Avanti Recruitment

Software/Firmware Engineer Kent Defence Technology C# / Embedded Systems An innovative engineering company working within the defence and electro-optical technology sector is seeking a Software/Firmware Engineer to join its growing engineering team. This is an opportunity to work on highly technical, real-world products within a multidisciplinary engineering environment, contributing across the full software development lifecycle from concept through to testing and deployment. The role would suit a software engineer who enjoys working close to hardware, embedded systems, and technically challenging engineering projects rather than purely commercial software products. The Role You will be involved in: Software and firmware development for specialist engineering products Working closely with electronics and hardware engineering teams Full software lifecycle activities including: Requirements capture Design Development Testing Documentation Supporting integration and implementation of new functionality Producing engineering documentation and technical records Working within structured ISO-regulated engineering processes Required Experience We are looking for candidates with experience in: C# .NET / Visual Studio Full software development lifecycle Structured software development methodologies Working within technical engineering teams Desirable Experience Any experience in the following would be advantageous: Embedded software or firmware development (C or C++) Hardware/software integration and Electronics knowledge Xamarin or Android development Defence, aerospace, industrial systems, or regulated engineering environments The Ideal Candidate You will likely be: A strong problem solver Comfortable working independently Detail-oriented and quality-focused Interested in engineering-led environments and Motivated by technically complex products and systems Package & Benefits 9-day fortnight Profit sharing scheme Pension Death in service benefit Collaborative engineering culture Long-term product development environment Important Information Due to the nature of the work, applicants must be eligible to obtain UK SC Security Clearance. If you would like to work on advanced engineering systems in a highly technical environment, we would love to hear from you.

Senior Control Systems Engineer (Outside IR35) Electrical Commissioning Control Panels Water Treatment Systems We re working with an engineering business delivering bespoke control systems projects across multiple UK sites. They are looking for an experienced engineer to support electrical installations, commissioning, maintenance and fault-finding on custom-built systems. The Role Control panel wiring and electrical integration Testing, fault-finding and commissioning Working with pumps, solenoids and associated systems Supporting installation and commissioning activities on-site Working from electrical drawings and existing firmware documentation Assisting with configuration and graphics/HMI editing Supporting and developing the existing C++ based control system where required Candidates should have an electrical engineering background with panel work and maintenance experience. NVQ Level 3 Electrical is required, along with the ability to quickly understand existing control systems and work alongside the Mechanical Engineering Director during commissioning activities. Locations Central London Bristol Woking Oxford Travel between sites will be required. Please send your CV if interested.

We are currently seeking a Senior Firmware Engineer to join a high-performing engineering team working on cutting-edge embedded systems. This is an exciting opportunity to contribute to the development of a complex, real-world product, working across the full lifecycle from development through to deployment. The Role You will be responsible for developing and maintaining embedded software, working closely with hardware teams to deliver robust, high-quality firmware solutions. The role involves a mix of new development, porting existing code, debugging, and system optimisation. Key Responsibilities Design, develop, and maintain embedded firmware Work with existing codebases, including porting and refactoring Debug complex issues across software and hardware Collaborate closely with hardware engineers on system integration Contribute to architecture decisions and code quality Key Requirements Strong experience in embedded firmware development Proficiency in C and/or C++ Experience with RTOS (e.g. FreeRTOS) and some bare-metal development Knowledge of communication protocols such as CAN, UART, SPI, I2C, BLE Experience working with microcontrollers and low-level drivers Strong debugging skills, including hardware interaction and reading schematics Desirable Experience Motor control, power electronics, or inverter systems Functional safety standards (e.g. MISRA) CI/CD tools (e.g. Jenkins) and version control (Git) Additional Information Location: London (Hybrid working) Contract position This is a great opportunity for an experienced firmware engineer looking to work on technically challenging systems within a collaborative environment.

We are working with a highly specialised UK engineering company delivering advanced embedded systems for complex, high-performance environments. Due to continued growth and an upcoming project transition, they are looking to bring a key skillset in-house and hire an experienced Embedded Software Engineer with strong Yocto and Linux expertise. You will play a critical role in designing, building, and maintaining embedded Linux systems from the ground up. This position is focused on developing robust, scalable software for bespoke hardware, with a strong emphasis on the Yocto Project. You will be involved across the full development lifecycle, from low-level board bring-up through to system optimisation and deployment. Key Responsibilities Develop and maintain embedded Linux distributions using Yocto Perform Linux kernel configuration and development Support board bring-up on custom hardware platforms Develop and integrate device drivers Work with U-Boot and bootloader configurations Collaborate with hardware engineers on system integration Troubleshoot and optimise system performance Contribute to long-term capability building within the embedded team Required Experience Strong commercial experience with the Yocto Project Deep understanding of embedded Linux systems Experience with: Linux kernel development Board bring-up Device driver development Bootloaders such as U-Boot Proven ability to build Linux systems from scratch for custom hardware Strong debugging and problem-solving skills Desirable Skills Existing SC Clearance Experience working in regulated or security-sensitive environments Background in industries such as defence, aerospace, or telecommunications

We re working with a globally recognised technology business that develops mission-critical communication systems used by emergency services and public safety organisations worldwide. Their products are designed for environments where clear, reliable communication can save lives, and they are continuing to invest heavily in next-generation technology. The Role We are looking for a Principal Audio Software Engineer to lead the development of advanced audio processing solutions for cutting-edge communication devices. This is a high-impact, senior technical role where you will shape the audio performance of products used in real-world, high-pressure environments. You will take ownership of audio architecture, DSP algorithm development, and system optimisation, working closely with cross-functional engineering teams. Key Responsibilities Architect and develop real-time audio processing algorithms Deliver technologies such as: Noise reduction Acoustic echo cancellation Beamforming Voice activity detection Audio enhancement and codecs Lead technical decision-making and define audio software standards Collaborate with embedded, hardware, and systems teams Optimise performance for low-latency, resource-constrained environments Drive innovation in audio and DSP technologies What We re Looking For Strong experience in real-time audio software or DSP development Excellent C/C++ skills within embedded systems Deep understanding of: AEC, noise reduction, AGC Beamforming, filtering, VAD Experience optimising for performance and low latency Proven ability to lead complex technical projects Desirable Experience Background in mission-critical or safety-critical systems Knowledge of TETRA, DMR, LTE or similar technologies Experience with MATLAB or Python Understanding of acoustics or microphone arrays Experience with ARM, RTOS, or multi-core systems Exposure to machine learning in audio processing

An established and globally recognised technology business is seeking an Embedded Software Engineer to join their specialist Device Driver team. You will play a key role in developing low-level embedded software for advanced communication devices used in critical, real-world environments. This is a fantastic opportunity to work on complex systems where performance, reliability, and security are essential. The Role As an Embedded Software Engineer, you will be responsible for designing, developing, and testing low-level software and device drivers that interface directly with hardware. You will work across a range of embedded platforms and operating systems, contributing to the development of high-performance communication products used worldwide. Key Responsibilities Design and develop low-level embedded software and device drivers Work across platforms including Embedded Linux, FreeRTOS, and bare-metal systems Produce technical documentation including design and test specifications Participate in technical reviews and project planning Conduct integration testing, debugging, and issue resolution Collaborate closely with hardware and software engineering teams What We re Looking For Strong experience with C programming in real-time embedded systems Proven background in low-level or device driver development Experience working on commercially released embedded products Strong debugging and problem-solving skills Experience with Embedded Linux driver architecture and ARM-based platforms Familiarity with multi-threaded, event-driven systems Desirable Skills Experience working closely with hardware, including debugging tools such as oscilloscopes and logic analysers Knowledge of code profiling, memory analysis, or automated testing tools Experience within telecoms, mobile, or similar embedded environments