Nationwide IT Services, Inc. · 2 weeks ago
API Integration Specialist
Fairfax, VA
Full-time
Hybrid
Mid Level
3+ years expNationwide IT Services, Inc. is an IT and Management consulting company seeking an API Integration Specialist. The role involves designing, developing, and maintaining RESTful APIs and integration services, ensuring robust integration with internal and external systems, and supporting data mapping and validation.
Cyber SecurityInformation ServicesInformation TechnologyManagement Consulting
No H1B
Security Clearance Required
Responsibilities
Design, develop, and maintain RESTful APIs and integration services using Java, Spring Boot, and microservices patterns
Implement API contracts (OpenAPI/Swagger), versioning strategies, backward compatibility, and deprecation plans
Build integrations to internal platforms (identity, logging, data services) and external partner systems using secure API patterns (OAuth2/OIDC where applicable)
Develop message transformation, orchestration, and mediation logic (JSON/XML), including canonical models when needed
Implement resiliency patterns, retries with backoff, circuit breakers, idempotency, rate limiting, bulkheads, and timeouts
Integrate microservices with Oracle databases using robust data access patterns (JPA/Hibernate)
Write and optimize SQL queries, stored procedures/packages (if applicable), and ensure efficient indexing and performance
Support data mapping, validation rules, referential integrity, and transactional consistency
Build automated tests: unit, integration, contract, and regression; support performance/load testing
Troubleshoot incidents across environments; perform root cause analysis and implement preventative fixes
Qualification
Required
Design, develop, and maintain RESTful APIs and integration services using Java, Spring Boot, and microservices patterns
Implement API contracts (OpenAPI/Swagger), versioning strategies, backward compatibility, and deprecation plans
Build integrations to internal platforms (identity, logging, data services) and external partner systems using secure API patterns (OAuth2/OIDC where applicable)
Develop message transformation, orchestration, and mediation logic (JSON/XML), including canonical models when needed
Implement resiliency patterns, retries with backoff, circuit breakers, idempotency, rate limiting, bulkheads, and timeouts
Integrate microservices with Oracle databases using robust data access patterns (JPA/Hibernate)
Write and optimize SQL queries, stored procedures/packages (if applicable), and ensure efficient indexing and performance
Support data mapping, validation rules, referential integrity, and transactional consistency
Build automated tests: unit, integration, contract, and regression; support performance/load testing
Troubleshoot incidents across environments; perform root cause analysis and implement preventative fixes
Assist in the Discovery Phase activities of gathering user requirements, business analysis, legacy system analysis, Epic/Story creation, external data integration planning, and product backlog management
Preferred
Active Secret Clearance preferred
Bachelor's Degree in Computer Science or Information Systems
3+ years of experience designing and implementing API integrations and backend services in Java
Strong hands-on development experience with Java and Spring Boot (REST controllers, service layers, security, configuration)
Solid experience with SQL: schema understanding, query optimization, joins, indexing strategies, and performance troubleshooting
Familiarity with API documentation and standards: OpenAPI/Swagger, JSON schema, API versioning
Strong understanding of REST, SOAP, XML, and JSON in API development
Experience with service mesh / zero trust patterns, or enterprise API management tooling
Benefits
Medical, dental, and vision insurance
Life and disability insurance
401(k) plan with employer match
Paid holidays
PTO (sick/vacation)
Commuter benefits
Employee assistance program (EAP)
Educational reimbursement
Pet Insurance
Company
Nationwide IT Services, Inc.
Nationwide IT Services, Inc.
201-500 employees
Funding
Current Stage
Growth StageCompany data provided by crunchbase