Senior Detection and Response Engineer

Location: Cambridge, UK – Hybrid (Candidates must be able to attend the office once per week. Flexible working options available.)

Do you want to help build a world-class incident response capability that protects millions of players across one of the world’s most iconic gaming studios?

As a Security Engineer at Jagex, you’ll help develop a best-in-class incident response function that navigates challenging security incidents, drives process improvement, and fosters an open, learning-driven security culture. You’ll also play a key role in building the tools, automations, and detection infrastructure that allow us to scale our detection and response capability across threats to both our studio and our live gaming environments. This role sits within our Cyber team and includes participation in an on-call rotation.

What you’ll be doing

• Responding to security events, triaging alerts, performing investigations and incident analysis, and communicating findings clearly.
• Improving processes, procedures, and technologies used for detection and response so we continually learn from each incident.
• Developing and running tools to gather security telemetry data from cloud production systems.
• Automating workflows to improve identification and response times for security events.
• Building and optimising detection rules to ensure focus on high-value alerts.
• Creating and maintaining runbooks and incident playbooks for new and existing detections.
• Leading threat hunting practices and identifying product and infrastructure signals to surface attacks.
• Creating and refining detections, workflows, and playbooks to accelerate incident response.
• Collaborating cross-functionally with engineering teams across the studio.

What we’re looking for

• 8+ years’ experience as a security engineer, including monitoring, incident response, and threat hunting in cloud environments.
• Demonstrable expertise in AWS security controls and services.
• Proven ability to lead complex investigations involving multiple stakeholders.
• Experience coding for automation, alert enrichment, and detection development.
• Demonstrable ability to analyse endpoint, network, and application logs for anomalous events.
• Experience with SIEM and SOAR platforms and cloud-scale data analysis.
• Knowledge of adversary TTPs and MITRE ATT&CK principles.
• Experience with OS internals and forensics across macOS, Windows, and Linux.
• Experience developing tooling using DevOps technologies and programming languages.
• Strong understanding of cloud environments, operations, and SaaS engineering practices.
• Experience managing incident response activities and contributing to security improvements.

What we offer

When you join Jagex you can look forward to a generous Perks & Benefits package including:
Private Healthcare, including Dental Plan.
Minimum 6% Pension contributions.
Employee Assistance Programme & onsite Counselling.
Life Insurance.
Discretionary annual performance bonus.
Enhanced family leave policies from day 1.
Flexible working hours.
25 days annual leave + Bank holidays & the option to buy/sell holidays + so much more!

About Jagex

We are Jagex: The RuneScape Company- home to one of gaming’s most enduring success stories. We create deep, community-powered games with worlds that evolve, inspire, and endure. Our flagship MMORPG franchise, RuneScape has welcomed over 300 million player accounts, inspiring generations of players across PC and mobile for 25 years.

As we begin our 26th year, we are accelerating our strategy to expand RuneScape into a broader ecosystem of forever games and connected experiences, grounded in a renewed commitment to integrity and fair play. This includes the reduction of monetisation mechanics, as well as the launch of RuneScape: DragonWilds into Steam Early Access in 2025 representing a major step in building a multi-genre future for the RuneScape universe. We remain focused on building enduring worlds, empowering player-led innovation, and laying the foundations for the boldest era in RuneScape’s history. For more information, visit www.jagex.com.

Headquartered in Cambridge, United Kingdom, We are  home to passionate creators, storytellers, engineers, and even a few dreamers, all united by a single mission- to shape the future of online worlds and empower players to make them their own. We’re looking for people to join us who share our ambitions & values - We foster an inclusive workplace built on trust, autonomy, and a shared passion for creating experiences which inspire our communities. Our values guide everything we do: We Embrace Fellowship by collaborating and sharing openly. We Hone our Craft by always learning and improving; We Honour our Vows by being honest and transparent; We are our Customers’ Heroes by striving to understand our team & player needs, and We Seize The Day by making the most of every opportunity.

Join us. The next era of RuneScape - and the next chapter of Jagex: The RuneScape Company - starts now.

We are committed to providing equal opportunities and creating an environment where everyone can thrive. We welcome applications from all backgrounds, and we recruit, develop, and promote based on merit and ability.

If you require any reasonable adjustments to support you during the recruitment process, please let us know when you’re invited to interview.