You will get Expert-Vetted Engineers to Accelerate Your Development

Sahil S.Status: Offline
Sahil S. Sahil S.
4.8
Top Rated

Let a pro handle the details

Buy Web Application Programming services from Sahil, priced and ready to go.
Sahil S.Status: Offline
Sahil S. Sahil S.
4.8
Top Rated

Let a pro handle the details

Buy Web Application Programming services from Sahil, priced and ready to go.

Project details

Accelerate Your Development with Expert Engineers in Just 3 Simple Steps

At Sublime Data Systems, we specialize in scaling your development team with pre-vetted engineers, delivering high-quality, scalable solutions tailored to your needs.

Why Choose Us?
 • Top 1% Talent: Our engineers excel in Node.js, React.js, TypeScript, AWS, GCP, SSR, Redux, React Query, WebSocket, ORMs, and more.
 • Cloud Expertise: Backed by AWS Certified Engineers and Google Cloud Professionals, ensuring scalable, secure, and high-performance solutions.
 • Proven Success: We've supported startups and Fortune 500 companies, with our products used by industry giants like Cisco, Coca-Cola, Microsoft, and Innovaccer Inc. These companies have collectively raised over $600M.

Our 3-Step Process:
1. Discovery: We assess your needs and identify the right-fit engineers.
2. Selection: We share top CVs, arrange interviews, and conduct tests for a perfect match.
3. Kickoff: Once terms are finalized, we start executing your project immediately.

Let’s connect and build your dream team today.
Programming Languages
HTML & CSS, JavaScript, TypeScript
Coding Expertise
Performance Optimization, Security
What's included
Service Tiers Starter
$1,200
Standard
$2,400
Advanced
$4,800
Delivery Time 7 days 15 days 30 days
Number of Revisions
000
Design Customization
Content Upload
Responsive Design
Source Code
Optional add-ons You can add these on the next page.
Need Expert JavaScript Help for One Day? (+ 1 Day)
+$280

Frequently asked questions

4.8
69 reviews
91% Complete
4% Complete
3% Complete
1% Complete
(0)
1% Complete

FS

Frank S.
5.00
Mar 13, 2026
Senior Full-Stack Developer - AI App Builder Platform Great to work with. Responsive. Fast. Will hire again.

JA

Jean-Michel A.
5.00
Feb 12, 2026
Build an AI agent for WhatsApp (via Twilio)

BD

Benjamin D.
5.00
May 2, 2025
Full-Stack Engineer (Node.js & React) with AWS Experience Absolutely outstanding work! Incredibly skilled, responsive, and detail-oriented—delivered exactly what we needed ahead of schedule. Highly recommended!

JA

Jean-Michel A.
5.00
Mar 11, 2025
Fast-Paced Next.js/Node.js Developer - AI Tools Proficiency Required I've had the pleasure of working with Sahil multiple times, and his professionalism, expertise, and dedication continue to impress me. He is a highly proficient Next.js/Node.js developer with deep knowledge of AI-powered tools. His work is always of the highest quality, delivered on time, and perfectly aligned with project goals.
What truly sets Sahil apart is his clear and transparent communication—he keeps everything well-documented and ensures smooth collaboration. A few months back, I worked with him on a project and recently rehired him for a smaller task. If I have any future projects requiring his or his team's expertise, I will definitely reach out again. Highly recommend him for anyone looking for a reliable and skilled developer

MM

Mike M.
1.00
Feb 18, 2025
Dev work Unfortunately, this one was a bad hire. Let me save you some time and money—working with Sahill was a complete disaster. Overpromised, underdelivered, and when things went south, he played the blame game instead of fixing the issues. His operation is built on smoke and mirrors—talks a big game about his team’s capabilities, but when it’s time to deliver, it’s nothing but excuses, miscommunication, and conveniently inflated invoices.

He’ll sell you the dream—tell you he’s got all the right people, all the expertise—but don’t buy it. When push comes to shove, the results don’t match the requirements. The most critical part of any project is execution, and on that front, he failed—repeatedly. And when called out? Gaslighting, deflecting, and trying to squeeze more money out of the situation. Nine days into the project he wanted more money and never even completed the original work in the first place.

This wasn’t just a bad deal; it was a waste of time, effort, and resources. If this is what passes for “Expert Vetted,” then the bar is set way too low. Now I have to clean up the mess and start over—something that could have been avoided if professionalism and competence were actually part of the equation from the beginning with Sahill.

I’ve been on this platform long enough to know the difference between developers who hustle to make things right and those who just hustle. Sahill is the latter. If you’re looking for solid development work, look elsewhere—unless you enjoy paying for frustration and “Funny Business”.

The job was simple—step into an already-built project, refine it, and execute. No guesswork, no starting from scratch. A clear-cut blueprint in Figma, video breakdowns included. All laid out. Yet, instead of delivering, what do you get? A mess that forces you to bring in another team just to fix their screw-ups. That’s not just inefficiency—it’s a liability. A waste of time, money, and trust. Poor execution, poor experience. Overall, a failed project and a poor working experience.

It’s not about paying for delivery—I’ve had no problem paying for quality work that’s done right but no “Funny Business” and take advantage. I asked for the work to be corrected and then it's paid for, not free labor. I put money down for a project, and he came up short—couldn’t deliver on the core requirements, admitted as much himself. Lesson learned. If you're looking for straight-up, honest work, tread carefully with Sahill and his company. This is about ethics. It’s about doing the job you said you’d do and building relationships that actually mean something in the long run. If you can’t deliver on that, you shouldn’t be in this business.
Sahil S.Status: Offline

About Sahil

Sahil S.Status: Offline
Expert-Vetted AI-First Architect | Full-Stack, SaaS & LLMs
100% Job Success
4.8  (69 reviews)
Ahmedabad, India - 2:01 am local time
🏅 Databricks BrickBuilder Partner — Bronze
🤝 Registered Member of the Anthropic Claude Partner Network

🥇 Expert-Vetted | Top 1% on Upwork | 100% Job Success | $500K+ Earned

Software engineer with 14+ years of experience and an MS from San Jose State University. Started at Broadcom and Nuance Communications in the Bay Area

I've built SaaS products across Fintech, Healthtech, and HR Tech — platforms that have contributed to $600M+ in funding and run inside companies like Nike, Goldman Sachs, Johnson & Johnson, Formula 1, and Cisco.

Most of what I build now is AI-first — RAG pipelines, agentic workflows, LLM integrations, and the data infrastructure underneath them that actually makes AI reliable in production.

🤖 AI & LLM Engineering: Claude (Anthropic), GPT-4, LangChain, LangGraph, AWS Bedrock, Pinecone, Neo4j (GraphRAG), LangSmith, Phi-3 Fine-Tuning, MCP agentic workflows, document intelligence

📊 Data Engineering & ML Ops: Databricks (Apache Spark, Delta Lake, MLflow, Unity Catalog), dbt, Azure Data Factory, Python ETL pipelines, data lakehouse architecture, batch & streaming pipelines (Kafka, RabbitMQ)

🚀 Full-Stack Development: Node.js, NestJS, Python (FastAPI, Django, Flask), React, Next.js, TypeScript

☁️ Cloud & DevOps: AWS (EC2, Lambda, SageMaker, Bedrock, Textract, Comprehend), GCP, Azure, Docker, Kubernetes, Vercel

🗄️ Databases: PostgreSQL, MongoDB, MySQL

🔐 Compliance: HIPAA, PCI DSS, multi-tenancy, RBAC, AWS Cognito

Ready to build something great? Message me — let's figure out in one conversation whether we're the right fit.

Steps for completing your project

After purchasing the project, send requirements so Sahil can start the project.

Delivery time starts when Sahil receives requirements from you.

Sahil works on your project following the steps below.

Revisions may occur after the delivery date.

Team Assignment and Project Planning

We assign the right engineers to your project, based on your requirements, and create a detailed project plan with timelines, milestones, and clear objectives to ensure smooth execution.

Development and Implementation

Our engineers begin development, implementing the solution with high-quality standards, using the best technologies. Regular updates are provided, ensuring transparency and alignment.

Review the work, release payment, and leave feedback to Sahil.