Senior Software Engineer - Fullstack (Ruby on Rails)

Join a mission-driven digital services team building secure, modern applications that improve how government agencies serve the public. As a Senior Software Engineer, you will contribute across the full software development lifecycle, combining strong Ruby on Rails expertise with React-based front-end development. You will work in small, cross-functional teams to transform complex business needs into accessible, reliable, and scalable digital solutions. Your work will support meaningful public-sector missions, including public health, financial regulation, immigration services, and identity and access management. Collaborating closely with product managers, designers, researchers, and fellow engineers, you will help deliver high-quality applications using modern cloud infrastructure and continuous delivery practices. This opportunity offers technical ownership, a calm and collaborative working environment, and the chance to make a tangible difference through technology.

The ideal candidate is an experienced full-stack engineer who combines strong Ruby on Rails expertise with modern front-end development skills and a commitment to delivering reliable, user-focused software. Required qualifications include:

• At least 8 years of professional software development experience.

• At least 4 years of professional Ruby on Rails development experience.

• Strong front-end development experience using React.

• Proven experience working effectively within Agile development teams.

• Experience deploying applications through CI/CD pipelines and working with cloud environments such as AWS.

• Experience with relational databases, including PostgreSQL, MySQL, or similar technologies.

• Solid understanding of object-oriented programming (OOP) principles and their practical application.

• Strong experience designing and developing RESTful APIs.

• Working knowledge of test-driven or behavior-driven development methodologies.

• A fundamental understanding of infrastructure, monitoring, and observability practices.

• Strong written and verbal communication skills, with the ability to collaborate effectively across multidisciplinary teams.

• A proactive, adaptable mindset and the ability to navigate ambiguity, evolving requirements, and changing priorities.

• Ability to obtain and maintain a Public Trust clearance.

• U.S. citizenship, as required for this federal government contractor position.

Preferred qualifications include:

• Experience delivering digital services for government or public-sector organizations.

• Familiarity with identity verification and authentication systems.

• Experience implementing accessibility-focused development practices.

• Experience collaborating closely with UX teams and incorporating research findings into product development.

• Knowledge of modern front-end architecture and performance optimization techniques.