Senior/Principal Software Engineer

PentenAmio Pty; Tewkesbury; On-site; GBP 40,000 - 78,000; Full time

Benefits offered by this job

Life Insurance

2:30pm finish on Fridays

9-day fortnight

Private Health Scheme

EV Salary Sacrifice Scheme

Salary Sacrifice Company Pension

25 days holiday + Bank/Public Holidays

Enhanced Maternity & Paternity Leave

Free on-site parking

Casual dress code

Free fruit in the office

Job summary

PentenAmio is a leading provider of advanced digital security solutions serving the UK and Australia. We design secure embedded software for a range of hardware platforms, collaborating across multidisciplinary teams.

The Senior/Principal Software Engineer role focuses on secure, high-performance embedded systems, with opportunities to influence architecture, tooling and CI processes in a dynamic defence-inspired environment.

Qualifications

• Significant embedded software experience, including real-time systems.
• Ability to produce clear technical documentation and communicate complex concepts.
• UK citizenship and NSV clearance eligibility (SC).

Responsibilities

• Design and implement secure embedded and user-facing software applications.
• Develop and modify board support packages, low-level drivers, filesystems and middleware.
• Optimize software for performance, determinism, robustness and resource-constrained environments.
• Conduct code reviews against coding standards and support high-quality, testable software design.
• Break down technical tasks, estimate work and contribute to proposals and risk assessments.
• Produce and review technical documentation, including requirements, architecture, designs and test plans.
• Participate in Agile team activities including stand-ups, sprint planning and design reviews.
• Support software testing, debugging and integration across embedded systems and hardware platforms.
• Identify and implement improvements to development workflows, tooling and processes.
• Share technical knowledge and contribute to a collaborative engineering culture.

Skills

Embedded C

Linux RTOS

Kernel-space

Debugging

Networking TCP/IP

Tools

Yocto

Buildroot

GNU Make

CMake

Docker

Job description

About PentenAmio

PentenAmio is a leading provider of advanced digital security solutions that power national security and resilience across the UK, Australia and our allies. Focused on solving complex digital challenges that others avoid, we embrace the impossible to deliver transformative technologies that protect those who protect us.

Location: Tewkesbury
Salary: £40,000 - £78,000
Clearance Required: SC

About PentenAmio

PentenAmio is a leading provider of advanced digital security solutions that power national security and resilience across the UK, Australia and our allies. Focused on solving complex digital challenges that others avoid, we embrace the impossible to deliver transformative technologies that protect those who protect us.

Across the UK and Australia, PentenAmio combines a legacy of knowledge and proven delivery across secure mobility and AI-driven deception technologies. Our work spans Government and Defence markets across civil and military applications, powering intelligent advantage on a global scale.

Typical Activities

Working within multidisciplinary engineering teams and collaborating with Software, Engineering and Product colleagues, the Senior or Principal Software Engineer will design, develop, test and deliver complex, secure embedded software solutions across a range of COTS and bespoke hardware platforms.

You Will

• Design and implement reliable, secure and maintainable embedded and user-facing software applications
• Develop and modify board support packages, low-level drivers, filesystems and middleware
• Optimise software for performance, determinism, robustness and resource-constrained environments
• Conduct code reviews against defined coding standards and support high-quality, testable software design
• Break down technical tasks, estimate work and contribute to technical proposals, effort estimates and risk assessments
• Produce and review technical documentation, including requirements, architecture, designs and test plans
• Participate in Agile team activities including stand-ups, sprint planning and design reviews
• Support software testing, debugging and integration across embedded systems and hardware platforms
• Identify and implement improvements to development workflows, tooling, automation and engineering processes
• Share technical knowledge and contribute to a collaborative engineering culture

What We're Looking For

• Strong commercial experience developing embedded software, with significant experience using C in real-time or embedded environments
• Strong understanding of embedded software architecture, including kernel-space and user-space development
• Experience developing software for Linux and embedded operating systems, including real-time environments
• Strong embedded systems debugging and problem-solving skills
• Experience with software quality and testing practices, including unit/system testing and static or dynamic analysis
• Understanding of network communications protocols, including TCP/IP and ARP
• Experience using Git-based source control and modern branching and CI workflows
• Understanding of secure application design, defensive programming and secure software development principles
• Ability to produce clear technical documentation and communicate complex concepts to both technical and non-technical stakeholders
• Ability to work effectively within multidisciplinary engineering teams, taking ownership of technical activities and contributing to continuous improvement

Desirable

• Experience with Rust and/or Python
• Experience with build systems and tools such as Yocto, Buildroot, GNU Make or CMake
• Experience with Docker or similar container technologies for development, build and testing
• Knowledge of cryptography, secure communications protocols and key management
• Experience with formally verified microkernels, fuzzing, UML-based design or network analysis tools such as Wireshark and tcpdump

Why Work at PentenAmio?

At PentenAmio, we value our employees and offer a comprehensive benefits package, including:

• Life Insurance - 4x salary
• 2:30pm finish on Fridays
• Option to work a 9-day fortnight
• Private Health Scheme
• EV Salary Sacrifice Scheme
• Salary Sacrifice Company Pension, matched up to 10%
• 25 days holiday + Bank/Public Holidays
• Enhanced Maternity & Paternity Leave

Additional perks

• Free on-site parking
• Casual dress code
• Free fruit in the office

Qualifications & Eligibility

To Be Eligible For This Position You Must

• Have significant professional experience in embedded software engineering appropriate to a Senior or Principal level;
• Be a British citizen; and
• Hold or be eligible for UK National Security Vetting (NSV) - SC level clearance.

PentenAmio is committed to providing equality of opportunity for all. We aim to ensure our workplaces are free from discrimination and that our current and future colleagues are treated fairly and with dignity and respect. Please inform us of any reasonable adjustments that we may need to make.