Abstract image for Software Development

Software Development

Delivering secure, compliant, and cutting-edge software solutions

Mission-critical software failures aren’t just expensive, they’re catastrophic. When security systems, medical devices, or space equipment fail, lives are at stake and missions collapse.


The Plextek advantage

Your solution, our expertise

We partner with you to combine agile innovation with rigorous systems engineering, developing mission-critical software tailored to your needs in healthtech, space, communications, IoT and more. Our end-to-end expertise ensures we deliver robust, compliant, and future-proof solutions on your behalf – from concept to deployment that fit your specific goals.

Precision Requirements Engineering
  • Audited to meet ISO 13485 for the design and manufacture of your medical devices
  • Robust ISO 9001 Quality Management System
  • Traceability management tailored to your compliance needs
Safety-critical and secure coding
  • MISRA-C (Motor Industry Software Reliability Association) compliance ensures automotive-grade code safety for your critical systems
Machine Learning (ML)
  • At the edge intelligence – AI processing directly on devices rather than in the cloud, enabling real-time decisions for your applications without network dependency
  • Intelligent information extraction – turning your high volumes of raw data into actionable and manageable information
Experts at low-SWAP
  • Low-SWAP (Size, Weight, And Power) embedded systems – essential for your space and portable defence applications where every gram and Watt matters to your mission success
High performance computing
  • CUDA (Compute Unified Device Architecture) enables GPU-accelerated processing for your computationally intensive applications like real-time signal analysis in an energy efficient fashion.
Secure communications and cryptography
  • Ensuring your private communications remain private
Continuous Integration (CI) and Testing
  • Automated testing and deployment pipelines that catch defects early, reducing your development costs and delivery risk
Systems and physics modelling
  • MATLAB, Python – industry standard tools for numerical applied to your specific challenges computing
Broad experience
  • Wide experience to able to pick the appropriate tools for the job: C/C++/Rust/Python/VHDL – or even assembler when that is required for your application

Real-world challenges

Marine Tracker

Coastal security and safety tracking unit requiring robust software that operates reliably without maintenance for extended periods in harsh marine conditions.

The system needed secure communications and fail-safe operation to ensure continuous monitoring capability.

Automated Manufacturing Systems

Software solution for battery-powered sensors in sterile healthcare facilities that analyses operational data to predict when equipment parts will fail.

This enables maintenance teams to replace components before breakdowns occur, reducing costly downtime.

Satellite-based Radar

Space-grade software development following strict quality and safety standards required for satellite missions.

The software must function flawlessly in space where repairs are impossible, demanding rigorous testing and verification processes.


What sets us apart when it comes to Software Development?

Software Development
  • Deep domain expertise in communications, radar and signal processing, smart IoT systems and AI/ML. Over 35 years, Plextek has steadily expanded its experience, keeping to the forefront of rapidly changing technology.
  • Full in-house capabilities with RF testing, electronics design and prototyping, system software and firmware development performed by cross-disciplinary teams in one location. Unlike many “software-only” development companies, the tight coupling of hardware and software enables Plextek to produce better engineered systems.
  • Strong track record of providing systems meeting the requirements of the most strenuous markets: security, medtech, and space. We’re used to working with customers who require strong compliance with comprehensive quality standards.

Our ISO 9001 compliant approach combines three decades of high-integrity software development with in-house laboratory and RF testing facilities, enabling seamless hardware-software integration while maintaining rigorous quality standards from defence radar systems to medical diagnostic tools.

After more than three decades in mission-critical software development, I’ve seen too many projects fail because teams treated software as an afterthought to hardware design. At Plextek, we engineer software and hardware as integrated systems from day one. This co-design approach doesn’t just reduce risk: it unlocks performance capabilities that single-discipline teams simply can’t achieve.

Dr Peter Debenham, Senior Consultant
Dr Peter Debenham

Senior Consultant


  • Compliance-ready development:

    Our ISO 9001/13485 certified processes ensure your software meets regulatory requirements from day one, eliminating costly certification delays.

  • Mission-critical reliability:

    Zero-failure software for environments where ‘reboot’ isn’t an option – from radar systems tracking threats to medical devices saving lives.

  • Integrated engineering:

    Hardware-software co-design eliminates integration risks that plague multi-vendor approaches, delivering optimised performance and faster deployment.

Talk to our experts

Talk to our experts

Ready to eliminate software risk from your next mission-critical project? Our software architects are standing by to discuss your specific requirements and compliance needs.

Addressing the Escalation in GNSS Spoofing with Data Fusion
Addressing the Escalation in GNSS Spoofing with Data Fusion

Plextek's data fusion technology helps maritime vessels maintain navigation accuracy during increasing GNSS spoofing attacks.

5G/6G and Satellites Global Connectivity Revolution
5G/6G and Satellites: Global Connectivity Revolution

Exploring how the integration of 5G/6G technologies with satellite networks is transforming global connectivity through Non-Terrestrial Networks and Direct-to-Device communication.

Yocto or PetaLinux
Yocto or PetaLinux?

Our comprehensive comparison of PetaLinux and Yocto, focusing on system requirements, build engines, and build outputs for developing embedded systems.

Kevin Cobley discussing 5G and the role of Non-Terrestrial Networks
The Future of Connectivity: 5G, 6G, and Space-Based Networks

As industries push the boundaries of global connectivity, the integration of 5G and drive towards 6G with satellite and space-based networks is unlocking new opportunities. Kevin Cobley, an expert in this evolving field, shares his insights on the challenges and innovations shaping the future of non-terrestrial networks (NTN).

Enhancing communication and safety in mining: the role of custom RF system design

We explore the role of custom RF system design in communication and safety within the mining industry, ensuring robust data handling and operational efficiency in challenging conditions.

Evolving silicon choices in the AI age
Evolving silicon choices in the AI age

How do you choose? We explore the complexities and evolution of processing silicon choices in the AI era, from CPUs and GPUs to the rise of TPUs and NPUs for efficient artificial intelligence model implementation.

A visual representation of: A Programmer's Introduction to Processing Imaging Radar Data
A Programmer’s Introduction to Processing Imaging Radar Data

A practical guide for programmers on processing imaging radar data, featuring example Python code and a detailed exploration of a millimetre-wave radar's data processing pipeline.

A visual representation of: AI Gesture Control
AI Gesture Control

Exploring the possibilities of AI gesture control for household appliances and more, using privacy-preserving radar technology, underscoring innovation in smart home interactions.

A visual representation of: Repurposing Innovation Bullet Proof Your Wine
Repurposing Innovation: Bullet Proof Your Wine

Repurposing military-grade technology to safeguard fine wines, ensuring their pristine condition from bottling to cellar.

A visual representation of: Of mice and ships
Calculating Error: What do a brain and a ship have in common?

Analysing the commonalities between brain function and ship steering through error correction methods, highlighting the indispensable role of calculus in both biological and engineered control systems.