Senior Java Developer

Job Description

Manifest Solutions is currently seeking a Senior Java Developer for a hybrid position in Dublin, OH.

Design and develop enterprise-grade Java applications and distributed systems that drive our healthcare navigation platform.

Architect and implement scalable, reliable, and secure backend services within a cloud-native (AWS) ecosystem.

Collaborate across teams — product, DevOps, and data — to turn complex healthcare and business needs into elegant, high-performance solutions.

Champion system design and best practices for performance, security, and maintainability.

Integrate automation into testing, deployment, and monitoring pipelines to improve quality and delivery speed.

Mentor and support other engineers, fostering a culture of learning, ownership, and technical excellence.

Qualifications

7+ years of professional experience in Java application development and system design.

Proven ability to design and build distributed, cloud-based systems using Spring Boot and Hibernate/JPA.

Strong understanding of microservices architecture, GraphQL and RESTful APIs, and event-driven systems (Kafka experience a plus).

Experience with AWS services and best practices for cloud scalability and resilience.

Hands-on experience with CI/CD, testing automation, and tools such as Maven, Gradle, GitHub Actions, or Jenkins.

Working knowledge of SQL and relational databases (Postgres, SQL Server).

Familiarity with front-end frameworks such as React or React Native is a plus.

Strong analytical thinking, problem-solving, and communication skills.

Passion for improving healthcare systems through technology and innovation.

Nice to Have

Experience with TDD/BDD, domain-driven design (DDD), or event-driven architectures.

Understanding of healthcare data and compliance standards (HIPAA, HL7, FHIR).

Background in scaling enterprise applications or working within a growing organization.

Full-time