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Enterprise Security Architect

Reporting to the Head of Security Change and Assurance and working closely with the wider Ledger Architecture team, Infrastructure Function and platform team(s)…...

Founded in 2014, Ledger is a leader in security and infrastructure solutions for cryptocurrencies and blockchain applications. Headquartered in Paris, London, Singapore Vierzon and New York, Ledger has a team of 300+ professionals developing a variety of products and services to safeguard cryptocurrency assets for individuals and companies – including the Ledger hardware wallets line already sold in 165 countries.
The Enterprise Security Architect will be responsible for ensuring the security agenda is promoted and embedded into the wider Ledger Architecture team, act as a Security champion ensuring reusable artefacts are developed, providing security advice to the team, providing input to the security strategy and technology roadmaps and ensuring that Ledger is positioned to make appropriate use of new and emergent technologies in a secure fashion.
Reporting to the Head of Security Change and Assurance and working closely with the wider Ledger Architecture team, Infrastructure Function and platform team(s) you will play a key role in driving the security posture and continued evolution of Ledgers position within the market.

Key Accountabilities

    • Strategic Security Requirements Management. Elicitation, documentation and verification of strategic requirements for the use of IT
    • Development of an IT Security Architecture Strategy in response to requirements
    • Secure Architecture Development Standardisation. Promoting and supporting the establishment and embedding of security best practices in architecture development processes
    • Enterprise Architecture Development. Development and input into significant aspects of Ledger Enterprise Architecture

Key Activities

    • Develops enterprise-wide information security technology architecture and processes which ensure that Security is embedded in the management of the organisation
    • Taking account of the business objectives and culture evaluates major options for providing IT Security services effectively and efficiently and recommends solutions
    • Draws up plans for the implementation of new applications and infrastructure support, identifying budgetary, technical and staffing constraints, and clearly showing costs and expected benefits.

Key Interfaces

    • Head of Security Change and Assurance
    • Head of Enterprise Architecture
    • Solution Architect(s)
    • Strategy and Planning
    • Line of Business (e.g. B2B & B2C) & Project Sponsors
    • Portfolio Management
    • Risk Department
    • Product Owners

Expected Experience

    • Previous experience of working in a highly available, performance critical technology environment
    • Ideally, financial services experience (particularly in payments)
    • Extensive IT Security experience including strategic disciplines
    • Familiar with industry standard methods, tools and processes to support an Enterprise Security Architecture function, such as SABSA, TOGAF etc. and the embedding of security principles within this in agile development environments
    • Experience across several architecture disciplines, such as Business, Application, Infrastructure, Data & Security
    • Worked with industry standard processes relating to change management and governance, such as Prince, COBIT, ITIL
    • Broad and demonstrable experience of working with a diverse set of stakeholders, applying Security capability for business benefit

Required Core skills

    • Architecture Development
      : Proven experience in creating cohesive Enterprise Security architecture for business, applications, information and infrastructure; overseen the integration and migration to a target model;, developed security architecture artefacts; identification and consultation regarding planning, migration and implementation issues. Has defined Security architectural principles and framework for an organisation. Has proven experience with service-oriented analysis, definition, and design.

    • Effective Communications
      : Communicates well downward, upward, and outward, employing appropriate methods of persuasion when soliciting agreement and demonstrating both empathy and assertiveness when communicating a need or defending a position.

    • Problem Solving
      : Uses varying problem-solving approaches and techniques as appropriate, developing successful resolutions to critical or wide-impact problems. Has the ability to organise potential problem solvers and lead problem resolution efforts, ensuring lessons learnt are captured.

    • Simplifying Complex Concepts:
      Introduces technical terminology to listeners in the context of the product or service and explains important details as they relate to the basic value of the product or service. Approaches communication challenges from various angles to find the one that works.

    • Team Work:
      Works with a wide range of teams across various issues, locations, and time zones. Develops an effective working relationship with each team member identifying and addresses potential problems or issues within the team. Earns trust, respect and loyalty, coordinating roles, responsibilities and interdependencies of all team members.

    • Written Communications:
      Produces excellent written materials in business and industry specific technical language seeking to ensure that the key messages are understood as intended.

    • Analytical Thinking:
      Is able to choose among a diverse set of analytical tools according to the nature of the situation, identifying many possible causes for a problem based on prior experience and current research. Weighs the costs, benefits, risks, and chances for success before recommending a course of action.

    • Facilitation:
      Plans, coordinates and facilitates group sessions, participating in the identification and selection of the most qualified candidates for the group, achieving group agreement on the purpose and goals of the session; experience of employing formal facilitation methods and techniques.

    • Influencing:
      Persuasively presents suggestions or ideas to business managers, internal or external, utilising specific techniques for establishing rapport and gaining commitment; delivers well-received presentations of cost, benefits, risks, and other considerations; achieves influencing impact even when holding a position contrary to the majority; discards examples of persuasive arguments lacking substance or impact.

    • Planning, Tactical and Strategic:
      Develops, refines, and communicates tactical plans for own responsibilities, providing the right level of detail as input for strategic plan development and demonstrating the value and necessity of linking tactical plans to the overall strategic plan.

Personal Attributes

    • Energetic
    • Dynamic
    • Consultative
    • Professional
    • Analytical Problem Solver
    • Reliable
    • Measured
    • Trustworthy
    • Leadership
    • Meeting deadlines
    • Aware of the big picture
    • Excellent communication skills


    • Competitive compensation package and ESOP according to the Company policy
    • Flexible working hours, remote-friendly environment
    • Strong focus on personal development including internal/external trainings and attendance to conferences
    • Internal talks, technical meetups and hackathons
    • High performance office equipment
    • Comprehensive health insurance policy offering extensive medical, dental and vision care coverage
    • Meal Vouchers with Swile (ex Lunchr)
    • Annual company outing for Ledgerdary Days plus infrequent parties, snacks and drinks
    • Employee discount on Ledger products
Ledger guarantees equity for all during the recruitment process, without any distinction of gender, ethnicity, religion, sexual orientation, social status, disability or age