What does a successful Sr. API Engineer/Architect do at Fiserv?
Join a fast-growing team that’s revolutionizing how businesses manage B2B payments. As part of the Carat B2B Enterprise Products team, you’ll help shape the future of SnapPay—our flagship product that streamlines payment processes by integrating directly with ERP and e-commerce systems. You’ll work alongside passionate, cross-functional teammates who thrive on innovation and are driving one of the most dynamic products in Global Business Services.
What you will do:
- Lead the charge on evolving and expanding our product use cases to deliver more value to clients and partners.
- Break down monolithic APIs into clean, scalable microservices that make our platform stronger and more flexible.
- Help us choose the right tools and technologies for data processing, while staying alert to security and compliance risks.
- Lead and support your team to deliver high-quality projects on time and on budget.
- Drive our multi-year product roadmap by building and launching new features across the full software development lifecycle.
- Work side-by-side with product, sales, and engineering teams to bring innovative capabilities to market.
- Design and build APIs with high availability and performance—think fast, reliable, and always-on.
- Create clear, detailed design documents that guide development and set us up for success.
What you will need to have:
- Bachelor's Degree (preferably Computer Science or Engineering) or equivalent combination of experience, education and military.
- Minimum 8 years of experience in API development and architecture using REST frameworks, C#, and .NET technologies.
- At least 2 years of hands-on experience with full API lifecycle management using Apigee, including design, development, security, deployment, publishing, monitoring, analytics, and monetization.
- Proven experience implementing and managing API gateways, specifically Apigee, with the ability to design and enforce throttling, quotas, and authentication policies.
- Demonstrated ability to split monolithic APIs into microservices, integrate microservices into ecosystems, and deploy them using Kubernetes, including containerization and security implementation.
- Strong proficiency with Azure services and infrastructure; experience monitoring API usage and predicting scaling needs for high-traffic APIs.
- Ability to analyze and optimize API performance through database partitioning, vertical and horizontal scaling strategies, and resolving architectural bottlenecks.
- Certifications in Azure, Apigee, or related technologies, with experience scaling large-scale web applications and managing both cloud and on-prem Apigee environments.
- Background in managing Azure Kubernetes Clusters.
What would be great to have:
- Master’s degree in Computer Science, Information Technology, or a related field
- Experience handling client PII securely in cloud platforms like Azure, AWS, Snowflake, or Google Cloud.
- Deep knowledge of API architecture and MicroServices best practices.
- Strong communication skills—you know how to make complex ideas sound simple.
Important info about this role:
- We’re better together. This role is fully on-site.
- In order to be considered, you must be legally authorized to work in the U.S. without need for sponsorship now or in the future.
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