Java Lead (Spring WebFlux)

About the role

OnTrac is looking for a Java Lead (Spring WebFlux) to lead a development team building and supporting reactive microservices for a banking and payments customer in Las Vegas. The role covers technical design, API and microservice architecture, and application stability, including production support, incident management and root cause analysis. It suits a hands-on technical lead with deep Spring reactive programming experience who can lead a team, own production and keep management informed with regular updates.

The engagement is expected to start ASAP, is long term and full time or contract, and is onsite Monday to Friday in Las Vegas. Candidates must be located in, or willing to relocate to, the Las Vegas area and authorized to work in the United States.

Key responsibilities

• Lead a development team: set technical direction, review code and mentor engineers
• Design and build reactive microservices with Java, Spring Boot and Spring WebFlux
• Design APIs and apply sound architecture and design patterns across services
• Build event-driven integrations with Kafka
• Own production support and application stability: incident response, root cause analysis and permanent fixes
• Work across SQL and NoSQL data stores, Kubernetes and CI/CD pipelines
• Provide regular status and technical updates to management and stakeholders

Required profile

• Bachelor's degree plus 12+ years of IT experience after graduation
• Proven technical lead experience leading a development team
• Banking and payments domain experience
• Strong client-facing communication

Required skills

• Spring reactive programming with Spring WebFlux (mandatory)
• Java, Spring Boot, Spring MVC and microservices design
• Kafka or similar message queues
• SQL and NoSQL databases (e.g. SQL Server, PostgreSQL, MySQL, Redis, MongoDB)

Useful qualifications include cloud platforms (AWS, Azure, GCP), Kubernetes, DevOps processes, CI/CD tools and React.