Engineer
Available for worldwide freelance

Daniyal
Javed Choudhary

Embedded Firmware & IoT Engineer based in Islamabad, Pakistan. I build systems that bridge hardware and cloud — from bare-metal ESP32/STM32 firmware to live IoT dashboards.
scroll
Daniyal Javed Choudhary
Daniyal Javed Choudhary
Embedded & IoT Engineer
● Open
about me

The engineer
behind the systems

I'm Daniyal Javed Choudhary — an Embedded Firmware & IoT Engineer from Islamabad, Pakistan, finishing my BS Electrical Engineering at PIEAS, graduating July 2026.

My work lives where hardware meets software. I write firmware that runs on microcontrollers, design communication layers over MQTT and LoRa, and build the dashboards that turn raw sensor data into business decisions — end to end, no hand-off gaps.

I've delivered production systems for international clients through Upwork and Fiverr — industrial telemetry, pool management systems, greenhouse automation. I care about clean architecture, honest communication, and systems that don't break at 3am.

1+
Years Freelancing
10+
Projects Shipped
5★
Fiverr Rating

Journey

BS Electrical Engineering — PIEAS, Islamabad
Final Year Project: Automated Batch Mixer (ESP32 + FreeRTOS industrial control)
2022 — Jul 2026
Freelance Embedded & IoT Engineer
Upwork · Fiverr — international client projects globally
2023 — Present
expertise

Technical
Arsenal

The complete stack I use to take a client idea from microcontroller to deployed cloud system — with no gaps.

Work with me →
01🔩
Embedded Firmware
ESP-IDFFreeRTOSSTM32 HALC/C++Arduino
02📡
IoT Connectivity & Protocols
MQTTLoRaBLEWi-FiHTTP/RESTModbus
03🖥️
Dashboards & Automation
Node-REDThingsBoardGrafanaInfluxDBMySQL
04☁️
Cloud & DevOps
AWS IoTAzure IoTDockerLinuxRaspberry Pi
05🔐
IoT Security
TLSAES-128Secure BooteFuseOAuth
06🔗
API & Flow Automation
REST APIWebhooksHubSpotGoogle SheetsJira
portfolio

Projects I've Shipped

Real systems. Real clients.
Production-grade, not demos.

🛰️
Client Project
Nova-SOC — LoRa Telemetry System

ESP32 + STM32L0 field nodes transmitting AES-128 encrypted sensor data over LoRa. VPS-hosted Node-RED + Mosquitto MQTT, InfluxDB storage, and live dashboards for remote industrial monitoring.

ESP32STM32L0LoRaMQTTAES-128InfluxDB
🏊
Client Project
SmartVac+ / LinerVac — Pool Management IoT

Raspberry Pi 5 running Dockerised Node-RED for automated commercial pool equipment control. Remote scheduling, multi-zone sensor monitoring, alerting, and full Embedded Linux deployment.

Raspberry Pi 5DockerNode-REDMQTTLinux
🌿
Client Project
Greenhouse Automation — Multi-Zone Climate Control

Node-RED Dashboard 2.0 controlling HVAC, irrigation, and lighting across multiple greenhouse zones. MQTT-driven thresholds, manual overrides, InfluxDB logging, and Grafana analytics.

Node-REDDashboard 2.0MQTTGrafanaInfluxDB
Open Source
Smart Energy Meter

Real-time energy monitoring with CT sensors, ESP32 firmware, and live Grafana dashboard. Per-circuit power tracking, anomaly alerting, and historical trend analysis via InfluxDB.

ESP32GrafanaInfluxDBMQTTCT Sensors
services

What I can
build for you

Available for freelance contracts, fixed-price gigs, and long-term partnerships. Based in Islamabad — async-friendly with clients everywhere.

↓ Download My Resume
📟
Firmware Development

Custom ESP32 / STM32 firmware. FreeRTOS task design, peripheral drivers, OTA updates, low-power optimization and state machine architecture.

🌐
End-to-End IoT Systems

Complete hardware-to-cloud delivery. Firmware, MQTT backend, cloud integration, and live dashboard — one engineer, zero hand-off gaps.

📊
IoT Dashboard & Data Pipelines

Node-RED, ThingsBoard, Grafana. Real-time visualization, multi-device aggregation, alerting and time-series storage with InfluxDB.

🔗
API & Automation Flows

Node-RED flows integrating REST APIs, webhooks and CRMs — HubSpot, Jira, Google Sheets. Business automation for IoT data pipelines.

🔒
IoT Security Hardening

TLS, secure BLE/SoftAP provisioning, AES encryption, eFuse locking, secure boot, and signed OTA update pipelines.

Let's build
something real
together

Got a hardware project, IoT system, or automation challenge? I respond within 4 hours.