Building scalable web applications to grow your business ๐ by combining robust backend logic with interactive frontend design. I create systems that run smoothly, secure your data, and provide an effortless user experience.
๐ช Problem-solving approach (Focus on business logic, not just code)
๐ Clean & Scalable Code (Easy to maintain in the future)
โก High Performance (Fast loading & optimized database)
๐ ๏ธ End-to-End Solution (Handling both Server & UI)
๐ค Reliable Communication
What I Can Do and How Fast?
โ SaaS / Web App Development (~2-4 Weeks)
โ Dashboard & Admin Panel (~1-2 Weeks)
โ MVP (Minimum Viable Product) (~2 Weeks)
โ API Development & Integration (~3-7 Days)
โ Landing Page Development (~2-5 Days)
โ Bug Fixing & Optimization (Hours - 2 Days)
โ Database Design & Schema (~2-3 Days)
โ Deployment & Server Setup (~1 Day)
My Tech Stack:
โญ Frontend: React, Next.js, Vue.js, TailwindCSS, TypeScript
โญ Backend: Node.js, Laravel (PHP)
โญ Database: MySQL, PostgreSQL, MongoDB
Feel free to reach out to discuss your project requirements!
๐ KEYWORDS: Full Stack Developer, Web Developer, React Developer, Node.js Developer, Laravel Developer, Vue.js, Next.js, TypeScript, PHP, SaaS Development, Dashboard Application, CRM Development, API Integration, Backend Development, Frontend Development, Database Design, MVP Development, Web Application, Tailwind CSS, Admin Panel, Bug Fixing.
API Integration
JavaScript
React
Node.js
PHP
TypeScript
Tailwind CSS
MySQL
Database Design
HTML5
CSS 3
Website Optimization
SaaS
Laravel
Next.js
David C.
Sens, France
$40/hr
4.9
33 jobs
Still paying for tools that don't talk to each other? I build n8n automation workflows and API integrations that fix that โ cleanly, on infrastructure you own and control. No vendor lock-in, no recurring SaaS fees you can't escape.
Most automation freelancers hand you a Zapier flow and disappear. I deploy self-hosted n8n on your VPS or cloud (Docker, Linux), wire it to your existing stack via REST APIs and webhooks, and leave you with code and infrastructure you fully own. That means no subscription surprises and no single point of failure you can't debug yourself.
What I build for SMBs and SaaS startups:
๐ API & webhook integrations between any two platforms
โ๏ธ Automated workflows that replace manual ops work
๐ฅ๏ธ Self-hosted n8n setups on VPS or cloud (Docker, Linux)
๐ค AI agents and RAG chatbots connected to your live data
๐ CRM, lead gen, and data pipeline automations
๐ Web scraping and data enrichment pipelines
โ 100% Job Success Score across 28 completed projects on Upwork
โ Top Rated freelancer โ $57K+ earned, 11 active client engagements
โ Clients include SaaS startups and SMBs across e-commerce, logistics, real estate, and recruitment
โ Notion Service Specialist certified
Send me a message describing what you're trying to automate. I'll reply within a few hours with a clear scope and whether I'm the right fit.
API Integration
API
API Development
n8n
Automation
AI Agent Development
RESTful API
Zapier
Make.com
Python
Artificial Intelligence
Data Scraping
PostgreSQL
Web Scraping
AI Chatbot
Retrieval Augmented Generation
Data Analysis
Deelaka A.
Sri Jayawardanapura Kotte, Sri Lanka
$35/hr
4.5
11 jobs
Are you losing hours every week to manual tasks, broken integrations, or slow workflows? I build intelligent automation systems powered by Claude AI and Make that handle the work for you, reliably and at scale.
I specialize in combining AI (Claude, OpenAI) with no-code/low-code automation platforms to create workflows that don't just move data, they think. Whether you need an AI agent that reads, summarizes, and acts on incoming data, or a complex multi-system integration, I design and deliver production-ready solutions.
CLAUDE AI AND LLM-POWERED AUTOMATION
Intelligent AI agents integrated into your business workflows
Claude API connected to CRMs, databases, email, and messaging tools
AI document processing, summarization, classification and routing
Custom AI assistants that respond, decide, and trigger actions automatically
MAKE AND WORKFLOW AUTOMATION
Advanced multi-step Make scenarios with webhooks, error handling, and retries
API to Make to Database pipelines
CRM, lead management, and marketing automation
Reduce manual work by 70-90%
API DEVELOPMENT AND INTEGRATION
REST API development in Java and Node.js
Secure OAuth2 and token-based authentication
Third-party integrations including payment gateways, social APIs, and SaaS platforms
Microservices and system-to-system communication
CLOUD AND BACKEND ENGINEERING
Scalable backend services using Java and Spring Boot
AWS deployments including Lambda, EC2, and S3
CI/CD pipelines and production-ready infrastructure
WHY CLIENTS CHOOSE ME
100% Job Success Score
AWS Certified Solutions Architect
Make Certified in Foundation, Basics, and Intermediate
Fast response under 4 hours and clear communication
Clean, maintainable code, not quick hacks
Long-term support and continuous improvements
I don't just connect apps. I build systems that think, adapt, and scale with your business. Let's talk about what you're trying to automate.
API Integration
Make.com
Java
RESTful Architecture
Web Application
Automation
Amazon Web Services
React
Web Development
Hosting Setup
Blaine A.
Tacoma, Washington
$135/hr
5.0
15 jobs
I'm a senior software engineer with extensive experience building scalable APIs, cloud platforms, and mobile applications used by billions of users. Iโve worked on production systems at companies like Meta Platforms and T-Mobile, and I bring that same engineering discipline and reliability to every client project.
Throughout my career Iโve designed and built backend systems, microservices, and mobile applications that power real products. I specialize in building software that is not only functional but also scalable, maintainable, and ready for long-term growth.
In addition to enterprise experience, Iโve also worked extensively with startups and small teams, helping them move quickly from concept to working software. I understand the balance between moving fast and building systems that wonโt break as your product grows.
Whether you're launching a new product, building an MVP, integrating APIs, or improving an existing platform, I focus on delivering solutions that are reliable, efficient, and designed with best engineering practices.
What I Can Help You Build
Backend & API Development
โข REST APIs and microservices
โข Backend platforms and system architecture
โข Secure authentication systems (OAuth, Cognito, etc.)
โข Third-party API integrations
โข High-performance backend services
Cloud & Infrastructure
โข AWS architecture and deployment
โข Serverless systems (Lambda, event-driven systems)
โข Scalable cloud platforms
โข Database design and optimization
โข DevOps and deployment pipelines
Mobile Applications
โข Cross-platform mobile apps using Flutter
โข API integration for mobile apps
โข Authentication, file uploads, and backend communication
โข Performance optimization and debugging
Technologies I Work With
Python โข C# โข Flutter โข REST APIs โข AWS โข Serverless โข PostgreSQL โข MongoDB โข Microservices โข Cloud Architecture โข Docker โข Event-Driven Systems
Recent Types of Projects
โข Designing backend APIs that support mobile applications
โข Building serverless cloud systems on AWS
โข Creating MVP platforms for startups
โข Integrating complex third-party APIs
โข Optimizing backend performance and reliability
โข Debugging and stabilizing production systems
Why Clients Work With Me
Clients hire me because I bring both enterprise engineering experience and startup speed. I understand how to quickly identify the core problem and deliver solutions that work in production.
You can expect:
โข Clear and professional communication
โข Clean, maintainable code
โข Thoughtful system design
โข Reliable delivery and follow-through
I treat every project like a product that will need to scale and evolve over time, not just a quick patch or temporary solution.
Education
Masterโs Degree โ Computer Science
Bachelorโs Degree โ Computer Science
If you're looking for an experienced engineer who can help you build, scale, or improve your software, I'd be happy to learn more about your project.
API Integration
API Development
Web Development
Mobile App
Software Architecture
Cloud Architecture
iOS Development
Software Development
Python
Node.js
NoSQL Database
SQL
Flutter
NodeJS Framework
TypeScript
Full-Stack Development
Android App
Native App Development
SaaS Development
Kezia Regina Putri Tanaga K.
Semarang, Indonesia
$25/hr
5.0
34 jobs
Top-rated full stack developer with 100% Job Success and $20k+ earned on Upwork. Specializing in React, Next.js, and Laravel.
I've worked across SaaS platforms, product dashboards, API-driven systems, and frontend architecture. Mostly alongside startup teams and agencies who need reliable execution, not hand-holding.
What I typically work on:
โ React / Next.js web application development
โ SaaS product builds and feature iteration
โ Laravel backend development and API integration
โ Dashboards, admin panels, and internal tool
โ Frontend cleanup, enhancement, and optimization
โ Stepping into codebases and improving them
โ Bug fixing, performance improvements, and maintenance
โ Database design and scalable backend workflows
Why clients hire me:
โ Strong frontend + backend execution
โ Clean communication and dependable delivery
โ Fast onboarding into existing projects
โ Practical solutions focused on business results
Need a developer who can handle both frontend and backend without hand-holding? Send me the project details and I'll tell you exactly how I'd approach it.
API Integration
React
Next.js
TypeScript
Laravel
REST API
PHP
Vue.js
Web Development
MySQL
JavaScript
SaaS
Database Design
Tailwind CSS
SaaS Development
Satyam S.
Lucknow, India
$20/hr
4.9
59 jobs
Still manually moving data between your CRM, Google Sheets, Airtable, Notion, HubSpot, Pipedrive, or some collection of tools that seemed like a good idea six months ago?
At some point every growing business accidentally hires a full time employee called Copy and Paste.
A lead comes in.
| Someone updates the CRM.
| Someone updates the spreadsheet.
| Someone sends the email.
| Someone books the meeting.
| Then an automation breaks, and someone loses an afternoon fixing it.
Most businesses do not have a people problem. They have a workflow problem.
That is where I come in. I am a Top Rated AI Integration Expert and Full Stack AI Engineer with 50 completed Upwork projects, a 100% Job Success Score, Microsoft Certified AI Engineer (AI-102), and certified n8n Expert.
Want proof before you spend anything? Send me a message or an invite with the tools in your stack and where it hurts. Within 24 hours I will send you a free personalized Loom audit with the two or three fastest automation wins I can see. No pitch, no obligation. If the ideas are useful, we talk. If not, you keep the ideas.
I help startups, agencies, and SaaS companies build AI powered products, automate business operations, integrate CRMs, and ship production ready backend systems. Recent builds include a WhatsApp AI agent that answers travel inquiries and books trips 24/7, salon operations automation on n8n, an AI property damage assessment pipeline, and automated price monitoring with Zapier and Browse.ai. Your team gets back to thinking, deciding, and selling. Anything except updating the same CRM record for the fifth time.
MY EXPERTISE
โข AI Integration and AI Automation
โข AI Agent Development
โข AI Appointment Setters
โข Lead Generation and Qualification Automation
โข Customer Support Automation
โข Sales and Marketing Automation
โข Business Process Automation
โข CRM Automation and SaaS Automation
AI & LLM DEVELOPMENT
โข OpenAI API Integration and ChatGPT Integration
โข Claude API and Gemini API
โข MCP Servers (Model Context Protocol)
โข LangChain and LangGraph
โข LLM Integration
โข Retrieval Augmented Generation (RAG) and Knowledge Base Chatbots
โข AI Chatbot Development
โข Document Processing and Data Extraction
โข Claude Code and Lovable
WORKFLOW AUTOMATION PLATFORMS
โข n8n and Self Hosted n8n Expert
โข Make
โข Zapier
โข Pipedream
BUSINESS SYSTEMS & INTEGRATIONS
โข Airtable Automation
โข Google Sheets Automation
โข Notion Automation
โข HubSpot Integration
โข GoHighLevel Development
โข Pipedrive Automation
โข ClickUp Automation
โข Asana Automation
โข Slack Integration
โข Calendly Integration
โข WhatsApp Automation and WhatsApp AI Agents
โข QuickBooks Automation
โข BotPress
BACKEND & SAAS DEVELOPMENT
Most automation freelancers stop once two apps are talking to each other. I usually start there, because the hard part is not connecting tools. It is making sure they keep working next month, and after somebody changes a field name at 2 AM and forgets to tell anyone. I am a full stack engineer first, so your automations come with error handling, retries, logging, and documentation.
โข Backend Development and Full Stack Development
โข AI SaaS Development
โข API Integration, Webhook Integration, Third Party Integrations
โข NestJS, Express.js, Node.js, FastAPI
โข PostgreSQL, MongoDB, Supabase
โข MERN and PERN Stack
โข Golang, Docker, GitHub, AWS, Microservices
Systems I have built have automated thousands of repetitive operations, streamlined lead processing, reduced operational workload, and cut customer response times from hours to minutes.
A recent client put it better than I can:
"I highly recommend Satyam. He cares about the quality of his work and delivered everything and more. I will hire again."
I work with startups, agencies, and SaaS companies across the US, UK, Europe, Australia, and the Middle East. Available across EST, CST, PST, GMT, and other overlapping time zones, and I usually reply within a few hours. Flexible with project based work, ongoing engagements, part time support, and long term contracts.
So if you are spending your weekdays, or worse, your weekends, manually updating CRMs, moving data between tools, fixing broken automations, chasing leads, or wondering why your fully automated system needs three people to keep it alive...
Then it is time we had a little chit-chat. Message me, and your free Loom audit is on its way.
API Integration
API
API Development
AI Development
Full-Stack Development
Back-End Development
SaaS Development
AI Agent Development
Automation
n8n
Make.com
Zapier
AI Chatbot
Google Sheets Automation
JavaScript
Python
Node.js
ChatGPT
OpenAI API
Claude
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