Software Engineer Sr

System One, Inc.; Farmers Branch (TX); On-site; USD 120,000 - 180,000; Full time

Job summary

System One is seeking a Senior Software Engineer to work across multiple US locations (Dallas, Pittsburgh, Cleveland). The role emphasizes building and integrating microservices, designing APIs, and enabling secure, scalable backend services within a distributed architecture. Expect collaboration with UI and frontend teams for Payroll tile integration.

The position targets senior-level engineers with strong expertise in Spring Boot, Docker, Kubernetes, and modern API security patterns.

Qualifications

• 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.

Skills

Distributed systems

API design

Resiliency

Scaling

Fault tolerance

Security APIs

CIAM/OAuth/JWT

Backend service design

Event-driven architecture

Microservices

Java/Spring Boot

UI integration (Angular)

Tools

Docker

Kubernetes/OpenShift

Spring Boot

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