Gift cards and fraud prevention for Volotea
Built Volotea's gift card feature end to end. It sold 300,000+ cards in its first year, and I caught and blocked bulk-purchase abuse straight from production telemetry.
300k+ gift cards sold in year one
Backend engineer · .NET · Azure · AI integration
Nishant Upadhyay
I build backend systems that hold up in production. At Volotea, Europe's award-winning low-cost airline, I built the gift card platform behind 300,000+ sales in its first year. Today I'm building AI tooling with Azure OpenAI and RAG, and running my own startup, Hyndr.
Based in Noida · Open to roles in Noida, Gurugram, Bengaluru and Pune (hybrid or remote)
- gift cards sold in year one Volotea
- 300k+
- first-year gift card revenue Volotea
- €15M+
- third-party API integrations, including Navitaire Volotea
- 100+
- screens managed on a signage platform I worked on Display Now
- 5,000+
Selected work · professional
Client work
Production systems I built or owned at Maven Technosoft and LOGIMONK. Each case study covers the problem, my part in it, the technical decisions and the outcome.
Flight search and API integrations for Volotea
Redesigned Volotea's flight search in Angular, cutting user clicks by about 25%, and delivered 100+ third-party API integrations, including 25+ Navitaire APIs across the modules I worked on.
100+ third-party API integrations
AI-powered Braze campaign testing tool
Own the backend of a .NET 10 tool that catches blank personalization in Braze campaigns before they are sent, using Azure OpenAI and a RAG pipeline on Azure AI Search.
Internal tool · not in production
Advisor module for a property investment platform
Built the Advisor module for Octave Holdings and Investments end to end in about two months, covering database design, 50+ APIs and the Angular frontend. Zero critical bugs after release.
50+ APIs built
Frontend modernization for a digital signage platform
Led the first phase of moving Display Now's digital signage platform, which manages 5,000+ screens for 1,200+ businesses in 180+ countries, from Angular 8 to Angular 17. Also unblocked password reset.
5,000+ screens managed on the platform
Founder · my own startup
hyndr
My early-stage startup. hyndr.in measures speed, ping, jitter and delay under load, then explains the result in plain words. Designed, built and launched in 10 days.
Live · early-stage, pre-incorporation
A speed test gives you one number. Hyndr measures download and upload speed, ping, jitter and delay under load, explains what is actually holding a connection back, and suggests safe next steps. No account needed.
- .NET 10 modular monolith with stateless, signed test sessions and 300+ automated tests
- Angular 22 on Cloudflare Pages, with a Cloudflare Worker test server at the edge
- Privacy by default: nothing is saved unless the person opts in
- GitHub Actions to Acceptance and Production, monitored with Grafana, Prometheus and Loki
- from first build day to public launch
- 10 days
- automated backend tests
- 300+
- fixes in the recommendation engine
- 22
Hyndr Box and the Hyndr Desktop App are in development and not yet released.
Experience
Where I've worked
3+ years of ASP.NET Core and Angular across aviation, real estate, retail and healthcare. 1,000+ APIs built and integrated across four products and my own startup.
-
Oct 2026 – present
Founder · Hyndr (early-stage, pre-incorporation)
- Designed, built and launched hyndr.in, an internet health check, in 10 days.
- Building the Hyndr Desktop App and Hyndr Box (both in development).
-
Nov 2024 – present
Software Developer · Maven Technosoft
- Volotea: built the gift card feature end to end, redesigned flight search, and delivered 100+ third-party API integrations, including 25+ Navitaire APIs.
- Own the backend of an AI-powered Braze campaign testing tool (.NET 10, Azure OpenAI, RAG).
- Now on the team behind the MyEyeDr patient portal (US healthcare).
-
Mar 2024 – Aug 2024
Associate Software Engineer · LOGIMONK Technologies
- Display Now: led the first phase of an Angular 8 → 17 migration for a cloud digital signage platform.
- Built login, password reset, token and session handling on ASP.NET Core with Active Directory.
-
Mar 2023 – Feb 2024
Jr. Software Engineer · LOGIMONK Technologies
- Octave Holdings and Investments: built the Advisor module end to end, from schema to 50+ APIs to the Angular UI.
- REST APIs with EF Core, LINQ and Dapper; deployed through Azure DevOps pipelines.
Technical strengths
What I bring to a backend team
Backend and APIs
Gift card purchase flows for a live airline, 100+ third-party integrations at Volotea, and 1,000+ APIs built and integrated.
Data
Designed the Advisor module schema for Octave; PostgreSQL on Neon behind Hyndr.
Cloud and AI integration
RAG pipeline on Azure AI Search with Azure OpenAI; Hyndr runs on Cloudflare and GCP.
Running production systems
Spotted bulk gift card abuse in New Relic and shipped a configurable block rule.
Frontend when needed
Redesigned Volotea flight search; Angular 22 frontend for Hyndr.
About
About me
I'm a backend engineer with 3+ years of experience building ASP.NET Core systems for clients in aviation, real estate, retail and healthcare. Most of my work sits behind customer-facing products: purchase and booking flows, third-party integrations, and the monitoring that shows when something goes wrong.
Lately my work has moved toward AI integration: retrieval pipelines on Azure AI Search and Azure OpenAI wired into .NET backends. In October 2026 I started Hyndr, an internet health check, and took it from an idea to a live product in 10 days.
- Education
- B.Tech, Computer Science, Gyan Ganga College of Technology, Jabalpur, 2018 – 2022 · CGPA 8.15 / 10
- Certification
- Microsoft Certified: Azure Fundamentals (AZ-900), 2022
Contact
Get in touch
Hiring for a backend role? I'm looking at product companies in Noida, Gurugram, Bengaluru and Pune, hybrid or remote. Send a message and I'll reply by email.
Prefer LinkedIn? Message me there (opens in a new tab).