IT Manager and Security Officer

JR United Kingdom; Southampton; On-site; GBP 50,000 - 70,000; Full time

Job summary

Join a leading technology company as an IT Manager and Security Officer in Southampton. You'll be responsible for overseeing IT operations, driving innovation in system performance, and ensuring compliance with cyber security standards in an environment that promotes inclusivity and professional growth. This role offers competitive compensation, flexibility, and opportunities for continuous learning.

Benefits

Life Insurance

Health Insurance

Pension Fund

Travel Insurance

Flexibility: Flexible Hours

Continuous Learning and Mentorship Programs

Competitive Salary and Bonus

Free Coffee and Onsite Parking

Up to 12 Fridays Off Per Year

Inclusive Work Environment

Qualifications

• Strong technical background in network infrastructure, IT management, and cyber security.
• Experience with ISO 27001 and UK Cyber Essentials compliance.

Responsibilities

• Oversee and support international IT operations.
• Manage and lead IT support teams and oversee engineering operations.
• Implement cyber security plans aligned with best practices.

Skills

Network Infrastructure

IT Management

Cyber Security

Office 365 Administration

Automation Tools

Job description

Social network you want to login/join with:

IT Manager and Security Officer, southampton

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Client:

Mercury Systems

Location:

southampton, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Views:

11

Posted:

06.06.2025

Expiry Date:

21.07.2025

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Job Description:

Join Mercury Systems as IT Manager and Security Officer – Based in Silchester

Why Mercury Computer Systems?

Mercury Systems is dedicated to advancing aerospace and defense technology to make the world safer and more secure. Our mission is to bring cutting-edge commercial technologies to the tactical edge, enabling our customers to accelerate innovation and gain decision superiority.

Our Culture

At Mercury, we foster a collaborative, transparent, and supportive work environment that encourages continuous learning, professional growth, and open communication. Whether you’re a seasoned expert.

About the Role - As an IT Manager and Security Officer, you will be responsible of overseeing and supporting our international IT operations. This role will serve as the primary point of contact for IT-related requirements at our international sites and will work closely with the corporate IT team in the US to ensure global alignment. The ideal candidate will have strong leadership, technical expertise, and problem-solving skills to manage IT services efficiently, drive innovation, and enhance system performance.

Responsibilities

• Act as the main point of contact for IT needs across international sites.
• Work closely with the corporate IT team in the US to ensure global IT strategy integration.
• Manage and lead IT support teams and oversee engineering operations.
• Provide clear and effective communication, simplifying complex IT concepts for stakeholders.
• Lead high-priority projects, ensuring timely execution and effective collaboration.
• Maintain team performance, overseeing IT personnel, system upgrades, and resource allocation.
• Manage system obsolescence and refresh cycles to keep infrastructure up-to-date.

End User Services:

• Oversee end-user device management, including provisioning, upgrades, and retirement.
• Administer Office 365 (O365) systems and provide user support.
• Enhance IT operations by automating tasks using Shell, Python, or PowerShell.
• Strengthen incident and change management processes for efficiency.
• Offer user assistance during IT optimizations or transitions.
• Ensure seamless interconnectivity with external networks and mobile accessibility for users.

Network Infrastructure:

• Troubleshoot performance issues in a multi-user, high-availability environment.
• Document and reference infrastructure components, software, and application links for clarity
• Develop technical recommendations and implement innovative infrastructure solutions.

Security and Compliance:

• Effectively oversee and lead site security for physical personnel and cyber security.
• Implement the global cyber security plan to align with best practices.
• Maintain security requirements in compliance with ISO 27001 and UK Cyber Essentials.
• Conduct and supervise security training to ensure adherence to security protocols.

Business and Engineering Systems:

• Analyze business requirements and translate them into technical specifications.
• Develop and maintain IT infrastructure to support business operations effectively.
• Ensure integration of new technologies into existing systems for seamless functionality.
• Utilize Oracle knowledge to manage databases and applications.
• Conduct data analysis to support informed decision-making processes.
• Collaborate with stakeholders to identify and implement process improvements.

Additional Responsibilities:

• Travel up to 10% as required.
• Manage transition service arrangements with partners.

Qualifications & Skills:

• Strong technical background in network infrastructure, IT management, and cyber security.
• Experience with ISO 27001, UK Cyber Essentials, and compliance frameworks.
• Proficiency in Office 365 administration and automation tools (Shell, Python, PowerShell).
• Leadership abilities with experience in team management and performance oversight.
• Excellent written and verbal communication skills.
• Ability to collaborate across multidisciplinary teams to drive informed decisions.
• Experience with Oracle databases and business applications.

What We Offer

• Flexibility: flexible hours.
• Benefits: life insurance, health insurance, pension fund, travel insurance and discount platform.
• Time Off: Enjoy up to 12 Fridays off per year!
• Work Environment: Free coffee, fruit, and onsite parking.
• Growth: Continuous learning, mentorship programs, and challenging projects.
• Compensation: Competitive salary aligned with market standards and bonus.
• Inclusion: An inclusive culture that values your ideas and impact.

At Mercury Computer Systems, we are committed to fostering a culture of inclusivity and diversity. We believe that equal opportunity is fundamental to building a dynamic and innovative workforce.

We provide employment opportunities free from discrimination, ensuring fair treatment for all individuals regardless of race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, marital status, veteran status, or any other legally protected characteristic.

Our commitment extends beyond compliance—we actively promote diversity and inclusivity in our hiring practices, workplace policies, and career development opportunities. We aim to create an environment where everyone feels valued, respected, and empowered to contribute their unique talents to Mercury Computer Systems' success.

Together, we strive to achieve equal opportunities for all while building a collaborative and supportive workplace.

Unfortunately, we can not take a non UK national due to government security requirement.