Lead Software Security Engineer - Embedded (Hybrid)

Defence; Bristol; Hybrid; GBP 45,000 - 65,000; Full time

Job summary

Defence Bristol is seeking an experienced software security professional to lead security across the full product lifecycle in a regulated environment. You will guide architecture, coding standards and risk mitigation while collaborating with cross‑functional teams on ambitious defence projects.

You will mentor engineers, perform security assessments, drive improvements, and maintain documentation. A STEM degree and British citizenship with security clearance are required to succeed in this

Qualifications

• Experience developing complex software in regulated or security-conscious sectors.
• Practical software security experience and familiarity with relevant standards.
• Strong collaboration, leadership and communication skills.
• Interest in emerging technologies and current security challenges.
• Embedded software/firmware experience is beneficial.
• A STEM degree or equivalent experience.
• British citizen or dual UK national due to security clearance.
• Comfortable working across disciplines.

Responsibilities

• Lead security aspects of product development across the full lifecycle.
• Provide hands-on technical guidance to software teams.
• Advise on security requirements, architecture, coding standards and best practices.
• Support technology and framework evaluation and selection for software projects.
• Conduct security assessments and risk analysis, identify vulnerabilities and define mitigations.
• Drive continuous improvement by refining processes, tools and methodologies.
• Maintain clear security documentation, processes and guidelines.
• Produce security reporting and metrics on activities, vulnerabilities and remediation.

Skills

Software security

Technical leadership

Communication

Security standards

Emerging technologies

Team collaboration

Education

STEM degree

Job description

Defence Bristol is seeking an experienced software security professional to lead security across the full product lifecycle in a regulated environment. You will guide architecture, coding standards and risk mitigation while collaborating with cross‑functional teams on ambitious defence projects.

You will mentor engineers, perform security assessments, drive improvements, and maintain documentation. A STEM degree and British citizenship with security clearance are required to succeed in this