Software Development Engineering - Advisor II

Fiserv • Alpharetta, GA

3d • Onsite

About The Position

Fiserv is modernizing its SnapPay payment platforms to deliver modern, scalable, resilient, and secure digital payment experiences. The Software Development Engineering - Advisor II will play a key technical role by designing and delivering cloud-native services and APIs that support critical payment capabilities.

The role collaborates with product, architecture, engineering, QA, security, and infrastructure teams to turn business capabilities into defined specifications and production-ready solutions. It uses AI-assisted software development and specification-driven practices to accelerate delivery while maintaining architecture, security, testing, and engineering quality standards. The position is on-site Monday through Friday and is a full-time, direct-hire role. Candidates must already have valid, unrestricted U.S. work authorization; sponsorship is not available.

Requirements

• At least 6 years of professional software development experience, including designing and delivering enterprise-grade applications.
• At least 4 years of hands-on C#/.NET development experience, preferably building APIs, microservices, or distributed backend services.
• At least 3 years of experience with Microsoft Azure and cloud-native application development.
• Strong experience designing and developing RESTful APIs and microservice-based architectures.
• Strong experience with SQL and relational database design, transactional processing, query optimization, and data-access patterns.
• Experience with distributed application concepts such as idempotency, retries, resiliency, caching, asynchronous processing, and eventual consistency.
• Experience with messaging or event-driven architectures using Azure Service Bus, Event Hubs, Kafka, or equivalent.
• Experience with CI/CD, automated testing, source control, and modern DevOps practices.
• Hands-on experience using AI-assisted software engineering tools in day-to-day development, including code generation, refactoring, test generation, code analysis, documentation, and problem solving.
• Experience with specification-driven development, including translating requirements into structured specifications and using them to guide software design, implementation, and validation.
• Ability to critically review and validate AI-generated software rather than relying on generated output without appropriate engineering oversight.
• Experience implementing application security, authentication, and authorization in enterprise applications.
• Experience troubleshooting production applications using logs, metrics, distributed tracing, and observability tooling.
• Experience working in Agile engineering teams and collaborating across product, architecture, QA, security, and infrastructure functions.
• Bachelor's degree in Computer Science, Information Technology, Information Systems, or a related field (or foreign equivalent degree), or equivalent work experience.
• Must currently possess valid and unrestricted U.S. work authorization; candidates requiring sponsorship now or in the future will not be considered.
• Must be able to work on-site Monday through Friday.
• Employment is contingent on standard background checks; additional government-contract-related checks may apply if the position supports such a contract.

Nice To Haves

• Experience building or modernizing payment processing, financial services, fintech, or high-volume transactional platforms.
• Experience with OpenTelemetry, Dynatrace, or comparable observability platforms.
• Experience modernizing legacy payment applications into cloud-native architectures.

Responsibilities

• Lead the design and development of cloud-native services, APIs, and payment capabilities.
• Design and implement scalable, highly available, resilient, and secure microservices using C#/.NET and Microsoft Azure.
• Develop REST APIs and domain-aligned services using API design and Domain-Driven Design principles.
• Translate business requirements into structured functional and technical specifications that guide implementation and testing.
• Use AI-assisted engineering tools across the software development lifecycle for requirements analysis, design, code generation, refactoring, code review, test generation, documentation, and troubleshooting.
• Review, validate, and improve AI-generated code and technical artifacts to ensure they meet architecture, security, performance, maintainability, and engineering standards.
• Build payment solutions for transaction processing, idempotency, retries, error handling, asynchronous processing, and cross-domain event communication.
• Design and implement data-access patterns using technologies such as Azure SQL, Cosmos DB, and Redis.
• Develop event-driven integrations using technologies such as Azure Service Bus and Azure Event Hubs.
• Implement application security patterns, including token-based authentication, authorization, secure service-to-service communication, and secrets management.
• Develop automated unit, integration, API, and component tests, including appropriate use and validation of AI-assisted test generation.
• Collaborate with product, architecture, engineering, QA, security, and infrastructure teams.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level