Full-Time

Product Security Architecture

Cybersecurity

Posted on 10/5/2025

Visa

Visa

10,001+ employees

Global digital payments network processing transactions

No salary listed

London, UK

Hybrid

Expectation of days in office will be confirmed by your Hiring Manager.

Category
IT & Security (1)
Required Skills
Microsoft Azure
Python
Machine Learning
Java
AWS
Go
Terraform
Ansible
Google Cloud Platform
Requirements
  • Demonstrable coding skills in at least one modern language (Python, Java, Go, or similar)
  • Practical experience working with Generative AI (GenAI) technologies or AI/ML systems, with the ability to explain key security considerations, risks, and basic control approaches for AI-driven systems
  • Working knowledge of cloud platforms (AWS, Azure, GCP) and common security patterns for cloud-native applications
  • Familiarity with security principles for on-premise network, application security and cloud environments
  • Understanding of threat modelling and vulnerability assessment processes
  • Awareness of common security standards and frameworks (PCI-DSS, NIST, ISO 27001)
Responsibilities
  • Support security architecture reviews for web, API, and backend applications, working alongside senior security staff
  • Assist in security assessments during the development lifecycle, including contributing to scoping discussions, performing threat modelling, and participating in peer reviews
  • Help implement security controls within application frameworks, ensuring alignment with Visa’s security standards
  • Contribute to the identification and analysis of application on prem and cloud security vulnerabilities, recommending appropriate mitigations
  • Apply coding skills to review source code where applicable, develop proof-of-concept security tools or scripts, and automate security checks
  • Support security evaluations and help monitor ongoing security advisories
  • Gain experience in the security implications of infrastructure as code (IaC) technologies (Terraform, Ansible, AWS CloudFormation) and CI/CD pipelines
  • Assist in the security review of AI/ML and GenAI-related services, including prompt injection risks, data privacy, and model security controls
  • Stay informed about current and emerging cybersecurity threats, security testing tools, and AI-driven security solutions
  • Collaborate with cross-functional and geographically distributed teams to ensure security requirements are understood and implemented
  • Help maintain and update security documentation, technical guidelines, and reference architectures
Desired Qualifications
  • Exposure to security controls in GenAI platforms (e.g., LLMs, AI/ML pipelines)
  • Exposure to container technologies (Docker, Kubernetes) and associated security tools
  • Familiarity with DevOps practices and security automation
  • Experience with vulnerability management solutions
  • Awareness of regulatory and compliance requirements relevant to the payments industry (e.g., PCI, GDPR)

Visa operates a global digital payments network that connects consumers, businesses, banks, and governments to enable electronic card payments. Its system moves money through a card-based flow: a merchant request, card authorization via Visa, funds settlement between banks, and data processing, with fees earned on transactions and services. The company differentiates itself with its worldwide network, large client base, and partnerships that expand access to digital payments while supporting sustainable commerce. Its goal is to widen financial inclusion and provide convenient, secure electronic payments for a growing share of global commerce.

Company Size

10,001+

Company Stage

N/A

Total Funding

$9.6M

Headquarters

San Francisco, California

Founded

1958

Simplify Jobs

Simplify's Take

What believers are saying

  • Visa Ventures invested in Nekuda's $5M round for agentic payments.
  • Visa Ventures led BVNK's $50M Series B for stablecoin payments.
  • VisaNet handled 164.7 billion transactions annually in 2021.

What critics are saying

  • FedNow bypasses Visa, cutting transaction volume in 12-24 months.
  • PSD2 enables direct payments, causing 70-85% volume loss in 18-36 months.
  • CBDCs in 130+ countries reduce Visa's market by 15-25% in 36-60 months.

What makes Visa unique

  • VisaNet processes 76,000 transactions per second with 99.9999% availability.
  • VisaNet connects 3.6 billion accounts across 200+ countries.
  • VisaNet uses AI for smarter authorization and fraud prevention.

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Benefits

Health Insurance.

Life Insurance.

Dental Insurance.

Disability Insurance.

Accidental Death & Dismemberment Insurance.

Company News

TechCabal
Aug 12th, 2025
HoneyCoin raises $4.9M for expansion

Kenyan fintech HoneyCoin raised $4.9 million in seed funding to expand its stablecoin cross-border payment services into Africa, Latin America, and Asia. Led by Flourish Ventures, the round included TLcom Capital, Stellar Development Foundation, and Visa Ventures. HoneyCoin processes $150 million monthly, serving 350 enterprise clients. The funds will be used to hire executives, secure licenses, and expand into new markets, with plans for new products by Q3 2025.

Business Wire
May 15th, 2025
Nekuda Raises $5M Led by Madrona, Together with Amex Ventures and Visa Ventures, to Power Agentic Payments

Nekuda raises $5M led by Madrona, Amex Ventures & Visa Ventures to power agentic aayments. For the infrastructure of the future of online commerce.

Forbes
May 6th, 2025
Visa Invests in BVNK, $50M Funding

Visa Ventures has invested in stablecoin infrastructure platform BVNK, marking Visa's first direct investment in a stablecoin payments player. This move supports the future of stablecoins in payments, enhancing BVNK's credibility and penetration with Visa's partners. BVNK, which raised $50 million in a Series B round in December 2024, processes $12 billion in annualized volume and offers solutions for B2B and B2C payments using stablecoins.

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