Senior Full Stack Developer
Location: Celebration, FL Onsite 2 days per week (Tuesdays & Fridays; subject to change) Contract Length: 12 months Rate: $70/hr - $83/hr
Position Overview
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.
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.
Numbers & Facts
Location
Celebration, FL
Salary
$70–$83 Per Hour
Skills
Agile Programming Methodologiesunmatched
Amazon Web Services (AWS)unmatched
Analysis Skillsunmatched
AngularJSunmatched
Apache Kafkaunmatched
Application Programming Interface (API)unmatched
Best Practicesunmatched
Cloud Computingunmatched
Code Reviewsunmatched
Communication Skillsunmatched
Cross-Functionalunmatched
Debugging Skillsunmatched
Delivery Drivingunmatched
Detail Orientedunmatched
Distributed Computingunmatched
Documentationunmatched
Elasticsearchunmatched
Identify Issuesunmatched
Industry Standardsunmatched
Javaunmatched
Java Message Service (JMS)unmatched
Microsoft .NETunmatched
Microsoft C# (C Sharp)unmatched
Middlewareunmatched
Needs Assessmentunmatched
OAuthunmatched
Open Sourceunmatched
Production Supportunmatched
Programming Languagesunmatched
Quality Assurance Methodologyunmatched
REST (Representational State Transfer)unmatched
Refactoringunmatched
SSL-TLS (Secure Socket Layer - Transport Layer Security)unmatched
Simple Queue Service (SQS)unmatched
Software Administrationunmatched
Software Designunmatched
Software Developmentunmatched
Software Development Lifecycle (SDLC)unmatched
Software Engineeringunmatched
Software Testingunmatched
Splunkunmatched
Sprint Planningunmatched
Standup Meetingsunmatched
System Migrationunmatched
Test Designunmatched
Test Plan/Scheduleunmatched
Testingunmatched
Tomcatunmatched
Unit Testunmatched
User Interface/Experience (UI/UX)unmatched
Validation Testingunmatched
nginx Web Serverunmatched
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