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Senior Java Developer - (Banking exp must- only W2)

SSI PeopleUnited States🇺🇸United States

Quick overview

SeniorityMid Senior
Work modeHybrid
LocationUnited States
DockerMicroservicesSpringSpring BootOAuthSplunkAngularJWTJavaKafkaRESTKubernetesAgileCI/CD

Job description

Job Title: Sr Software Engineer
Location: Remote
Contract to hire
Only W2 (No C2C)
Job Description
ROLE/RESPONSIBILITIES:
  • Design, build, and maintain inner/orchestration microservices that integrate multiple backend systems (payments, accounts, vendors) to support Payment Center capabilities
  • Develop and enhance API layers and service-to-service interactions, ensuring secure, scalable, and reliable data aggregation across systems
  • Collaborate closely with the front-end Payment Center team and Business to build and integrate UI components (e.g., Payroll tile) and ensure seamless end-to-end user experiences
  • Troubleshoot and optimize performance, resiliency, and fault tolerance across distributed services, including debugging production issues
  • Participate in Agile ceremonies and cross-team coordination to align backend orchestration logic with business flows (ACH, Bill Pay, Payroll, etc.) and ensure timely delivery

MUST HAVE SKILLS: (6-8 years experience)
  • Strong experience building and integrating microservices (Spring Boot / Java preferred)
  • Hands-on experience with backend service design for complex domains (APIs, orchestration, service-to-service communication)
  • Solid understanding of event-driven architecture (Kafka or similar messaging platforms)
  • Experience with containerization and deployment (Docker, Kubernetes/OpenShift)
  • Expertise in API design and integration patterns (REST, secure APIs, contract-first design)
  • Familiarity with enterprise authentication/authorization patterns (CIAM, OAuth, JWT)
  • Experience working with distributed systems, including resiliency, scaling, and fault tolerance
  • Strong debugging and performance tuning skills across microservices
  • UI development experience (Angular or similar) to support front-end integration—specifically for building and integrating UI components like the Payroll tile

FLEX SKILLS:
  • Experience with financial services or payments platforms (billing, payroll, account servicing)
  • Exposure to Payroll integrations (ADP or similar providers)
  • Familiarity with enterprise data platforms (BDC, FNW, or similar transaction/data systems)
  • Experience with CI/CD pipelines and DevOps practices
  • Knowledge of feature toggles and rollout strategies for phased releases
  • Experience working in Agile delivery models with cross-functional teams
  • Understanding of UI/UX best practices for customer-facing applications
  • Exposure to observability tools (Splunk, Dynatrace, or similar)
  • Prior experience working in large-scale enterprise environments with multiple dependent systems

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