Senior Analyst, Security Operations Center (SOC)

MarketAxess is on a journey to digitally transform one of the world’s largest financial markets, enabling the shift from analog, phone-based trading to a fully electronic marketplace. Our platform makes trading fixed-income more accessible, ultimately improving transparency, efficiency, and competition in the marketplace.

The Senior Analyst is responsible for monitoring, detecting, and responding to security incidents and threats to safeguard the firm’s IT infrastructure. This role involves analyzing security alerts, creating & maintaining playbooks, and implementing measures to mitigate risks. The ideal candidate will possess strong analytical skills, knowledge of cybersecurity tools, the ability to work collaboratively, as well as basic scripting (Python, PowerShell) abilities.

How You’ll Help Take Us There

• Monitor and analyze security infrastructure to ensure the integrity, confidentiality, and availability of sensitive data and systems.
• Assist in conducting in-depth security investigations, analyzing logs, network traffic, and other data sources to identify root causes, assess impact, and gather evidence for response and mitigation actions.
• Develop and maintain threat detection and response playbooks, incorporating industry best practices, regulatory requirements, and lessons learned from previous incidents.
• Conduct proactive cyber threat hunting activities to identify advanced, persistent, or previously undetected threats across the environment.
• Assist in maintenance of the threat intelligence lifecycle, including collection, analysis, dissemination, and continuous improvement to support detection and response efforts.
• Collaborate with cross-functional teams to develop and implement coordinated security strategies, policies, and procedures.
• Be part of a 24/7/365 SOC, that includes a rotating on-call schedule for overnights/weekends.

What We’re Looking For

• 3+ years of Incident Response Experience: Hands-on experience responding to security incidents, including investigating and mitigating threats such as malware infections, phishing attacks, and network intrusions.
• Exceptional analytical and problem-solving skills, with the ability to quickly assess security alerts, distinguish between false positives and true threats, and take appropriate actions.
• Strong written and verbal communication skills, with the ability to clearly report on security incidents and explain technical details to non-technical stakeholders.
• Ability to work effectively in a fast-paced environment where threats and challenges are constantly evolving.
• Ability to leverage AI tools to accelerate security analysis, investigation, documentation, and reporting while maintaining sound security judgment.
• Understanding AI risk considerations, including data exposure, model misuse, and secure use of AI tools in regulated environments.

What You Can Expect from Us

• Central Location: based at our city offices near St Paul’s.
• Free Food: We provide lunch each day of the week when the employee attends the office via our vendor Feedr as well as breakfast cereals, office snacks and drinks from our free vending machines.
• Paid Time Off: 25 days annual leave entitlement plus 2 charity days.
• Reward for your service: We offer a two-week bonus holiday after completing each 5 years of service.
• Core benefits: Besides competitive standard benefits package we offer private medical (PMI) for family, Cash Plan, health screenings, dental cover, 6X life assurance, critical illness cover, income protection, pension, car leasing (Tusker electronic cars), reimbursement for wellness stipend, interest free season ticket loan and a “Share Incentive” plan.
• Tuition Assistance and Professional Training: Benefit from on-demand learning, boot camps, and opportunities to attend conferences.

Collaboration and innovation are integral to our success – it’s how we got to where we are and how we’ll maintain and grow our competitive advantage. We believe this best happens in an office environment. Employees in Technology work in the office 2 or more days a week. This approach still allows for flexibility depending on the business function you work within but also helps us maintain a collaborative office environment long-term.