Trainline

Android Engineer

• Design, build and improve high-quality Android features
• Work with cross-functional product team on technical decisions
• Identify and execute improvements for app performance and delivery speed
• Collaborate with Product, Backend, Web and iOS teams
• Use modern Android technologies and clean architecture principles
• Champion quality, maintainability, and technical design decisions
• Contribute to agile engineering culture
• Provide technical leadership within Android space
• Mentor and support other engineers

Senior Android Engineer

Frontend Engineer

• Deliver well-scoped web development tasks and tickets
• Write solid, testable code in JavaScript, HTML, CSS and React
• Contribute to a high-quality codebase by following team standards
• Build understanding of web technologies through hands-on delivery
• Support the full development lifecycle with guidance from senior engineers
• Help learn what works best for customers by contributing to experiments
• Read and update documentation for team clarity
• Engage in team ceremonies, retrospectives and discussions

Junior Web Engineer

Manager

• Own and evolve the UK Carrier Value agenda, developing a clear pipeline of initiatives that deliver measurable value for both Trainline and our rail industry partners.
• Identify and prioritise new commercial opportunities using industry trends, data, stakeholder insight and partner feedback, balancing proactive ideas with reactive opportunities and requests.
• Lead the end-to-end delivery of commercial initiatives, including marketing campaigns, partnerships, revenue-generating propositions, sponsored activity and commercial agreements.
• Work cross-functionally with Product, Commercial, Marketing, Data and Industry Relations teams to land initiatives successfully, remove blockers and keep delivery moving in a complex stakeholder environment.
• Use data and insight to shape propositions, track performance and demonstrate the impact of initiatives through clear, outcome-focused measurement.
• Build compelling narratives that communicate Trainline’s value to internal and external stakeholders, including senior audiences across the rail industry.
• Act as a connector across teams, ensuring Carrier Value initiatives are aligned with wider company priorities and support broader commercial, customer and partner outcomes.
• Contribute to wider team improvements, including ways of working, productivity and thoughtful adoption of AI and tooling where it can improve impact and efficiency.

Senior Carrier Value Manager

Strategy

• Lead Trainline’s annual strategy cycle from start to finish, shaping the approach, timeline and final output for leadership and Board
• Design and run strategy workshops with senior leaders, bringing together perspectives into a clear multi year plan
• Partner with Finance, Product, Commercial and Operations to ensure priorities are clearly defined and owned
• Establish a clear rhythm to track progress against strategic priorities and long term ambitions
• Identify and evaluate key opportunities such as new markets, products or partnerships, answering “should we do this” with clear, data driven recommendations
• Lead strategic projects from hypothesis through to Board level output
• Build robust financial models and scenario analysis to support decision making
• Translate complex analysis into clear, impactful materials for senior stakeholders
• Support M&A and corporate development activity as needed
• Act as a trusted strategic partner to Product, Marketing, Commercial and Tech teams
• Create clear and compelling materials for the C suite and Board
• Support the Board strategy process, including timelines and content development
• Own key business rhythms such as MBRs and QBRs, ensuring they drive accountability and progress

Head of Strategy

Security Engineer

• Define and execute the Security Engineering & Operations strategy, aligning with business and technology goals while fostering a culture of accountability, pragmatism, and continuous improvement.
• Build, lead, and develop a high-performing, multidisciplinary team across Security Operations, Product Security, Cloud Security, and Identity & Access Management.
• Oversee and mature security capabilities including detection and response, secure software development, cloud and infrastructure security, and identity lifecycle management, ensuring controls are scalable, automated, and developer-friendly.
• Embed secure-by-design principles into product and platform development, partnering closely with engineering and product teams to balance risk with delivery speed.
• Drive risk-based prioritisation in a fast-moving commercial environment, enabling teams to make informed trade-offs and deliver securely at pace.
• Collaborate cross-functionally with Product, Engineering, Platform, Legal, and Compliance teams to meet regulatory, privacy, and security requirements.
• Champion the secure adoption of AI technologies and leverage AI to enhance detection, response, and operational efficiency, ensuring appropriate governance and controls.
• Own security incident response and resilience, including detection, response, recovery, and post-incident review processes.
• Communicate clearly with senior leadership and stakeholders, translating complex security topics into actionable business insights and building strong organisational alignment.

Head of Security Engineering – Operations

Accounts Payable

• Processing supplier invoices accurately and efficiently, ensuring correct matching to purchase orders and receipts
• Managing supplier setups and maintaining accurate supplier data
• Processing employee expense claims in line with our Travel & Expenses policy
• Administering company credit card expenditure
• Running weekly multi-currency payment runs for suppliers and employees
• Managing queries via the Accounts Payable inbox, working closely with internal teams and external suppliers
• Performing supplier statement reconciliations
• Investigating and resolving aged creditor balances
• Supporting the Treasury team with payment-related queries and maintaining the AP cashbook
• Assisting with month-end close activities
• Supporting non-finance colleagues with purchasing processes and purchase orders
• Maintaining the purchase ledger to a high standard
• Identifying and contributing to process improvements within the team
• Supporting with ad hoc finance tasks as needed

Accounts Payable Clerk

• Act as the primary technical point of contact for Spanish rail partners
• Lead technical discussions with external partners
• Define and drive product and engineering priorities
• Negotiate enhancements to partner capabilities
• Use data and insight to inform prioritisation and decision-making
• Analyse requirements and ensure dependencies are clearly identified
• Collaborate with Product, Engineering, and Platform teams
• Own and maintain clear documentation of technical requirements
• Navigate and influence a complex stakeholder landscape

Partner Integration Manager – Spanish Markets

• Support the integration of security practices across the product development lifecycle
• Work with teams to promote secure-by-default and a shift-left approach to security
• Help integrate security checks into CI/CD workflows
• Assist in triaging and analysing findings from automated tooling
• Review and triage incoming security issues from scans and bug reports
• Record, prioritise and help track remediation with developers and platform teams
• Participate in threat modelling sessions and documentation efforts
• Help promote secure coding principles across teams
• Assist with aligning product security practices with relevant security frameworks and standards

Junior Product Security Engineer

Risk

• Lead the identification, documentation, and tracking of security and cyber risks across all functions and departments.
• Maintain the Information Security Risk Framework and Register in line with enterprise risk methodology, supporting the delivery of centralised risk reporting via the CISO/GRC Dashboard.
• Facilitate risk workshops, control self-assessments (CSAs), and policy reviews with business units.
• Track risk remediation efforts and escalate critical project, operational and supplier risks to appropriate forums.
• Collaborate with engineering, legal, privacy and product teams to assess and document risk impacts.
• Support the development and implementation of the AI Readiness and Governance framework, including conducting AI risk assessments for new and existing AI use cases, applying the risk classification model, and maintaining the AI use case register. This includes evaluating risks around data quality, model bias, transparency, third-party AI dependencies, and regulatory compliance.
• Conduct structured AI risk assessments across the business, working with product, data science, and engineering teams to evaluate AI use cases against the risk classification model, assess control adequacy, and ensure high-risk use cases have approved controls before production release.
• Support the implementation and ongoing maintenance of the unified internal control framework, mapping controls across ISO 27001, ISO 22301, Cyber Essentials, and PCI DSS.
• Leverage AI tools and techniques to streamline repetitive GRC tasks such as policy gap analysis, control mapping, vendor questionnaire processing, and risk reporting.
• Provide risk advisory for new product launches, technology and AI adoptions, and vendor integrations ensuring Security by Design and informed risk decision making.
• Support internal education and awareness around security risk and governance.