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Lead Solution Architect

Today London, United Kingdom

Our Purpose

Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we're helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential.

Title and Summary

Lead Solution Architect

Overview

We are looking for a solution architect to join an award-winning team with a proven track record of combining data science techniques with an intimate knowledge of payments data to aid Financial Institutions in their fight against money laundering and fraud. Headquartered in The City of London, we craft bespoke services that help our clients gain an understanding of the underlying criminal behaviour that drives financial crime, empowering them to take action.

As part of the Architecture function, your role will focus on creating and maintaining architectural frameworks, understanding Product requirements and translating them in designs for the Engineering teams, presenting solution requirements to Platform Architecture. You will ensure the designs meet Mastercard technology and security standards, and will present them to Architecture & Technology design reviews. You will have an active role in assessing architectural changes and new technologies. Your role will be global, designing global products and how these will be deployed regionally.

Role

Draft architectures that follow design principles, and discuss them with other technical and non-technical stakeholders (Engineering, Platform, Product, Data Science, etc).

Ensure compliance of solution designs to Mastercard Technology and Security standards and policies.

Support closely the Engineering Team to progress software through review.

Collaborate with Engineering and Data Science teams to design and implement MLOps pipelines and feature derivation workflows that enable scalable, secure, and reliable deployment of machine learning models into production.

Work closely with platform architects to ensure appropriate infrastructure sizing, deployment strategies, and alignment with enterprise standards for performance, resilience, and cost-efficiency.

Define and maintain API specifications.

Assist with architectural design assessments for changes and evolution of FCS products.

Assist with technology assessments, software selections, and architectural evaluations to ensure alignment with business objectives and technical requirements.

Circulate your architectural designs across cross-functional team leads to support estimations and development processes.

Design to ensure resilience and reliability of services.

Take an active role to improve the customer experience of an entire set of services/applications sold as products or bundled services.

Drive the architectural design, including dependent services, service interactions, and policies.

Address emerging technical concerns, and recommend innovations to enhance the market-readiness of specific solutions.

Apply judgment and experience to balance trade-offs between competing interests.

Present solution designs in review architecture meetings and drive resolutions to enterprise-wide challenges and regulatory needs.

Develop understanding of end-to-end technical architecture and dependency systems.

Design to ensure optimal performance and resilience of products.

The role is hybrid, based in central London, and the expectation is that you attend the office according to Mastercard policy, including team days, which are currently on Monday and Thursday.

All About You

First and foremost, you enjoy designing products to solve real, pressing problems for your customers. You enjoy working in a team, and have an interest in data science and how advanced algorithms may be deployed as product offerings. You are curious and want to understand how new architectures and technologies can add value to FCS products.

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You are detail oriented, and enjoy drafting, discussing and evangelising architectural designs and documentation. You have a strong foundation as a senior engineer, having successfully delivered multiple enterprise-grade software projects.

You have experience building and maintaining distributed high-throughput, low-latency solutions, leveraging cloud-native technologies and container orchestration platforms such as Kubernetes.

You have experience architecting event-driven systems that support asynchronous workflows and scalable service interactions.

You understand database optimisation techniques to improve query performance, storage efficiency, and data access patterns.

You have experience or are keen to navigating the complexities of enterprise software delivery, including cross-functional collaboration, architectural governance, and regulatory compliance.

You have experience presenting solution designs in architecture review meetings.

Experience or are keen to engage with large volumes of data and high throughput, low latency solutions.

You understand and have implemented Application Programming Interface (API) standards and cataloguing to drive API/service adoption and commercialization. You are familiar with industry best practices for APIs and OpenAPI.

You are interested in, contemporary approaches to service design, including the use of containers and container orchestration technologies, streaming data platforms, and in-memory/NoSQL stores.

You have an understanding of DevOps best practices to guide developers and abstract application development from underlying hosting platforms and infrastructure

You are comfortable communicating with a range of stakeholders, technical and non-technical; including Product owners, platform architects, subject matter experts, data scientists, software engineers and enterprise devops and security professionals.

You have experience with productionising machine learning technologies, understanding the operational challenges and performance considerations involved.

You have experience or are keen to work in payments, fraud or money laundering, or equivalent in a field with similar application requirements.

You are well versed in delivery enterprise software and relish the challenge of solving delivery problems in large organisations.

You have experience in resolving different solutions and approaches to problems and can choose between pragmatic and rigorous solutions dependent on the situation.

You have taken an active role in technology decisions, e.g. architecture, databases, languages or streaming technologies.

You can understand architecture and cost analysis for internal, hybrid, and public cloud environments.

You can succinctly articulate architecture patterns of complex systems, with business and technical implications, to other Architecture & Technology teams.

You understand advanced chaos and other operational testing practices to test points of failures, monitors, and system behaviours under adverse conditions (e.g., resource spikes, network congestion, component or infrastructure failure).

You understand advanced test set ups in production environment (e.g., A/B testing, canary releases, blue-green deployment, feature flags).

You understand common regulatory needs and standards for data protection (e.g. PCI DSS, GDPR).

You have experience understanding, documenting and evangelising architectural principles and design patterns.

You have experience or are keen to understand data anonymisation and obfuscations solutions, including tokenisation.

Corporate Security Responsibility

All activities involving access to Mastercard assets, information, and networks comes with an inherent risk to the organization and, therefore, it is expected that every person working for, or on behalf of, Mastercard is responsible for information security and must:

  • Abide by Mastercard's security policies and practices;
  • Ensure the confidentiality and integrity of the information being accessed;
  • Report any suspected information security violation or breach, and
  • Complete all periodic mandatory security trainings in accordance with Mastercard's guidelines.

Client-provided location(s): London, United Kingdom
Job ID: Mastercard-22331_R-257461
Employment Type: OTHER
Posted: 2025-08-27T19:32:32

Perks and Benefits

  • Health and Wellness

    • Health Insurance
    • Dental Insurance
    • Vision Insurance
    • Life Insurance
    • Short-Term Disability
    • Long-Term Disability
    • FSA
    • FSA With Employer Contribution
    • HSA
    • HSA With Employer Contribution
    • Fitness Subsidies
    • On-Site Gym
    • Pet Insurance
    • Mental Health Benefits
    • Virtual Fitness Classes
    • Health Reimbursement Account
  • Parental Benefits

    • Birth Parent or Maternity Leave
    • Non-Birth Parent or Paternity Leave
    • Fertility Benefits
    • Adoption Assistance Program
    • Family Support Resources
    • On-site/Nearby Childcare
    • Adoption Leave
  • Work Flexibility

    • Flexible Work Hours
    • Remote Work Opportunities
    • Hybrid Work Opportunities
  • Office Life and Perks

    • Commuter Benefits Program
    • Casual Dress
    • Happy Hours
    • Snacks
    • Company Outings
    • On-Site Cafeteria
    • Holiday Events
    • Some Meals Provided
  • Vacation and Time Off

    • Paid Vacation
    • Paid Holidays
    • Personal/Sick Days
    • Leave of Absence
    • Volunteer Time Off
  • Financial and Retirement

    • 401(K) With Company Matching
    • Performance Bonus
    • Relocation Assistance
    • Financial Counseling
    • Stock Purchase Program
    • 401(K)
    • Company Equity
  • Professional Development

    • Tuition Reimbursement
    • Promote From Within
    • Mentor Program
    • Access to Online Courses
    • Lunch and Learns
    • Internship Program
    • Work Visa Sponsorship
    • Leadership Training Program
    • Associate or Rotational Training Program
    • Shadowing Opportunities
  • Diversity and Inclusion

    • Employee Resource Groups (ERG)