DXC Technology
HSS Senior Security Engineer
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Job Description
Senior HSS Senior Security Engineer
LOCATION: Central London - 5 days on site.
Due to security vetting requirements candidates must be UK nationals or sole British citizens with no dual nationality and resided in the UK 10 years or over.
About DXC Technology
DXC Technology is committed to building diverse, inclusive teams where everyone can thrive. We warmly welcome applications from people of all backgrounds and particularly encourage interest from women, underrepresented groups, and neurodivergent candidates. We are happy to provide reasonable adjustments throughout the hiring process and are dedicated to offering a supportive, flexible, and accessible working environment.
At DXC Technology, delivering excellence for our customers and colleagues is more than just a motto, it’s something we strive towards constantly through our work. Every day we deliver mission critical services in a secure environment whilst promoting our people first agenda, a real sense of community and a healthy work-life balance. Our consistently positive customer feedback and continuous growth help us cement our place as one of the world’s leading IT solutions enterprises, helping us deliver services and solutions in both challenging and exciting situations.
We believe that hiring a diverse team is crucial to our success and our recruiting decisions are based on your skills and experience as an individual. We actively encourage consistent growth on our journey towards a culture of inclusion and recognise that the people we employ are vital to providing a great customer experience. As such, we have a variety of training, support, and tools available to aid in your continual personal and professional development. Our ongoing goal is to drive innovation and modernise operations across the board, which includes furthering the skills of our colleagues. At DXC, building a better you, builds a better us.
Role Responsibilities
- Provide second- and third-line technical support for security platforms, including incident and problem management, ensuring timely resolution and adherence to service level agreements (SLAs).
- Monitor the performance and availability of security platforms, proactively identifying and resolving issues to maintain service reliability and stability.
- Develop and maintain technical documentation, including operational procedures, system configurations, and knowledge base articles.
- Lead the analysis, design, implementation, and ongoing support of security toolsets and integrations across the wider technology environment.
- Collaborate within the wider Account Security Team to support the development, implementation, and continuous improvement of security processes, controls, and policies.
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What You Will Bring To The Team
- Strong organisational and time management skills, with the ability to manage multiple priorities effectively.
- Experience working in line with ITIL best practices for incident, problem, and change management.
- A continuous improvement mindset, focused on identifying root causes across processes and technical environments, while delivering long-term solutions.
- A collaborative approach, with a willingness to share knowledge and learn from others.
- A proactive and analytical mindset, with the ability to identify risks, anticipate potential issues, and implement preventative measures.
- Experience contributing to the development and improvement of security capabilities and services within client environments.
Desirable Skills And Technologies
- Strong understanding of networking principles and system communications.
- Experience in the design, implementation, and ongoing management of security toolsets and technologies across on-premises and cloud environments, including:
- Endpoint Security (Trellix (McAfee), Symantec (Broadcom), or similar)
- Vulnerability Management (Qualys, Tenable, or similar)
- Privileged Access Management (Cyber Ark, HashiCorp, or similar)
- Cloud Security (AWS: Guard Duty/Inspector/Security Hub, Azure: Sentinel, Defender)
- Working knowledge across key infrastructure and security domains, including:
- Windows and Linux Operating Systems
- PKI
- Anti-Virus and Endpoint Protection
- Firewalls
- Application and Device Control
- Security Monitoring
- Infrastructure and development tooling (e.g., Git, Ansible, Terraform, Docker) and associated security considerations
- Proficient in PowerShell, Bash, or similar scripting languages.
- Solid understanding of non-functional and quality requirements when designing security toolsets.
- Foundational understanding of governance, risk, and compliance (GRC) frameworks and principles
- Ability to articulate technical concepts and solutions to a broad range of stakeholders, including non-technical audiences.
- Ability to design and deliver proof of concept solutions to evaluate security tools and integrations.
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What We Will Do For You
- Competitive compensation
- Pension scheme
- DXC Select – Our comprehensive benefits package (includes private health/medical insurance, childcare vouchers, gym membership, and more)
- Perks at Work (discounts on technology, groceries, travel, and more)
- DXC incentives (recognition tools, employee lunches, regular social events, etc.)
At DXC Technology, we believe strong connections and community are key to our success. Our work model prioritizes in-person collaboration while offering flexibility to support wellbeing, productivity, individual work styles, and life circumstances. We’re committed to fostering an inclusive environment where everyone can thrive.
Recruitment Fraud Notice
Recruitment fraud is a scheme in which fictitious job opportunities are offered to job seekers typically through online services, such as false websites, or through unsolicited emails claiming to be from the company. These emails may request recipients to provide personal information or to make payments as part of their illegitimate recruiting process. DXC does not make offers of employment via social media networks and DXC never asks for any money or payments from applicants at any point in the recruitment process, nor ask a job seeker to purchase IT or other equipment on our behalf. More information on employment scams is available here.
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