Security Expert-Detection & Response
jd · GBR-London, United Kingdom
Who We Are
At JD.com, also known as JINGDONG, we are building one of the world’s most trusted technology and supply chain ecosystems. What started as a bold idea in China has evolved into a NASDAQ-listed, Fortune 44 global enterprise serving over 700 million active customers. Powered by advanced logistics, innovative technology, and a commitment to integrity, JD.com operates across retail, logistics, technology, property and more, creating solutions that make everyday life smarter, faster, and more connected.
Our Global Reach
JD.com is expanding its international footprint through a digitally intelligent, cross-border supply chain and world-class logistics network, supported by platforms such as Joybuy, which brings trusted products to customers worldwide. Today, our teams operate across China, the U.S., U.K., Netherlands, France, Germany, Spain, Brazil, Hungary, Japan, South Korea, Australia, Thailand, Vietnam, Malaysia, Indonesia, Saudi Arabia, the UAE and beyond, reaching customers in every corner of the world.
Learn more about who we are and what we do: https://corporate.jd.com/
What We Offer
Joining JD.com means becoming part of a company where people, innovation, and impact go hand in hand. We offer a competitive salary, a great location, and a supportive, people-first culture where your growth truly matters. With access to global projects, learning opportunities, and an inclusive environment that values every voice, you’ll have the space to shape the future with us.
About The Team
You’ll be joining the JD.com team, which values collaboration, ownership, and a commitment to delivering high-quality results in a fast-paced, dynamic environment.
Role SummaryYou will lead high-impact incidents and investigations, drive continuous improvements in defense, detection and response capabilities, and help scale security operations through automation and intelligent workflows.
Operating within a 24/7 global environment (follow the sun model), you will own the full incident lifecycle end-to-end - from detection and triage through containment, eradication, and recovery - while partnering cross-functionally to strengthen Joybuy's overall security posture. A key aspect of this role is leveraging automation and AI-driven approaches to improve detection fidelity, accelerate investigations, and reduce response times. You will help shape how modern tooling and data are applied to stay ahead of evolving adversary tactics.
This role is ideal for someone who thrives in high-tempo environments, brings strong Digital Forensics and Incident Response (DFIR) expertise, and is equally passionate about operational excellence and building scalable detection and response systems and workflows.
Minimum qualifications- Strong experience in security incident response and investigations in cloud-first environments
- Hands-on experience with SIEM, EDR, and/or detection engineering
- Experience with cloud platforms (AWS & GCP)
- Familiarity with threat intelligence and adversary tactics (e.g., MITRE ATT&CK)
- Experience building or working with automation (e.g., Python, scripting, SOAR platforms)
- Ability to operate effectively during high-severity incidents
- Excellent written communication skills with a passion for clear, actionable documentation
- Growth mindset with a proactive approach to identifying and mitigating security risks
Preferred qualifications- Certifications in offensive security, security engineering, cyber defense, or cloud platforms
- Demonstrable experience building and deploying agentic AI workflows to support detection, response, and remediation
- Experience in security competitions, Capture the Flags (CTFs) or testing platforms such as Hack The Box, TryHackMe, Overthewire, JD SRC
Responsibilities- Lead and coordinate end-to-end incident response for high-severity security events within a 24/7 global on-call model, with this role operating during EMEA business hours
- Prepare clear executive communications that keep stakeholders informed during incidents
- Investigate complex security incidents across cloud environments, applying strong DFIR methodologies
- Build and enhance automation and AI-assisted workflows to improve triage, investigation speed, and response consistency
- Partner with Threat Intelligence to contextualize threats and improve detection coverage
- Conduct root cause analysis (RCA) and lead post-incident reviews to drive continuous improvement and risk reduction
- Develop and maintain runbooks, playbooks, and operational documentation
- Mentor other engineers and help elevate the team’s overall incident response maturity
At JD.com, we’re committed to building a diverse and inclusive workplace where everyone can thrive. We’re proud to be an equal opportunity employer and make all employment decisions without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, disability, age, veteran status, or any other protected characteristic.
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