Full Stack Ruby on Rails Developer

About DMI

DMI is a leading provider of digital services and technology solutions, headquartered in Tysons Corner, VA. With a focus on end-to-end managed IT services, including managed mobility, cloud, cybersecurity, network operations, and application development, DMI supports public sector agencies and commercial enterprises around the globe. Recognized as a Top Workplace, DMI is committed to delivering secure, efficient, and cost-effective solutions that drive measurable results. Learn more at

About the Opportunity

DMI, LLCis seeking a Full-Stack Ruby on Rails Developer , to work onsite in our Cincinnati office and contribute to developing our SaaS Telecom Expense Management platform. As a Full Stack Ruby Developer, you will play a key role in building and enhancing our SaaS Telecom Expense Management platform. Your work will involve designing and maintaining backend systems that handle large-scale data parsing and processing, ensuring robust performance and accuracy. You will also create and optimize RESTful and GraphQL APIs, enabling quality integrations with external systems and delivering reliable and efficient backend infrastructure. This individual will be comfortable with the Ruby on Rails applicaiton development and management, but will also be able to work with our in-development data pipeline in Python. Eventually, this individual will be able to take ownership of the process of converting our existing data in Ruby to our new Python based pipeline.

On the front end, you will develop user-friendly, responsive interfaces that provide an intuitive experience for our users. By leveraging , you will ensure the platform remains visually appealing, efficient, and easy to navigate. Your expertise will be critical in bridging the gap between design and functionality, creating a product that stands out for its usability and technical sophistication.

Collaboration is central to this role. You will work closely with product managers, designers, and fellow developers to define and implement new features, enhance existing functionalities, and continuously improve the platform. You will also be responsible for mentoring junior developers, conducting code reviews, and establishing a culture of collaboration and innovation.

Key Responsibilities :

• Backend Development : Design and build backend components to handle large-scale data parsing, processing, and storage efficiently.
• Frontend Development : Develop user-friendly, responsive, and highly functional interfaces that enhance our customer experience.
• Data Parsing : Implement and maintain robust parsing workflows to process and analyze complex datasets.
• Collaborate Across Teams : Partner with product managers, designers, and other developers to define features and improve the platform.
• API Development : Create and optimize RESTful and GraphQL APIs to ensure seamless integration with external systems.
• Problem Solving : Troubleshoot and resolve complex production issues to maintain platform reliability and performance.
• Mentorship : Conduct code reviews, offer constructive feedback, and mentor junior developers to foster growth within the team.
• Continuous Improvement : Stay updated on emerging technologies and best practices to recommend and implement improvements.

Qualifications

Education and Years of Experience :

Required and Desired Skills / Certifications :

Min Citizenship Status Required : Must be a . Citizen

Location : Must be open to onsite in Cincinnati, OH

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Working at DMI

DMI is a diverse, prosperous, and rewarding place to work. Our culture is shaped by five core values that guide how we work, grow, and succeed together :

These values aren’t just ideals—they show up in how we support every part of your well-being :

DMI values employees for their talents and contributions, and we take pride in helping our customers achieve their goals. Because when we live our values, we all win together.

Applicants selected may be subject to a government security investigation and must meet eligibility requirements for access to classified information. US citizenship may be required for some positions.