Embedded + backend
Software ranging from firmware and hardware interfaces to Python services and APIs
FROM FIRMWARE TO BACKEND
Where hardware
meets software
- Senior Embedded & Systems Integration Developer
- C/C++, Python, Linux & Industrial IoT
I have a passion for technical systems where software meets hardware. I build reliable solutions that connect devices, industrial protocols and applications, from firmware and hardware interfaces to Python services, Linux systems and APIs.
Device to platform
MQTT, Modbus and REST APIs connecting devices, services and applications
Mission-critical experience
Experience in maritime, defence, telecom and industrial systems
Pragmatic architecture
Clear interfaces and reliable software that remains easy to maintain
About
Passion for building and improving.
I have a passion for building and improving technical systems, especially where software meets hardware. As an embedded software and systems integration developer, I help companies build reliable solutions that connect devices, industrial protocols and applications, from firmware and hardware interfaces to Python backend services, Linux systems and APIs.
My experience ranges from 8051 firmware, VxWorks device drivers and maritime bridge systems to Python services for solar energy, OTA fleet management and industrial IoT. Whatever the technical layer, I focus on practical solutions that are clear, stable and easy to maintain.
Expertise
Embedded software & OTA
From low-level C/C++, device drivers and real-time systems to Zephyr/Nordic firmware, OTA update processes and fleet management software.
Industrial IoT & integration
Integration of inverters, batteries, sensor networks and industrial systems using MQTT, Modbus RTU/TCP and hardware-specific protocols.
Python backend & APIs
Python services, REST APIs and integration layers that connect devices with local applications, cloud platforms and other systems.
Linux & deployment
Linux services, Docker deployments, Raspberry Pi systems, CI/CD, monitoring and reliable software for long-term use.
Selected Projects
All projects
Featured case
Inverter Abstraction Layer
Developed an inverter abstraction layer for multi-brand solar inverter connectivity, running on the SunBerry.
Smart Home EMS
My custom-built Smart Home Energy Management System for solar power, battery storage, water heating, EV charging and flexible loads.
Secure HawkBit OTA System
Complete, secure End-to-End OTA update system with HawkBit, including target updater, OTA manager, custom build system for OTA packages and a device fleet simulator.
Universal Low-Power LoRa Sensor
A self-designed and built LoRa sensor: an ultra-low-power, long-range sensing and control board that can run for years on battery power, and programmable like a typical Arduino-based system.
Experience
From 8051 firmware in 1989 to Python backend services, OTA fleet tooling and industrial IoT in 2026: the same focus on reliable technical systems.
Senior Embedded & Systems Integration Developer
Embedded software, Python services and integration tools for devices, industrial protocols and Linux platforms, with a strong focus on reliable and maintainable implementations.
Details
- Builds backend systems, integration tools and web-based analysis services focused on reliability, clear APIs and maintainable implementation.
- Built SiteScore, a live analysis platform for performance, redirects, security headers, social previews and website quality.
- Designed SiteScore with a privacy-first approach: scan results are held in memory temporarily and are not stored persistently.
- Added developer-tool access using API keys and rate limiting.
- Built a currency exchange tracker with a modern Python API structure, external APIs, SQLite history, scheduled background jobs and REST chart endpoints.
- Continues to work close to hardware and technical systems, including Linux, MQTT, Modbus, automation and industrial/IoT integration.
Senior Software Developer
Python software for solar energy, OTA fleet management, batteries, Modbus, MQTT, Docker, Raspberry Pi and HawkBit.
Details
- Worked on Python-based industrial software for solar energy systems, OTA fleet management, battery integration and cloud-connected energy simulation.
- Designed and implemented a modular Python inverter abstraction layer for multi-brand solar inverter connectivity.
- Used async Python for Modbus communication with inverters and related devices.
- Built Linux services that read and write Modbus data and communicate via MQTT with higher-level REST APIs.
- Deployed software on Dockerized Raspberry Pi systems using MQTT and Modbus RTU communication.
- Built Python components around Eclipse HawkBit: management service, updater service, REST API integration and target simulator.
- Implemented Python integration with 5 x 1 MWh Solax battery packs for remote monitoring and control.
- Created project templates with GitLab CI, Tox, Docker support, pytest, flake8, pylint and Ruff.
- Also worked on ultra-low-power BLE beacon firmware on Nordic hardware using Zephyr RTOS.
Owner / Software Developer / Linux Systems Engineer
Software development, Linux systems engineering, REST APIs, monitoring, MQTT integrations and local-first automation.
Details
- Provided software development, Linux systems engineering and technical consultancy for small businesses and technical environments.
- Designed and built software systems primarily on Linux using Python and C.
- Built REST APIs, monitoring services, MQTT-based integrations and local-first automation systems.
- Designed reliable Linux infrastructure including VPNs, file servers, backup servers, email systems, VoIP, wireless networking and offsite backups.
- Often took full ownership from design to deployment and support.
- Focused on practical, maintainable and reliable solutions with long-term operational value.
Software Architect
Maritime navigation software, ECDIS, C/C++, Linux infrastructure, redundant bridge systems and team leadership.
Details
- Worked on maritime navigation and automation systems for dredgers, naval ships and luxury yachts.
- Led development of a complex Electronic Chart Display and Information System for ship bridges.
- Worked on C/C++ maritime software involving electronic charts, vessel navigation, AIS targets and chart-based overlays.
- Served as team lead for 4 to 9 developers on a large C/C++ codebase.
- Acted as Linux specialist for redundant server and network infrastructure supporting high-uptime bridge systems.
- Worked in an environment where reliability, operational safety and clear system architecture were essential.
System Analyst / Technical Specialist
Enterprise telecom software, ADSL order processing, messaging, data flows and high-volume billing data.
Details
- Worked in international teams on enterprise telecom software and backend/data-processing systems.
- Contributed to automation of the ADSL order processing pipeline using TIBCO.
- Developed data-processing software for high-volume telecom billing data.
- Gained experience with enterprise integration, messaging, data flows and production-critical systems.
Firmware & Software Engineer
Low-level C, VxWorks, device drivers and BSPs for Link 11 tactical data communication systems.
Details
- Worked on Link 11, a tactical data communication system used by NATO fleets.
- Focused on low-level C development for embedded real-time systems.
- Developed device drivers and Board Support Packages to enable VxWorks on custom modem boards.
- Worked on distributed tactical communication based on nearby vessel sensor data, including tracking radar information.
- Gained experience in a mission-critical defence environment where reliability, correctness and system-level understanding were essential.
Product Designer
Embedded firmware on 8051, C/Assembly/PLM, hardware prototyping, PCB routing, EMC and field validation.
Details
- Joined Adesys in its early startup phase and worked in a small engineering team on control and alerting systems.
- Developed embedded software and firmware in C, Assembly and PLM for Intel 8051 microcontrollers.
- Contributed to hardware prototyping, PCB layout, EMC testing and field validation.
- Worked across the full development lifecycle: concept, implementation, testing, production and customer deployment.
- Gained early experience taking technical responsibility across both hardware and software in a small-team environment.
The best systems fade into the background.- Arjan Wooning
They just keep working.
Working on embedded software, device integration or industrial IoT?
I help teams with firmware, Python services, industrial protocols, Linux systems and software that connects devices with applications and platforms.
No obligations, just practical thinking.