Application Security Engineer

Application Security Engineer

Purpose This is the first engineering hire into Rightmove's growing Application Security function,reporting to the Lead Application Security Engineer. You'll work closely with engineering teamsto deliver day-to-day AppSec capabilities across security tooling, vulnerability management,secure design and threat modelling, while helping shape how Application Security operates asthe function matures.

Key Responsibilities

Vulnerability Management & Security Tooling

Support the rollout and operation of application security tooling across engineeringrepositories, including SAST, SCA and secrets detection.

Triage and classify security findings across repos, driving remediation of the secrets backlog

Manage the day-to-day operation of vulnerability management, including findings triage,monitoring and engineering engagement.

Maintain engineer-facing guidance for resolving vulnerabilities and requesting exceptions

Cloud Security

Support cloud security posture management through Prisma Cloud, including findings triage,monitoring and engagement with relevant engineering/platform teams.

Engineering Team Engagement

Run a risk-tiered engagement cadence with engineering teams based on SLA compliance

Security Reviews & Triage

Triage inbound security requests per the AppSec triage SLA

Conduct secure design and API security reviews for new services, integrations, and RFCs

Review and respond to penetration test requests and third-party integration reviews

Threat Modelling

Facilitate threat modelling sessions using the team's runbook/guide

Work with engineering teams to establish and improve threat modelling practices acrosssquads

Process & Documentation

Maintain runbooks and process documentation as the function matures

Support recurring review cadences (e.g. access reviews, vulnerability audits)

Requirements Must have:

Practical experience in application security, security engineering or a related hands-onsecurity role

Able to assess security findings in context, distinguish meaningful risk from tooling noise, andmake pragmatic recommendations to engineering teams.

Working proficiency in Python (able to read, modify, and write scripts used for internal tooling)

Practical experience with DAST/SAST/SCA/secrets scanning tools (Aikido, Snyk, Semgrep,Checkmarx, or similar)

Experience with Prisma Cloud or a comparable cloud-native security platform

Comfortable reading code and understanding CI/CD pipelines (GitLab CI or equivalent)

Experience running or contributing to threat modelling exercises

Comfortable running recurring stakeholder syncs with engineering teams

Strong written communication

Able to triage and prioritise a high volume of inbound requests independently

Nice to have:

Exposure to GCP security controls

Familiarity with supply-chain security (npm/PyPI dependency risks)

Prior experience in a scaling/greenfield security function

Success in first 6 months

Fully ramped on Aikido, independently supporting rollout, triage and day-to-day operations

Cloud Security handover complete: backlog triaged, monitoring cadence running

Risk-tiered engagement cadence live and running its first full cycle

Independently triaging and closing security review requests within SLA

Independently facilitating threat modelling sessions with engineering teams

Identified and delivered improvements to at least one AppSec process or workflow

Life at Rightmove

Despite our growth, we’ve remained a friendly, supportive place to work, with employee #1 still working here!  We’ve done this by placing the Rightmove Hows at the heart of everything we do. These are the essential values that reflect our culture, and include:

We create value… by delivering results and building trust with partners and consumers.

We think bigger… by acting with curiosity and setting bold aspirations.

We care deeply… by being real, having fun, and valuing diversity.

We move together… by being one team - internally collaborative, externally competitive.

We make a difference… by focusing on delivering measurable impact.

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We believe in careers that open doors and help our team develop by providing an open and inclusive work environment, offering ongoing&nbsp; &nbsp;training opportunities, and supporting charity fundraising events. And with 89% of Rightmovers saying we’re a great place to work , we’re clearly doing something right! &nbsp; <img src="https://www.rightmove.co.uk/careers/content/uploads/2026/07/Untitled-30-July-2026-at-10.03.05-1-2.png" alt="" width="1000" style="max-width: 100%;">

<img style="max-width: 100%;">What we offer

Cash plan for dental, optical and physio treatments.

Private Medical Insurance, Pension and Life Insurance, Employee Assistance Plan.

27 days holiday plus two (paid) volunteering days a year to give back, and holiday buy schemes.

Contributory stakeholder pension.

Life assurance at 4x your basic salary to a spouse, family member or other nominated person in your life.

Competitive compensation package.

Paid leave for maternity, paternity, adoption &amp; fertility.

Travel Loans, Bike to Work scheme, Rental Deposit Loan.

Charitable contributions through Payroll Giving and donation matching.

Access deals and discounts on things like travel, electronics, fashion, gym memberships, cinema discounts and more.

We offer hybrid working with a minimum of 2 days in the office. For our roles, such as Field or Home-based positions, different working arrangements apply - full details will be shared during the recruitment process.

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As an Equal Opportunity Employer, Rightmove will never discriminate based on age, disability, sex, race, religion or belief, gender reassignment, marriage / civil partnership, pregnancy/maternity or sexual orientation.&nbsp; At Rightmove, we believe that a diverse and inclusive workforce leads to better innovation, productivity, and overall success. We are committed to creating a welcoming and inclusive environment for all employees, regardless of their background or identity, to develop and promote a diverse culture that reflects the communities we serve.

By applying, you confirm that you are aged at least 18 or over and&nbsp;that you’ve read and understood our Privacy Policy , which explains how we handle and protect your personal information during the recruitment process.

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