Senior Cyber Software Engineer/ Technical Lead

Senior Cyber Software Engineer/Technical Lead at BAE Systems Digital Intelligence in London. You will deliver high-assurance software for national security and cyber defence, collaborating with a cross-functional team to design secure, scalable solutions. You will mentor junior engineers, drive code quality, and adopt modern development practices across on-site and hybrid settings. The role emphasizes security-minded design, adaptability to new technologies, and clear communication with diverse audiences. You will join a mission-focused environment shaping technology-led defence and security outcomes.

• flexible working arrangements
• on-site role in London
• hybrid working options
• lifelong learning opportunities
• wellbeing and family support
• inclusive culture and belonging

• Technical delivery across development methodologies with secure-by-design focus
• Mentorship and team leadership, peer review, knowledge sharing
• Design, develop, test, and document software per best practices with CI where appropriate
• Adapt to emerging technologies and assess risk
• Identify and mitigate security flaws during design and implementation

• Familiarity with IDEs, debuggers, source control; unit testing, mocking, CI, TDD
• Knowledge of high-assurance development principles and IT security awareness
• Intermediate to advanced computing principles (stack/heap, compiled/interpreted)
• Proficiency in at least one solution language (C++, Java, C#) and one utility language (Python, JavaScript, Perl, PowerShell)
• Ability to use multiple major operating systems and learn new languages quickly
• Strong communication of technical topics to varied audiences; mentoring/leadership experience

• Mentoring and leadership experience
• Effective communication to both technical and non-technical audiences
• Collaborative teamwork
• C++, Java, or C#; Python, JavaScript, Perl, or PowerShell
• Unit testing, mocking, CI, TDD
• High-assurance development principles