Senior Embedded Software Engineer

Filtronic; Sedgefield; On-site; GBP 65,000 - 90,000; Full time

Benefits offered by this job

37.5 hour working week

25 days’ holiday + 5 extra days

Pension contributory up to 8%

Life Assurance 4x salary

Income Protection Insurance

SAYE share scheme

EV scheme

Cycle to Work scheme

Volunteering day

Learning and development opportunities

Hybrid working available

Job summary

Filtronic is seeking a Senior or Higher Senior Embedded Software Engineer to join our engineering team at our headquarters in Sedgefield. You will design, develop and debug embedded software for real-world RF systems, working across bare-metal and RTOS environments.

You will collaborate closely with hardware, FPGA and systems engineers to integrate software into complex electronics, bringing up prototype boards and resolving issues across the full product lifecycle.

Qualifications

• Solid experience in embedded C/C++ development for ARM microcontrollers.
• Experience with bare-metal and RTOS-based systems.
• Degree in Computer Science or Electronic Engineering or equivalent.

Responsibilities

• Design, develop and debug embedded software for RF applications on bare-metal and RTOS.
• Bring up new hardware and debug prototype boards.
• Implement Ethernet, CAN, SPI, I2C, UART interfaces.
• Develop TCP/IP, REST APIs, SNMP and OpenAPI networking.
• Collaborate with hardware, FPGA and systems teams to integrate software.
• Troubleshoot software, networking and embedded system issues.
• Support full product lifecycle from concept to manufacture.

Skills

Embedded C/C++

RTOS experience

ARM Cortex MCUs

Debugging skills

Cross-disciplinary collaboration

Problem solving

Education

Bachelors in CS or Electronic Engineering or related

Tools

Zephyr RTOS

FreeRTOS

STM32 microcontrollers

Python

MISRA C/C++

Job description

Filtronic is a leader in advanced RF and microwave technology, designing and manufacturing high-performance solutions for the Space, Aerospace, Defence and Telecommunications sectors.

As we continue to grow, we're looking for a Senior or Higher Senior Embedded Software Engineer to join our engineering team at our headquarters in Sedgefield. This is an exciting opportunity to work on cutting‑edge embedded software that powers some of the world's most advanced RF and communications systems.

You'll be part of a multidisciplinary engineering team developing innovative products from concept through to production, working alongside experts in RF, FPGA, hardware and systems engineering.

What You'll Be Doing

As an Embedded Software Engineer, you'll design, develop and debug embedded software for real‑world RF applications, working on both bare‑metal and RTOS‑based systems.

Your responsibilities will include:

• Developing embedded software in C/C++ for ARM-based microcontrollers.
• Designing software for bare‑metal and real‑time operating systems, including FreeRTOS and Zephyr.
• Bringing up new hardware and debugging prototype boards using oscilloscopes, logic analysers and software debugging tools.
• Developing robust communications between embedded devices using interfaces such as Ethernet, CAN, SPI, I²C, UART and RS422.
• Designing networking functionality including TCP/IP, REST APIs, SNMP and OpenAPI interfaces.
• Working closely with hardware, FPGA and systems engineers to integrate software with complex electronic systems.
• Investigating and resolving software, networking and embedded system issues.
• Contributing throughout the full product development lifecycle from concept through to manufacture.

We're interested in talented engineers who enjoy solving challenging technical problems and developing reliable embedded software.

You'll ideally have

• Strong commercial experience developing embedded software in C/C++.
• Experience working with bare‑metal systems and/or real‑time operating systems.
• Experience developing software for ARM Cortex‑based microcontrollers.
• Practical experience bringing up prototype hardware.
• Knowledge of embedded communication protocols including Ethernet, CAN, SPI, I²C and UART.
• Excellent debugging skills using both hardware and software tools.
• A degree in Computer Science, Electronic Engineering or a related discipline, or equivalent commercial experience.

Experience in any of the following would be advantageous

• Zephyr RTOS or FreeRTOS
• STM32 microcontrollers
• Embedded networking and TCP/IP
• Secure bootloaders and firmware update mechanisms
• Python
• MISRA C/C++
• RF or microwave systems
• Defence, aerospace or space applications

We offer

• Exciting projects in Space, Defence, Aerospace and Telecommunications.
• The opportunity to work with leading engineers across multiple disciplines.
• Modern development tools and well‑established engineering processes.
• Genuine opportunities for career development and progression.
• A collaborative, supportive engineering culture.
• Competitive salary and benefits package.

Above all, we value enthusiasm, curiosity and a willingness to learn. If you don't meet every requirement but believe you have the skills and attitude to succeed, we'd still love to hear from you.

Please call our Talent Partner, Bruce Mair on 07483 917543 if you would like to chat about this role or clarify the salary prior to investing your time applying.

Benefits include

• 37.5 hour working week
• 25 days' holiday plus public holidays, with the option to buy up to 5 additional days
• Contributory pension scheme with up to 8% company contribution
• Life Assurance (4 x basic salary)
• Income Protection Insurance
• Save As You Earn (SAYE) share scheme
• Electric Vehicle (EV) scheme
• Cycle to Work scheme
• Volunteering day
• Learning and development opportunities
• Hybrid working available

Filtronic plc is an equal opportunities employer and is committed to building a diverse and inclusive workplace where everyone can thrive. We welcome applications from all qualified candidates regardless of age, gender, ethnicity, religion, sexual orientation, or disability status. If you require any adjustments or accommodations to support you during the interview process, please let us know and we will be happy to assist.