Lead Security Operations Engineer

Pleo; Greater London; Hybrid; GBP 110,000 - 150,000; Full time

Benefits offered by this job

Your own Pleo card

Lunch provided or allowance

Comprehensive private healthcare

25–28 days holiday + holidays

Hybrid and remote options

Additional 5 days holiday via salary</

Mental health & well-being support

Paid parental leave

Job summary

Pleo is seeking a Lead Security Operations Engineer to own the SecOps function, shaping the roadmap from strategy to code. You will drive detection, response, and forensics for a fast-growing fintech, reporting to senior leadership and collaborating across Fraud, DevSecOps, and Engineering teams.

You will design scalable SIEM/logging pipelines, strengthen cloud security in AWS, and automate processes to shorten response times.

Qualifications

• 10+ years in security operations, incident response, or related fields with measurable risk reduction.
• Strong development background; comfortable writing automation.
• Hands-on SOC and SIEM management including detection engineering.
• Experience in scale-up environments and cloud (AWS, with GCP exposure).
• Experience using AI or coding automation to operationalize security controls.

Responsibilities

• Build and own a structured SecOps roadmap aligned with MITRE ATT&CK, NIST, and CIS.
• Lead security investigations and forensics from detection to response.
• Design, tune, and scale SIEM/logging pipelines to preserve signal.
• Strengthen perimeter and authentication posture (WAF, auth tuning, monitoring).
• Protect data with DLP controls and align coverage with data locations.
• Improve on-call rotation, alerts, escalation paths, and SLAs.
• Automate detection and response workflows using code and AI.
• Reduce risk through compliance evidence and gap closure.
• Build dashboards providing leadership with visibility on response times and risk.
• Collaborate with engineers across teams translating threat models into shippable changes.

Skills

Security operations

Incident response

SOC engineering

SIEM management

Cloud architectures (AWS/GCP)

Automation / coding

AI in security

Fintech security

Threat modeling

Cross-functional collaboration

Tools

SIEM (Splunk/Elastic)

DLP tools

Job description

About Pleo

Messy spend management is tricky business. And tedious processes are a lose-lose situation for all involved, not just finance. At Pleo, we're changing that. We build spend solutions that make managing money seamless, empowering, and surprisingly effective for finance teams and employees alike - with a vision to help all businesses ‘go beyond’.

About Pleo

Messy spend management is tricky business. And tedious processes are a lose-lose situation for all involved, not just finance. At Pleo, we're changing that. We build spend solutions that make managing money seamless, empowering, and surprisingly effective for finance teams and employees alike - with a vision to help all businesses ‘go beyond’. The word ‘Pleo’ actually means ‘more than you’d expect’, and living by that mantra has been the secret to our success over the last 10 years. Now, we’re at a pivotal moment in our journey; every move we make has a direct impact on our 40,000+ customers, our business, and our collective success. We need people who take pride in uncovering customer needs, who turn complex problems into simple solutions, challenge the way things are done (respectfully), and always aim high. With great ambitions driving us forward, we can’t say we’ve got this whole thing figured out. And frankly, that’s half the fun! What we can say is that we’re a driven, progressive, and, importantly, a kind bunch of 850+ people from over 100 nationalities, all committed to delivering the future of business spending, together.

About The Role

We're looking for a Lead Security Operations Engineer to join our Cybersecurity team at Pleo. In this role, you'll define and deliver the SecOps roadmap, building the detection, response, and investigation capability that protects a fast-growing fintech. If you're excited about owning a security operations function end to end, from framework-based strategy through to the code that makes it run, then this is the opportunity for you!

Who You'll Be Working With And Reporting To

You'll report to our VP of Fraud & Security and work closely with Fraud, DevSecOps, Engineering, and Risk & Compliance. Our team is highly collaborative and dedicated to protecting Pleo's customers and their money. You'll also have the chance to partner with teams across the organisation and to bring less experienced security engineers up with you as the function matures.

What You'll Be Doing

• Build and own a structured SecOps roadmap grounded in well-known frameworks such as MITRE ATT&CK, NIST, and CIS benchmarks.
• Lead security investigations and digital forensics, from suspicious traffic through to full incident response, and bring the findings back into how we detect and prevent.
• Design, tune, and scale our SIEM and logging pipeline through standardized log ingestion across services so signal isn't lost in the noise.
• Strengthen our perimeter and authentication posture, including WAF configuration, authorisation tuning, and monitoring for suspicious traffic.
• Protect sensitive data through DLP controls, and make sure the coverage matches where the data actually lives.
• Improve our on-call rotation for the team, defining the alerting, escalation paths, and response SLAs that make it work.
• Automate detection and response workflows, using code and AI to reduce manual toil and shorten time to resolution.
• Reduce SecOps-attributed risk identified through compliance gaps, and collect the evidence that demonstrates it.
• Build dashboards and reporting that give the team and leadership real visibility into response times, coverage, and risk reduction.
• Work cross-functionally with engineers who don't have a security background, translating threat models into changes they can actually ship.

What You Bring

• 10+ years of experience in security operations, incident response, or a closely related discipline, with a proven track record of materialised risk reduction through monetary impact, incidents contained, forensics that changed outcomes.
• A strong development and engineering background. You are comfortable writing the automation, not just specifying it.
• Hands‑on SOC and SIEM management experience, including detection engineering and log pipeline design.
• Experience in scale‑up environments, where you've built capability rather than inherited a mature one.
• A strong understanding of cloud architectures as we use AWS. With part of our estate on GCP and how infrastructure decisions shape detection and response.
• Demonstrated experience using AI and/or coding automation to get security controls built, implemented, and operating in practice.
• Fintech, payments, fraud, or trust & safety experience is a real advantage, as is exposure to highly regulated environments.
• Backgrounds that tend to do well here: incident response, IR management, SOC engineering, security engineering, DevSecOps, red or blue team.

Why is this role a good fit for you

• You want a large blast radius. We have high‑impact projects where the outcome shows up in real business metrics, at a pre‑IPO company.
• You're energised by building a function rather than maintaining one, and you'd rather set the roadmap than be handed it.
• You enjoy raising the bar around you, growing a team of specialists and lifting the people already here.
• You're equally at home in a threat model discussion and in an editor writing the automation that acts on it.

This role is not a good fit for you

• You need a well‑groomed backlog and assigned tasks in order to do your best work.
• You'd rather stay purely strategic than get hands‑on with the tooling.
• You're not up for participating in an on‑call rotation.

How You'll Develop In This Role

• Get deep into Pleo's security landscape and our detection coverage, our logging estate, our cloud footprint to form your own view of where the biggest risks sit.
• Publish a SecOps roadmap mapped to MITRE, NIST, and CIS, agree with Engineering, Risk & Compliance, and leadership, and start delivering against it.
• Stand up the on‑call rotation and the alert response SLAs that go with it.
• Ship your first wave of detection and automation improvements, and establish the KPIs that show what changed.

We're committed to helping you develop your career, whether that means taking on bigger projects, stepping into leadership, or acquiring new skills. There's genuine room here for the scope of this role to grow, including into people leadership.

The location

Please note: We can hire on a remote, hybrid or in‑person set‑up in any of the locations listed on the advert but you will need to be physically based in the country of your choice with a valid right to work. We are unable to offer visa sponsorship for this role in any of the listed locations.

Show me the benefits!

• Your own Pleo card (no more out‑of‑pocket spending!)
• Lunch is on us for your work days - enjoy catered meals or receive a lunch allowance based on your local office
• Comprehensive private healthcare - depending on your location, coverage options include Vitality, Alan or Médis
• We offer 25‑28 days of holiday (depending on your location) + public holidays
• For our Team, we offer both hybrid and fully remote working options
• Option to purchase 5 additional days of holiday through a salary sacrifice
• We use MyndUp to give our employees access to free mental health and well‑being support with great success so far
• Paid parental leave - we want to make sure that we're supportive of families and help you feel that you don't have to compromise your family due to work

The interview process

• Intro call: A 30‑minute chat with our Talent Partner to discuss the role and your background.
• Hiring Manager interview: a 60‑minute conversation covering your experience, how you approach security operations, and how you communicate.
• Technical deep dive: a 60‑minute session with two of our SecOps engineers, going deep on SIEM, detection engineering, your coding and automation experience.
• Cross‑functional interview: a 45‑minute conversation with DevSecOps and Engineering leadership on how you work across team boundaries with other senior engineers.

About Your Application

• English first. Since it's our company language, please submit your application in English. You’ll be using it a lot if you join us.
• A fair look for everyone. Our talent team reads every single application to ensure the process is fair. To keep things running smoothly, we only accept applications through our system—our support team can’t pass on calls or emails.
• Diversity drives us. We can only reach our goals if our team reflects the world around us. That starts with you hitting apply, even if you don't tick every single box. We encourage people from all backgrounds and experiences to join us.
• Interview at your best. We want you to feel comfortable throughout the process. If you have any accessibility requirements or need a specific format, email [e-mail]. We’ll design a process that works for you.
• Your data is safe. When you apply, we process your personal data as a data processor. For more information on how Pleo processes personal data, read our Privacy Policy here.
• Applying for multiple roles? Nothing is stopping you, and we assess every role independently. However, we do look for alignment, so make sure you can explain why your interest and experience are right for each specific role.
• Reapplying. If you’re applying for the same role again, please wait six months from your last decision before hitting submit.