Principal Security Engineer - Automotive

Hamilton Barnes Associates Limited

Brackley

On-site

GBP 90,000 - 110,000

Full time

11 days ago

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Benefits offered by this job

100% renewable energy powering the br

On-site gym

Subsidised on-site restaurant

On-site parking with EV charging

Generous bonus scheme

Mercedes car lease scheme

Private medical cover

On-site GP

Life assurance

25 days annual leave

Family-friendly working environment

Employee wellbeing programmes

Job summary

Hamilton Barnes Associates Limited is seeking a Principal Information Security Engineer to own day-to-day security operations and the technology stack supporting cyber defence. The role is hands-on, delivering technical outcomes with a focus on operational excellence while guiding a small security team at our Brackley headquarters.

You will own and operate security tooling, drive improvements, and partner with IT to enable risk-informed decisions.

Qualifications

Proven experience running hands-on security operations in a complex environment.
Strong understanding of attacker tactics, techniques and procedures, and how to defend against them.
Experience owning and working directly within a security tooling stack (configuration, tuning, integrations).
Broad, fundamentals-led understanding across identity, endpoint and email security (tool-agnostic mindset).
Strong communication skills, with the ability to work effectively across technical teams and business stakeholders.
High attention to detail and strong operational discipline.
A hands-on security engineer first, who enjoys being in the tooling and close to the detail.
Comfortable providing direction within a small team while remaining directly involved in delivery.

Responsibilities

Lead day-to-day security operations, including monitoring, triage, investigation and incident response through to recovery.
Own and operate the security tooling stack, remaining hands-on in configuration, tuning, integrations and continuous improvement.
Drive practical improvements that strengthen controls, reduce attack paths and improve signal over noise.
Act as a trusted partner to IT and the wider business, providing clear, pragmatic security advice and enabling risk-informed decisions.
Translate developments in the threat landscape into tangible updates to controls and delivery priorities.
Work directly within a small, high-performing security team, contributing to delivery rather than operating at a distance.
Provide direction and guidance, helping prioritise work and maintain high operational standards while remaining hands-on.
Manage and optimise third-party relationships (e.g. MSSPs, tooling vendors), ensuring performance and value.

Skills

Hands-on security ops

Threat ttp knowledge

Security tooling stack

Identity/endpoint security

Communication skills

Operational discipline

Hands-on engineering

Small team delivery

Ownership and delivery

Risk-informed decisions

Tools

CrowdStrike

SOAR scripting

Managed security providers

Job description

Keen to join a company that champions growth and development?

Join a high-performance Formula 1 organisation focused on innovation, precision, and operational excellence across manufacturing and trackside operations worldwide. The organisation is committed to setting new standards through technical expertise, collaboration, and continuous improvement.

This company is looking for a Principal Information Security Engineer to take technical ownership of day-to-day security operations and the technology stack supporting cyber defence. The role focuses on hands-on engineering, technical delivery, and operational excellence, while providing direction within a small team and helping protect systems across factory and trackside environments. The position requires a minimum of three days onsite per week at the Brackley headquarters.

Responsibilities

Lead day-to-day security operations, including monitoring, triage, investigation and incident response through to recovery
Own and operate the security tooling stack, remaining hands-on in configuration, tuning, integrations and continuous improvement
Drive practical improvements that strengthen controls, reduce attack paths and improve signal over noise
Act as a trusted partner to IT and the wider business, providing clear, pragmatic security advice and enabling risk-informed decisions
Translate developments in the threat landscape into tangible updates to controls and delivery priorities
Work directly within a small, high-performing security team, contributing to delivery rather than operating at a distance
Provide direction and guidance, helping prioritise work and maintain high operational standards while remaining hands-on
Manage and optimise third-party relationships (e.g. MSSPs, tooling vendors), ensuring performance and value

Skills/Must Have

Proven experience running hands-on security operations in a complex environment
Strong understanding of attacker tactics, techniques and procedures, and how to defend against them
Experience owning and working directly within a security tooling stack (configuration, tuning, integrations)
Broad, fundamentals-led understanding across identity, endpoint and email security (tool-agnostic mindset)
Strong communication skills, with the ability to work effectively across technical teams and business stakeholders
High attention to detail and strong operational discipline
A hands-on security engineer first, who enjoys being in the tooling and close to the detail
Comfortable providing direction within a small team while remaining directly involved in delivery
Driven, tenacious and outcome-focused, with a strong bias for completing work and closing the loop
Pragmatic and adaptable, able to balance risk, pace and delivery without over-engineering
Calm under pressure, particularly during incidents or time-critical scenarios
Curious and proactive, with a strong grounding in security fundamentals rather than reliance on specific tools
Motivated by ownership, impact and hands-on contribution within a small team environment