Application Security Engineer

Legal Counsel - 12 month FTC at Rightmove Greenhouse; Greater London; Hybrid; GBP 80,000 - 110,000; Full time

Benefits offered by this job

Private Medical Insurance

Pension

Life Insurance

Hybrid working

Holiday allowance

Job summary

Rightmove is hiring an Application Security Engineer to join the growing AppSec function in London. You will own vulnerability management, security tooling, and threat modelling, working with engineering to secure design and CI/CD pipelines.

Requires hands-on security experience, Python scripting ability, and familiarity with SAST/DAST tools. Hybrid work model with two days in the office is provided, along with a comprehensive benefits package.

Qualifications

• Practical experience in application security, security engineering or a related hands-on security role.
• Able to assess security findings in context and make pragmatic recommendations.
• Python scripting ability to read, modify and write internal tooling.
• Experience with DAST/SAST/SCA/secrets scanning tools (Snyk, Semgrep, Checkmarx, etc.).
• Experience with Prisma Cloud or similar cloud-native security platform.
• Familiar with reading code and CI/CD pipelines (GitLab CI or equivalent).
• Experience running threat modelling exercises and coordinating with engineering teams.
• Strong written communication and the ability to triage high volume requests.

Responsibilities

• Vulnerability management and security tooling oversight across engineering repos.
• Triage and classify security findings; drive remediation of secrets backlog.
• Manage day-to-day vulnerability management, triage findings and engage engineers.
• Maintain engineer-facing guidance for resolving vulnerabilities and exceptions.
• Support cloud security posture management via Prisma Cloud and related teams.
• Run risk-tiered engagement cadence with engineering teams based on SLA.
• Conduct secure design and API security reviews for new services and RFCs.
• Triage security requests and respond to pen test and third-party reviews.
• Facilitate threat modelling sessions and improve practices across squads.
• Maintain runbooks and process documentation; support recurring reviews.

Skills

Python

Security tooling

Vulnerability management

Threat modelling

CI/CD pipelines

Security reviews

English communication

Tools

Snyk

Semgrep

Checkmarx

Aikido

Prisma Cloud

Job description

Our vision is to give everyone the belief they can make their move. We aim to make moving simpler,by giving everyone the best place to turn to and return to for access to the tools, expertise, trust, and belief to make it happen.

We’re home to the UK’s largest choice of properties and are the go-to destination for millionsof people planning their next move, reading the latest industry news, or just browsing what’s on the market.

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:

• Wecreatevalue…by delivering results and building trust with partners and consumers.
• Wethinkbigger…by acting with curiosity and setting bold aspirations.
• Wecaredeeply…by being real, having fun, and valuing diversity.
• Wemovetogether…by being one team - internally collaborative, externally competitive.
• Wemakea difference…by focusing on delivering measurable impact.

We believe in careers that open doors and help our team develop by providing an open and inclusive work environment, offering ongoing 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!

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 & 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.

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. 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.

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