Work Experience — Harsh Kadyan

A working history across freelance full-stack delivery and three live startups — Megallm, Ghostpay and TabTrips — covering backend engineering, product management and automation. The timeline below traces each role from the start of 2022 through today, with the responsibilities held and the work shipped in each position.

Full-Stack & Automation Developer

Freelancer · Self-employed · github.com/Brutalharsh

2022 — Present

Delivered 100+ projects across Python, JavaScript and backend systems for a range of clients, spanning one-off scripts to production web applications.
Built automation tools and Chrome extensions that removed repetitive manual work and embedded useful functionality directly into the browser.
Designed and shipped REST APIs and backend utilities for authentication, data processing and third-party service integrations.
Developed custom web apps end-to-end, from database design and API layers through to frontend interfaces and deployment.
Delivered scalable backend services and API integrations tuned for reliability and maintainability as client needs grew.

Backend Developer

Megallm · AI Startup

2024 — Present

Built the backend for a unified AI model gateway that exposes multiple AI providers through a single, consistent API surface.
Designed and maintained APIs for multi-model access, handling routing, authentication and response normalization across providers.
Owned database schema and performance optimization to keep the gateway fast and reliable as model traffic scaled.
Maintained published NPM packages used by integrators, keeping versioning, types and documentation in sync.
Coded the internal admin panel for managing models, keys and usage monitoring across the platform.
Managed the team's Notion workspace and tech team workflow, keeping specs, tasks and engineering knowledge organized and discoverable.

Product Manager

Ghostpay · Fintech Startup

2024 — Present

Leading the product for digital wallet infrastructure, defining roadmap, requirements and success metrics for core payment flows.
Ran product workflows across Notion, Jira, ClickUp and Discord, tailoring each tool to the team and stage it served best.
Coordinated cross-functional work between engineering, design and operations to keep releases aligned with business priorities.
Contributed directly to the backend and technical architecture, bridging product decisions with hands-on implementation rather than handing specs over the wall.

Backend Developer

TabTrips · Hotel Booking Startup

2025 — Present

Working on the backend systems that power TabTrips' hotel booking platform.
Designed and developed the B2B system enabling business partners to search, book and manage hotel inventory at scale.
Built reliable API layers and data models for availability, pricing and booking workflows under real operational constraints.

Education

Bachelor of Computer Applications (BCA)

Maharshi Dayanand University (MDU), Rohtak · mdu.ac.in

Pursuing

12th Grade

Senior secondary education completed.

Completed