Security GRC Associate — ISO & Third-Party Risk (Hybrid)

Trainline; Greater London; Hybrid; GBP 55,000 - 75,000; Full time

Benefits offered by this job

Private healthcare

Dental insurance

Work from abroad policy

Share purchase plan

EV scheme

Extra festive time off

Family-friendly benefits

Job summary

Trainline is seeking a Security GRC Associate to strengthen how we manage supplier risk and assurance. You will join the Information Security team, collaborate with Procurement, Legal, Privacy and Engineering, and support ISO 27001 assurance and the unified control framework.

You will drive third‑party risk assessments, review evidence, and help shape an intelligence‑led, risk‑based approach across our hybrid environment.

Qualifications

• Experience in information security, GRC, third‑party risk management or a related cyber security discipline.
• Hands‑on experience running third‑party security assessments, reviewing supplier assurance documentation or supporting vendor risk processes.
• Working knowledge of security standards and frameworks, ISO 27001, ISO 27002 and NIST CSF.
• Experience working with stakeholders across functions, such as Procurement, Legal, Technology and business teams.
• Strong analytical and problem‑solving skills, a sharp eye for detail, and the ability to manage several assessments and competing priorities at once.
• Clear written and verbal communication, with the confidence to explain security requirements to technical and non‑technical audiences.
• A proactive, curious mindset and a real interest in improving how security governance and risk management are delivered.

Responsibilities

• Run third‑party security risk assessments for new and existing suppliers, including SaaS and cloud providers, technology partners and business‑critical vendors.
• Review supplier assurance evidence, such as ISO 27001 certificates, SOC 2 reports, security questionnaires and penetration test summaries, and judge whether the controls in place are adequate.
• Identify and document third‑party security risks and recommend proportionate ways to reduce them.
• Help assess the security risks of AI tools, applications and third‑party AI integrations, working with the wider GRC and InfoSec teams to review controls and track remediation.
• Partner with Procurement, Legal, Privacy and Engineering to build security requirements into supplier onboarding, procurement and contract renewals.
• Keep third‑party risk records up to date, track remediation actions, and escape material risks to the right stakeholders and governance forums.
• Help shape a risk‑based approach to ongoing supplier assurance, including periodic reassessments and monitoring of critical suppliers.
• Help improve our Third‑Party Risk Management framework, including supplier risk classification, assessment methods, questionnaires and reporting.
• Support ISO 27001 assurance work, such as control assessments, evidence gathering, audit preparation and remediation tracking, and help maintain our unified internal control framework.
• Help build and improve our GRC tooling, using automation and AI to speed up questionnaire reviews, evidence analysis, control mapping and risk reporting

Skills

InfoSec

GRC

Vendor risk

Stakeholder engagement

Analytical thinking

Clear communication

Curiosity

Tools

ServiceNow GRC

Archer

LogicGate

Vanta

Compyl

Job description

Trainline is seeking a Security GRC Associate to strengthen how we manage supplier risk and assurance. You will join the Information Security team, collaborate with Procurement, Legal, Privacy and Engineering, and support ISO 27001 assurance and the unified control framework.

You will drive third‑party risk assessments, review evidence, and help shape an intelligence‑led, risk‑based approach across our hybrid environment.