Senior Software Engineer - Fullstack (Ruby on Rails)

About this role

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Software Engineer – Fullstack (Ruby on Rails) based in the United States.

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.

### Accountabilities:

As a Senior Software Engineer, you will design, build, test, and maintain full-stack applications while ensuring technical quality, security, and accessibility. Your responsibilities will include:

• Translate business objectives and user needs into effective technical solutions using Ruby on Rails and modern web technologies.
• Design, develop, and maintain responsive, accessible, user-facing features using React and other front-end technologies.
• Build and integrate RESTful APIs that support front-end functionality and reliable application performance.
• Contribute throughout the product lifecycle, including backlog refinement, development, testing, documentation, deployment, and delivery.
• Develop secure, scalable, and maintainable cloud-based applications for...