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Ruby Developer

Role overview

Qualifications

  • 6+ years of strong Ruby on Rails experience.
  • Experience with relational databases such as PostgreSQL or MySQL.
  • Experience with the RSpec testing framework.
  • Strong experience designing, building, and maintaining APIs.

Responsibilities

  • Design and develop APIs, including specifications, endpoints, data models, and protocols such as REST and GraphQL.
  • Contribute production-grade code for core services.
  • Partner with the Technical Lead to conduct code reviews and ensure code quality, maintainability, and security.
  • Work closely with the Engineering Crew Lead and API Architect to review solution design and deliver robust, scalable solutions.

About the company

Johnson Technology Systems Inc logo

Johnson Technology Systems Inc

IT Services & IT Consulting

Driving Digital Transformation with Cutting-Edge IT & Engineering Solutions Established in 2003, JTSi (Johnson Technology Systems Inc.) is a trusted IT and Engineering Services provider with a strong track record of delivering mission-critical solutions to both the Public and Private Sectors. We specialize in Digital Transformation, Cloud Migration, SAP RISE implementation, S/4HANA upgrades, SAP BTP solutions (Concur, SuccessFactors), SAP AI (Joule) strategy, and Managed Services (MSP)—helping businesses and government agencies optimize operations and achieve success. With a customer-first approach, we don’t just offer services; we build long-term partnerships that drive innovation and efficiency. Our solutions are backed by an experienced team of cleared professionals, including PMI, ITIL & Black Belt-certified managers, ensuring secure, scalable, and high-performing IT environments. Why JTSi? ✔ Trusted by the U.S. Department of Defense since 2003 ✔ Proven success in Government & Commercial Sectors ✔ ISO 20000-1 & CMMI-L3 Certified | ITAR Registered ✔ Highly successful Cooperative R&D Agreement with the U.S. Army ✔ 97% rating in D&B/Open-Ratings Supplier Performance Evaluation ✔ Expertise in SAP, AI, Cloud, and Managed Services ✔ Cleared Facilities with Dedicated Security Officers Onsite ✔ University Innovation Center Partnerships From SAP RISE implementation to Cloud Migrations and AI-driven automation, JTSi is at the forefront of innovation. Our E2E cloud-based processes and MSP solutions enable organizations to scale efficiently while staying compliant with DoD, FedRAMP, CMMC, and ITAR standards. At JTSi, "Customer is Always First." We do what we say—ensuring reliability, security, and unmatched excellence in IT services. Explore the future with JTSi. Connect with us today!

Company details

IndustryIT Services & IT Consulting
Company size51 - 200

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Job description

"WE DO WHAT WE SAY "

JTSi
is a federal government consulting firm, providing technical services to the Federal Government, i.e., DoD, Client and various Civilian Agencies. We are proud to have earned the reputation of honesty, integrity and the ability to build long-term professional relationships with our employees and clients. Please visit our website at www.JTSUSA.com to learn more about who we are and what we do.

Company Name: - JTSi (Johnson Technology Systems, Inc.)
Title: Ruby Developer
Location: Remote
Salary : $121K - $126K / Year


DESCRIPTION OF PROJECT AND TASKS:

The Ruby Developer will be part of a technical team responsible for designing, developing, and maintaining APIs that enable communication between different software systems. The ideal candidate is a strong Ruby engineer with hands-on development experience and the ability to contribute production-grade code.

Responsibilities
• Design and develop APIs, including specifications, endpoints, data models, and protocols such as REST and GraphQL.
• Contribute production-grade code for core services.
• Partner with the Technical Lead to conduct code reviews and ensure code quality, maintainability, and security.
• Work closely with the Engineering Crew Lead and API Architect to review solution design and deliver robust, scalable solutions.
• Ensure seamless integration of APIs with internal systems, external applications, and third-party services.
• Promote effective use of AI-enabled tools in the API development lifecycle to improve productivity and code quality.
• Create and maintain clear, comprehensive API documentation for consumers, including usage guidance and best practices.
• Implement and uphold security best practices, including authentication, authorization, and encryption.
• Interface with external engineering teams to ensure alignment on technical standards, governance requirements, compliance obligations, and ongoing cATO maintenance.
• Monitor and optimize API performance, reliability, and scalability.
• Manage API versioning and support backward compatibility as services evolve.
• Provide ongoing support, troubleshoot production issues, and implement enhancements based on stakeholder feedback.
• Participate in Tier 1 and Tier 2 on-call operations.

Qualifications & Skills
• 6+ years of strong Ruby on Rails experience.
• Experience with relational databases such as PostgreSQL or MySQL.
• Experience with the RSpec testing framework.
• Strong experience designing, building, and maintaining APIs.
• Ability to lead engineering teams while remaining hands-on with development.

Desirable Skills
• Familiarity with Docker, Kubernetes, and Helm.
• Familiarity with application security principles and secure development practices.
• Familiarity with Git version control.
• Familiarity with OAuth.
• Experience with async job processing tools such as Sidekiq.
• Experience with Spring Boot / Java.

We recruit, employ, train, compensate and promote without regard to race, religion, color, citizenship, national origin, age, sex, gender, gender identity/expression, sexual orientation, marital status, disability, genetic information, veteran status or any other characteristic protected by federal, state, or local law.

Disclaimer: Nothing in this job description/posting shall constitute an offer or promise of employment. If you are not reviewing this job posting on our Careers' site http://jtsusa.com/careers or one of our approved job boards we cannot guarantee the validity of this posting. For a list of our current postings, please visit us at http://jtsusa.com/careers

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Marcus Rivera

Chief Revenue Officer

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