You will get custom web app from your messy Google Sheets/Excel system
Project details
Most businesses run on Excel and Google Sheets until they grow too big and those spreadsheets become a nightmare of broken links, manual errors, and wasted hours.
I take that messy workflow and turn it into a reliable, custom web application.
What makes me different:
• 6+ years of freelancing experience: I care about real business needs, not just code.
• Full-stack + DevOps skills: I don't just build the app; I deploy it securely and make sure it works in production.
• AI-ready: I can add smart features like document classification, data extraction, or automated decision-making.
• Client-focused: I provide training, user guides, and ongoing support to ensure your team actually uses the system.
How it works:
• You show me your current spreadsheet process.
• I design a custom web app that automates the key tasks.
• I deploy it, train your team, and you start saving time.
Whether you need to replace your current system or enhance it, I can always help you make it better :)
I take that messy workflow and turn it into a reliable, custom web application.
What makes me different:
• 6+ years of freelancing experience: I care about real business needs, not just code.
• Full-stack + DevOps skills: I don't just build the app; I deploy it securely and make sure it works in production.
• AI-ready: I can add smart features like document classification, data extraction, or automated decision-making.
• Client-focused: I provide training, user guides, and ongoing support to ensure your team actually uses the system.
How it works:
• You show me your current spreadsheet process.
• I design a custom web app that automates the key tasks.
• I deploy it, train your team, and you start saving time.
Whether you need to replace your current system or enhance it, I can always help you make it better :)
Programming Languages
Python, Java, TypeScriptCoding Expertise
Cross Browser & Device Compatibility, Performance Optimization, SecurityWhat's included
| Service Tiers |
Starter
$120
|
Standard
$200
|
Advanced
$400
|
|---|---|---|---|
| Delivery Time | 3 days | 7 days | 14 days |
Number of Revisions | 3 | 5 | 5 |
Number of Pages | 1 | 3 | 5 |
Design Customization | - | - | - |
Content Upload | - | - | |
Responsive Design | |||
Source Code |
Optional add-ons
You can add these on the next page.
Fast Delivery
+$50 - $150
12 reviews
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KP
Kaitlin P.
Sep 23, 2022
Need Someone to Write Google Sheets Script
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Mustafa U.
Jul 30, 2021
Update products using Shopify API
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Shrikant P.
Jul 29, 2021
Google Sheet App Script
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Sophie L.
Jul 27, 2021
Developer needed to create python code for research project
Sahiru was nice to work with and reasonably priced. Most importantly, he responds very quickly to all messages and requests for changes.
SL
Scott L.
Jul 21, 2021
Populate PDF from Google Sheet Data
Great work, delivered quickly. Would recommend Sahiru for future jobs
About Sahiru
Spreadsheet-to-Web Automation Expert | AI Workflow Integration
Galle, Sri Lanka - 3:02 pm local time
My background combines full-stack engineering + DevOps, so I don’t just build features - I ensure they are deployable, reliable, and maintainable in production environments.
Core Expertise
1. Full-Stack Application Development
End-to-end development using React (Next.js), Node.js (Express), Python (FastAPI) and Java (Spring Boot)
Building interactive, logic-heavy applications with clean UI (Tailwind CSS, Material UI)
Designing scalable backend systems with REST APIs and structured data flow
2. AI Integration & Smart Systems
Building RAG-based AI workflows that connect LLMs to real project data
Experience integrating OpenAI and LLM APIs into practical applications
Designing systems that automate tasks with precision
3. DevOps & Deployment Engineering (Key Strength)
CI/CD pipelines using GitHub Actions & GitLab CI
Infrastructure automation with Docker, Terraform, Ansible, Packer
Cloud deployment on AWS
Focus on repeatable, production-grade deployments, not just local builds
4. Automation & Workflow Systems
Building internal tools and automations (Apps Script, APIs, scripting)
Real-time data handling and integrations across systems
Process optimization to reduce manual work in operations
How I Work
Deployment-first mindset: I design systems knowing they must run reliably in real environments, not just locally
Practical architecture: No overengineering - only what scales and solves the problem
Clear communication: Regular updates, structured delivery, and clean code practices
Problem-solving focus: I handle complex logic, not just UI or basic CRUD apps
Tech Stack
Frontend: React, Next.js, TypeScript, Tailwind CSS
Backend: Node.js (Express), Python (FastAPI), Java (Spring Boot)
DevOps: AWS, Docker, Terraform, Ansible, Packer, CI/CD
Databases: MongoDB, MySQL, PostgreSQL, Firebase
AI: LLM Interfaces, RAG pipelines, vector-based retrieval systems
Let’s Work
If you need someone who can build + deploy + automate your system end-to-end (not just write code), I can help.
Send me your requirements - I’ll break down the architecture, approach, and timeline clearly.
Steps for completing your project
After purchasing the project, send requirements so Sahiru can start the project.
Delivery time starts when Sahiru receives requirements from you.
Sahiru works on your project following the steps below.
Revisions may occur after the delivery date.
Discovery & Analysis
I review your current Excel/Google Sheets workflow and identify bottlenecks. You provide a sample spreadsheet and a brief walkthrough of your process. I deliver a written summary and a fixed-price quote.
Design & Prototyping
I design the database structure, user interface, and data flow. You get wireframes and a dashboard mockup to visualize the final product.