[ POC Development Specialist — Available for Freelance ]

AI • AUTOMATIONBACKEND & POC.POC Development Specialist — AI, Automation & Backend Product Development

POC development specialist building rapid prototypes, AI automation layers, and production-grade backends — from idea to working MVP in 4 weeks.

Rahul Painuly — POC Development Specialist for AI, Automation and Backend product development
[ POC • AI • AUTOMATION • BACKEND ]

WHAT I DO.

[01] Services

[02] Solutions

01 / Architecture

System Design

High-scale enterprise applications built from scratch with clean, resilient foundations.

02 / Core

API Integration

Secure REST & GraphQL endpoints with 99.9% uptime guarantees and rate limiting.

03 / Data

Postgres / Redis

Query optimization, database tuning, and distributed caching strategies.

04 / POC + AI

POCs & AI Automation

Rapid prototypes, MVPs and AI automation layers — from idea to working product in 4 weeks.

05 / Product

Frontend & Full-Stack

Next.js, React and TypeScript interfaces — SEO-optimized and production-ready.

06 / Legacy

Modernization

Event-driven integration with core banking (FLEXCUBE), ERPs and enterprise systems.

07 / Scale

Performance

Latency reduction through caching, query tuning, and architectural refactoring.

08 / Trust

Security

Compliance, data protection, and security best practices for banking & pharma.

WHY CHOOSE ME.

[01] Value

[02] Outcomes

01 / Velocity

Speed to Market

Ship fast with clean architecture. Production-ready MVPs in as little as one week.

02 / Uptime

Zero-Downtime

Production-grade systems with 99.9%+ uptime. Event-driven, fault-tolerant, auto-scaling.

03 / Scope

Full-Stack & AI

From backend architecture to AI features — end-to-end ownership of your product.

04 / Clarity

Transparent

Weekly demos, clear timelines, no surprises. You always know project status.

05 / Trust

NDA Trusted

Startups and enterprises, many under NDA. Your IP stays safe.

06 / Scale

Enterprise

Banking, pharma and SaaS systems. Compliance, security and scale included.

Industry Recognition
HEMANXKAVEOSOFT

WHO I AM.

[01] Background

[02] Philosophy

Building the invisible architecture that powers the visible world.

I am a multidisciplinary developer focused on building digital products that combine aesthetic excellence with technical precision.

Philosophy

With over 2 years of experience in the industry, I have worked with startups to launch resilient services. The best work happens at the intersection of logic and creativity.

Engineering
High-uptime backend systems
Experience
Aesthetic precision & utility
Consultancy
Architectural optimization
AI Layer
LLM local orchestration

STACK.

[01] Expertise

[02] Infrastructure

AI Layer
Antigravity
AI Layer
Ollama / LLMs
AI & Scripting
Python
Backend
Java / Spring Boot
Backend
Node.js / TypeScript
Frontend
Next.js / React
Database
PostgreSQL / Redis
Infrastructure
Kafka / Messaging
Infrastructure
AWS
Infrastructure
Docker / Linux
Philosophy
Clean Architecture
Quality
Testing & Observability

SELECTED WORK.

[01] Case Studies

[02] System Design

Gravity OS
01

Gravity OS

A desktop application designed to run Large Language Models locally, powered by Ollama. It enables users to download, manage, and orchestrate multiple open-source models directly on their machine without relying on cloud APIs. The system acts as a lightweight AI operating layer — allowing structured agent collaboration, task execution, and model coordination in a controlled local environment.

Challenge

Developers needed a way to run AI models locally without cloud dependency or API costs.

Solution

Built a desktop OS layer with Electron and React, orchestrating local LLMs via Ollama with a Python backend.

Results

Enabled offline AI workflows, reducing API costs to zero while maintaining full data privacy.

ElectronReactOllamaPythonLocal AI
AI Pharma E-commerce
02

AI Pharma E-commerce

AI-enabled e-commerce platform for a pharmaceutical company that automates medicine ordering, prescription validation, inventory control, and intelligent customer assistance. The system supports both B2C customers and B2B bulk buyers (clinics, distributors, hospitals) while ensuring regulatory compliance, data security, and operational efficiency.

Challenge

Pharma company needed a compliant, AI-powered platform to handle B2C and B2B orders with prescription validation.

Solution

Developed a Next.js frontend with Spring Boot backend, integrated OpenAI for intelligent assistance, and built compliance layers.

Results

Supported 10K+ daily users, automated prescription validation, and achieved regulatory compliance.

Next.jsJava Spring BootPostgreSQLOpenAICompliance
Core Banking Integration
03

Core Banking Integration

Event-driven integration layer between legacy core banking systems, FLEXCUBE SOAP APIs, and modern REST services.

Challenge

Legacy banking system needed to connect with modern discounts services while maintaining transaction integrity.

Solution

Built an event-driven integration layer using Spring Boot and Kafka to bridge FLEXCUBE SOAP APIs with REST services.

Results

Achieved 99.9% uptime, processed millions in daily transactions, and enabled real-time data sync.

Spring BootKafkaPostgreSQLFLEXCUBEDocker

MY PRODUCTS.

[01] SaaS

[02] Bootstrapped

PROCESS.

[01] How I Work

[02] Step by Step

01

Discovery

Deep-dive into business goals, users, and technical constraints before building.

02

Architecture

Scalable, cost-effective foundations — schema, API contracts, system design.

03

Development

Clean code, automated testing, continuous delivery. Weekly demos to stay in the loop.

04

Delivery

Production deploy with monitoring and observability. Docs and knowledge transfer.

PROOF OF WORK.

[01] Metrics

[02] Results

Performance
60%
Latency Reduction

Reduced API latency by 60% for a B2B SaaS platform serving 500K+ requests daily.

Reliability
99.9%
Uptime

Achieved 99.9%+ uptime for a core banking integration handling millions in daily transactions.

Scale
10K+
Daily Users

Built AI-powered pharma platform supporting 10K+ daily users with real-time inventory.

Speed
4
Weeks MVP

Delivered production-grade backend and AI features for a startup MVP in just 4 weeks.

FAQS.

[01] Questions

[02] Answers

I work in focused, high-velocity sprints: quick POCs can ship in days, and full MVPs are typically delivered within 4 weeks depending on scope. Larger production-grade systems get a fixed timeline after the discovery phase — and I stick to it.
Both. I can integrate with your existing engineering team or handle full project delivery independently. I'm comfortable working solo, augmenting your team, or leading development efforts.
I offer fixed-price projects for well-defined scopes and hourly billing for ongoing work. All engagements start with a discovery call to define scope, timeline, and budget.
Weekly demos, async updates via Slack/Teams, and monthly strategy calls. You'll always know the project status. I use project management tools for transparency.
Backend: Java Spring Boot, Node.js, Python. Frontend: Next.js, React, TypeScript. Cloud: AWS, Docker, Kubernetes. AI: OpenAI, Ollama, LLM orchestration. Databases: PostgreSQL, Redis, MySQL.
Book a free 30-minute consultation call. We'll discuss your project, goals, and timeline. If it's a good fit, I'll send a proposal within 48 hours.

LET'S BUILD SOMETHING.

Book a free 30-minute call to discuss your project, goals, and timeline. No commitment required.

Limited spots available each month — book early to secure your timeline.