Senior Full Stack (Java/Angular) Developer

Prosum; Celebration (FL); On-site; USD 200,579,000 - 237,829,000; Full time

Job summary

Prosum is hiring a Senior Full Stack Developer for a Celebration, FL onsite role (2 days per week). You will work on middleware, applications, and reporting solutions, maintaining .NET apps while migrating to Java/Spring Boot.

The team collaborates with engineers, product partners, and external contractors to deliver mission-critical systems. The role requires strong Java/Spring experience, Angular front-end skills, and familiarity with cloud, containers, and CI/CD pipelines.

Qualifications

• Minimum 7 years of related work experience.
• Proficient in Java with Spring; experience in Angular and REST API integration.
• Exposure to C# and .NET (Framework and/or Core) and legacy migration experience.
• Comfortable in an Agile environment with stand-ups and sprint planning.
• Experience with build/deploy tools: Jenkins, GitLab, Harness CI/CD, Docker.

Responsibilities

• Participate in all stages of the software development lifecycle.
• Design and implement scalable software components and services.
• Develop solutions for local, networked, cloud-based, and internet-facing environments.
• Migrate legacy .NET to Java/Spring and ensure API parity during migrations.
• Perform testing, debugging, and production support for applications.

Skills

Strong communication

Agile

Education

Bachelor's degree

Tools

Java

Spring

Angular

TypeScript

REST API

Tomcat

Nginx

Elasticsearch

AWS

Kubernetes

Docker

Jenkins

GitLab

Harness CI/CD

Grafana

AppDynamics

Splunk

Job description

Location: Celebration, FL – Onsite 2 days per week (Tuesdays & Fridays; subject to change)
Contract Length: 12 months
Rate: $70/hr - $83/hr

Position Overview

Senior Full Stack Developer

We are seeking a Senior Full Stack Developer to join a technology team responsible for business-critical middleware, applications, scheduled processing, and reporting solutions.

The environment includes existing .NET applications as well as newer Java/Spring Boot services. This position will support ongoing .NET application maintenance while also contributing to initiatives that migrate legacy .NET services to Java/Spring Boot.

The developer will work closely with engineers, product partners, external partners, contractors, and other cross-functional technology teams.

Location: Celebration, FL – Onsite 2 days per week (Tuesdays & Fridays; subject to change)
Contract Length: 12 months
Rate: $70/hr - $83/hr

Key Responsibilities

• Participate throughout the software development lifecycle, including analysis, design, development, debugging, testing, deployment, and enhancement of new and existing applications.
• Design, develop, test, and implement highly scalable software components, enhancements, fixes, systems, and applications.
• Develop solutions used across local, networked, cloud-based, and internet-facing environments.
• Write and maintain application code at the component level while contributing to large and sophisticated software systems.
• Apply strong knowledge of current programming languages, frameworks, and development technologies to complete complex engineering assignments.
• Work with users and stakeholders to understand system requirements and identify necessary modifications.
• Build and support REST-based middleware integrating with enterprise consumers and systems.
• Participate in the design, testing, deployment, and production support of mission-critical scheduled jobs and services.
• Maintain and enhance existing .NET applications, including bug fixes, enhancements, troubleshooting, and production support.
• Analyze legacy .NET applications and plan and execute migrations to Java/Spring Boot.
• Support API parity, testing, validation, and production cutover activities associated with .NET-to-Java migrations.
• Perform application testing and debugging and participate in production troubleshooting and support.
• Follow software engineering best practices related to unit testing, code reviews, documentation, and maintainable application design.

Required Qualifications

• Minimum 7 years of related work experience.
• Mastery of Java and experience with industry-standard open-source technologies such as Spring, Tomcat, Nginx, and Elasticsearch.
• Experience with Angular and modern front-end development, including TypeScript, component-based architecture, and REST API integration.
• Exposure to C# and .NET, including .NET Framework and/or .NET Core.
• Ability to read, debug, and refactor legacy .NET codebases while delivering equivalent Java/Spring implementations.
• Comfortable working in an Agile environment, with experience participating in Agile delivery practices such as stand-ups and sprint planning.
• Experience with the full application development lifecycle, including best practices for unit testing, code reviews, and documentation.
• Experience with build and deployment technologies including Jenkins, GitLab, Harness CI/CD, and Docker.
• Experience with monitoring and logging technologies including Grafana, AppDynamics, and Splunk.
• Experience working with cloud platforms and container orchestration technologies, including AWS, Kubernetes, and Rancher.
• Ability to work effectively with external partners and contractors.
• Strong communication skills and attention to detail.

Preferred Qualifications

• Experience with strangler-fig or incremental migration patterns, including parallel runs, feature flags, and phased cutovers.
• Familiarity with event-driven and messaging architectures, such as Kafka, SNS/SQS, JMS, or similar technologies.
• Knowledge of security best practices for APIs and distributed systems, including OAuth, JWT, TLS, and secrets management.

Education

Bachelor's degree required.