Senior Software Engineer – Java/Spring Migration (Hybrid, 1-year)

KellyMitchell Group; Celebration (FL); Hybrid; USD 76,000 - 109,000; Full time

Benefits offered by this job

Medical Insurance

Dental Insurance

Vision Insurance

Employee-Owned Profit Sharing (ESOP)

401K offered

Job summary

KellyMitchell is seeking a Senior Software Engineer to join a hybrid team in Celebration, FL. The role focuses on supporting a portfolio of middleware, .NET and Java/Spring Boot services, and migrating .NET components to Java throughout the project lifecycle.

The successful candidate will work across full-stack layers, including REST middleware, cloud deployments, and modern front-end integration, with a mix of legacy and greenfield initiatives in a fast-paced environment.

Qualifications

• 7+ years of related software engineering experience.
• Mastery of Java with Spring and open-source technologies such as Tomcat, Nginx, and Elasticsearch.
• Experience with Angular and modern front-end development, including TypeScript, component-based architecture, and REST API integration.
• Experience with C# and .NET Framework and/or .NET Core, including the ability to read, debug, and refactor legacy .NET codebases while delivering equivalent Java/Spring implementations.
• Experience with the full application development lifecycle, including unit testing, code reviews, documentation, and Agile delivery.
• Experience with build and deployment technologies such as Jenkins, GitLab, Harness CI/CD, and Docker.
• Experience with AWS, Kubernetes, and Rancher, as well as monitoring and logging tools such as Grafana, AppDynamics, and Splunk.

Responsibilities

• Participate in the analysis, design, development, debugging, and modification of complex software applications and enhancements
• Design, develop, test, and implement highly scalable software components, fixes, improvements, and new systems and applications
• Build and support REST middleware integrating enterprise consumers
• Maintain and enhance existing .NET applications, including bug fixes, enhancements, and production support
• Plan and execute migrations of .NET services to Java/Spring Boot, including legacy code analysis, API parity, testing, and cutover support
• Participate in the design, testing, deployment, and production support of mission-critical scheduled jobs and services
• Collaborate with engineers, product partners, users, and cross-functional teams to define system requirements and deliver technical solutions

Skills

Java

Spring Framework

REST API

Angular

TypeScript

C#/.NET

Jenkins

GitLab

Docker

Kubernetes

AWS

Tools

Tomcat

Nginx

Elasticsearch

Docker

Kubernetes

Grafana

Splunk

Job description

KellyMitchell is seeking a Senior Software Engineer to join a hybrid team in Celebration, FL. The role focuses on supporting a portfolio of middleware, .NET and Java/Spring Boot services, and migrating .NET components to Java throughout the project lifecycle.

The successful candidate will work across full-stack layers, including REST middleware, cloud deployments, and modern front-end integration, with a mix of legacy and greenfield initiatives in a fast-paced environment.