Senior Java Developer

Software Guidance & Assistance, Inc., (SGA), is searching for a Senior Java Developer for a contract assignment with one of our premier financial services clients in Jersey City, NJ .


Required Skills :

• Strong track record (10+ years) of relevant experience in the design and development of enterprise-grade Java-based systems.
• 10+ years' hands-on experience in Java 17/21/25 LTS (Java 25 preferred), Core Java, Jakarta EE (J2EE), Spring Framework 7 / Spring Boot 4.x RESTful services.
• Working knowledge of modern Java language features and exposure to JVM internals - tuning and performance profiling.
• Databases - Oracle or equivalent (PostgreSQL/MySQL) with strong SQL and PL/SQL programming expertise; schema versioning via Flyway/Liquibase.
• Proficient in using AI-assisted development tools such as Claude, GitHub Copilot, Devin, Cursor for code generation, review, and productivity acceleration.
• Experience working across multiple technologies and medium-to-complex distributed systems; well versed with design standards, patterns, and enterprise frameworks.
• Fast learner of new tools, frameworks, and technologies; comfortable working with distributed/cross-timezone teams.
• Experience in event-driven architecture - Spring Boot components integrating with Apache Kafka and MQ (IBM MQ), including partitioning, consumer groups, idempotency, and transactional outbox patterns.
• Excellent knowledge of Relational Databases, SQL, and ORM technologies (JPA 2/3, Hibernate 6) and connection pooling (HikariCP).
• Strong understanding of Spring Security 6+ - OAuth2.0/OIDC, JWT-based stateless auth, RBAC/ABAC.
• Familiarity with API design - REST with OpenAPI/Swagger, and exposure to high-performance service communication.
• Resilience patterns using Resilience4j - circuit breaking, rate limiting, retries.
• Caching and NoSQL exposure - Redis, MongoDB, Elasticsearch; awareness of vector databases (Pgvector,) for AI/RAG-integrated services is a plus.
• Exposure to Spring AI and LLM integration patterns (RAG workflows) is an added advantage.
• Tools - Well versed with IntelliJ IDEA/Eclipse.
• Test-Driven Development and automated testing: JUnit 5, Mockito, AssertJ, Cucumber/Gherkin, Testcontainers for integration testing, contract testing (WireMock/Spring Cloud Contract); JIRA, Maven/Gradle, SonarQube.
• Experience with version control - GIT, Bitbucket, GitHub (including PR/branching workflows).
• Experience with Docker, multi-stage builds, Red Hat OpenShift, and Kubernetes (Deployments, ConfigMaps, Secrets, Ingress, HPA/KEDA autoscaling).
• Experience with CI/CD systems such as Jenkins, GitHub Actions, GitLab CI, or ArgoCD.
• Observability exposure - Micrometer, Prometheus, Grafana, distributed tracing via OpenTelemetry/Zipkin/Jaeger.
• Strong understanding of the full Software Development Life Cycle (SDLC).
• Experience in Agile methodologies - Scrum, sprint planning, and iterative delivery.

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SGA is a technology and resource solutions provider driven to stand out. We are a women-owned business. Our mission: to solve big IT problems with a more personal, boutique approach. Each year, we match consultants like you to more than 1,000 engagements. When we say let's work better together, we mean it. You'll join a diverse team built on these core values: customer service, employee development, and quality and integrity in everything we do. Be yourself, love what you do and find your passion at work. Please find us at .


SGA is an Equal Opportunity Employer and does not discriminate on the basis of Race, Color, Sex, Sexual Orientation, Gender Identity, Religion, National Origin, Disability, Veteran Status, Age, Marital Status, Pregnancy, Genetic Information, or Other Legally Protected Status. We are committed to providing access, equal opportunity, and reasonable accommodation for individuals with disabilities in employment, and our services, programs, and activities. Please visit our company to request an accommodation or assistance regarding our policy.