Principal Software Engineer

Holt Executive Ltd; City of Edinburgh; On-site; GBP 60,000 - 80,000; Full time

Job summary

A leading company in the defense sector is seeking a Principal / Lead Software Engineer to develop innovative embedded software solutions for next-generation Electronic Warfare systems. This role involves leading a multidisciplinary team, overseeing project planning, and ensuring compliance with airborne software standards. Candidates should possess a strong background in C++, Agile methodologies, and a relevant STEM degree.

Qualifications

• Strong experience with C++ (14 or above).
• Proficiency in UML and Object-Oriented Design techniques.
• Deep understanding of the full software lifecycle in regulated environments.

Responsibilities

• Lead and mentor a multidisciplinary team of engineers.
• Drive all phases of the software lifecycle: requirements, design, implementation, testing, and integration.
• Collaborate closely with hardware and firmware teams to deliver integrated systems.

Skills

C++

UML

Object-Oriented Design

Agile methodologies

Communication

Education

Degree in Software, Electronics, or another STEM-based discipline

Tools

Jira

Confluence

Bitbucket

GitLab

Job description

2 days ago Be among the first 25 applicants

This range is provided by Holt Executive Ltd. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range

Direct message the job poster from Holt Executive Ltd

Technical Headhunter | Sourcing Elite Talent for Aerospace, Satellite & Space Tech

Are you ready to take the lead in developing cutting-edge embedded software solutions for next-generation Electronic Warfare systems? We're seeking a Principal / Lead Software Engineer to play a pivotal role in driving innovative and mission-critical solutions.

This is a fantastic opportunity for an experienced engineer to combine hands-on development with leadership, guiding a multidisciplinary team and delivering robust embedded solutions in a high-integrity environment.

What You’ll Be Doing:

• Lead and mentor a multidisciplinary team of engineers
• Take ownership of project planning, technical reviews, and reporting
• Drive all phases of the software lifecycle: requirements, design, implementation, testing, and integration
• Develop embedded software using RTOSs such as VxWorks or embedded Linux
• Deploy software across multi-core or distributed hardware platforms
• Collaborate closely with hardware and firmware teams to deliver integrated systems
• Follow standards such as RTCA DO-178C and MISRA C/C++ for airborne software development
• Contribute to design reviews, gate reviews, and agile development ceremonies

What You’ll Bring:

• Strong experience with C++(14 or above)
• Proficiency in UML and Object-Oriented Design techniques
• Deep understanding of the full software lifecycle in regulated environments
• Experience working in Agile environments (e.g. Scrum), with tools like Jira, Confluence, Bitbucket, and GitLab
• Exposure to airborne software standards such as RTCA DO-178C DAL C or similar
• Ability to communicate effectively and influence technical direction

Bonus Skills:

• Familiarity with tools like Matlab Simulink, Cameo, DOORS, or Dimensions
• Previous experience in systems requiring high design assurance and real-time performance
• Capability to operate as a technical authority or team lead

Requirements:

• Degree in Software, Electronics, or another STEM-based discipline
• Must be a UK national and eligible for full UK security clearance

Join a dynamic, forward-thinking team where you can lead innovative projects, grow technically, and contribute to the future of electronic warfare systems.

Apply now and help shape the next generation of mission-critical defence technology.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Industries

  Defense and Space Manufacturing

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