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About the Role

The Security Architecture team is seeking a mid-to-senior level Information Security Architect with a strategic focus on Cryptography & Post-Quantum Readiness. This role involves owning the strategic design of cryptography roadmaps, conducting assessments, driving crypto-agility, and defining technical strategies to ensure resilience against future threats.

Responsibilities

Architect end-to-end security solutions for cloud-native applications, microservices, and modern banking platforms.
Develop and lead our Post-Quantum Cryptography transition roadmap and crypto-inventory strategy.
Perform threat modeling and technical risk assessments on new and existing platform architectures.
Define, document, and promote enterprise cryptographic management standards (key lifecycle, hardware security, modern cipher suites).
Review architectural design documents, RFCs, and ADRs to ensure alignment with security guardrails and regulatory requirements.
Mentor engineering teams and provide guidance on cryptographic implementations, securely managing secrets, and data protection at rest/in transit.
Support the rest of the Security Architecture team with daily security architecture activities (e.g. adhoc security architecture advisory services).

Requirements

Security Architecture Experience: Proven track record in a Information Security Architect or Senior Security Engineering role designing secure, distributed systems within modern cloud environments (AWS/GCP).
Deep Cryptography Expertise: Comprehensive practical and theoretical knowledge of symmetric/asymmetric cryptography, PKI management, digital signatures, key management systems (KMS), and HSMs.
Post-Quantum Cryptography (PQC) Knowledge: Strong understanding of quantum computing threats to modern encryption, NIST PQC standards, hybrid key exchange, and strategies for achieving crypto-agility.
Threat Modeling & System Design: Demonstrated ability to perform threat modeling on complex cloud-native applications, APIs, and microservices architectures (e.g. Kubernetes, ECS).
Pragmatic Problem Solver: A firm believer that security should enable engineering speed, with the ability to design security controls that minimise developer friction.
Communication & Collaboration: Excellent written and verbal communication skills, with a track record of distilling complex technical/cryptographic risks into clear guidance for both technical teams and senior leadership.
Experience in Fintech, Banking, or highly regulated cloud environments (e.g. PCI-DSS, ISO 27001, NIST guidelines).
Demonstrated background in a highly technical role (e.g. Security Engineering, Infrastructure Engineering, Penetration Testing).
Experience in infrastructure, application, and AI security (e.g. container security, secure code reviews, secure integration of generative AI/ML).
Practical experience leveraging and applying the SABSA framework to design business-driven, risk-aligned enterprise security architectures.
Recognised industry security certifications (e.g. SABSA, CISSP, AWS Security Specialty, or specialised cryptography credentials).

Skills

Cryptography
Post-Quantum Cryptography (PQC)
Public Key Infrastructure (PKI)
Hardware Security Modules (HSMs)
Key Management
Service Mesh Security
Transport Layer Protocols
AWS
GCP
Threat Modeling
Secure Design Reviews
Proof of Concept Development
Collaboration
Communication
Fintech
Banking
PCI-DSS
ISO 27001
NIST guidelines
Security Engineering
Infrastructure Engineering
Penetration Testing
Container Security
Secure Code Reviews
Generative AI/ML Security
SABSA
CISSP
AWS Security Specialty

Location

London
Cardiff
Dublin
Southampton
Manchester

Work Type

Hybrid

Experience Level

Mid-to-senior level

Benefits

25 days holiday (plus public holiday allowance)
An extra day’s holiday for your birthday
Option to buy or sell up to five extra days off
16 hours paid volunteering time a year
Salary sacrifice pension scheme
Company enhanced pension scheme
Life insurance at 4x your salary
Group income protection
Private Medical Insurance with VitalityHealth (including mental health support and cancer care)
Partner benefits include discounts with Waitrose, Mr&Mrs Smith and Peloton
Generous family-friendly policies
Perkbox membership (retail discounts, wellness platform, weekly free and boosted perks)
Cycle to Work scheme
Salary Sacrificed Gym partnerships
Electric Vehicle (EV) leasing

About the Company

Starling is the UK's first and leading digital bank on a mission to fix banking with fast technology, fair service, and honest values.
We are a fully licensed UK bank, but at heart, we are a tech-first company, enabling our platform to deliver brilliant products.
Our technologists are at the very heart of Starling and enjoy working in a fast-paced environment that is all about building things, creating new stuff, and disruptive technology that keeps us on the cutting edge of fintech.
We operate a flat structure to empower you to make decisions regardless of what your primary responsibilities may be; innovation and collaboration will be at the core of everything you do.
We are on a mission to radically reshape banking – and that starts with our brilliant team.
Whatever came before, we’re proud to bring together people of all backgrounds and experiences who love working together to solve problems.

Equal Opportunity

Starling is an equal opportunity employer, and we’re proud of our ongoing efforts to foster diversity & inclusion in the workplace.
Individuals seeking employment at Starling Bank are considered without regard to race, religion, national origin, age, sex, gender, gender identity, gender expression, sexual orientation, marital status, medical condition, ancestry, physical or mental disability, military or veteran status, or any other characteristic protected by applicable law.