Software Engineer Sr

System One; Strongsville (OH); On-site; USD 120,000 - 160,000; Full time

Job summary

System One seeks a Senior Software Engineer to design and deliver scalable backend services and front-end integrations for enterprise applications. You will work across microservices, API design, and event-driven patterns using Java/Spring Boot, Docker, Kubernetes, and modern CI/CD practices.

You'll collaborate with cross-functional teams in Pittsburgh, Cleveland, or Dallas, applying robust security patterns (OAuth/JWT), CIAM, and resilient architectures while building UI components with Angular

Qualifications

• Experience with containerization and deployment (Docker, Kubernetes/OpenShift).
• Experience with distributed systems, resiliency, scaling, fault tolerance.
• Expertise in API design and integration patterns (REST, secure APIs, contract-first design).
• Familiarity with CIAM, OAuth, JWT patterns for authentication/authorization.
• Backend service design for complex domains (APIs, orchestration, service-to-service).
• Solid understanding of event-driven architecture (Kafka or similar).
• Strong debugging and performance tuning across microservices.
• Spring Boot / Java experience for microservices.
• UI development with Angular or similar for front-end integration.

Skills

Docker/Kubernetes

Distributed systems

API design

CIAM/OAuth/JWT

Backend APIs and orchestration

Event-driven architecture (Kafka)

Microservices debugging

Spring Boot / Java

Angular UI integration

Job description

Title - Software Engineer Sr

Location- Pittsburgh, PA/Cleveland, OH/Dallas, TX

Must Have

• Experience with containerization and deployment (Docker, Kubernetes/OpenShift)
• Experience working with distributed systems, including resiliency, scaling, and fault tolerance
• Expertise in API design and integration patterns (REST, secure APIs, contract-first design)
• Familiarity with enterprise authentication/authorization patterns (CIAM, OAuth, JWT)
• 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)
• Strong debugging and performance tuning skills across microservices
• Strong experience building and integrating microservices (Spring Boot / Java preferred)
• UI development experience (Angular or similar) to support front-end integration—specifically for building and integrating UI components like the Payroll tile

Nice To Have

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

Ref: #404-IT Pittsburgh