Full-Time

Cybersecurity Defense Lead

Ascot

Ascot

1,001-5,000 employees

Global specialty insurer and reinsurer.

No salary listed

London, UK

Hybrid

Category
IT & Security (1)
Required Skills
Malware Analysis
Risk Management
penetration testing
Requirements
  • 12 years of extensive cybersecurity experience, with at least 5 years in a senior leadership role and a proven track record in leading a global cyber defense function
  • Excellent written and verbal communication skills, interpersonal and collaborative skills, and the ability to communicate cybersecurity and risk-related concepts to technical and nontechnical audiences at various hierarchical levels, ranging from senior leadership to technical specialists
  • Track record of successfully managing a high-performing cybersecurity organization with the ability to motivate and mentor high-performing security teams and foster a culture of excellence
  • Knowledge of current and upcoming methodologies and trends in the cybersecurity landscape, including a deep knowledge of cyber threats, attack techniques, and cybersecurity frameworks/standards
  • Deep knowledge of threat detection and response; digital forensics and malware analysis; cloud security across the various cloud hosting platforms; endpoint detection and response; SIEM platforms and working knowledge of managed security service providers
  • Familiarity with existing and experimental cybersecurity philosophies and experience implementing leading-edge capabilities
  • Strong leadership skills to influence organizational change, build teams, and communicate security priorities effectively across the enterprise
  • Technology management skills, including security architecture design, engineering, operations, and vendor oversight
  • Business acumen to understand enterprise operations, risk tolerance, and industry dynamics
  • Analytical skills to conduct technical assessments, prioritize vulnerabilities, and develop risk treatment plans
  • Project management skills to assist with the development and execution of the cybersecurity strategy and roadmaps to strengthen and continuously improve the cybersecurity posture
  • Passion for continuous learning to stay current on advancing threats and security best practices
  • Ability to maintain a calm structured mindset even when under pressure
Responsibilities
  • Work with the CISO and take ownership of the Cybersecurity Defense function that includes, and is not limited to - strategy, improving cyber resilience, finance/budget, a service catalogue comprising of the Security Operations Center, Threat Intelligence, Threat Hunting, Insider Threat and achieving compliance with regulatory & audit requirements
  • Support other functions within the cybersecurity group to lead a coordinated effort to meet objectives – such as penetration testing, red/purple team exercises, training and awareness along with presenting at various internal forums and committees
  • Serve as a point of escalation for the L1, L2, L3 SOC Analysts, Head of SOC, MSSP, and other vendors, lead and coordinate response efforts with other groups and stakeholders with varying technical expertise, such as IT, Legal, business etc. Provide oversight and governance over the daily operations of the MSSP and SOC team at a global level, mentor and provide training to junior SOC team members
  • Oversee the incident response process, ensuring rapid identification, containment, eradication, and recovery from security incidents
  • Act as an Incident Commander during cybersecurity incidents working across incident confirmation, containment, and communicating to internal and external stakeholders
  • Manage and create incident reports, identify improvements to detect and prevent similar incidents from occurring in the future
  • Work with end users, vendors, and MSSP where appropriate on security related incident through closure
  • Stay current with evolving threats, vulnerabilities, tools, technologies and threat actor TTPs to help improve detection and response capabilities
  • Develop and refine standard operating procedures in the form of run books and playbooks for incident response and threat detection. Create and make improvements to procedures and playbooks
  • Provide oversight and guidance on the technical analysis, log reviews, and assessments of cybersecurity incidents throughout the incident management lifecycle
  • Identify opportunities of improvement with the processes, procedures, and our detection capabilities including detection use cases within our SIEM for our expanding estate using appropriate scripting languages
  • Assist with additional ad hoc projects as required
  • Run and coordinate annual cybersecurity tabletop exercises, that spread across both technical and non-technical areas and testing
Desired Qualifications
  • This position may be filled at a different level, depending on experience

Ascot Group is a global specialty insurer and reinsurer that provides property and casualty coverage through its Lloyd’s and Bermuda platforms. It underwrites risk for clients and partners and serves small and mid-sized U.S. businesses, plus it offers underwriting services to other insurers and syndicates. The company differentiates itself with a global reach via Lloyd’s and Bermuda, a dedicated SME focus in the U.S., and its partnership-based underwriting services. Its goal is to provide a broad range of durable property and casualty solutions with strong underwriting discipline and reliable claims service for clients and partner markets.

Company Size

1,001-5,000

Company Stage

Debt Financing

Total Funding

$350M

Headquarters

Hamilton, Bermuda

Founded

2001

Simplify Jobs

Simplify's Take

What believers are saying

  • Priced $350m senior notes offering bolstering capital base for growth initiatives.
  • Expanded US treaty reinsurance offerings under Justin Keith targeting profitable market growth.
  • Promoted Shanelle Burke to US CFO with 20+ years insurance finance leadership experience.

What critics are saying

  • Marc Amen interim Bermuda CEO role during Justin Keith relocation disrupts operations.
  • Heavy RenaissanceRe alumni concentration risks poaching and ceded reinsurance conflicts.
  • Rapid executive turnover and expansion may trigger credit rating downgrade by regulators.

What makes Ascot unique

  • Appointed Ashleigh Edwards as group head of Ceded Re with 30 years reinsurance experience.
  • Launched $500m Wayfare Re sidecar with Antares for expanded capital and risk diversification.
  • Strengthened board with CPP Investments and Sompo International executives enhancing governance expertise.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Life Insurance

Disability Insurance

Health Savings Account/Flexible Spending Account

Paid Holidays

Unlimited Paid Time Off

Short-term Disability

Long-term Disability

401(k) Retirement Plan

Company News

Insurance Innovation Reporter
Mar 12th, 2026
Ascot Names Shanelle Burke U.S. CFO

Ascot names Shanelle Burke U.S. CFO. Burke has been promoted to the Ascot U.S. leadership team oversee finance operations, capital management and strategy. Anthony R. O'Donnell // March 12, 2026 (Image source: Ascot website.) Ascot Group Limited (Hamilton, Bermuda) has appointed Shanelle Burke U.S. CFO. Burke joins the Ascot U.S. leadership team with responsibility for finance operations, capital management, regulatory engagement and enterprise decision support. She joined Ascot in 2020 as U.S. Controller and brings more than 20 years of insurance industry experience. "Since joining the company six years ago, Shanelle has been instrumental in helping Ascot scale with discipline and clarity, strengthening our finance capabilities alongside the business," says Mark Wilcox, Group CFO, Ascot Group. "She brings both technical expertise and actionable financial insight to the role." Burke previously held finance leadership roles at Markel and Alterra Capital Holdings and earlier worked at KPMG. "This appointment underscores the company's commitment to developing and advancing our people," says Matt Kramer, CEO, Ascot U.S. "Shanelle's understanding of the organization and ability to collaborate across teams position her well for this role as we continue to grow the business." Ascot is a global specialty insurance and reinsurance group offering property/casualty solutions. The company reported $12 billion in total assets at year-end 2024 and operates through platforms in the United States, Bermuda and London. Affiliates within the group are rated A (Excellent) by AM Best, A+ by Fitch Ratings and A by S&P Global Ratings.

PR Newswire
Feb 25th, 2026
Ascot Group appoints Patrice Walch-Watson and Christopher Gallagher to board of directors

Ascot Group Limited, a Bermuda-based global specialty insurance company, has appointed Patrice Walch-Watson and Christopher Gallagher to its board of directors. Walch-Watson serves as senior managing director, chief legal officer and corporate secretary at CPP Investments, where she leads global legal, compliance and corporate secretarial functions. She holds extensive experience in transactions, regulation and corporate governance. Gallagher brings 30 years of insurance industry experience, most recently as CEO of commercial property and casualty insurance at Sompo International, where he led transformation and profitable growth. He previously served as chief risk officer at both Sompo International and AXIS Capital. Ascot Group operates globally across the United States, Bermuda and London, with $12 billion in total assets at year-end 2024.

Reinsurance News
Jan 8th, 2026
Justin Keith to lead expansion of Ascot's US treaty reinsurance offerings

Justin Keith to lead expansion of Ascot's US treaty reinsurance offerings. Global specialty insurer and reinsurer Ascot has appointed Justin Keith, current Chief Executive Officer (CEO) of Ascot Bermuda Limited, to lead the expansion of the firm's treaty reinsurance offerings in the US market. To serve in his new role, Keith will relocate to the US later this year. This leadership transition underscores the company's commitment to strategic expansion and innovation within its specialty reinsurance business. The appointment marks the re/insurer's intention to broaden its reinsurance offerings in the US beyond its current facultative capabilities. Through the introduction of expanded treaty offerings within this market segment, the company anticipates long-term profitable growth and the opportunity to provide enhanced solutions to its growing client base. Keith brings deep expertise in developing and managing multidisciplinary treaty portfolios, making him well-equipped to drive this initiative and deliver greater value to Ascot stakeholders, explained the firm. Driven by this transition, Marc Amen, CEO of North America, will assume the responsibilities of interim CEO of Bermuda. Ascot stated, "The company is deeply grateful for Justin's leadership in Bermuda and excited about the prospects ahead as he steps into his new role." Amen commented, "We expect these updates to enable continued success and growth at Ascot. We also look forward to working more extensively with our reinsurance clients across North America and continuing to deliver the value they have come to expect from our organisation."

Newton Media Ltd
Jan 8th, 2026
Ceded Re group head Ashleigh Edwards joins to drive global platform strategy

Ceded Re group head Ashleigh Edwards joins to drive global platform strategy. Bermuda-headquartered global specialty re/insurer Ascot Group has enhanced its global platform strategy with the appointment of Ashleigh Edwards as group head of Ceded Re, adding a seasoned executive with extensive experience from RenaissanceRe, Allied World Re, Aspen Re and QBE. Edwards takes on ultimate responsibility for the Ceded Re strategy, including oversight of a multitude of reinsurance structures, placement strategies and classes of business. Edwards joins Ascot Group from RenaissanceRe, where she spent more than six years, most recently as SVP, global head of casualty reinsurance. She brings 30 years of insurance industry experience in a variety of actuarial, underwriting and leadership roles, having held previous positions at Tokio Millenium Re, Allied World Re, Aspen Re, and QBE Insurance. Based in New York, she will report to Mark Pepper, group chief underwriting officer, working closely with platform Ceded Reinsurance leaders in the UK, Bermuda and the US to align strategy and resources while strengthening partnerships and enhancing market presence across global operations. Edwards will also be tasked with harmonising Leadline Capital Partners(TM), the company's third-party capital management platform, and Ceded Re strategies to optimise long-term outcomes. Pepper said: "Ascot's global organisation continues to grow, and managing our risk exposure through our Ceded Re trading relationships is critical to our long-term financial success. Ashleigh's extensive experience, expertise and skills, alongside those of the talented professionals we have leading our regions, will support trusted partnerships with our reinsurers, enabling us to be a more perfect partner for our clients."

Newton Media Ltd
Sep 10th, 2025
Ascot appoints Stephen O'Flynn as SVP of underwriting

Ascot appoints Stephen O'Flynn as SVP of underwriting.