Available for new projects
Embedded · Cloud · AI Agents

Ship products that hold up in production — from device to cloud to AI.

I help product teams turn flaky systems into reliable ones — stabilizing embedded firmware, hardening cloud backends, and adding AI agents that actually work in front of real users.

10+ Years shipping production systems
20+ Products launched & stabilized
80% Avg drop in field crashes
Bhupinderjeet Singh

Bhupinderjeet Singh

Production Systems Consultant

Reliable Firmware
Cloud Backends
AI Agents
Launch-Ready
The problem

It works in the demo. It breaks in production.

Firmware in the field, APIs under load, AI agents in front of real users — the same pattern keeps repeating. The demo is great. Production is fragile. The launch slips.

Firmware crashes in production

Devices reset, watchdogs fire, and you can't reproduce it on the bench.

Memory leaks & instability

Heap shrinks, fragmentation grows, devices die after 24–72 hours of uptime.

OTA updates that brick devices

Partial flashes, signature mismatches, rollback loops — and field recalls.

Wi-Fi & MQTT connectivity issues

Drops, reconnect storms, broker disconnects, and silent data loss in the cloud.

Cloud backends that drop data

APIs time out, queues back up, dashboards lag — and nobody can tell if it's the device or the cloud.

AI features that aren't production-ready

Demos impress. Real users hit edge cases, the agent hallucinates, costs spike, and trust erodes.

Launch deadlines slipping

"Almost ready" has been true for three months. Every sprint adds bugs faster than it removes them.

What you get

Outcomes, not hours.

I embed with your team, find the real root cause, and leave you with a system that ships — plus the documentation and tests to keep it that way.

01

Stop production crashes

Devices stay up for weeks, not hours. Crashes, watchdog resets, and field returns drop to a level your support team can actually handle.

02

Make hardware behave under real load

Stable connectivity, predictable timing, and a memory profile that survives 24/7 — instead of falling apart after the first soak test.

03

Ship without bricking devices

Safe OTA, secure boot, and a real recovery path so updates become routine instead of the most terrifying day of the quarter.

04

A codebase your team can maintain

A cleaner architecture, written tests, and clear docs — so your engineers can keep shipping after I'm gone.

05

Cloud backends that don't drop data

APIs and AWS IoT pipelines that scale with your fleet, recover from outages on their own, and don't surprise you with the bill.

06

AI agents users can actually trust

Focused agents with clear tools, guardrails, and evals — so the answers are right, the costs are bounded, and your team isn't babysitting the model.

Proof

Recent results

A few examples of stabilization work for IoT and hardware teams.

ESP32 · FreeRTOS · Memory

Reduced ESP32 crashes by 80% by fixing memory handling and task scheduling

Problem

Devices were rebooting daily in the field. Heap shrank over time and the watchdog tripped under MQTT load.

What I did

Profiled heap and stack usage, fixed a handful of leaks, restructured FreeRTOS task priorities, and replaced ad-hoc buffers with bounded queues.

Result

~80% fewer crashes and 7+ days of continuous uptime under full load. Launch unblocked.

ESP32 · OTA · AWS IoT

Made OTA updates safe across a fleet of cloud-connected devices

Problem

Roughly 1 in 50 devices bricked during OTA. No rollback path, no integrity checks, support tickets piling up.

What I did

Implemented dual-bank OTA with signed images, atomic boot-flag handling, and automatic rollback on first-boot failure.

Result

Zero bricked units across the next rollout. Field updates became a routine, not a risk.

Wi-Fi · MQTT · Connectivity

Stopped MQTT reconnect storms taking down the cloud backend

Problem

When Wi-Fi flapped, hundreds of ESP32 devices reconnected at once and overwhelmed the MQTT broker, causing data loss.

What I did

Added jittered exponential backoff, persistent sessions, QoS tuning, and a local message buffer to survive outages gracefully.

Result

No more reconnect storms and zero telemetry loss during network events. Backend cost dropped too.

Services

Three ways to work together

Fixed scope. Fixed timeline. A specific outcome by the end — not a stack of hours.

1 week

Pre-Launch Audit

A fast, deep review of your firmware, backend, or AI agent — so you know what will break in production before your customers do.

  • Architecture & reliability review
  • Failure-mode & risk analysis
  • Security & recovery-path check
  • Ranked, written action plan
For Teams nearing launch
Outcome A ranked plan you can act on Monday
Start an audit
2–6 weeks

Connected Product Buildout

Wire your device to a real backend — and, if you want, an AI agent on top — so customers see one product, not a stack of half-finished pieces.

  • Firmware ↔ cloud integration
  • APIs, auth, telemetry & OTA pipeline
  • Optional AI agent on your data
  • Monitoring so you see issues first
For Teams shipping a connected product
Outcome One product, end to end
Start a build
Bhupinderjeet Singh
About

Hi, I'm Bhupinderjeet. I make products work in production.

I've spent 10+ years shipping embedded products: ESP32, STM32, Nordic nRF52, FreeRTOS and bare-metal firmware, BLE, Wi-Fi, MQTT, and OTA pipelines on AWS IoT.

Beyond firmware, I also build the web services (Lambda, API Gateway, DynamoDB) and AI agents (LLM tool-use, retrieval, automation) that sit on top of device data — so the whole stack, from MCU to cloud to user, actually works together.

I focus on the messy part — the bugs that only appear in the field, the OTA flow nobody trusts, the memory leak that takes a week to surface. I work directly with your engineers, fix the real issues, and document what changed so your team owns the result.

  • 10+ years in embedded & IoT
  • Real production systems, not prototypes
  • Deep ESP32, FreeRTOS, BLE, MQTT, OTA
  • AWS web services & AI agents on top
  • Based in Canada, work with teams worldwide
Let's talk

Have an issue in your firmware, web backend, or AI agent? Let's fix it.

Book a free 45-minute call. Bring the problem — device, backend, agent, all of the above. I'll tell you straight whether I can help, and what it would actually take.

Google Meet 45 minutes Free, no pitch
Contact

Prefer email?

Tell me a bit about your project and the issue you're seeing. I read every message and reply personally, usually within 1 business day.

Cambridge, Ontario · Working with teams worldwide