Shape how safety-critical software is verified at the highest level. We're partnering with a growing, highly respected engineering SME specialising in safety-critical embedded systems . They are looking for a Principal Software Engineer (Verification) to play a key role in developing and assuring high-integrity embedded software, including a safety-certified real-time operating system. This is a hands-on software engineering role within the verification team, combining technical leadership with deep involvement in verification, validation, and certification activities. The Role You'll operate as a senior technical authority while remaining close to the code. Responsibilities include: Leading verification strategy and approach for embedded software systems Designing, developing, and maintaining test frameworks, tools, and automation Performing low-level software verification across multiple architectures Contributing directly to code-level activities (primarily C / embedded environments) Driving verification activities across the full software lifecycle Supporting certification to standards such as IEC 61508, DO-178C, ISO 26262 Mentoring engineers and setting best practices within the verification team Working closely with customers to provide technical guidance and support What We're Looking For Essential: Degree in Engineering, Computer Science, Maths or similar Experience with Real-Time Operating Systems (e.g. FreeRTOS, SafeRTOS or similar) Strong background in embedded software engineering (C) Significant experience in software verification / validation Experience developing test tools, frameworks, or automation Understanding of low-level / hardware-near software behaviour Experience working in a controlled or safety-critical environment Degree in Engineering, Computer Science, Maths or similar Strong communication skills and ability to engage with stakeholders Highly Desirable: Knowledge of safety standards ( IEC 61508, DO-178C, ISO 26262, IEC 62304 ) Experience with ARM architectures (Cortex M / A) or similar Understanding of debugging at processor level Knowledge of software lifecycle, requirements, and configuration management Exposure to networking, multicore systems, or embedded security Working Environment Bristol-based Hybrid working (minimum 3 days onsite; more during onboarding) Collaborative, engineering-led environment with strong technical depth Package & Benefits Competitive salary with annual review Performance-related bonus Generous pension contribution Private healthcare, income protection & life assurance 25+ days holiday (increasing with service) Flexible working hours Ongoing professional development and training TPBN1\_UKTJ

World Class Defence Organisation based in Stevenage and Bristol is currently looking to recruit a Systems Performance Modelling Engineer subcontractor on an initial 12 month contract. Your base site can be either Stevenage or Bristol, depending on your preference. The role can be worked on a 4 day week basis (Monday to Thursday) but due to the nature of the work, the position will need to be based onsite.

This role would be suitable for a Simulation and Modelling Engineer (Matlab / Simulink) ideally from the defence or aerospace industry.

Rate:£80.00 per hour
Location: Your base site can be either Stevenage or Bristol, depending on your preference
Hybrid / Remote working: The role will based onsite. A compressed 4-Day week of Monday to Thursday is possible
Contract:37 Hours per week
Overtime: Hours worked over 37 hours per week will be calculated at time and a quarter
Duration: 12 Months (initially and then ongoing and long-term thereafter)
IR35 status: Inside IR35 (Umbrella)
Systems Performance Modelling Engineer Job Description:

We are looking for a modeller to produce models of the seeker RF Radar. The model includes the seeker hardware, digital processing and target environment. The modelling team is responsible for developing the model, producing auto-code, generating seeker performance predictions and interfacing the seeker model into the missile dynamic reference model.

Responsibilities (to include):

• Modelling in Matlab and Simulink using model-based design techniques
• Producing parts of a complex Seeker model including modelling the target scenario, seeker hardware and processor algorithms
• Develop and implement algorithms within the model
• Producing and verifying auto-code for the software algorithms from the model
• Carrying out seeker performance assessment
• Producing a simpler representation of the model for use in the missile model
• Upgrading legacy Seeker models to newer MATLAB/Simulink Vectors
• Documenting the model changes and creating test vectors

Due to the sensitive nature of the work it is predominantly done onsite but there is some flexibility depending on project.

Skillset / experience required:
Tools:

• Simulink
• Matlab

Skills:

• Modelling for auto-coding
• Assessing suitability of algorithms in the model
• Aptitude for converting an algorithm into a Simulink model (desirable)
• Familiarity with Radar and Control Systems (desirable)
• Familiarity with Digital Signal Processing (desirable)
• RF experience (desirable)
• Experience in C (not essential)
• Technical report writing
• Model delivery experience

Job Title: Firmware Engineer Location: Bristol (Hybrid – 3 days on-site per week) Salary: Up to £60,000 + Bonus & Benefits (dependent on experience) Overview : An exciting opportunity has arisen for a Firmware Engineer to join an engineering team of 40+ who are going to be developing the next generation of product, which will be deployed across the globe. In this role, you will contribute to the design and development of high-performance embedded software and firmware for next-generation products, while also maintaining and enhancing existing systems. Key Responsibilities Design, develop, and maintain firmware in C Support new product development and continuous improvement of existing solutions Collaborate closely with multidisciplinary engineering teams Debug and troubleshoot embedded hardware and software issues Skills & Experience Required Minimum of 3 years' experience working with embedded systems Strong proficiency in Embedded C for bare-metal firmware development Experience with communication interfaces and protocols such as SPI, RS-485, and CAN Hands-on debugging experience using oscilloscopes, logic analysers, and multimeters Familiarity with source control systems such as Git Benefits Package Competitive pension scheme (up to 7% employer match) Discretionary annual bonus (typically around 10%) 25 days annual leave plus 8 bank holidays Private medical healthcare Hybrid working and flexitime Annual wellness checks 25% discount on gym memberships Retail vouchers Mental health support services Regular social activities If you're interested in learning more about this opportunity, please apply with your latest CV. Visa Sponsorship not available for this role TPBN1\_UKTJ

Bristol £45,000-£55,000 YT Tech are working with Domin on an Embedded Software Engineer position. Domin is a product company that designs, develops, manufactures, and sells advanced hydraulic systems for some of the most demanding applications in the world. We’re looking for a mid-level embedded software engineer role working primarily on Domin’s valve product line, with potential exposure to suspension products. You will take ownership of embedded software features across the stack, including drivers, firmware, and system-level behaviour. You are expected to get up to speed quickly in a complex system, working both with support from senior engineers and independently to understand and solve problems. You'll write robust embedded C++ code, debug issues directly on hardware, and develop a strong understanding of how software interacts with electronics and microcontrollers. This is not a task-based role — the expectation is ownership of well-defined features from implementation through to validation. Success in this role means being a self-sufficient engineer who can independently navigate unfamiliar systems, diagnose issues, and deliver reliable embedded software. Key Responsibilities \* Develop embedded software in C++ for Domin’s valve product line \* Own and deliver features across the stack, including drivers, firmware, and system-level behaviour \* Debug issues on real hardware, including microcontroller-level problems and hardware/software interactions \* Work independently and collaboratively to understand system behaviour and resolve issues \* Take full ownership of defined features, from implementation through testing and validation \* Contribute to improving code quality, reliability, and maintainability \* Use version control (GitHub) effectively, including pull requests and code reviews Essential Requirements \* 3+ years of professional experience in embedded software development (or equivalent demonstrable capability) \* Strong ability to write embedded software in C or C++ (C++ preferred, but C-only experience acceptable) \* Solid understanding of microcontrollers and how embedded systems operate \* Strong problem-solving ability, particularly in debugging complex issues across software and hardware \* Experience debugging software on real hardware \* Familiarity with debugging tools (e.g. oscilloscopes, logic analysers, JTAG debuggers) \* Good understanding of fundamental electronics relevant to embedded systems If interested, and you match the criteria, please apply with your most recent CV

Remote Payroll Officer - 4-Week Interim Contract (Potential Extension)

About the role
The Payroll Officer is responsible for the accurate and efficient operation of the payroll function, handling confidential information with discretion. Strong numerical ability, excellent communication, and high-level IT skills are essential.
Your new role

• Process weekly and monthly payroll for c. 2,600 employees, including starters, leavers, statutory payments, HMRC requirements, adjustments, and compliance tasks.
• Maintain payroll accuracy across systems and ensure adherence to internal policies and procedures.
• Apply up-to-date payroll legislation and provide basic guidance on tax codes, National Insurance, and statutory entitlements (SSP, SMP, SPP, etc.).
• Manage payroll processes, reporting, and reconciliation, including pension administration and auto-enrolment duties.
• Handle employee and third-party payroll queries professionally.
• Prepare payroll information for external bodies such as mortgage providers or agencies.
• Keep process documentation updated and ensure compliance with GDPR and data security requirements.
• Support wider payroll administration tasks as required.

What you’ll need to succeed

• Payroll qualification.
• Experience with payroll systems (ideally Access).
• Strong understanding of payroll legislation.
• Confident communicator with strong organisational skills and excellent attention to detail.
• Proficient in Word, Excel and Outlook.
• Able to work independently and within a team, maintaining confidentiality throughout.

What you need to do now
If you’re interested in this role, click ‘apply now’ to forward an up-to-date copy of your CV, or call us now.
If this job isn’t quite right for you, but you are looking for a new position, please contact us for a confidential discussion about your career.

World Class Defence Organisation is currently looking to recruit 5x Embedded Software V&V Engineer subcontractors on an initial 6 month contract. Skills in C, C++ or ADA are beneficial. A defence or aerospace industry background would also be great. Rate: £70.00 per hour
Location: Stevenage or Bristol, depending on your preference.
Hybrid / Remote working: Full time on site (occasional work from home day) (The company are happy with a 4 day week)
Contract: 37 Hours per week
Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’
Duration: 6 Months (initially and then ongoing and long-term thereafter)
IR35 status: Inside IR35 (Umbrella) Interview process: 1 stage video interview Embedded Software V&V Engineer Job Description: The department create the complex, highly reliable real-time software that powers missile systems and their components, ensuring that they provide the performance and functionality our users require when they need it.
The department are involved all the way through development – from concept studies through trials firings and the move into production and service. Responsibilities: You will be responsible for the verification and validation activities on real-time systems application software for the next generation of Missile Systems.
The role requires taking requirements, developing them into robust test cases, preparing and executing tests, capturing data, and delivering actionable feedback to project teams. You will have to draw upon your strong practical problem-solving skills, data acquisition expertise, and adaptability. Skillset/experience required: Essential: Strong experience of V&V activities in an embedded software environment.
Ability to turn requirements into structured test cases and procedures.
Experience of working in a lab environment on an electro mechanical product running embedded software.
Good working knowledge of the complete software engineering lifecycle.
Scripting abilities
Embedded software development experience using C, C++ or Ada Advantageous: Safety critical systems experience
Knowledge of standards such as DefStan 00-55, DO-178C & DO-330
Knowledge of Real Time Operating Systems
Model Driven Design experience
Knowledge of test automation methods
Knowledge of DOORS, Engineering Workflow Management (EWM), Rapita Suite, Rhapsody, LDRA
Breakpoint Analysis experience
Experience of Focused Code Reviews

World Class Defence Organisation is currently looking to recruit a Test Driven Development Lead subcontractor on an initial 6 month contract. Rate: £70.00 per hour
Location: Bristol Hybrid / Remote working: The role will be onsite – a compressed 4 day week (Monday to Thursday is fine)
Contract: 37 Hours per week
Overtime: Hours worked over 37 hours per week will be calculated at ‘time and a quarter’
Duration: 6 Months (initially and then ongoing and long-term thereafter)
IR35 status: Inside IR35 (Umbrella) Interview Process: One stage Video Interview Test Driven Development Lead Job Description: The UK Embedded Software department is at the core of the company’s projects. We create the complex, highly reliable real-time software that powers our missile systems and their components, ensuring that they provide the performance and functionality our users require when they need it.
The department are involved all the way through development – from concept studies through trials firings and the move into production and service. Responsibilities: You will act as a technical leader, coach, and change agent, embedding Test Driven Development (TDD) practices into a team of highly capable engineers who have not previously worked in a TDD environment. You will shape engineering culture and introduce TDD principles while maintaining clear organisational separation between development and testing.
You will not only coach the team, you will act as a hands-on test practitioner where you will personally design, implement, and execute most project tests to provide objective evidence of software quality in line with quality assurance requirements. Skillset/experience required: Essential: Strong background in Test-Driven Development practices
Experience with automated testing frameworks and CI/CD
Extensive hands-on experience designing and executing automated tests
Experience establishing test strategies from scratch
Demonstrated ability to coach experienced engineers
Strong requirements elicitation and analysis skills
Strong communication and facilitation skills Advantageous: C / C++ / MatLab / Similink
Jetson Orin NX / Linux
Hardware-software integration
Simulation or real-time embedded systems
Safety-critical or high-reliability systems experience

System Test & Verification Engineer (Embedded Systems)Location: Bristol– On-site 3 Days per WeekSalary: £55,000 – £65,000 + Bonus & Benefits (depending on experience)Note: All applicants must be able to work in the UK without the need for VISA Sponsorship now, or in the futureSummary: A successful candidate will play a hands-on role in implementing and managing Hardware-in-the-Loop Simulations (HiLS) to test hardware and firmware. They will take ownership of test strategy and execution for both legacy and new product developments, designing test cases, generating scenarios, and performing automated and manual testing to ensure solutions meet defined requirements. They will be responsible for maintaining clear test documentation and reports to support system and sub-system sign-off, while working closely with engineering teams to identify, troubleshoot, and resolve issues. The role will also involve contributing to reliability activities such as risk assessments and Failure Mode Effects Analysis, using data-driven insights to improve system robustness. We are looking for someone who can demonstrate strong analytical skills, with the ability to interpret test results, solve complex problems, and enhance overall system performance, while adhering to established standards for coding, version control, and documentation.Key Responsibilities:

• Develop and execute test plans, procedures, and cases for hardware and firmware
• Design, configure, and maintain the HiLS environment
• Ensure tests are fully traceable to high and low-level requirements
• Integrate physical hardware with virtual models and simulation tools
• Validate requirements coverage and traceability
• Investigate issues, report defects, and support resolution efforts
• Produce clear, accurate test documentation and reports
• Contribute to agile planning, defining testable acceptance criteria early
• Use embedded toolchains, debuggers, simulators, and automated test systems
• Interpret hardware schematics and datasheets
• Collaborate closely with cross-functional engineering teams

Experience Required:

• At least 3-years’ experience working with HiLS systems
• Proven experience in HiLS testing
• Experience with LabVIEW or MATLAB/Simulink
• Ability to develop test cases using scripting languages (e.g. Python) and automation tools
• Solid understanding of embedded systems, control systems, and system integration
• Experience using version control systems (e.g. Git)
• Proficient with Microsoft Windows and standard Office applications
• Strong analytical and problem-solving skills
• Degree in Computer Science, Electronic/Electrical Engineering, or a related field

Desirable Skills & Experience:

• Knowledge of ARM and/or Microchip dsPIC architectures
• Experience developing C code for bare-metal embedded systems
• Strong system integration and interface debugging skills
• Familiarity with automated testing frameworks (e.g. Pytest, Unity, Robot Framework) and debugging tools (e.g. JTAG, GDB, oscilloscopes)
• Good understanding of digital and analogue electronics
• Knowledge of common communication interfaces and protocols (e.g. SPI, RS485)
• Understanding of Systems Engineering principles
• Familiarity with UML
• Experience using task tracking tools (e.g. Jira, ClickUp)

Benefits Package

• Competitive pension scheme (up to 7% employer matched)
• Discretionary annual bonus (typically around 10%)
• 25 days annual leave plus 8 bank holidays
• Private medical healthcare
• Hybrid working and flexitime
• Annual wellness checks
• Retail vouchers
• Mental health support services

If you’re interested in learning more about this opportunity, please apply with your latest CV.

This is a hands-on technical role in Ecosurety’s IT team, focused on the day-to-day operational maintenance of our security posture, governance controls, and Business Continuity and Disaster Recovery (BCDR) programme. We are looking for a practical, detail-oriented technologist who enjoys the essential work of verifying controls in the real world. The successful candidate will be the checker who ensures our controls are not just documented, but verified, tested, and working.Ecosurety is an industry leading company of 95+ people, based in the heart of Bristol’s vibrant city centre, with a mission to accelerate change towards an environmentally and socially sustainable world. Our clients are many of the UK big brands and retailers, often facing particularly big challenges over their use of packaging. We are a Certified B Corp, committed to balancing profit with our social and environmental impact. If this sounds like your sort of place, we hope to hear from you soon.Job Description

• Own the technical runbooks for our BCDR plan - ensuring backup, restoration, and off-site procedures are regularly tested and documented
• Manage and resolve IT governance tasks flowing from Vanta, our compliance automation platform, maintaining a green status across all IT controls
• Conduct regular access and identity reviews; enforce multi-tenant data isolation and least-privilege principles
• Support audit readiness against NCSC Cyber Assessment Framework (CAF), CSA CAIQ, NIST, and our roadmap towards SOC 2
• Establish and track quantifiable technical baselines - encryption coverage, log retention, API compliance (OWASP) and source-code analysis checks
• Verify data input/output integrity routines across critical business systems
• Turn high-level policies into step-by-step operational checklists and repeatable procedures for the IT team

Person Specification

• Broad exposure to IT operations, DevOps principles, or a related technical discipline.
• Familiarity with one or more governance frameworks (ISO 27001, NCSC CAF, NIST, SOC 2 or similar) - you do not need to be an expert in all of them
• Process-driven mindset - able to translate policy into repeatable technical checklists
• Strong communicator - comfortable writing clear evidence documentation for internal and client audits

We do not recruit based only on skills. We give equal weight to behaviours and the successful candidate must be well aligned with the Ecosurety Values Framework. Specifically, we will be looking for examples of: Responsibility; Diligence; Clarity.Package

• c. £45,000 per year
• 12 month fixed term, full-time contract (would consider some flexibility for the right candidate)
• 28 days holiday plus 8 bank holidays
• 5 x salary life insurance, 7% employer pension contribution, up to 10% bonus, employee health cash plan, paid sick leave, critical illness cover, 2 weeks workcation, options to buy additional holiday or unpaid leave, 3 days volunteer leave, happy to talk flexible working, remote working, wellbeing support, great office location, £250 home working set up payment.
• Hybrid working: Employees are expected to work with colleagues (primarily at the office) at least 50% of the month

Ecosurety offers a working environment that enables our team to perform at their best, with flexible hours, remote working options, access to training and employee benefits. We focus on outputs, rather than work location or hours. If you are well organised, enjoy working with others and eager to make a meaningful contribution, please get in touch!We are an Equal Opportunities employer and welcome applications from all. We embrace flexibility and diversity in the workplace and aim to create a working environment in which all individuals can make best use of their skills, free from discrimination, harassment or bullying.We reserve the right to bring forward the closing date of any of our job vacancies if we receive a suitable number of high-quality applications from which to make a shortlist. Therefore, we recommend that you apply for one of our roles as soon as possible rather than wait until the published closing date. REF-227 913

Job Title : Principal Embedded Software Engineer Location : Bristol City Centre - 3 Days Per Week On-Site Salary - Up to £80,000 + Bonus & Benefits (Depending on Experience) Summary: This is a fantastic opportunity for an experienced engineer with a passion for leadership and a background in safety-critical embedded software to step into a high-impact role, driving both technical delivery and team performance. Responsibilities : Leading, mentoring, and managing a team of embedded software engineers in a collaborative and high-performing environment. Overseeing the full software development lifecycle – from requirements and design through to implementation, testing, and maintenance. Collaborating with cross-functional teams, including project management and QA, to ensure seamless and timely delivery of projects. Defining project scope and deliverables, aligning development with customer requirements and strategic goals. Conducting code reviews, promoting engineering best practices, and ensuring coding standards are upheld. Troubleshooting and resolving technical challenges while managing risk and maintaining timelines. Driving continuous improvement, fostering innovation, and supporting professional growth within your team. Required Skills & Experience: Proven experience in embedded software development within a safety-critical environment. Solid understanding of embedded systems and RTOS Strong programming skills in C and assembler. Demonstrated leadership experience with the ability to mentor, motivate, and manage engineering teams. Experience in project management, including planning, scheduling, and resource allocation. Ability to manage multiple concurrent projects effectively. Comprehensive experience across the full software development lifecycle. Please apply to find out more! TPBN1\_UKTJ

Job Title : Embedded Software Engineer Salary : Up to £65,000 + Bonus & Benefits (Depending on Experience) Location : Bristol (Hybrid -2/3 Days per week on-site) Zenovo is looking for talented Embedded Software Engineers (minimum 4 years' commercial experience) to join a Bristol based client, contributing to projects within a regulated industry, where excellence with Embedded Software Development is essential. In this role you will be involved in the ongoing development of software for Real-Time Operating Systems, working to recognised safety standards, and delivering high-quality design and test documentation. Key Skills Required: Proficient in C and Assembly programming languages Skilled in Embedded Systems Design and implementation Experienced in software development within controlled and regulated environments Proficient in working with Real-Time Operating Systems (RTOS) Strong low-level embedded engineering experience across diverse hardware platforms, including Cortex-M3, Cortex-M4, and Cortex-A7 Experienced in software requirements management and configuration control Solid understanding of the software development lifecycle (SDLC) Benefits Package Competitive pension scheme (up to 8% employer match) Discretionary annual bonus (typically around 10%) 25 days annual leave plus 8 bank holidays Private medical healthcare Clear Progression & Development Roadmap Hybrid working and flexitime TPBN1\_UKTJ

Systems Performance Modelling Engineer contract

Location: Bristol or Stevenage (on-site)
Duration: 12 months

Our client is looking for a modeller to produce models of the seeker RF Radar. The model includes the seeker hardware, digital processing and target environment. The modelling team is responsible for developing the model, producing auto-code, generating seeker performance predictions and interfacing the seeker model into the missile dynamic reference model.

Due to the sensitive nature of the work, this is predominantly done on-site but there is some flexibility depending on project.

Responsibilities:

• Modelling in Matlab and Simulink using model-based design techniques
• Producing parts of a complex Seeker model including modelling the target scenario, seeker hardware and processor algorithms
• Develop and implement algorithms within the model
• Producing and verifying auto-code for the software algorithms from the model
• Carrying out seeker performance assessment
• Producing a simpler representation of the model for use in the missile model
• Upgrading legacy Seeker models to newer MATLAB/Simulink Vectors
• Documenting the model changes and creating test vectors

Skills:

• Simulink
• Matlab
• Algorithm design
• Modelling for auto-coding
• Assessing suitability of algorithms in the model
• Aptitude for converting an algorithm into a Simulink model (desirable)
• Familiarity with Radar and Control Systems (desirable)
• Familiarity with Digital Signal Processing (desirable)
• RF experience (desirable)
• Experience in C (desirable)
• Technical report writing
• Model delivery experience
• Ability to work as part of a fast-paced team

Due to an expanding order book, Bristol based client have an opening for a position as Project Manager within their Technical team. They are seeking an experienced and highly organised individual to lead the delivery of residential design projects for major national house builders. This role combines technical expertise with strong leadership and client-facing responsibilities, requiring a professional who can confidently oversee projects from concept through to approval and construction readiness. The successful candidate will be responsible for preparing and coordinating technical drawings, liaising directly with clients, reviewing and approving third-party supplier designs, and managing a team of architectural technicians. A comprehensive understanding of current Building Regulations and NHBC standards is essential, alongside excellent time management skills and the ability to ensure projects are delivered accurately, efficiently, and to the highest quality standards.

Vacancy Title & Occupation - Project Manager - Technical Department
Sector - Construction Industry / Residential Housing

Vacancy Description. Duties will include:

• Preparation of technically accurate working drawings, to include substructure plans, floor plans, joist layouts, truss layouts, sections, large scale construction details, external works and conveyance plans.
• Liaising with clients to ensure drawings meet their brief.
• Running multiple projects at once with the ability to delegate effectively.
• Manage a team to prepare all drawings and documents required for use on site and for the submission of Building Regulation applications.
• Liaising with Building Control bodies to discharge conditions and resolve any queries.
• Co-ordinating information between consultants and incorporating into designs where necessary.
• Reviewing and incorporating specialist supplier designs.
• Attending design team meetings at client offices and on site when necessary.

Position Requirements

• Experience within the residential housing sector, working with national house builders advantageous.
• Have an eye for detail
• Prepare accurate, error free drawing information.
• Strong knowledge of Building Regulations and NHBC standards.
• Experience designing in traditional masonry and timber frame is essential, concrete framing and SFS experience desirable.
• Competent knowledge of building materials, specifications and construction techniques.
• Ability to work within a team and offer experience to the team when required.
• Excellent time management skills with the ability to organise & prioritise workload effectively
• Possess good communication skills.
• Proficient with AutoCAD and Revit.
• I.T. literate in Microsoft and Adobe packages.
• Possess Full UK Driving licence and own transport
• Willingness to travel

Minimum Qualification(s) Required

• ONC/HNC in construction related course
• 3 GCSEs at C or above, to include English and Mathematics

Essential Personal Attributes

• Methodical & Organised
• Good timekeeping & Communication skills
• A team player and of personable smart character

Hours of work
37.5 hours week (Flexible Hours: Start 7.30-9:30am - Finish 4:00-5:30)
7.5 hour core working day with 30 minute (min) to 1 hour lunch break.

Principal Embedded Software Engineer
Bristol (Hybrid)
Salary: Up to £80,000

Im currently recruiting on behalf of a highly innovative technology business working at the forefront of embedded safety-critical systems. This is an excellent opportunity for an experienced Senior Principal Embedded Software Engineer to lead the development of cutting-edge real-time software used in complex regulatedenvironments.

The Role

Youll take ownership of a team developing a safety-critical Real-Time Operating System (RTOS) used across advanced engineering sectors. This is a leadership role combining hands-on technical expertise with team management and project delivery.

Key responsibilities include:

• Leading, mentoring, and growing a team of embedded software engineers
• Overseeing full software lifecycle: design, development, testing, and deployment
• Driving best practices in embedded C development and code quality
• Managing multiple projects, ensuring delivery to high safety and quality standards
• Collaborating with cross-functional teams and external stakeholders

About You

To be successful, youll bring:

• Strong experience in embedded software development within safety-critical environments
• Expertise in RTOS (e.g. FreeRTOS or similar)
• Proficiency in C (and ideally low-level/processor-level development)
• Proven leadership or team management experience
• Knowledge of standards such as DO-178C, ISO 26262, or IEC 61508 (highly desirable)

Whats on Offer

• Salary up to £80,000
• Hybrid working (3 days onsite)
• Bonus + enhanced pension
• Strong career progression and exposure to cutting-edge technology
• Supportive, collaborative engineering culture

If youre looking to step into a senior leadership role while staying close to the technology, this is a fantastic opportunity to make a real impact.

Job Title: Principal Embedded Software Engineer Location: Bristol City Centre - 3 Days Per Week On-Site Salary - Up to £80,000 + Bonus & Benefits (Depending on Experience) Summary: This is a fantastic opportunity for an experienced engineer with a passion for leadership and a background in safety-critical embedded software to step into a high-impact role, driving both technical delivery and team performance. Responsibilities: Leading, mentoring, and managing a team of embedded software engineers in a collaborative and high-performing environment. Overseeing the full software development lifecycle – from requirements and design through to implementation, testing, and maintenance. Collaborating with cross-functional teams, including project management and QA, to ensure seamless and timely delivery of projects. Defining project scope and deliverables, aligning development with customer requirements and strategic goals. Conducting code reviews, promoting engineering best practices, and ensuring coding standards are upheld. Troubleshooting and resolving technical challenges while managing risk and maintaining timelines. Driving continuous improvement, fostering innovation, and supporting professional growth within your team. Required Skills & Experience: Proven experience in embedded software development within a safety-critical environment. Solid understanding of embedded systems and RTOS Strong programming skills in C and assembler. Demonstrated leadership experience with the ability to mentor, motivate, and manage engineering teams. Experience in project management, including planning, scheduling, and resource allocation. Ability to manage multiple concurrent projects effectively. Comprehensive experience across the full software development lifecycle. Please apply to find out more

Company Description ⚡️ About Assystem At Assystem, our mission is to accelerate the energy transition worldwide. Our 8,000 Switchers combine engineering expertise with advanced digital technologies to deliver complex infrastructure solutions. In the UK, we contribute to major nuclear programmes including Hinkley Point C, Sizewell C and future Small Modular Reactors (SMRs). Our digital engineering and data capabilities are key to enabling efficient, data-driven delivery across the asset lifecycle. Why Join the Community of Switchers? Join one of the three largest nuclear engineering companies in the world and play a key role in delivering high-quality asset data for major infrastructure programmes. At Assystem, your future team operates at the centre of digital engineering, ensuring data integrity and configuration management across complex projects. You will be part of a collaborative environment where data excellence directly supports safe and efficient project delivery. Job Description The Job Mission This hybrid role is suited to candidates able to commute to Bristol or relocate nearby, . You will support digital configuration and asset data delivery within a major nuclear project environment. Working closely with your future team, you will ensure data quality, integrity and readiness for operational systems. • Populate asset management systems with accurate equipment identifiers and configuration attributes. • Perform data validation and quality assurance across equipment installation and configuration datasets. • Maintain asset and system schedules, resolving discrepancies and data anomalies effectively. • Support development of datasets aligned with business rules for enterprise asset systems. • Produce regular performance reports to support management review and decision-making processes. • Collaborate with construction, completions and handover teams to ensure data consistency. • Support digital configuration processes through structured work management activities. • Identify and resolve data issues, ensuring alignment with configuration and change management processes. Qualifications Essential Skills • Strong experience in asset data analysis, validation and data quality assurance processes. • Proficiency in tools such as Power BI, SQL, Python and data processing platforms. • Experience working with asset management or enterprise data systems. • Ability to manage data integrity independently within complex project environments. • Knowledge of configuration management standards and change control processes. • Strong organisational skills with ability to manage multiple concurrent tasks. • Excellent communication skills to present data issues to multidisciplinary teams. • Strong analytical and numerical capability with high attention to detail. ✔️ Desired Skills • Degree, HNC or HND in data engineering or related discipline. • Experience working within nuclear or highly regulated infrastructure projects. • Familiarity with enterprise asset management systems such as Asset Suite. • Experience supporting work pack or document management processes. • Understanding of project lifecycle data requirements from construction to operations. Additional Information Why Apply? Join Assystem and become a key player in delivering critical nuclear projects that shape the future of energy. Embrace this opportunity to excel in a dynamic environment where your expertise and leadership will drive global innovation. Your Benefits Package Hybrid Working – Flexibility to work from home and the office ️ 25 Days Annual Leave + Bank Holidays Buy & Sell Holiday – Make your time off work for you 8% Company Pension Contributions ️ Income Protection & 3x Salary Death-in-Service Cover Competitive Sick Pay – Support when you need it Healthcare Cash Plan – Claim back on dental, optical & more Free Digital Gym Access – Expert-led fitness classes Exclusive Discounts – Restaurants, days out & top brands 24/7 Employee Support Line – Mental health, financial & legal help Cycle to Work Scheme – Save money & go green Free Flu Jabs & Eye Test Vouchers Paid Professional Membership Fees ❤️ Volunteer Days – Make a difference on company time We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter, bring your unique contributions and help us shape the future! We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future