Senior Firmware Engineer

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Senior Firmware Engineer

Salary: Up to £70,000 DOE + Benefits
Location: Nottingham

KO2’s client is looking to add an experienced Senior Firmware Engineer to their growing engineering team. This is a technically focused senior role, offering a strong balance of hands-on embedded development (around 70%) alongside technical leadership (around 30%).

This opportunity suits an engineer who enjoys staying close to the code while also influencing architecture, project delivery, and technical direction.

You’ll be working on the development of embedded firmware across a range of platforms, contributing to system architecture, guiding project approach, and ensuring high standards of delivery. While this isn’t a purely managerial position, it does include responsibility for technical leadership, mentoring, and some line management.

Responsibilities

  • Hands-on development of embedded firmware using C
  • Working across bare-metal, RTOS, and embedded Linux environments
  • Contributing to and owning aspects of software system architecture
  • Setting technical direction, standards, and best practice
  • Supporting project estimation, planning, and delivery approach
  • Monitoring progress to ensure work is delivered to the required quality, time, and budget
  • Providing technical leadership and mentoring to engineers
  • Conducting 1-to-1s and line management where required
  • Collaborating with hardware, systems, and wider engineering teams

Experience Required

  • Strong commercial experience in embedded C / firmware development
  • Background working on bare-metal, RTOS, and Linux-based systems
  • Experience contributing to firmware or software architecture
  • Comfortable balancing hands-on development with leadership responsibilities
  • Able to estimate work and support technical project delivery
  • Strong communication skills and a collaborative mindset

What’s on Offer

  • Salary up to £70k DOE
  • A senior technical role with genuine influence
  • A strong mix of coding and leadership
  • Opportunity to work on complex embedded systems within a growing team

If you’re a Senior Firmware Engineer looking for a role that still values deep technical contribution alongside leadership, please apply or contact KO2 for more information.

 

Electronics Engineer (Embedded C)

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Sports Technology | Permanent
Vauxhall, London (Hybrid – 3 days onsite / 2 remote)
Up to £65,000

KO2 are working with an innovative sports technology company based in Vauxhall, developing high-performance electronic systems used in elite sport. The client is flexible, so please apply if you can design electronics and write embedded software, albeit not at expert level, they are happy to mentor on the embedded software side.

KO2’s client are looking for an electronics led engineer who can also write embedded software in C. This is a hands-on role working across the full product lifecycle, from PCB design through to embedded bring-up and testing.

The Role

  • Electronics design from concept to production (schematics, PCB layout, bring-up)
  • Embedded software development and debugging in C (some C++ exposure useful)
  • Working with microcontrollers and embedded systems
  • Supporting testing, fault-finding and real-world deployment

The Profile

  • Strong electronics engineering background
  • Experience designing PCBs (Altium for production, KiCad also used)
  • Able to write and debug embedded C
  • Ideally 4+ years’ experience
  • Skill split typically 70/30 or 80/20 in favour of electronics, but strong 50/50 engineers also considered

This is not a pure electronics role,  solid embedded c experience is needed, at some level.

What’s on Offer

  • Salary up to £65,000
  • Hybrid working (3 days in the Vauxhall office)
  • Permanent role working on real, deployed sports technology
  • Unique opportunity to work for a season at the company’s facility in Austria

If you can design electronics and write embedded C, at any balance between the two, this is a rare and exciting opportunity.

Senior Electronic Engineer

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Senior Electronic Engineer | Warrington

Up to £70k DOE

About the Role

We’re seeking an experienced Senior Electronic Engineer to join our growing team in Warrington. This is a key technical position offering the opportunity to lead innovative design projects, mentor junior engineers, and shape the future of our electronic systems and products.

Key Responsibilities

  • Lead the design, development, and testing of electronic circuits and systems
  • Produce detailed schematics, PCB layouts, and technical documentation
  • Oversee product lifecycle activities including prototyping, validation, and certification
  • Collaborate with cross-functional teams including software, mechanical, and project management
  • Provide technical leadership, guidance, and mentoring to junior engineers
  • Investigate and resolve complex engineering issues and contribute to continuous improvement
  • Ensure designs meet compliance requirements, quality standards, and project deadlines

About You

  • Strong experience in analogue and digital circuit design
  • Proficiency with industry-standard tools (e.g., Altium, KiCad, OrCAD, SPICE simulation tools)
  • Solid understanding of embedded systems, microcontrollers, and communication interfaces
  • Knowledge of EMC design principles and relevant regulatory standards
  • Strong problem-solving skills and a hands-on, proactive approach
  • Excellent communication and leadership skills

Why Join Us?

  • Competitive salary and benefits package
  • Opportunities for continued professional development
  • Work on exciting, cutting-edge projects in a supportive team
  • Modern facilities with a strong focus on innovation
  • Hybrid working options

Location

Based in Warrington, with excellent transport links and nearby amenities.

If you’re a driven Senior Electronic Engineer looking to make an impact, we’d love to hear from you.

Please send your CV and cover letter to KO2 Embedded Recruitment Solutions.

Embedded Software Engineer

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Embedded Software Engineer

Hybrid – One day every fortnight in Milton Keynes

£45,000 – £60,000

KO2’s client is looking for an Embedded Software Engineer to join their R&D team. The role is hybrid, with on-site time set at one day every fortnight. There are no fixed weekly office requirements.

You’ll work on embedded software for digitally controlled power supplies, writing Embedded C for bare-metal microcontrollers. The system uses two micros: one for the PFC stage and one for the inverter and final DC stage. You’ll take ownership of one of these areas and contribute to the wider embedded software development within the team.

You’ll also work alongside a Senior Embedded Software Engineer who will provide mentoring where needed. The client is open to applicants from junior through to senior level, as long as you can demonstrate solid skills in embedded software development. Power electronics experience is not required, but you should be comfortable with basic electronics.

What you’ll work on:

• Embedded C on bare metal

• Control software for digitally managed power supplies

• One of two microcontroller stages (PFC or inverter/DC stage)

• Collaboration with an experienced senior engineer on core embedded software tasks

Skills/ Experience needed:

• Strong Embedded C skills

• Embedded bare-metal or RTOS experience

• Interest in power-related products

• Ability to read electronic schematics and use lab equipment (bench PSU, oscilloscope)

• Experience with Git and Agile

If you want to work on real hardware, grow your embedded software skills, and join a flexible engineering team, this role will suit you well.

Power Electronics Engineer

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Power Electronics Engineer | Newcastle upon Tyne
Up to £70,000 | Visa Sponsorship Available

Join a fast-growing tech company developing high-voltage server systems for quantum analytics. We’re seeking a skilled Power Electronics Engineer for a permanent role with full visa sponsorship available.

The Role

You’ll design and develop high-power conversion systems (10 kW+), covering AC-AC, DC-DC and DC-AC platforms. From simulation and modelling through to testing, validation and certification support, you’ll play a key role in shaping our next-generation hardware.

Key Responsibilities

  • Develop and model advanced converter designs using PLECS/CADSTAR or similar tools.
  • Execute functional, thermal and electrical testing of prototypes.
  • Produce technical documentation and safety files for approvals.
  • Conduct EMC and power compliance testing with design-level mitigation.
  • Apply expertise in wide-bandgap tech, especially SiC-based systems.

Essential Skills

  • Strong grounding in power electronics design, control methods and system simulation.
  • Experience in analogue/digital circuit development.
  • Understanding of switching devices, thermal design and electromagnetic assembly considerations.
  • Awareness of embedded control and EMC behaviour.

Desirable

  • Experience with energy, industrial or high-power product development.

Apply today with an up to date CV to KO2 Embedded Recruitment Solutions.

Senior Embedded Software Engineer

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Role: Lead Embedded Software Engineer

Location: Frodsham, Cheshire

Salary: £60,000 to £70,000

When it comes to engineering medical technologies used at the point of need, whether in a GP surgery, an ICU, or a specialist hospital department, our client is setting new benchmarks for innovation, safety, and quality. Their devices are designed to prolong life, support clinicians, and deliver absolute reliability in critical environments.

With over a century of combined group expertise in high pressure medical systems and patient care technology, the business has earned long standing trust from healthcare professionals and patients alike. Building on this heritage, they are now expanding their engineering department and are looking for a highly capable Lead Embedded Software Engineer to guide the next generation of life saving products.

The Opportunity

As the Lead Embedded Software Engineer, you will take ownership of embedded software development within the department, acting as the technical lead and setting the standards for quality, architecture, documentation, and compliance. You will play a central role in developing devices used in hospitals, critical care wards, and frontline clinical environments.

You will work closely with hardware, systems, and regulatory teams, ensuring products meet the stringent requirements expected of medical grade technology. This is a key appointment within a growing medical device start up environment, where your expertise and leadership will meaningfully shape the future of the department and its products.

Who They Are Looking For

The business is open minded and will consider applicants from three backgrounds:

  • Medical device specialists, experienced embedded software engineers with a background in medical, healthcare, or other regulated environments such as ISO 13485, IEC 62304, aerospace, automotive safety, and similar sectors
  • Regulated industry engineers, with transferrable skills from other safety critical or regulated sectors and the appetite to transition into medical devices
  • Exceptional embedded software engineers, without regulated industry experience but who demonstrate the drive, determination, and personal qualities to thrive in a medical device environment

Titles considered include Senior Embedded Software Engineer, Principal Embedded Software Engineer, and Lead Embedded Software Engineer, with salary aligned to capability and experience.

Location and Hybrid Working

The Director is supportive of remote working and is happy for the role to be office based one to two days per week, potentially less. However, due to internal policy, the successful candidate must live within a sensible commuting distance and be able to reach the Frodsham site within around one hour and fifteen minutes when needed for collaboration, test activities, or project requirements.

Package

  • £60,000 to £70,000 salary, depending on experience and seniority
  • 5.9% company pension contribution
  • 8% annual performance based bonus
  • Flexible hybrid working
  • An opportunity to lead an embedded function within an innovative medical device environment.
  • Meaningful work on products that improve and save lives

If you want your work to have purpose, this is a rare chance to combine cutting edge engineering with real world clinical impact. You will be joining an ambitious and passionate team dedicated to improving patient outcomes through technological excellence.

Senior Embedded Software Engineer

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Role: Senior Embedded Software Engineer

Location: Manchester

Salary: Up to £70,000 DOE + Benefits

Are you an experienced Embedded Software Engineer looking to take your career to the next level? Join our clients innovative Manchester-based team, where you’ll help shape the next generation of embedded software solutions used across high-performance systems used around the globe.

What You’ll Be Doing

You’ll play a key role in designing, developing, and optimising embedded applications across a range of embedded and Linux-based platforms. Working alongside talented engineers, you’ll help build robust, efficient systems that power real-world products.

Skills and Experience Required:

  • Solid, hands-on experience in embedded systems
  • Strong C or C++ skills within embedded environments
  • Java development experience
  • Knowledge of communication protocols including RS232, I2C, TCP/IP, and USB
  • Strong analytical problem-solving abilities
  • Ability to stay focused and effective under pressure

Desirable:

  • Experience developing on Ubuntu and Windows environments
  • Familiarity with Yocto or Buildroot
  • Understanding of Linux kernel configuration
  • Experience developing Java OpenJDK on embedded Linux platforms
  • SAS Experience

Why Apply?

  • Work with cutting-edge embedded technologies
  • Be part of a collaborative, supportive engineering culture
  • Opportunities for growth, training, and technical leadership
  • Competitive salary + comprehensive benefits package

Apply today with an up-to-date CV and a member of the KO2 team will be in touch to progress your application.

Lead Electronics Engineer

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Role: Lead Electronic  Engineer

Location: Preston + Hybrid Work from home

Salary: Up to £70,000 + Benefits

Are you an experienced Electronic Embedded Engineer passionate about new product innovation and cutting-edge technology?

Our client, a leading technology company based in Preston, is expanding its engineering team and seeking a talented engineer to play a key role in the design and development of next-generation electronic products.

This is an exciting opportunity to work on full product lifecycle development — from concept through to production — where your ideas and expertise will directly shape innovative products used across high-performance applications.

The Role

As an Electronic Embedded Engineer, you’ll work within a collaborative, multi-disciplinary team to design, develop, and test complex electronic systems. You’ll be involved in both hardware and firmware development, taking ownership of projects that combine analogue and digital circuit design with embedded microcontroller-based systems.

You’ll also contribute to research and development activities, pushing forward new ideas for product improvement and innovation — particularly in battery-powered and energy storage technologies.

Key Responsibilities

  • Design, develop, and test analogue and digital electronic circuits.
  • Develop embedded firmware for microcontroller-based systems (C/C++).
  • Contribute to new product development from concept to production.
  • Conduct prototyping, validation, and debugging of electronic designs.
  • Work closely with mechanical, software, and production teams to ensure seamless integration.
  • Support continuous improvement and innovation within product design.

Skills & Experience

Essential:

  • Strong experience in electronics and embedded system design.
  • Proven background in analogue and digital circuit design.
  • Experience with microcontroller development (ARM, PIC, STM32, or similar).
  • Solid understanding of embedded programming.
  • Track record of delivering innovative new products in an R&D environment.

Desirable:

  • Experience with power storage, battery-powered, or low-power electronic systems.
  • Knowledge of power management, charging circuits, or energy-efficient design.
  • Familiarity with compliance testing (EMC, CE, etc.).

Why Join?

  • Be at the forefront of innovative product design and development.
  • Join a collaborative, forward-thinking engineering team.
  • Work on a diverse range of technically challenging projects.
  • Excellent career growth opportunities in a company investing in R&D and innovation.

IoT Systems Engineer

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Position: IoT Systems Engineer

Location: Thornbury, Bradford

Salary: up to £50,000 + benefits
Employment: Full-time, on-site (limited hybrid flexibility)

Our client, a technology company based in Thornbury, Bradford, develops monitoring devices used for refrigeration environments for intracellular fluid. They are seeking an IoT Systems Engineer to support the deployment, integration and operation of their connected monitoring systems.

This role is primarily site-based, with occasional customer visits in the UK and abroad. A driving licence and valid passport are required.

Key Responsibilities

  • Deploy and support IoT systems using Node-RED, including building data flows and integrations.
  • Configure and manage IoT devices and gateways, including LoRaWAN (Chirpstack).
  • Maintain secure data pathways using HTTP/MQTT, APIs and industrial protocols (Modbus-TCP, OPC-UA).
  • Support deployments using Linux VMs, Docker, VPN/firewall rules (Azure NSGs, Cloudflare).
  • Commission and troubleshoot edge devices and networks on-site.
  • Maintain dashboards in ThingsBoard and support a small legacy IIS/SQL Server setup.
  • Contribute to scaling from early pilots (~100 devices) to larger rollouts.

Skills and Experience Required:

Essential

  • Experience with Node-RED
  • Hands-on with LoRaWAN devices/platforms (e.g., Chirpstack)
  • IoT or connected systems deployment/support
  • Knowledge of Modbus-TCP, OPC-UA
  • Basic Linux & Docker skills
  • Understanding of secure networking (VPNs, NSGs, Cloudflare)
  • Familiarity with HTTP/MQTT and JSON data

Preferred

  • ThingsBoard customisation
  • PostgreSQL
  • Scripting (JavaScript or similar; TBEL a plus)
  • Exposure to IIS + SQL Server

Benefits

  • Up to £50,000 salary
  • Pension
  • Performance Bonuses
  • Holiday buy-back, First Friday half-days, cycle to work scheme
  • Electric Car Scheme
  • Professional development opportunities

Apply today with an up to date CV and cover letter to KO2 Embedded Recruitment Solutions and a member of the team will be in touch to discuss.

Electronics Engineer

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Electronics Engineer
Location: Peterborough

Salary: £45,000 to £50,000 + Bonus

KO2’s client is a specialist engineering business in Peterborough that designs and develops complex, rugged machines built to operate reliably in harsh and demanding environments. With a small and focused R&D team, they are now looking for an Electronics Engineer to support the ongoing improvement and maintenance of an established product range.

This role is ideal for an engineer early in their career who enjoys practical, hands-on work, troubleshooting, and getting deeply familiar with existing hardware. You will work closely with an experienced hardware engineer to understand product architecture, investigate issues, and implement hardware-related improvements. The work is varied, workshop-focused, and centres on problem solving rather than designing brand-new PCBs from scratch.

There is also potential to support a new product development programme being run from their Bristol team, depending on workload and your interests.

Role Overview
• Continuous improvement and maintenance of current ruggedised products
• Hands-on troubleshooting, fault investigation and root-cause analysis
• Instrumenting, testing and modifying existing hardware to resolve issues
• Engaging with firmware and software colleagues to support system-level behaviour
• Interacting with Raspberry Pi and STM32-based architectures
• Prototyping, soldering and workshop tasks when needed
• Understanding existing schematics, system layouts and hardware behaviours

Skills and Experience
• Degree in electronics or a closely related discipline, or equivalent experience
• Knowledge of Raspberry Pi and STM32-based hardware platforms
• Comfortable working hands-on with electronics: multimeters, oscilloscopes, soldering and instrumentation
• Able to engage with firmware and software at a basic level (no full coding expected)
• Strong troubleshooting mindset and a practical approach to problem solving
• Suitable for someone with roughly two to four years’ experience or a capable junior engineer
• Driving licence required due to site location

Package
• Salary between £45,000 and £50,000 depending on experience
• Exceptional performance-based bonus scheme, typically delivering between one and two months’ pay in recent years
• Onsite role with free parking

Apply today with an up-to-date CV and a member of the KO2 team will be in touch to progress your application.

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