I am a versatile software developer with over 5 years of experience in full-stack development, microservices architecture, and modern DevOps workflows. I have a proven ability to lead code reviews, contribute to API design, and collaborate cross-functionally with UI/UX teams, stakeholders, and clients. I have worked in high-impact environments like the CDC ReportStream project, focusing on delivering secure, maintainable, and well-documented software solutions. I am passionate about clean code, continuous learning, and mentoring others in the development community. I thrive in remote and collaborative settings, enjoying the challenge of working across time zones and with diverse teams. I also take initiative in writing onboarding documentation to support new developers in their success.

Tiffin Johnson

I am a versatile software developer with over 5 years of experience in full-stack development, microservices architecture, and modern DevOps workflows. I have a proven ability to lead code reviews, contribute to API design, and collaborate cross-functionally with UI/UX teams, stakeholders, and clients. I have worked in high-impact environments like the CDC ReportStream project, focusing on delivering secure, maintainable, and well-documented software solutions. I am passionate about clean code, continuous learning, and mentoring others in the development community. I thrive in remote and collaborative settings, enjoying the challenge of working across time zones and with diverse teams. I also take initiative in writing onboarding documentation to support new developers in their success.

Available to hire

I am a versatile software developer with over 5 years of experience in full-stack development, microservices architecture, and modern DevOps workflows. I have a proven ability to lead code reviews, contribute to API design, and collaborate cross-functionally with UI/UX teams, stakeholders, and clients. I have worked in high-impact environments like the CDC ReportStream project, focusing on delivering secure, maintainable, and well-documented software solutions.

I am passionate about clean code, continuous learning, and mentoring others in the development community. I thrive in remote and collaborative settings, enjoying the challenge of working across time zones and with diverse teams. I also take initiative in writing onboarding documentation to support new developers in their success.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Beginner
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Language

Javanese
Advanced

Work Experience

Software Engineer at Flexion Inc
May 31, 2025 - July 10, 2025
Engineered scalable Java microservices to digitize testing processes and streamline data workflows. Built high-performance frontend applications using React and Vite, enhancing load times and user experience. Refactored legacy JavaScript applications into TypeScript, improving code quality and maintainability. Deployed and managed containerized applications using Docker across Azure and AWS cloud environments. Designed and optimized relational and NoSQL databases with PostgreSQL and MongoDB. Developed automated unit and integration test suites using JUnit and Python, achieving over 90% code coverage. Implemented CI/CD pipelines via Jenkins and GitHub Actions to streamline releases. Provided mentorship to university students in programming, data structures, and software development principles.
Java Developer at The Software Guild
February 28, 2021 - July 10, 2025
Developed full-stack Java applications using MVC architecture within Agile workflows. Designed and implemented interactive user interfaces with HTML, CSS, and JavaScript, integrating with JSON-based APIs. Built and maintained RESTful services with Spring Boot, ensuring responsive and secure backend performance. Wrote SQL queries, modeled databases, and optimized relational schemas. Utilized Git for version control and participated in team-based code reviews.
Program Coordinator / Website Coordinator at Delaware State University
June 30, 2021 - July 10, 2025
Managed website development and content publishing, significantly improving SEO and site usability. Coordinated state-wide undergraduate research programs, overseeing scheduling, communications, and reporting. Performed operational gap analyses and developed strategies to meet federal grant requirements. Produced digital marketing content and maintained event-based communication campaigns.
Software Engineer at Flexion Inc
May 1, 2025 - August 25, 2025
Developed Java-based microservices for the CDC’s ReportStream healthcare testing pipeline, leveraging HL7v2 and FHIR standards. Designed and implemented frontend applications using React and Vite to enhance performance and clarity. Created and optimized database solutions in PostgreSQL and MongoDB to track metadata across services. Containerized services using Docker, integrating them into CI/CD pipelines with GitHub Actions, Jenkins, and Azure DevOps. Participated in API design and architectural discussions using Lucidchart and Miro, applying Option-Enabling Software Design. Led and collaborated in code reviews enforcing quality with ESLint, Prettier, and Checkstyle. Authored integration and unit tests with JUnit and Spock to maintain high test coverage and naming standards. Collaborated effectively with UI/UX teams, clients, and stakeholders remotely without formal onboarding processes. Authored onboarding documentation for new developers.
Java Developer at The Software Guild
February 1, 2021 - August 25, 2025
Built MVC CRUD web applications using Spring Boot, Java, and MySQL within an Agile environment. Developed a vending machine REST client using HTML, CSS, JavaScript, and JSON. Designed databases with proper SQL schemas and implemented RESTful backend services. Wrote unit tests using JUnit for DAO layers. Practiced Test-Driven Development, version control with GitHub, and participated in team code reviews.
Program Coordinator and Website Coordinator at Delaware State University
January 1, 2021 - August 25, 2025
Led outreach and web development efforts, collaborating with multiple institutions. Built and maintained program websites.

Education

M.A. at University of Delaware
January 1, 2010 - December 31, 2012
B.S. at Delaware State University
January 1, 2008 - December 31, 2010
Master of Energy and Environmental Policy at University of Delaware
January 1, 2010 - January 1, 2012
Bachelor of Science in Natural Resources (Environmental Science) at Delaware State University
January 1, 2008 - January 1, 2010

Qualifications

Full Stack Java Development – The Software Guild, Levels 1-4
February 1, 2021 - February 28, 2021

Industry Experience

Software & Internet, Education, Government, Energy & Utilities, Professional Services, Healthcare