Custom Embedded Software for IoT and Connected Devices

Firmware and Embedded Systems Development in the UK

Ignitec provides custom firmware and embedded software development for connected devices and IoT systems. From early prototypes to certified production firmware, we deliver robust, efficient, and scalable embedded solutions that bring your hardware to life and keep it connected, compliant, and future-ready.

ISO9001 certified firmware development since 2013

Talk directly to a UK-based firmware engineer about your project. Whether you need bare-metal development on STM32 or ESP32, RTOS integration, or Linux-based embedded systems, we’ll help you define the right technical approach and compliance pathway. Get expert guidance before you commit to development.

Book a free consultation

Talk to our electronic design engineers today – book your free consultation.


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    UK-based firmware engineering with full lifecycle support

    Ignitec’s UK-based embedded software engineers design and develop firmware for STM32, ESP32, Nordic, and other leading microcontroller platforms. We work across RTOS, Linux, and bare-metal environments using C and C++, delivering reliable, production-ready code for defence, medical, aerospace, industrial, energy, and automotive applications. With all development handled in-house in the UK, clients benefit from transparent communication, rapid turnaround, and total quality control from concept to certification.

    Embedded Firmware Design:
    High-performance, low-power firmware tailored to your hardware platform and use case.

    Board Bring-Up & Debugging:
    End-to-end support from prototype testing to reliable field deployment.

    Connectivity & IoT Integration:
    Wireless protocols, networking stacks, and cloud connectivity for smart, data-driven devices.

    Certification & Compliance:
    Assistance with EMC, radio, safety, and functional compliance across global markets.

    What our clients say about working with us

    • Ignitec assisted us in taking a prototype through the design phase to manufacturing. Their expertise in electrical design was evident, and the communication through collaborative tools was excellent, effectively bringing... read more

      Alex Tweed Avatar Alex Tweed
      10th October 2025

      I would like to express my sincere gratitude to the team at Ignitec for the invaluable support they have provided—not only to me personally but also to the Somerset Sight... read more

      Tim Cullen Avatar Tim Cullen
      11th September 2025

      So we have been more than happy with James’s work. There was not a question that he couldn’t answer. a very experienced man worth every penny. I would definitely Recommend... read more

      Elliott Spokes Avatar Elliott Spokes
      29th August 2025

      Thank you James and Ignitec for the great work on our project! Communication and planning was brilliant to name a few of the great aspects working with you! Will definitely be... read more

      Kadir Acik Avatar Kadir Acik
      28th August 2025
    • Very professional and friendly consultation

      Bh 11 Avatar Bh 11
      24th July 2025

      ⭐️⭐️⭐️⭐️⭐️ We worked with this product design company to to help take our project to the next level, and the experience was exceptional from start to finish. They truly understood our... read more

      Darryl Samuel Avatar Darryl Samuel
      21st July 2025

      I've had the absolute pleasure of working with Ignitec in Bristol for both mechanical and electrical design and development, and I genuinely can't recommend them highly enough. From the outset,... read more

      simon Sixsmith Avatar simon Sixsmith
      9th July 2025

      An outstanding mechatronics consulting firm—proactive, provides excellent service, and is highly recommended.

      Law Samuel Avatar Law Samuel
      4th June 2025
    • Ignitec has consistently exceeded expectations with the services they've delivered. The quality of their work has been outstanding, and their communication throughout every stage of development has been exceptional. Their dedication... read more

      Marcus Parker Avatar Marcus Parker
      3rd June 2025

      Ignitec's friendly, professional team delivered our project on time despite a tight deadline and provided great support throughout. Highly recommended!

      L&Ts Avatar L&Ts
      8th May 2025

      Great people, excellent knowledge

      Ben Bright Avatar Ben Bright
      28th February 2025

      James, Ben and everyone at Ignitec are great to work with. Super helpful, great communication, and a nice easy development process. Highly recommended!

      Ian Stevens Avatar Ian Stevens
      24th February 2025

    Book a free consultation

    Talk to our electronic design engineers today – book your free consultation

    Work directly with our UK firmware engineers

    Our UK-based embedded software and firmware engineers work with clients across industries including defence, medical, energy, and industrial IoT. Every embedded systems project is managed in close collaboration, with clear communication, shared progress tracking, and full visibility from concept to certification. By keeping all firmware development in the UK, we ensure faster response times, tighter quality control, and seamless coordination between hardware, firmware, and compliance teams.

    UK-Based Team:

    Work directly with our skilled embedded engineers every step of the way.

    Fast Turnaround:

    Rapid development cycles and streamlined testing accelerate your time to market.

    Deep Expertise:

    Expertise across ARM, STM32, ESP32, Nordic, and Microchip and many other platforms.

    Trusted & 5-Star Rated:

    Proven record of reliability, quality, and clear communication with global clients.

    Explore how our clients succeed with our firmware design services

     

    West technology forensics Forensic autorotator

    Controller for subsea exploration designed and delivered in low-volume batches on a fast turnaround.

    CASE STUDY | Marine, Subsea, Energy

    MESH GLOBAL

    DigitalMe

    Custom water level sensor for monitoring arctic glacial melt to support world-class research institution.

    CASE STUDY | Marine, Monitoring

    AARHUS UNIVERSITY

    DigitalMe

    Custom firmware for multi-mode NFC reader/writer supporting encrypted ticketing and tag emulation.

    CASE STUDY | IoT, Wireless

    SMART IMPACT

    Our development processes are fully ISO 9001 certified, ensuring consistency, traceability, and reliability at every stage of your project.

    Expert solutions for highly regulated industries

    Aerospace

    Hazardous locations

    Automotive

    Defence

    Medical

    Energy

    IoT

    Subsea

    Trusted by global leaders to deliver world-class electronic design

    Book your free firmware consultation

    Talk to an expert about your embedded or IoT software requirements today. Our UK-based team can review your existing designs, advise on architecture, and guide you through the next phase of development.

    IMG 3362 (1)

     Frequently Asked Questions about our firmware and embedded systems design services

    Will you sign an Non-Disclosure Agreement (NDA)?

    Yes, Book a Free Consultation with us and we will send you a signed, legally binding NDA before the call. You may also send us your own NDA for signing once you have booked the consultation.

    What is embedded firmware development?

    Embedded firmware is software designed to control specific hardware devices. It runs directly on a microcontroller or processor and enables your product to perform its intended functions reliably and efficiently.

    Which processors and architectures do you work with?

    We develop on ARM Cortex (M, A, R series), STM32, ESP32, Microchip PIC, Nordic nRF52/nRF53, NXP, and many others. We can also support custom architectures and Linux-based embedded systems.

    Do you develop both bare-metal and RTOS-based systems?

    Yes. We write firmware for both bare-metal (no operating system) and RTOS environments such as FreeRTOS, Zephyr, or ThreadX, depending on performance and complexity requirements.

    Can you help modernise or refactor existing firmware?

    Absolutely. We often update legacy codebases to improve performance, security, maintainability, and support for newer hardware.

    Can you integrate wireless connectivity into my product?

    Yes. We handle BLE, Wi-Fi, LoRa, LTE, Zigbee, Thread, NFC, GPS, and other communication protocols, along with secure over-the-air (OTA) updates and cloud integration.

    Do you develop device drivers or low-level interfaces?

    Yes. We create and test custom drivers for sensors, displays, radios, power management ICs, and other peripherals.

    Do you also design the hardware or just the firmware?

    We do both. Our firmware engineers work closely with our in-house electronics team to ensure hardware and software are perfectly aligned from the start.

    Can you help with product compliance and testing?

    Yes. We assist with EMC, radio, and safety testing by preparing test firmware, coordinating with test houses, and implementing any necessary firmware-level adjustments.

    What programming languages do you use?

    Primarily C and C++, with Python, C#, and Rust used for tools, testing frameworks, and some higher-level embedded systems.

    Can you provide cloud integration and data visualisation?

    Yes. We can connect devices securely to IoT platforms such as AWS IoT, Azure IoT Hub, or custom dashboards via MQTT, HTTPS, or WebSockets.

    Do you offer long-term support or maintenance?

    Yes. We provide ongoing maintenance, bug fixes, performance enhancements, and updates to support evolving standards and hardware changes.

    How do you ensure firmware reliability and safety?

    Through structured code reviews, static analysis, version control, and rigorous hardware-in-the-loop (HIL) and simulation testing.

    Can you work with our internal development team?

    Yes. We often collaborate with client engineering teams to accelerate delivery, provide specialist expertise, or handle complete submodules.

    What is your development process?

    Projects typically progress through concept, architecture, development, testing, integration, and validation. We follow structured project management with full documentation.

    How do you manage security in embedded devices?

    We implement secure bootloaders, encrypted communication, authentication protocols, and OTA update validation to protect devices against tampering and cyber threats.

    What industries do you specialise in?

    We work across defence, energy, industrial, medical, and environmental sectors where reliability, safety, and compliance are essential.

    What industries do you specialise in?

    We work across defence, energy, industrial, medical, and environmental sectors where reliability, safety, and compliance are essential.

    Do you handle small projects or prototypes?

    Yes. We support both proof-of-concept prototypes and full-scale commercial production systems.

    How quickly can you start?

    In most cases, we can begin within 1–2 weeks following a consultation and signed NDA.

    Can you provide documentation and source code ownership?

    Yes. You retain full ownership of the developed firmware and all associated documentation as defined in your project agreement.

    Still have questions?

    Book a call with one of our firmware engineering team. We will send you a signed NDA and an invitation to book a free consultation.