You will get professionally developed web application
Project details
Excellent web application development while combining engineering and technology as well as business strategy, product innovations, user experience design, user research, visual design, and branding.
Programming Languages
HTML & CSS, JavaScript, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, DesignWhat's included
| Service Tiers |
Starter
$1,800
|
Standard
$3,300
|
Advanced
$6,000
|
|---|---|---|---|
| Delivery Time | 5 days | 10 days | 20 days |
Number of Revisions | 2 | 4 | 7 |
Number of Pages | 1 | 3 | 5 |
Design Customization | |||
Content Upload | |||
Responsive Design | |||
Source Code |
7 reviews
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AK
Arno K.
Oct 18, 2021
Full Stack Senior Team Leader Needed: Python + React + React Native + Vue + Mongodb + Django
Sonny was a pleasure to work with and contributed to our mobile app project where we needed help!
MB
Matt B.
Aug 27, 2021
Experienced React Native dev to join existing team
DM
Daniel M.
Jan 13, 2021
Boom
It was great working with Sonny again. He assisted us in a complicated e-commerce mobile app project and we highly valued his work and skills he brought to the team. Look forward to working with him again in the future.
DM
Daniel M.
Oct 6, 2020
Boom
We hired Sonny to assist us in completing some updates to our e-commerce APIs. He understood the tasks quickly and completed the tasks successfully. Hope to continue to work with him in the future.
DM
Daniel M.
Sep 10, 2020
Mid level or talented Jr. MERN Stack Developer Needed for e-commerce platform
Sonny assisted us on very complex development for managing inventory in our system. He is very skilled and had great communication with the team throughout our engagement. His skill and attention to detail were very high quality and I hope to work with him again.
About Sachit
Full-Stack Developer | AI Solutions Architect
Queens County, United States - 5:05 pm local time
Over the last few years, my expertise has evolved to center around building scalable, intelligent, cross-platform applications that integrate LLMs, retrieval-augmented generation (RAG), and agentic workflows into real-world production environments, particularly in data-intensive sectors (Financial Services and Cyber Security).
Core Expertise
• Frontend: React, Next.js, TypeScript — years of experience developing high-performance, enterprise-grade user interfaces specifically within the Financial Services sector.
• Backend: Python (FastAPI, Flask, Django), C#, .NET, Java, and Node.js — robust API development and data-driven service design. See recent work within Cyber Security.
• Mobile: React Native — delivering unified experiences across devices without redundant codebases. See past Upwork contracts.
• AI Systems: OpenAI API, LangChain, vector databases, RAG architectures, and agent-based automation frameworks.
• Cloud & Infrastructure: AWS, Azure, serverless design, Docker, Terraform, and CI/CD pipelines for efficient deployment and scalability.
• Data & Security: PostgreSQL, MongoDB, DynamoDB, and security-focused integrations tailored for high-compliance industries.
Development Philosophy
I love leveraging AI-assisted development tools to accelerate delivery timelines without compromising quality. My daily driver is Claude Code but typically use many different AI tools within my workflow including for design, review, and data analysis. My approach blends engineering discipline, creative problem solving, and modern AI tooling to build maintainable, future-proof systems by harnessing the vast powers of generative AI technology.
What You Can Expect
• Strong execution across the stack — from architecture and backend integration to polished, performant interfaces.
• Rapid iteration and clear communication — I keep projects moving forward with clarity and accountability.
• A results-driven partnership — I’m equally comfortable designing, coding, and shipping production software under real-world constraints.
If you’re building something that sits at the intersection of AI, data, and scalable full-stack engineering, I can help you move fast, build efficiently, meet deadlines, and have fun at the same time.
Steps for completing your project
After purchasing the project, send requirements so Sachit can start the project.
Delivery time starts when Sachit receives requirements from you.
Sachit works on your project following the steps below.
Revisions may occur after the delivery date.
Build web application