Open to senior systems, firmware & backend roles

Suman
Saurav.

Building gaming platforms from the BIOS up — UEFI firmware, secure boot, DRM, and the OS plumbing that runs underneath every game.

BIOS Developer · Light & Wonder · Las Vegas

200K+: Members on prod
$1.4M: Annual savings shipped
<0.5s: Kafka P99 replication

See my work→

Get in touch

GitHub ↗LinkedIn ↗suman.saurav117@gmail.com

Las Vegas, NVAvailableSoftware Engineer

Open to senior systems, firmware & backend roles
Las Vegas, NV
BIOS Developer · Light & Wonder · Las Vegas
BIOS · UEFI / EDK2 · Boot loaders · DRM
Java · Spring Boot · Kafka · Postgres
Firmware · Distributed Systems · Backend
Open to senior systems, firmware & backend roles
Las Vegas, NV
BIOS Developer · Light & Wonder · Las Vegas
BIOS · UEFI / EDK2 · Boot loaders · DRM
Java · Spring Boot · Kafka · Postgres
Firmware · Distributed Systems · Backend

01About

From the BIOS up, engineering the layers your code runs on.

I'm a software engineer working at both ends of the stack — distributed Java services in production at scale, and BIOS firmware on real silicon.

Today I'm a BIOS Developer at Light & Wonder in Las Vegas. I'm migrating a gaming-platform BIOS from legacy GRUB to UEFI on EDK2, building the Windows boot-loader integration with in-firmware BitLocker key encryption, implementing the DRM stack that prevents EGM dongles from being cloned or reverse-engineered, and designing the OS-level multithreaded contract that lets games negotiate resources with the platform.

Before that I shipped HIPAA-compliant healthcare platforms at UnitedHealth Group serving 200K+ members on Kafka pipelines with sub-0.5s replication latency, led cloud-native microservices migrations at L&T Infotech, and co-built a hyperlocal delivery startup that put three Flutter apps live on the Google Play Store.

The toolkit ranges from C, C++, and UEFI/EDK2 through Java, Spring Boot, Kafka, and PostgreSQL — but the through-line is the same: systems that have to work, on real hardware, at real scale, without paging anyone at 3 a.m.

02Experience

From healthcare platforms to gaming firmware.

A path that taught me to design for trust and ship for outcomes.

2026 → Present
Light & Wonder
BIOS Developer
Las Vegas, NV
- ↳Migrating the gaming-platform BIOS from a legacy GRUB-based stack to UEFI on the EDK2 framework — modernizing the boot path for secure boot, signed firmware, and the broader UEFI tooling ecosystem.
- ↳Building Windows boot-loader integration into the BIOS, including in-firmware encryption of the BitLocker (.bek) key during boot so the recovery key is never exposed in plaintext on the boot path.
- ↳Implementing the DRM stack for Electronic Gaming Machines (EGMs): firmware-side licensing code, application-layer security protocols, and anti-tamper defenses that prevent DRM-dongle cloning, replay attacks, and reverse engineering.
- ↳Designing the OS platform's multithreaded communication layer for the in-house Game Development Kit — the contract through which game code requests CPU, memory, and peripheral resources from the OS.
- ↳Wrote the NVRAM driver and its virtualization shim so NVRAM-backed game state behaves identically on bare-metal hardware and inside QEMU/VMware VMs — the same VMs I rely on daily for firmware bring-up, regression testing, and field-issue reproduction.
- C
- C++
- UEFI / EDK2
- GRUB
- Windows Boot Loader
- BitLocker
- VMware
- QEMU
- NVRAM Drivers
- DRM / Anti-Tamper
- Firmware
- Embedded Systems
Jan 2022 → Aug 2024
UnitedHealth Group
Software Engineer
Noida, India
- ↳Architected and executed a zero-downtime migration of 15 legacy databases into a unified PostgreSQL platform under Agile practices, with a fault-tolerant migration framework: automated rollback, schema mapping, continuous monitoring.
- ↳Implemented real-time, Kafka-based synchronization pipelines achieving sub-0.5s replication latency for millions of records across auth, alert, and contact datasets, with Java services for data validation and integrity.
- ↳Consolidated legacy healthcare systems into a cloud-native microservices platform serving 200K+ members with projected $1.4M annual cost savings and 99.9% uptime.
- ↳Delivered HIPAA-compliant full-stack features: provider search on Elasticsearch (sub-200ms P99 across 500K+ records), real-time SMS, announcement dashboards — Angular, GraphQL, Spring Boot, PostgreSQL.
- ↳Built event-driven observability platform on Splunk, Grafana, and Snowflake, reducing mean-time-to-detection by 40%.
- ↳Led Kafka migration from Azure Event Hubs to GCP (50+ topics, 4M+ events/day); optimized Spring Boot APIs by +35%. Earned a Bravo Award and 5-star performance rating.
- Java
- Spring Boot
- Kafka
- PostgreSQL
- Angular
- GraphQL
- Elasticsearch
- GCP
- Snowflake
- Splunk
- Grafana
Jul 2021 → Jan 2022
Larsen & Toubro Infotech
Senior Software Engineer
Navi Mumbai, India
- ↳Developed and deployed cloud-native microservices on AWS and Kubernetes, containerizing legacy components to cut deployment time by 40%.
- ↳Built REST APIs with Spring Boot and Node.js for clean data exchange across client apps and third-party integrations.
- ↳Set up CI/CD pipelines on Jenkins + Docker, automating tests and production rollouts to improve release reliability.
- AWS
- Kubernetes
- Spring Boot
- Node.js
- Jenkins
- Docker
Jan 2021 → Jul 2021
Grojha
Software Engineer
Kolkata, India
- ↳Designed and shipped end-to-end architecture for a hyperlocal delivery platform from 0 to 1 — three Flutter apps (customer, vendor, delivery runner) and a Firebase-backed admin dashboard, all driven from a single shared codebase with per-target package IDs.
- ↳Built the full order lifecycle as a Firebase Realtime Database state machine — place → vendor-accept → modify (with customer re-confirmation) → dispatch → pickup → deliver/cancel — with FCM push notifications driving every transition in real time across all three apps.
- ↳Implemented the customer-side flows on Firebase: phone-OTP login, profile completion, shop and product search, cart management, image upload (picker + cropper) for vendor catalogs, Firebase Dynamic Links for shareable products, and cached image delivery for low-bandwidth users.
- ↳Wired Provider for app-wide state, get_it for service location, and FCM + flutter_local_notifications for foreground/background push delivery — so the order state stayed consistent whether the user was in the app, on the lock screen, or returning days later.
- ↳Onboarded 30+ local shops and 100+ active customers, processing 500+ deliveries within the first three months post-launch — Grojha (customer) and Grojha Retails (vendor) both went live on the Google Play Store and remain listed, with in-app update prompts to keep users on the latest build.
- ↳Co-built the startup during the COVID-19 lockdown — owned engineering, release management, vendor onboarding tooling, and Play Console deployment end-to-end.
- Flutter
- Dart
- Firebase Auth
- Firebase Realtime DB
- Cloud Storage
- FCM
- Dynamic Links
- Provider
- Android
- Play Console