Top Rated Plus on Upwork — Available for projects

Hi, I'm Nurkholish Ardi F.

7+ years. 60+ contracts. 11K+ hours billed. From custom PCBs and embedded firmware to CNC machine control, cross-platform desktop apps, mobile development on iOS & Android, full-stack web development (bilingual platforms welcome), enterprise security software, healthcare privacy tools, and IoT telemetry pipelines — I ship software that solves real problems for real customers, and then keeps on solving them. Trusted by Silicon Valley security startups, Saudi cold-chain operators, US industrial manufacturers, and product teams across continents. Top Rated Plus on Upwork · 100% Job Success · 5.0 across every review. Bring me your hardest project — I'll meet it in the middle and make it ship.

CC++C#VB.NETJavaKotlinFlutterPythonGoSwiftTypeScriptQt.NETWPFElectronOpenGLArduinoESP32STM32FreeRTOSReactFastAPISupabaseFirebaseVercelNginxTailwindAWSDockerLinuxPostgreSQLMongoDBRabbitMQTensorFlowOpenCVMQTTBLELoRaCAN BusModbusI²CSPIRS-232UARTTLSJWTWireGuardMapbox

See my work Contact Me Hire on Upwork
~/ardi — bash
$ whois ardi
roleSoftware & Embedded Developer
basedBoyolali, Indonesia (GMT+7)
shipped60+ projects · 11K+ hours
rating★★★★★ 5.0 (28 reviews)
statusavailable_for_hire
Top Rated Plus on Upwork
100% Job Success
ID-Verified Freelancer
7+ Years pro
60+ Projects shipped
11K+ Hours billed
5.0★ From 28 reviews

About

Hardware-to-software, end to end.

I help teams ship reliable software across the full stack — from microcontroller firmware and PCB layout, to cross-platform desktop apps, Android software, and modern web platforms.

Most of my work has been with industrial, research, and product teams — CNC machine control software, IoT and instrumentation, sensor pipelines, BLE/MQTT bridges, multi-channel visualization, and enterprise desktop clients engineers actually use day-to-day. I care about correctness, performance, and software that's pleasant to maintain.

I work as part of Hantechno agency on Upwork, with 11K+ hours logged and a 100% Job Success score across 60+ contracts.

Embedded & IoT Desktop Apps Android Web Platforms PCB Design
a

ardi

Software & Embedded Developer

  • 📍 Boyolali, Indonesia
  • 💼 Hantechno Agency · Top Rated Plus
  • 💵 $30 / hr · Open to projects
  • 🛠️ 7+ yrs · 60+ projects · 11K hrs
  • 🌐 Remote, worldwide
Hire on Upwork

Skills

A wide stack, sharpened by 11K hours.

From firmware bring-up to bilingual web admin panels — here's what I reach for.

⚡

Embedded & IoT

Firmware, sensor pipelines, BLE/MQTT systems, PCB design.

Arduino ESP32 / ESP8266 STM32 ARM / AVR MCU FreeRTOS Embedded Linux Yocto / Buildroot PlatformIO ESP-IDF MQTT BLE LoRa CAN Bus Modbus RS-232 / UART I²C / SPI USB KiCAD Eagle
🖥️

Desktop & Native

Cross-platform GUI apps, instrumentation, system tooling.

C C++ C# VB.NET Qt .NET WPF / WinForms WinUI 3 .NET MAUI Electron OpenGL CMake / Make Windows / Linux / macOS
📱

Mobile & Web

Android, iOS, and modern bilingual web platforms.

Android Java Kotlin Jetpack Compose Flutter Swift React TypeScript FastAPI PostgreSQL MongoDB Supabase Firebase Vercel Nginx Tailwind CSS
🛡️

Cloud, Networking & Security

Cloud infra, secure connectivity, reliable transport.

AWS Docker TCP/IP UDP TLS / mTLS OAuth 2.0 / OIDC JWT WireGuard OpenVPN
🤖

AI/ML & Tools

Modern AI pipelines plus the dev tools I reach for daily.

TensorFlow Hugging Face OpenAI / Anthropic OpenCV Python Go JavaScript Git MySQL / SQLite RabbitMQ JSON / YAML / XML GCC / GDB Valgrind Visual Studio

Selected work

A sample of what I've shipped.

Drawn from 60+ contracts. Many under NDA — these are highlights I can share.

🔥 Featured

Langmuir Systems — CNC Machine Control Software

Control software for Langmuir Systems' line of industrial machines — three products in one engineering effort. FireControl runs their CrossFire / CrossFire PRO / XR CNC plasma-cutting tables on Windows and macOS, with real-time motion, program visualization, and voltage-based torch-height control. BendControl drives the Titan 25T 25-ton CNC press brake — synchronized dual hydraulic rams, glass-scale encoders, conversational programming. CureControl powers the Vulcan 16 industrial powder-coat oven with a precision PID loop and custom cure profiles.

C++ Qt Windows / macOS CNC Motion PID Control Embedded C USB / Serial Touch UI
Read case study
🛡️ Featured

Hermes Network 360 Guard — Cross-Platform Security Client

Multi-platform security client for Hermes Networks Inc. (San Francisco). The Windows and macOS desktop apps unify SASE, RMM, and XDR — with MFA, SSO (Google / Microsoft / LinkedIn), live service controls per protection layer, and real-time connection state (IP, DNS, handshake). The iOS and Android mobile clients deliver the SASE layer for secure on-the-go access.

C++ .NET C# Windows / macOS iOS / Android SASE / RMM / XDR MFA / SSO VPN
Read case study
🩺

PHI Sanitizer — Healthcare De-identification

Software for Glendor that automatically redacts protected health information from medical images, pathology reports, video, photos, and audio — fully on-prem, no manual templates. ML / NLP / OCR / image-processing pipelines handle multimodal medical data while keeping clinical research workflows fast and HIPAA-friendly.

ML / NLP OCR Image Processing DICOM On-Prem HIPAA
Read case study
🌡️

Q Horizons Mapping — Cold-Chain Telemetry

Management system, sensor telemetry pipeline, and data visualizations for Quality Horizons' Mapping Division (Saudi Arabia / GCC). Powers thermal-mapping studies for cold-chain logistics — pharmaceutical storage, temperature-controlled supply chain, and SFDA / WHO / GSDP compliance reporting.

Sensor Telemetry Data Loggers Web Dashboard Thermal Mapping Hanwell SFDA / WHO / GSDP
Read case study
⚡

PLN — High-voltage Cubicle Wi-Fi Control

Embedded Wi-Fi controller for PLN (Indonesian state power utility) — replaces cabled HMI in electric substations to remove a real safety hazard near high-voltage gear. Custom 4-channel OPEN/CLOSE PCB, AVR firmware over Wi-Fi, web UI for substation operators.

Embedded C / C++ Arduino / AVR Wi-Fi Custom PCB JavaScript MCU Firmware
Read case study
🏃

Strider — IMU Running Activity Monitor

Foot-mounted device that records 3-axis accel, gyro, and magnetometer to SD card with millisecond precision (binary format), paired with a Linux desktop app showing live numerics, charts, gauges, and a 3D spatial-estimation display.

AVR Firmware 9-DoF IMU C++ Linux Desktop Real-time Charts 3D Visualization
🚗

Musaci — Vehicle GPS Tracker (Hardware + Android)

Compact GPS tracker with engine-stop relay, built around the SIM800L modem with GPRS → MQTT (AWS) data link. Paired Android app supervises multiple devices simultaneously with a Mapbox map view.

AVR Firmware SIM800L / GPRS MQTT AWS Android / Java Mapbox
⛏️

Borneo Coal-Mining GPS Tracker — Custom UHF Telemetry

GPS tracking and monitoring device with a custom UHF data-telemetry link for cellular signal-void environments along coal-mining hauling tracks in Borneo, Indonesia. Embedded firmware, custom-made FSK + TDM data transmission, and a control-room dashboard for fleet supervisors.

GPS UHF Radio Custom RF Telemetry Embedded C / C++ Custom PCB Industrial Tracking
👁️

Mall Footfall Counter — Embedded Computer Vision

Real-time visitor-counting system deployed across a shopping mall's entrances. An embedded-PC node runs OpenCV-based people detection and bidirectional tracking on multiple live camera feeds, then streams aggregated in/out metrics to a back-office dashboard that retail-operations teams use for staffing and tenant reporting.

OpenCV Computer Vision People Detection / Tracking Embedded PC Embedded Linux C++ / Python Multi-camera
🌐

TuwaiqTech.ai — Bilingual Corporate Site & Admin Panel

A bilingual corporate website paired with a custom admin panel for content management. End-to-end build: API, database schema, UI, and content workflows.

React TypeScript FastAPI PostgreSQL Tailwind CSS
📊

Multi-channel Sensor Visualization

A Qt desktop application visualizing live serial/sensor data across multiple channels for engineers and researchers.

C++ Qt Embedded Linux
📡

BLE ↔ Android Bridge

Connected a custom BLE device to a partner's Android app — debugging, GATT services, and reliable reconnection.

Bluetooth LE Android Java
🛡️

Open Source App Rebuilding & Rebranding

Take an open-source application from source code to a fully rebranded, redistributable product — fork, get it building cleanly, swap identifiers and assets, and produce signed installers ready to ship. Recent example: a native Windows VPN client rebuilt and rebranded end-to-end.

C++ .NET MSI Installer Code Signing Build Pipelines
🍲

Resep Nusantara — Indonesian Recipes App

Native Android app for authentic Indonesian cooking recipes — RESTful API plus a local-Excel-file fallback as the data source for offline recipe browsing.

Android Java Gradle RESTful API
and much more on Upwork

Reviews

What clients say.

5.0 average across 28 reviews on Upwork. Hover to pause.

★★★★★
"Excellent Work"
Arduino & MQTT integration · Jun 2024
★★★★★
"Project was well done and timely — we would retain again."
Mobile App Developer · May 2023
★★★★★
"Great support and work. We'll work together soon."
LabWindows CVI · Jul 2022
★★★★★
"Nurkholish is very skilled and easy to work with."
C Developer (quick project) · Jan 2022
★★★★★
"I highly recommend Nurkholish — he was able to create exactly what I wanted and went above and beyond with customer support."
Complete IoT Solution · Jan 2022
in
"Nurkholish Ardi Firdaus is someone who has a good personality in the world of work, especially in the IT Professional field. He is very talented with skill combination as IT Software Engineer. He also has a very professional work system — fast and capable of delivering the perfect finish."
Rian Alfarisy · LinkedIn recommendation
⚡ Verified
"Top Rated Plus on Upwork — 100% Job Success across 60+ contracts and 11K+ billed hours."
Verified Upwork profile · 5.0 / 28 reviews

Contact

Let's build something.

Have a hardware idea, a desktop app, an Android product, or a web platform that needs a careful pair of hands? My inbox is open.

Book a 20-min intro call