Azure .NET Architect Digital Payments

Job Title: Azure .NET Architect Digital Payments
Location: Hybrid (Seattle, WA)
Duration: 6+ Months

Position Summary:

Costco is seeking an experienced Azure .NET Architect with deep expertise in digital payment systems to join our Digital Technology team. In this strategic, hands-on role, you will lead the design and development of scalable, secure, and high-performance enterprise services and microservices supporting our digital payments infrastructure. This includes payment gateways, token vaults, fraud management systems, and digital wallets. The ideal candidate will have extensive technical experience with Microsoft Azure, .NET technologies, and payment processing platforms.

Key Responsibilities:

• Architectural Leadership:
  Lead the design and development of enterprise-grade digital payment solutions using .NET and Azure, adhering to best-in-class architectural principles.
• Technical Mentorship:
  Guide and mentor a team of software engineers, fostering a culture of technical excellence, collaboration, and continuous learning.
• Digital Payment Systems:
  Develop and integrate systems such as payment gateways, token vaults, digital wallets, and fraud/risk management tools. Emphasis on experience with CyberSource and Fiserv uCom platforms.
• Modern Software Engineering Practices:
  Drive software quality through comprehensive code reviews, robust CI/CD pipelines, and a test-first development approach.
• Collaboration & Delivery:
  Partner closely with product managers, DevOps, architects, and other cross-functional teams to translate business requirements into scalable technical solutions.
• Performance & Monitoring:
  Design for reliability, observability, and diagnostics. Ensure systems are secure, performant, and highly available in a production environment.
• Cloud Infrastructure:
  Leverage Azure services, including serverless technologies, containers (Docker, Kubernetes), and infrastructure-as-code tools (e.g., Terraform).
• Innovation & Continuous Improvement:
  Stay informed of emerging trends in digital payments, cloud computing, and fraud detection. Apply new insights to continuously enhance Costco s digital payment capabilities.

Required Qualifications:

• 10+ years of software engineering experience, including 5+ years in a technical leadership or architecture role.
• Deep expertise in .NET technologies (C#) with strong proficiency in at least one other programming language (e.g., Python, Java, JavaScript).
• Proven experience designing and delivering microservices-based architectures at scale.
• Direct experience integrating with CyberSource, Fiserv uCom, and other payment processing systems.
• Solid understanding of payment industry protocols and standards (e.g., PCI-DSS, EMV, OAuth).
• Hands-on experience with Microsoft Azure and its services related to compute, networking, security, and storage.
• Experience with containerization, Kubernetes, and CI/CD tools (e.g., GitHub Actions, Azure DevOps).
• Strong analytical and troubleshooting skills.
• Excellent interpersonal and communication skills, with the ability to collaborate effectively across functions.

Preferred Qualifications:

• Bachelor s or Master s degree in Computer Science or a related technical field.
• Prior consulting or leadership experience in a large enterprise setting.
• Experience supporting both legacy and modern technology stacks.
• Familiarity with telemetry and observability tools (e.g., Azure Monitor, App Insights).

Work Environment:

• Hybrid role with regular attendance at Costco s Seattle-area office required.
• Occasional on-call responsibilities or off-hours support may be required based on deployment schedules or incident response needs.