Justin Cullen

Software Engineer @ Cengage Group

About

Software Engineer with 6 years experience specializing in Ruby, JavaScript, C#, and HTML. Currently building and optimizing Visible Body’s Courseware platform through Agile collaboration, focusing on feature development and performance improvements. Skilled across all development phases, from planning to deployment, with a passion for efficient, workflow-streamlining technical solutions.

Country

United States

City

Boston

Industry

Computer Software

Skill

Agile Methodologies, Amazon Web Services (AWS), Ruby, Ruby on Rails, RubyMine, HTML, JavaScript, Cascading Style Sheets (CSS), Back-End Web Development, Front-End Development, Mobile Applications, Git, Scrum, Web Development, SQL, Game Development, Unity3D, C#, UI, Design

Experience

Software Engineer

Cengage Group

2025-1 - Present · 1 yr 9 mos

Boston, Massachusetts, United States

Full Stack Developer

Visible Body

2023-1 - 2025-10 · 2 yrs 10 mos

Framingham, Massachusetts, United States

• Optimize performance and reliability of the Courseware web application by refactoring Ruby, HTML, JavaScript, and C# codebases to enhance speed and stability, supporting successful feature releases. • Design, develop, and maintain dynamic solutions in an Agile environment, aligning with project requirements to improve user experience and stakeholder satisfaction.

Software Developer

Visible Body

2020-1 - 2023-2 · 3 yrs 2 mos

Framingham, Massachusetts, United States

iOS App Developer

Sacred Heart University

2018-11 - 2020-1 · 1 yr 3 mos

• Developed an iOS event registration app, streamlining the check-in process for the University’s fundraising events, resulting in increased user engagement and operational efficiency.

Game Designer

Sacred Heart University

2018-5 - 2020-1 · 1 yr 9 mos

Fairfield, CT

• Designed an educational mobile app using Unity (C#) to support evidence-based decision-making, aligning features with the School of Nursing’s educational goals.

Game Design Intern

Razbury Games

2018-9 - 2018-12 · 4 mos

Greater New York City Area

• Built a dynamic glossary system in Unity, enabling intuitive user access to in-game icon descriptions for a streamlined gameplay experience. • Designed and deployed a scalable game mode management system on AWS, overseeing the organization of player statistics across multiple tables to enhance data retrieval and ensure seamless UI integration.

Classroom Learning Assistant

Sacred Heart University

2015-9 - 2016-5 · 9 mos

Fairfield CT

• Supported students individually and in small groups to complete assignments and reinforce classroom concepts. • Diagnosed programming homework issues, provided tailored instructions, facilitated discussions, and collaborated with professors to address student needs.