Trainline

Security Engineer

• Define and own the product security roadmap, aligning priorities with business goals
• Influence engineering leadership to embed security into product design, development and deployment
• Establish and own the application security vulnerability management process
• Triage and prioritise vulnerabilities and track remediation
• Set and report metrics including MTTR by severity and security testing coverage
• Conduct threat modelling for web, mobile and API services
• Assess application and API security through code reviews, SAST and DAST
• Manage third-party penetration tests from scoping through remediation tracking
• Strengthen security for iOS and Android applications and their APIs
• Implement, maintain and automate vulnerability scanning and application security posture management tools
• Partner with engineering teams to remediate vulnerabilities and prevent recurrence
• Deliver secure coding and deployment training and mentoring
• Establish and grow a security champions programme
• Align product security practices with OWASP, NIST, ISO 27001, GDPR and PCI DSS
• Support compliance and audit efforts and monitor emerging threats

Senior Product Security Engineer

Sales

• Identify and engage potential clients and agencies to expand the advertising partner base
• Own and nurture a portfolio of media agencies and direct clients
• Act as a trusted advisor and ensure high levels of client satisfaction
• Understand client objectives and deliver data-driven, creative, and impactful advertising proposals across Trainline’s digital channels
• Collaborate with internal teams to plan, implement, and optimise advertising campaigns
• Ensure campaigns meet performance goals and timelines
• Meet or exceed individual and team sales targets through strategic pipeline management and persuasive negotiation
• Provide clear performance metrics and actionable insights demonstrating ROI
• Highlight areas for future client growth
• Monitor industry developments, emerging technologies, and competitor activity to inform strategy and identify opportunities

Senior Sales Manager

Product Manager

• Lead discovery, scoping, and delivery of new market launches
• Own product strategy from initial problem framing through customer-facing experience
• Develop understanding of carrier and market integrations and ensure complexity is invisible to customers
• Make investment decisions across the supply portfolio
• Balance deepening existing integrations, improving live functionality, and launching new markets or carriers
• Manage priorities across two squads while focusing deeply on highest-impact areas
• Define and track success metrics and use data to drive decisions
• Collaborate with Commercial colleagues on market economics, commission structures, and partner dynamics
• Partner with Engineering on technical constraints, opportunities, and API integrations
• Embed AI tools and approaches into working practices
• Partner with Legal, Finance, Go-to-Market, and Marketing teams on market launches

Senior Product Security Engineer

Senior Sales Manager

Senior Product Manager