AI - Software Engineering-Sr Professional I

Calling all innovators – find your future at Fiserv.

We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day – quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we’re involved. If you want to make an impact on a global scale, come make a difference at Fiserv.

Job Title

AI - Software Engineering-Sr Professional I

About your role:

You will build the APIs, services, and cloud-integrated applications that power Fiserv's contact center and AI platform. You will bring deep expertise in .NET Core and Azure, a strong engineering discipline, and the ability to design, implement, and own production-grade systems from requirements to deployment. You integrate AI agentic capabilities as a natural part of your workflow, leverage tools like Microsoft Copilot to accelerate delivery, and consistently raise the engineering bar through code reviews and cross-team collaboration. 

What you’ll do:

• Design, build, and maintain RESTful APIs and backend services using .NET Core (C#). 

• Develop scalable, secure, and high-performance microservices and cloud-native applications on Azure. 

• Integrate Azure services: App Configuration, Key Vault, Redis Cache, Service Bus, Event Grid, Blob Storage, and Azure SQL. 

• Build and manage containerized applications using Azure Kubernetes Service (AKS). 

• Integrate AI agentic models, Azure OpenAI, and third-party AI services into application workflows. 

• Integrate messaging systems (Azure Service Bus, Kafka) and API management tooling (APIGEE). 

• Implement CI/CD pipelines using GitLab and Harness; support environment-based deployment strategies. 

• Design and optimize SQL Server / Azure SQL schemas, stored procedures, indexing, and query performance. 

• Conduct code reviews and enforce engineering best practices — secure coding, observability, scalability. 

• Collaborate with DevOps, QA, architects, and product teams in Agile sprint delivery. 

• Track and document work using JIRA and Confluence; leverage AI/Copilot tools to accelerate development. 

• Support production systems, troubleshoot incidents, and drive reliability improvements. 

What you will need to have: 

• 5+ years of professional backend or full-stack .NET development. 

• .NET Core / C# — RESTful API design, middleware, filters, exception handling, logging. 

• Authentication and authorization: JWT, OAuth concepts. 

• Performance optimization and secure coding practices. 

• App Configuration / App Settings. 

• Azure Key Vault — secrets and certificate management. 

• Azure Redis Cache — caching and session management. 

• Azure Service Bus — queues and topics (messaging). 

• Azure Event Grid — event-driven architecture. 

• Azure Blob Storage. 

• Azure SQL / SQL Server — schema design, stored procedures, performance tuning. 

• Azure Kubernetes Service (AKS) containerized application deployment. 

• GitLab — source control, branching strategies, merge requests. 

• Harness — CI/CD pipeline configuration, automated deployments, rollback strategies. 

• Microservices, CQRS / DDD, event-driven architecture. 

• API design best practices and API gateway concepts. 

• Transaction management and data consistency patterns. 

• JIRA — sprint planning, work item tracking, and agile delivery. 

• Confluence — technical documentation and knowledge sharing. 

• SoapUI / Postman — API testing and validation. 
• Bachelor's degree or equivalent in Computer Science, Software Engineering, or a related field.
• Fiserv products experience.

What would be great to have: 

• ReactJS / TypeScript — for full-stack UI integration capability. 

• Snowflake data platform integration. 

• Kafka — streaming and advanced messaging patterns. 

• APIGEE — API management and gateway tooling. 

• Splunk — logging, monitoring, and operational intelligence. 

• Kendo UI or similar enterprise component library. 

• Azure certifications: AZ-204 (Developer Associate) or AZ-900. 

• AI/ML tools or Microsoft Copilot integration experience. 

• SSIS / data integration pipeline awareness. 

This role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Illinois, Massachusetts, Maryland, Minnesota, New Jersey, New York, Nevada, Rhode Island, Vermont, Virginia, Maine or Washington.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

Please note that salary ranges provided for this role on external job boards are salary estimates made by outside parties and may not be accurate.

Thank you for considering employment with Fiserv.  Please:

• Apply using your legal name
• Complete the step-by-step profile and attach your resume (either is acceptable, both are preferable).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, gender, gender identity, sexual orientation, age, disability, protected veteran status, or any other category protected by law. 

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process, please contact AskHR.US@fiserv.com. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing agreements. Please do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

Warning about fake job posts:

Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.