I build backends
that scale.
Backend Engineer shipping production systems — scalable REST APIs, real-time transaction processing, and multi-provider integrations. Currently building FirmsLedger.
Backend Engineer shipping production systems — scalable REST APIs, real-time transaction processing, and multi-provider integrations. Architected the backend for Betorra.
Technologies I work with
Services
How I help businesses grow
From idea to production — I build the technology that powers your business.
Business Websites
Professional websites that build trust and convert visitors into customers. Clean design, fast performance, and SEO-optimized.
Admin Dashboards
Custom admin panels and dashboards to manage your business operations efficiently with real-time data and intuitive interfaces.
SaaS Products
End-to-end SaaS development from database design to deployment. Scalable architecture built for growth.
API Development
Robust REST APIs with proper documentation, authentication, and error handling. Built to integrate with any frontend or service.
AI Integrations
Integrate AI capabilities into your existing products — from chatbots and NLP pipelines to intelligent automation.
Internal Tools
Custom internal tools and automation systems that save your team hours of manual work every week.
Projects
Work I'm proud of
Real products solving real problems — from client work to personal builds.
FirmsLedger
A verified USA manufacturing directory connecting B2B buyers with domestic suppliers. Built on trust with 5,000+ manually checked listings, 50 states, and 15 categories, completely free from paid rankings or sponsored bias.
The Challenge
Most manufacturer directories sell the top spot to the highest bidder, making it difficult for sourcing professionals to find genuine, high-quality domestic manufacturers rather than just those with the largest advertising budgets.
The Solution
Built a transparent B2B directory with over 5,000+ verified manufacturers. Every listing is manually checked, completely free to search and list, ensuring that quality and relevance dictate search placement rather than advertising spend.
Cyber7
Real-time MDR (Managed Detection & Response) alerts application that converts critical security incidents into instant push notifications. Built for SOC analysts and their clients at an Australian managed security provider, enabling faster threat response through mobile incident management.
HMD
Premium medical education platform delivering elite physician training, evidence-based programs, and physician-executive development. Features structured curricula, a clinical research library, peer collaboration hub, and an AI-powered CV builder for medical professionals worldwide.
CDI Engineering
Professional corporate website developed for an engineering company with a modern, responsive interface focused on presenting company services, capabilities, project portfolio, and business information in a clear and professional manner.
BizBuyBox
Modern business platform with a clean user experience designed to simplify business acquisition operations through an intuitive dashboard, deal management, broker tools, and streamlined onboarding.
Betorra Gaming Platform
Production backend for a multi-provider gaming platform — architected services supporting 1,200+ games with real-time session management, multi-provider wallet operations, and idempotent transaction processing.
The Challenge
A gaming platform needed a unified backend to integrate multiple external gaming providers, each with different APIs, while maintaining transaction consistency and real-time session management at scale.
The Solution
Built a modular monolith backend with NestJS supporting 1,200+ games across 4 certified providers. Implemented idempotent transaction handling, secure callback validation, and reconciliation pipelines.
Linux Server Monitor
AIOps Dashboard
AI-powered Linux server monitoring dashboard with real-time metrics, anomaly detection, Telegram alerts, and Google AI-driven insights — deployed live on Railway.
The Challenge
Server admins need to manually check system health metrics and often miss anomalies until they cause outages, with no intelligent early warning system.
ChillSpace
Full-Stack Rental Marketplace
Full-stack Airbnb-style rental platform with real-time booking workflows, JWT authentication, third-party payment gateway integration, and clean RESTful API contracts.
The Challenge
Property owners needed a simple, reliable platform to list rentals and manage bookings without the complexity and high fees of major platforms.
VoiceDesk
Local Voice AI Assistant
Lightweight Python voice assistant pipeline using Groq Whisper for ASR, Llama 3.3 70B for response generation, and gTTS for speech output — with custom conversation memory.
The Challenge
Existing voice assistants rely on expensive cloud APIs and lack privacy. Users needed a local-first solution that works without paid subscriptions.
Retail ERP System
Enterprise Web Application
Modular ERP system with 3-tier architecture, role-based access control, and SQL Server backend. Built for retail inventory and billing management.
PsycheQuiz
ML-Powered Assessment Platform
Flask-based mental health assessment platform with ML-powered emotional analysis, dynamic scoring logic, and actionable recommendations.
School Management System
ASP.NET MVC Application
Full-stack institutional platform with role-based access control, CRUD operations via Entity Framework Core, and a responsive Bootstrap 5 UI.
Experience
Where I've worked
Production-level engineering across backend systems, AI products, and full-stack applications.
Backend Engineer
- Integrated 1,200+ games across 4 external gaming providers with a production-ready backend
- Designed a modular monolith architecture with clear domain separation — games, sessions, balances, transactions, providers, and admin modules
- Built provider APIs covering game launch, wallet callbacks, debit/credit, rollback, and reward processing
- Implemented transaction idempotency, secure callback validation, and reconciliation pipelines
- Documented REST APIs using Swagger/OpenAPI specifications
- Contributed to backend services running in AWS-hosted environments
AI Engineer
- Optimised multilingual NLP processing pipelines supporting AI-powered dubbing workflows across 5+ target languages
- Contributed to audio-processing and speech-synthesis integrations for production-scale dubbing workloads
- Worked on prompt engineering strategies and LLM-based translation pipelines
Full-Stack Developer Intern
- Designed RESTful API endpoints and built MERN stack UI features in an Agile team environment
- Developed React components and Node.js backend services end-to-end
Python Backend Intern
- Built a Django media-sharing platform with user authentication and media management APIs
- Developed RESTful API endpoints for media upload, retrieval, and management
About
A bit about me
I'm Harsh — a software engineer based in Ahmedabad, India. I work across the full stack, from designing database schemas and APIs to building the interfaces that users interact with.
I recently built FirmsLedger, an unbiased, verified B2B USA manufacturer directory. I designed its parallel data ingestion and verification pipeline to aggregate and clean supplier details, optimized its PostgreSQL data layers, and developed custom filtering systems to ensure a premium, sponsored-free search experience.
I also architected the backend for the Betorra gaming platform, integrating 1,200+ games across 4 external providers, implementing transaction idempotency, and launching secure API layers on AWS.
Outside of work, I build things for myself: AI-powered monitoring dashboards, SaaS tools, and automation systems. I'm comfortable picking up whatever stack the problem calls for — whether that's NestJS, Python, React, or something new.
What drives me is turning a complex requirement into something clean and reliable. If you need someone who can own a feature end to end — backend, frontend, and deployment —let's chat.
Quick facts
Ahmedabad, India
1+ years in production
Full-Stack & Software Engineering
NestJS · React · TypeScript · Python
Available for Backend & Full-Stack roles
B.E. Computer Engineering
Skills
Technologies I work with
Focused on backend engineering with production experience across these technologies.
Backend
Languages
Databases & ORM
Cloud & DevOps
AI & ML
Tools
Education
Academic background
B.E. Computer Engineering
SAL College of Engineering
Ahmedabad
Sept 2021 – May 2025
CGPA: 7.43 / 10
- Computer Science fundamentals: DSA, DBMS, OS, Networks
- Backend and full-stack development projects
- Machine learning and AI coursework
Testimonials
What people say
Feedback from clients and colleagues I've worked with.
Harsh delivered a solid backend that handled our complex multi-provider integration flawlessly. His attention to API design and documentation was impressive.
Sunny
Co-Founder, Betorra
Reliable, communicative, and technically strong. He understood our business requirements quickly and translated them into clean, working code.
Raj
Co-Founder, DubFlix
His backend work on the wallet and transaction system was production-grade from day one. Great understanding of data consistency and error handling.
Tushar
Tech Lead, DubFlix