Specialist, Cybersecurity

About this role

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Skills you'll use

What you'll do

• Nationwide's Cyber Security Operations Center is hiring a hands-on Java engineer to own and extend our existing fleet of integration services that acquire, normalize, and deliver data from complex enterprise and third-party systems. Day one, you'll begin taking over existing projects that execute telemetry and retention pulls from a range of APIs — solving the hard problems that appear beyond a simple REST call: evolving contracts, pagination, throttling, async workflows, GraphQL, Microsoft Graph, gRPC, tricky encodings, and binary data. Over time, the role grows to include Angular backend development — the database access, service orchestration, and secure LLM-powered APIs that support Angular front ends.
• This is a backend and integration engineering role for someone who pairs strong modern Java skills with the instincts of a protocol and data-format troubleshooter.

Who can apply

• Advanced Java and strong production experience with Spring Boot and its ecosystem.
• Strong database integration skills — SQL/NoSQL, transactions, schema design, query tuning, and ORM (Spring Data, JPA/Hibernate, JDBC).
• Building and operating containerized Java services through Git-based CI/CD in Kubernetes or comparable orchestration.
• API integration well beyond basic CRUD — auth, pagination, rate limits, retries, and unreliable upstream behavior — including hands-on Microsoft Graph or similarly complex enterprise APIs.
• Working experience consuming or implementing GraphQL, plus gRPC and Protocol BuAers.
• Deep JSON and XML parsing (Jackson, StAX/SAX/JAXB) with secure parser configurations, and byte-level diagnosis of text-encoding and binary-format issues.
• Resilience engineering — timeouts, retries, backoA, circuit breakers, idempotency, and checkpointing — with strong automated testing (JUnit, contract, and adversarial fixtures).
• Experience integrating applications with LLM APIs or SDKs (structured output, streaming, context limits, provider failures).
• Secure development practices and clear communication of protocol and data quality issues to technical and non-technical stakeholders.

About Nationwide

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