Sr Java Software Engineer

Fiserv•King of Prussia, PA

22h•Onsite

About The Position

Fiserv is seeking a Senior Java Software Developer who is passionate about working as a member of a software product development team to deliver modern, complex web applications. This role involves designing, building, monitoring, and maintaining backend services that power a complex, distributed, web-based software product. As a Senior Software Developer, you will provide technical direction and work with the team to iteratively deliver production-grade microservices. You will also help shape the technical direction and collaborate with team members to evolve the microservice architecture in a scalable Docker/Kubernetes environment, maintaining a strong focus on reliability, security, and performance.

Requirements

Bachelor’s degree in computer science, engineering or related field.
7+ years of professional experience developing software and delivering production systems with a member of a product development team.
Proficient in building Java (Spring Boot) RESTful APIs and/or gRPC services.
Working knowledge with software design patterns and architectural principals, including application scaling, distributed data systems and asynchronous communications.
Experience designing and developing microservices, including service decomposition, API design, and backwards-compatible change management.
Experience with containerization and orchestration (Docker and Kubernetes).
Experience with secure coding practices and secrets management.
Experience with Agile, CI/CD systems and modern SDLC practices (code reviews, automated testing, and incremental delivery).
Strong troubleshooting and root-cause analysis skills across distributed systems, networking, and Linux-based environments.
Strong communication skills, including writing technical documentation, participating in Agile events, and collaborating effectively with team members.

Nice To Haves

Experience with distributed systems, microservices architectures (Docker/Kubernetes), and working in a Linux-based environment.
Experience with data stores commonly used in distributed systems (e.g., PostgreSQL/MySQL, Redis, Kafka) and associated consistency and scaling trade-offs.
Experience with observability stacks (e.g., OpenTelemetry, Prometheus/Grafana, ELK/EFK) and building actionable operational dashboards.
Experience with Kubernetes ecosystems and tools (e.g., Helm, ArgoCD, Kustomize) and automated CI/CD build pipelines (GitLab).
Experience hardening systems for security and compliance (threat modeling, secrets management, secure coding practices).
Experience improving performance and reliability through load testing, capacity planning, and resiliency patterns (timeouts, retries, circuit breakers).

Responsibilities

Design, develop, test, deploy, and maintain backend services and APIs for a microservice architecture.
Demonstrate the ability to implement modern architectural designs in software development.
Mentor the team in building resilient, observable, and secure services (e.g., health checks, structured logging, metrics, tracing, and alerting).
Implement data and integration patterns such as asynchronous messaging, event-driven workflows, and independent service-to-service communication.
Develop automated unit and integration tests to confirm the expected behavior of software during the build process.
Develop containerized workloads and deployment artifacts; contribute to Kubernetes deployments, configuration, and runtime troubleshooting.
Collaborate with Product, Design, other Engineering teams, and product stakeholders to translate requirements into technical solutions and deliver iteratively.
Improve developer velocity by contributing to CI/CD pipelines, automation, and engineering standards (testing, code review, documentation).
Mentor engineers and raise the quality bar through design reviews, technical guidance, and shared ownership of architecture decisions.
Actively participate in Scrum Agile events and provide your opinion and guidance as a technical professional during team discussions.

Benefits

Fuel Your Life program to support your physical, financial, social, and emotional well-being
Paid holidays and generous time away policies
No-cost mental health support through Employee Assistance Programs
Living Proof program to recognize your peers’ extra effort with points redeemable for rewards
Eight Employee Resource Groups to foster a collaborative culture and expand your network
Unparalleled professional growth with training, development, and internal mobility opportunities
Medical, dental, vision, life, and disability insurance options available from day one
Retirement planning and discounted shares with the Employee Stock Purchase Plan
Tuition assistance and reimbursement program
Paid parental, caregiver, and military leave