I work on a real-time C++ pricing engine for auto dealers: adding product features and making it faster. Along the way I drove its Linux migration (75% faster startup), moved its AWS infra from public to private networking, and replaced Jenkins with GitHub Actions. 6+ years in production C++.
For the last four years I've worked on one product: a C++ platform that auto dealers use to price deals in real time. Over that time I've owned very different work on it, from business logic and an OS migration to cloud security and delivery pipelines.
Scalable C++20 microservices that calculate lease, finance and cash payment deals while a customer is at the dealership. Every quote has to apply the right taxes, lender rules and deal options, and the platform handles millions of high-concurrency requests.
Business logic for real-time deal pricing: custom tax computations based on both dealer and customer location, with jurisdiction-specific city, county and state rules; lender configurations per deal type; and complex scenarios like conditional incentives, trade-ins and down-payment variations. Tuned the services to cut deal turnaround time so dealers close faster.
Moved the legacy Windows system to Linux: decoupled Windows dependencies, then drove the final phase that removed Windows-only code and builds for good.
20 min → 4 min startupOwned a security remediation end to end: prototyped ALB vs NLB, wrote the design and runbook, then built private load balancers, Route 53 failover and Lambda health checks in Terraform, with a public/private toggle for safe rollout. Validated in every pre-production environment across two regions.
Retired the last Jenkins pipelines: builds, tagged releases and deploys on GitHub Actions, scheduled jobs on ECS Fargate with EventBridge Scheduler, plus multi-region deploys and PR automation that notifies reviewers on Slack.
Added static security scanning to CI so issues are caught before release. Introduced clang-format and graceful shutdown on signals, and ran a spike on adding a Redis cache via redis-plus-plus to scope what would need to change.
The biggest win on the platform so far. I was a core engineer on migrating the long-lived C++ code base from Windows to Linux, and drove its final phase through to a seamless production rollout. It wasn't just about moving code; it was about redefining how fast and how reliably the system runs.
Cut down from 20 minutes to just 4.
Complete elimination of spikes during restarts.
C++20, open-source tooling and CI/CD on a single platform.
Free tools I built because I wanted them to exist. Both run entirely in the browser, with nothing to install and no data sent anywhere.
Markdown, plus its images, in one file you can just send someone.
A .rkf file holds a Markdown body and every image it references.
No sidecar images/ folder, no broken links in the email, no base64 bloat in the text.
The file grows by roughly the true size of the pictures, and images stay images; they are never converted to text.
rk CLI, an installable offline web editor and a VS Code extensionPython · JavaScript · WebCrypto · Compression Streams · MIT licensed
A free, ATS-friendly resume builder. Your data never leaves your browser.
Fill in the sections and watch a print-ready page update as you type, then download a PDF. No sign-up, no server, no tracking.
Merged three device firmware code bases for a handheld healthcare device into one modular repo, built per variant with preprocessor flags. Wrote the HAL for each subsystem and ported the firmware from STM32L1 to STM32L0 microcontrollers.
Contactless office entry built for COVID: forehead temperature from a thermal camera, face-mask detection and employee checks with encrypted QR codes. Started on Raspberry Pi, moved to NVIDIA Jetson Nano for performance.
Multitenant system where people consult health providers over IVR and WhatsApp for COVID, mental health and more. Built the workflow, actions and transitions on a RESTful state-machine service, plus Python scripts that provision workflows and test every state transition.
Built a feature into a smart-home controller that replaced a standalone RF sniffer: RF traffic logging can be turned on and off remotely, and the logs are captured and served over the network for root-cause analysis.
Ran BACnet servers in Docker containers on EC2, created and destroyed on demand, so physical hubs can be load-tested without hardware. The same client talks to both the cloud servers and physical BACnet servers.
Added WritePropertyMultiple and Create/Delete Object services to the open-source BACnet stack (0.8.6), which the community hadn't implemented yet, by analyzing existing service packets in Wireshark and building the new ones from them.
A cloud-compatible BACnet client that mirrors a physical server's configuration to servers running on EC2, so a device can be restored if its configuration is ever lost.
Bridged two industrial protocols on Linux, mapping BACnet read/write services to Modbus coils and holding registers so data survives a BACnet server restart.
Controlled lights and switches on an Arduino from a PC: the PC talks BACnet over Wi-Fi to a Raspberry Pi, which drives the Arduino over Zigbee using XBee modules.
Looking for older work? College projects
Indraprastha Institute of Information Technology, Delhi
2015 – 2019 · Electives: Data Structures & Algorithms, Competitive Programming, Advanced ProgrammingNagarro Excellence Awards.
For outstanding contribution to client delivery.
Recognized three times for excellent performance and modernization work.
Everything I learn goes into public notes, free for anyone to use.
Notes on C/C++, system design, operating systems, networks, DBMS, DevOps and more, with 40+ interactive explainers.
Interactive walkthroughs: load balancing, CDNs, proxies, race conditions, seat booking and more.
A curated, searchable list of websites, tools and browser extensions I actually use.
Searchable AI prompts for work, learning, images and everyday use, ready to copy.
ATLAS traffic-light enforcement, the ShoppingWagon store and a BPSK/QPSK radio on NI USRP.
Want to talk C++, Linux, cloud infrastructure or embedded systems? I'm always happy to connect.