claude (Anthropic) API integrations into your products
- RAG pipeline development using LangChain, pgvector, Pinecone, and FAISS
- AI chatbots and conversational interfaces added to existing SaaS products
- Python/FastAPI or Django backends powering AI microservices and LLM workflows
- MCP server integrations and custom agent workflows
3rd Party Integrations
- Payment Gateways: Stripe, PayPal, Square, Binance API, Telegram API, OpenAI API, Stripe API, and more.
- Analytics: Google Analytics, Mixpanel
- Authentication: Auth0, Firebase, Okta
Fluent in async and real-time communication (Slack, Discord, Teams — your choice).
Comfortable with agile tools (GitHub, Jira, ClickUp, Notion, BitBucket).
Clean & High quality best Structure Code
Meeting deadlines & Daily Updates & Scrum calls
Together, let's create a great product.
💌 Feel free to invite me to your job post or book a consultation today!
Let's achieve your business 🎯 goals together.
Waiting to hear you! Cheers 🍻. 😀
$22/hr
97%
Job Success
$50K+ earned
Available now
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Hi! My name is Tan, and I'm from Ho Chi Minh City, Vietnam. I have worked as a full-stack software engineer for a variety of companies over the past 10+ years, ranging from start-ups to eight-figure corporations. I have extensive knowledge of cloud computing, front-end and back-end development, etc.
I've worked with businesses in a wide range of industries, including food and beverages, working platforms, finance, digital products, software, therapy, education, and many more. I helped two Australian firms launch from the ground up and generate income in 2024 and 2025. I can assist you whether you require continuous sales, steady website traffic, or high-quality leads.
I specialize in creating enterprise-grade, clean, and maintainable applications using the MERN/PERN stack (PostgreSQL/MongoDB, Express, React, and Node.js). The services I offer are
- Building multi-tenant solutions from MVP to Version 2.0 through scalable SaaS development.
- Performance optimization includes database indexing, Core Web Vitals expertise, and advanced on-page SEO for SPAs.
- API & System Integration: Using custom REST/GraphQL APIs, Stripe, or Salesforce to link your ecosystem.
- Cloud infrastructure: establishing affordable AWS/Azure hosting and automated CI/CD pipelines.
- Increase Purchases: By improving state management and user interface responsiveness, I was able to design checkout sequences that decreased cart abandonment by 18%.
- Generate More Leads: I build high-converting landing pages integrated with CRM workflows that capture and qualify leads automatically.
- Increase Brand Awareness: By implementing Server-Side Rendering (SSR) and Static Generation (SSG) via Next.js, I ensure your platform is lightning-fast and indexed perfectly by search engines.
Throughout my 10+ years of expertise, I have worked with both well-established FinTech companies and venture-backed startups. I approach every endeavor with a data-driven mindset
- Statistical Gain: By switching from manually handled VPS services to an automated CI/CD workflow and optimizing building and delivery time, a client's server expenses were reduced by 35%, or more than $600 per month.
- Scale: Using a Docker container approach, a database migration was successfully handled, database backups were planned with no downtime, and moving to a different clouding service was simple.
- Industry Versatility: extensive knowledge of banking, education technology, and fintech.
I'm proficient in the following languages:
- PHP
- Python
- TypeScript
- JavaScript
I'm proficient using the following tools:
- MySQL
- React, React Native
- Next.js
- Tailwind
- Material UI
- Supabase
- Firebase
- Postgres
- Sanity IO
- Vanilla CSS
- Bootstrap
- And many more
Thanks for taking the time to read this. If you're interested in working together, feel free to send me a message by pressing the button in the top right corner. Looking forward to connecting!
$20/hr
100%
Job Success
$40K+ earned
Start of list.
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👉 Key Highlights
💎 10+ years of hands-on experience in full-stack development
🚀 91+ jobs completed successfully on Upwork
🕰 2,766+ hours worked with consistent client satisfaction
⭐ Top-rated profile with 5-star feedback from clients worldwide
About Me
------------
With over a decade of experience as a software and web developer, I’ve worked across a wide range of projects, startups, growing businesses, and enterprise-level systems. I’m quick to understand new requirements, adapt to different workflows, and deliver reliable solutions without unnecessary complexity.
What sets me apart is a strong balance of technical expertise, clear communication, and project ownership. I focus on writing clean, scalable code and delivering results on time while keeping clients informed at every step.
Technical Expertise
------------------------
✔️ Back-End Development
Python, Django, Laravel, Livewire, Node.js, NestJS, Express.js, Mongoose, Meteor.js
✔️ Front-End Development
React, Vue.js, Nuxt.js, Next.js, Redux, TypeScript, Vue Router
✔️ Databases
MySQL, MongoDB, PostgreSQL, Firebase
✔️ CSS & UI Frameworks
Tailwind CSS, Bootstrap, Material UI (MUI), Ant Design, Materialize UI
✔️ APIs & Integrations
Stripe, PayPal, Google APIs, Facebook APIs, Firebase, AWS, Sentry
✔️ Tools & Project Management
Jira, Trello, VS Code
✔️ Version Control
GitHub, GitLab, Bitbucket
Automation & Workflow Optimization
--------------------------------------------
I help businesses save time and reduce manual work by building smart automations.
From syncing data between apps to automating repetitive processes and building custom integrations, I design workflows that are stable, efficient, and easy to scale. The goal is simple: let systems do the work, so you can focus on growth.
Keywords
--------------
PHP Developer, Laravel Developer, WordPress, MySQL, Senior PHP Developer, React Developer, React.js, Vue.js, Node.js, Full Stack Developer, MongoDB, Backend Developer, Frontend Developer, Tailwind CSS, Next.js, Nuxt.js, Nuxt 3, Vue Nuxt, React Redux, API Integration, Automation Expert, Filament PHP
Thanks for visiting my profile.
If you’re looking for a dependable developer who understands both technology and business needs, feel free to reach out happy to discuss your project. 😊
Associated with
Finalrope Soft Solutions Private Limited
$100K+
earned
$25/hr
93%
Job Success
Available now
Offers consultations
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I am Sabyasachi Saha, an AI Agent, Full-Stack AI, Workflow Automation, LLM, and SaaS Developer. I work as an individual consultant and hands-on technical architect, backed by my experience as the CEO and Chief AI Scientist of Techno Exponent.
I have completed my PhD from SSBM Geneva with a research focus in Generative AI and Sentiment Analysis. With 20+ years of experience in the IT industry, I help startups, enterprises, and growing businesses build intelligent, scalable, and automation-driven digital products.
My major focus is on AI agents, LLM-based applications, workflow automation, SaaS platforms, full-stack application development, data engineering, and analytics. I combine strong technical knowledge with business understanding, so I can support projects from idea validation, architecture planning, development, integration, automation, and long-term scalability.
I founded Techno Exponent in 2011, and since then, we have helped global businesses with digital transformation, AI solutions, automation platforms, SaaS products, enterprise applications, web/mobile apps, and complete IT solutions. As an individual professional on Upwork, I personally bring leadership experience, AI architecture knowledge, hands-on development understanding, and product-focused thinking to every project.
I can help you with:
✅ AI Agent Development
✅ LLM-Based Applications
✅ ChatGPT / OpenAI / Claude / Gemini Integration
✅ RAG Systems and Vector Databases
✅ AI Chatbots and Voice Bots
✅ Workflow Automation
✅ Business Process Automation
✅ SaaS Product Development
✅ Full-Stack Web Application Development
✅ Data Engineering and Data Analytics
✅ AI-Powered Dashboards and Reporting Systems
✅ CRM, ERP, and Third-Party API Integrations
✅ MVP Development and Product Modernization
I have worked across multiple industries, including healthcare, education, e-commerce, real estate, fintech, logistics, transportation, recruitment, food delivery, dating platforms, blockchain, and enterprise automation. My experience includes AI chatbots, AI calling bots, CV screening platforms, AI interview systems, RAG-based knowledge assistants, analytics dashboards, CRM automation systems, workflow automation platforms, SaaS products, and scalable full-stack applications.
My technical expertise includes:
✅ AI/ML: Generative AI, NLP, LLMs, AI Agents, RAG Systems, LangChain, LlamaIndex, Hugging Face, OpenAI, Claude, Gemini, Computer Vision, Sentiment Analysis, Predictive Analytics
✅ Automation: Workflow Automation, Business Process Automation, AI-Powered Automation, n8n, Make, Zapier, CRM Automation, Email Automation, Lead Automation, API Automation, WhatsApp Automation, Voice Bot Automation
✅ Data: Data Engineering, ETL Pipelines, Data Analytics, Business Intelligence, AI-Powered Dashboards, Reporting Systems, Data Visualization, Data Warehousing, Real-Time Data Processing
✅ SaaS: SaaS Product Development, Multi-Tenant Architecture, Subscription Models, Role-Based Access Control, Admin Panels, User Dashboards, API-First Architecture, Scalable Cloud-Based Platforms
✅ Full-Stack Development: Python, FastAPI, Node.js, Express.js, Django, Flask, Java, PHP, Laravel, React.js, Next.js, Angular, Vue.js, TypeScript, JavaScript
✅ Databases & Cloud: PostgreSQL, MySQL, MongoDB, Firebase, Redis, Vector Databases, Pinecone, Chroma, Weaviate, AWS, GCP, Azure, Docker, Kubernetes, CI/CD
✅ Integrations: Stripe, PayPal, Twilio, WhatsApp API, SendGrid, Google APIs, CRM/ERP Integrations, Payment Gateways, Custom API Development
Achievements:
🏆 Awarded “Most Influential Young Leaders 2021-22” by AsiaOne and Economic Times
🏆 Techno Exponent recognized as Times Leading IT Company 2022
🏆 Techno Exponent recognized as Most Customer-Centric IT Company 2022
🏆 Techno Exponent recognized as Leading App Development Company of the Year 2023
When working with me, you get more than a developer. You get a technical partner who understands business goals, product architecture, AI implementation, automation strategy, scalability, and execution.
My goal is simple: to help businesses turn ideas into intelligent, scalable, and revenue-focused digital products.
If you are looking for someone who understands AI, automation, SaaS, full-stack development, data, and business execution, I would be happy to discuss your project and help you build the right solution.
Associated with
✔️T- WEB EXPONENT SERVICES Pvt. Ltd. - CMMI Level 5 Company that served NASA, Disney, Red Bull, Amazon, The Wall Street Jounral, etc.
$20/hr
100%
Job Success
$20K+ earned
Offers consultations
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Seeking an Expert Flutter Developer for Stunning, High-Performance Apps? Look No Further!
✨ 𝗣𝗿𝗼𝘃𝗲𝗻 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲:
With my extensive experience in Flutter app development, I have a proven track record of delivering exceptional results. I’ve developed numerous applications for international clients that have received rave reviews and achieved outstanding success in their markets.
🎯 𝗦𝗽𝗲𝗰𝗶𝗮𝗹𝗶𝘇𝗲𝗱 𝗦𝗸𝗶𝗹𝗹𝘀:
• Visual Design: Crafting visually captivating and highly functional applications.
• User Experience: Ensuring seamless, engaging user experiences.
• Technical Proficiency: Deep knowledge of:
Flutter,
Firebase,
Real-Time Communication like Chat
APIs,
Payment Gateways, In-App Purchases and Subscriptions.
MySQL,
Bug Fixing,
CI/CD pipelines with Codemagic / Github Actions.
🏆 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗢𝗳𝗳𝗲𝗿𝗲𝗱:
Whether you have a groundbreaking app concept that needs to be built from scratch or an existing project requiring refinement, I am here to bring your vision to life. I thrive on challenges that push boundaries and am passionate about transforming ideas into reality.
🌟 𝗖𝗼𝗺𝗺𝗶𝘁𝗺𝗲𝗻𝘁 𝘁𝗼 𝗘𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝗰𝗲:
By choosing to work with me, you can expect:
• Dedication: Utmost attention to detail and effective communication.
• Timeliness: Projects delivered on time, exceeding client expectations.
• Client Satisfaction: Going above and beyond to ensure your app exceeds your vision.
✅ 𝗟𝗲𝘁’𝘀 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗲:
Let’s create something extraordinary together! Reach out to discuss your project requirements, and together, we’ll bring your app idea to life. Your success is my priority.
$60/hr
100%
Job Success
$500K+ earned
Offers consultations
Start of list.
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🌟 Welcome to My Profile! 🌟
👋 Hi there! I'm Shiven Juneja, a tech enthusiast and seasoned full-stack developer with a strong focus on MERN Stack and mobile app development using React Native. With over 7 years of experience, I've helped startups and established businesses from the US, Canada, and Singapore turn their bold ideas into successful software solutions.
🔍 Professional Role:
🚀 Tech Lead, reporting directly to C-level executives.
🤝 Collaborator with QA, UI/UX, and Product Management teams to streamline development processes.
🛠 Methodology:
🔄 Agile advocate, managing projects with weekly sprints, and regular stand-ups to maximize productivity and transparency.
🎯 Notable Collaborations:
Genius Plaza Inc., Miami, US – Frontend Lead
Ventive, Idaho, US – Frontend Developer
Equity Up, New York, US – Full Stack Developer
KidAdvisor, Montreal, Canada – Frontend Lead, Mobile App Developer
Penny Profit, Utah, US – Frontend Developer
BatchLeads, US - Senior Mobile App Developer
Private ID - Frontend Lead / Pre Sales Engineer
UNIDO (United Nations Industrial Development Organization) - Technical Consultant
SEforALL - Consultant
🌐 Technical Skills:
🖥️ Front-end:
React.js, Next.js, Gatsby
UI Libraries: Material-UI, Bootstrap, Semantic UI, Chakra UI
CSS Frameworks: Styled Components, Emotion, SCSS, Tailwind CSS
State Management: Redux, Redux Thunks, Redux Toolkit, Context API
React Native for mobile app development: iOS and Android platforms, React Native Navigation, Expo, React Native CLI
React Native APIs and Libraries: AsyncStorage, React Native Maps, React Native Camera
Performance Optimization: Code Splitting, Lazy Loading, Efficient Data Fetching
Forms and Validation: React Hook Form
Error Handling: Sentry
Payment Solutions: Stripe, PayPal, RazorPay
Social Media Integration: LinkedIn, Facebook, Google APIs
Localization: CrowdIn
⚙️ Back-end:
Node.js Frameworks: Express.js, Koa.js
ORM/ODM: Prisma, Mongoose
Databases: PostgreSQL, MongoDB, MySQL
API Development: RESTful Services, Swagger Documentation
🏢 Industry Expertise:
🚌 Transportation & Logistics
🏥 Healthcare
🎓 Education
🏘️ Real Estate
💰 Fintech
🛒 E-Commerce
and many more...
🤝 Collaboration Process:
🔒 Starting with a Non-Disclosure Agreement for security.
🗣️ In-depth discussion to ensure a good fit.
🚀 Strategic planning for impeccable project execution.
🔗 Technologies and Tools:
Full Stack Development | Node.js | React | Angular | Next.js | Express | NestJS | JavaScript | TypeScript | Microservices Architecture | MongoDB | PostgreSQL | AWS Ecosystem | Redis | WebSockets | GraphQL | Serverless Architecture | DevOps Tools | Testing Frameworks | and much more.
🌍 Keywords:
MEAN Stack, MERN Stack, JavaScript, Node.js, React.js, AngularJS, Express.js, Full Stack Developer, Web Development, Software Engineering, Agile Development, React Native, Mobile App Development, iOS Development, Android Development, Cross-platform Development, UI/UX Design, API Integration, Cloud Services, Performance Optimization, Security Best Practices, Continuous Integration, Continuous Deployment, Version Control, Scalable Architecture.
🌟 Looking forward to transforming your visionary ideas into reality! Let's create something amazing together!
Best regards,
Shiven
🌐 Full Stack Developer | Node | React | MERN | MEAN | Angular | Next | Express | Nest | JavaScript | TypeScript | Microservices | Mongo | PostgreSQL | AWS | Redis | WebSocket | Onespan | GraphQL | Lambda | DynamoDB | Serverless | Git | Jira | Docker | S3 | AWS SNS | AWS SES | Email | Mocha | Chai | Jest | Twilio | Sequelize | REST Api | Strapi.io
Associated with
KeyMouse IT Services
$99/hr
100%
Job Success
$200K+ earned
Offers consultations
Start of list.
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SOLUTIONS
—Expert Level Development—
($99’hr – if full-time engagement)
🚀 Web applications, SaaS
🚀 Chrome extensions | LinkedIn - Instagram - Facebook automations
🚀 Mobile apps (Ionic)
🚀 Desktop apps (Electron)
🚀 ASAP quick-fixes ($300’hr)
🚀 AI integration for new and existing apps
🚀 App architecture design, data model design
🚀 User Experience and User Story design
—Analysis & Research—
($200’hr)
🚀 Codebase audit, development process review
🚀 Reverse engineering: 3rd-party code, endpoints, apps, etc
🚀 Legacy \ 3rd-party code-related research
—Management & Consulting—
($300’hr)
🚀 Fractional CTO
🚀 Project roadmapping
🚀 Project steering \ Team oversight
🚀 Project management
🚀 Software Best practices consulting
TESTIMONIALS
✅ “Artem met all our expectations… and then some!
He’s a true professional who works independently and delivers actual progress.”
✅ "It was a great experience, working with Artem! He always thought one step ahead and anticipated possible pitfalls. ... the project result was well beyond the expectations. Absolutely looooving it!"
✅ "He's solutions-oriented and a creative thinker who works well with technical challenges. He takes the time to understand the problem in non-technical language and delivers a sophisticated solution."
✅ "it was great working with Artem. He managed to meet our expectations and produced high quality work in a very fast way"
✅ "Highly skilled professional! Great quality application delivered. Was also a lot of fun to work with him. 5 stars!"
✅ "An especially bright engineer with a friendly personality and communication style. He took the time to understand the project fully before diving-in. Highly recommended."
✅ "Perfect execution, great documented code and support"
SPECIALIZATIONS
—High-Complexity Browser Extensions—
An Expert in enterprise-grade Chrome Extensions and browser automation
I implement sophisticated solutions like Hybrid Architecture and Network Interception - where standard web development fails
—Principal Full-Stack Engineering—
Elite-level TypeScript, React, Node.js and Rust
I build scalable, production-grade applications, that don't break under pressure
—Enterprise AI & LLM Integration—
From autonomous agent workflows (n8n) and secure OpenAI/Anthropic integrations to custom RAG (Retrieval-Augmented Generation) pipelines and agent orchestration — I build AI into your core product
—Technical Audits & Rescue—
I thrive in "emergency room" projects
I audit the mess, identify what’s salvageable, then stabilize the situation by patching or rewriting the core
ASSETS
💎 Expertise: 12+ years in software: Senior Engineer, Tech Lead and CTO roles
💎 Business Acumen: Highly skilled at bridging the gap between Business and Engineering: translating stake holder needs into architectures and solutions
💎 Meticulous Approach: In-depth business requirements analysis; system architecture design; carefully crafted user stories
💎 Optimal Communication: Prompt replies; concise; down to business; always in touch
💎 Top Product Quality: Top-notch code and documentation
💎 Assured Reliability: Post sign-off warranty & lifetime support
💎 Keen Eye: UX\UI analysis & Expert counsel
💎 Broad Knowledge: Software Engineering; Project Management; Team Leadership; CTO; Budgeting & Finance
💎 Vast Experience: Start-ups; Large multinationals; Self-employment; Private consultancy firm
TECHNOLOGY STACK
(non-exhaustive)
🛠️ Chrome browser extensions: Manifest V3
🛠️ Front-end: TypeScript, React, NextJS, Ionic, TailwindCSS
🛠️ Back-end: Rust, NodeJS, REST APIs, NestJS, Fastify
🛠️ Database: PostgreSQL, MongoDB, Firebase, Supabase, Airtable
🛠️ Cloud: AWS, GCP, Azure, Vercel, Serverless framework
🛠️ Mobile app with Ionic framework and Capacitor
🛠️ Desktop app with Electron framework
🛠️ AI: OpenAI/Claude/DeepSeek APIs, RAG Architecture, Vector DBs, no-code integrations (n8n).
🛠️ Full test coverage and zero regression guarantee:
. Test-Driven Development (TDD)
. Property-based testing
. Behaviour Driven Development (BDD) \ ATDD with Gherkin + Cucumber
. End-2-End testing with Playwright or Gauge + Taiko
💾 Functional programming: declarative code, pure functions, immutability, function composition
💾 Highly isolated, modular, reusable and self-documenting code
💾 Documentation: project specification, PRDs, codebase audit, workflow review
LET’S TALK
— If you need a Lead Engineer who takes full ownership and executes with surgical precision
$22/hr
100%
Job Success
$40K+ earned
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End of list.
🖐️ Hello! I’m a seasoned Web Developer & Designer with over 7+ years of experience, specializing in WordPress and WooCommerce customization, as well as custom plugin development. If you’re looking for a professional touch on your web projects, invite me or save my profile for future reference. Let’s discuss how I can help elevate your project!
Why Work With Me?
My Expertise Includes:
Website Makeovers, Redesigns & Migrations: Refresh your site’s look and functionality.
New Website Builds: From scratch, existing themes, or premium customizations.
SEO & Social Media Optimization: Boost visibility and engagement.
Responsive & Mobile-Friendly Designs: Ensuring your site looks great on all devices.
Page Speed Optimization: Improve loading times with GTmetrix and Google Lighthouse enhancements.
Conversion Tracking: Monitor clicks, form submissions, and more.
3rd Party Integrations: Smooth setup for services like MailChimp, Google Analytics, and more.
WordPress Proficiency:
Elementor & Gutenberg Editors: For easy content management.
Theme Customization: Tailoring themes to fit your vision.
Figma/PSD/Sketch to WordPress: Seamless design-to-code conversion.
Troubleshooting & Bug Fixing: Swift resolution of any issues.
Large & Multi-Site Management: Handling complex site structures effortlessly.
Unique Services:
Staging Server Access: Review each update and provide feedback on a live server.
SEO-Friendly Redirects: No penalties or downtime during redesigns and migrations.
What Clients Say: ★★★★★ “Vivek exceeded my expectations, going above and beyond the original scope at no extra charge. Fantastic experience—I’ll definitely work with him again!”
My Approach:
Once we connect, I’ll provide clear, actionable options tailored to your project needs. I’m dedicated to timely, effective communication that adds value without wasting your time.
WordPress Plugins I Work With:
Elementor, Advanced Custom Fields, WooCommerce, W3 Total Cache, WP Rocket, Updraft, Jetpack, Wordfence, Gravity Forms, and many more.
Additional Skills:
Frontend: HTML5, CSS3, Bootstrap 4, jQuery, Sass/Less.
Backend: PHP, MySQL, JavaScript ES6, Node.js.
Tools & Platforms: Git/GitHub, cPanel, WHM, Netlify, Webpack, Gulp, React, Meteor.
Looking forward to collaborating on your next project! 👍
$8/hr
100%
Job Success
$200+ earned
Offers consultations
Start of list.
End of list.
🌟🏆SUMMARY 🏆🌟
✅ 10 Years Of Experience
✅ High-Quality Work
✅ Cost-Efficient Services
✅ Fluent English
✅ Long term working relationship
I am a senior full-stack web developer with a track record of delivering large-scale high-performance products and have professional experience in various technologies of frontend and backend development.
Listed below are my experience and skills:
==========
✅ Front-end: React, Next.js, HTML5, CSS3, JavaScript, TypeScript, Remix, Tailwind CSS.
✅ Back-end: Python, Django, Node.js, Nest.js, Express.js, RESTful APIs, GraphQL, tRPC.
✅ Mobile App: React Native IOS.
✅ Databases: MySQL, PostgreSQL, MongoDB, Supabase.
✅ Cloud & Hosting: AWS (EC2, S3, SES), Firebase.
✅ SEO: Best practices, Performance, Accessibility.
✅ Other Skills: PWA development, responsive UI/UX, web3.js.
🤝 Let's collaborate!
Contact me for a project audit, technical consultation, or to develop a roadmap for your project — whether you need a custom platform, sophisticated enterprise application, or a well-designed website.
Looking forward to a long-term, win-win partnership.
Best Regards
Steve