Senior Full Stack Software Engineer, Ruby on Rails

Ad Hoc LLC

. Design, develop, test, and maintain full-stack applications using Ruby on Rails, React.js, PostgreSQL, and related technologies .

Posted 10/9/2026full-timeRemote • United StatesSenior💰 $120,000 - $135,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in full-stack application development using Ruby on Rails, React.js, and PostgreSQL, with a strong focus on API design, integration, and troubleshooting. Proven ability to mentor engineers, communicate technical concepts effectively, and contribute to continuous improvement in software development processes.

Highest-signal resume keywords

Full-Stack Application DevelopmentAPI Design and IntegrationRuby on RailsReact.jsPostgreSQL

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Full-Stack Application DevelopmentAPI DesignAPI IntegrationTesting and DebuggingApplication MonitoringTechnical DocumentationVersion Control SystemsAutomated TestingSoftware Development MethodologiesProblem-Solving

Soft Skills

Effective CommunicationMentoringCollaborationAnalytical ThinkingTroubleshooting

Tools & Technologies

DatadogAI-Assisted Coding ToolsCurlPostmanGitHub CopilotClaude CodeOpenAI CodexAWS

Certifications & Qualifications

Bachelor's Degree in Computer SciencePublic Trust Background Investigation

Industry Keywords

Federal Government ProgramsPublic-Sector Digital ServicesAgile Software DevelopmentTechnical GuidanceEngineering Best Practices

Tech Stack

Tools & technologies

AWSJavaScriptPostgresReactRubyRuby on Rails

About the role

Key responsibilities & impact

Design, develop, test, and maintain full-stack applications using Ruby on Rails, React.js, PostgreSQL, and related technologies
Own application features and components, ensuring code quality, reliability, maintainability, and performance
Build, maintain, and troubleshoot RESTful APIs and integrations with internal systems, third-party services, and government platforms
Collaborate with engineers, product managers, designers, stakeholders, and government partners to translate requirements and user needs into scalable technical solutions
Diagnose and resolve complex application issues, identify root causes, and implement sustainable improvements
Develop and maintain application monitoring, dashboards, and alerts using Datadog or similar observability platforms
Use AI-assisted development tools to support coding, debugging, testing, and development efficiency
Participate in code reviews, technical design discussions, architecture planning, and engineering best-practice initiatives
Evaluate technical approaches, identify tradeoffs, and recommend solutions balancing performance, scalability, maintainability, and program needs
Maintain awareness of adjacent technical systems, infrastructure, and dependencies
Create and maintain technical documentation, including design specifications, architecture diagrams, implementation details, and research findings
Communicate technical concepts, challenges, and recommendations clearly
Mentor junior and mid-level engineers and support their professional development
Contribute to continuous improvement initiatives for software development processes, system reliability, and team effectiveness
Participate in technical interviews and engineering hiring efforts as needed
Lead smaller technical initiatives or workstreams when appropriate

Requirements

What you’ll need

Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related field and at least 7 years of professional software engineering experience
Additional relevant professional experience may be considered in lieu of a degree
Strong hands-on experience developing and maintaining full-stack applications using Ruby on Rails, React.js, and PostgreSQL
Demonstrated expertise in at least one core engineering discipline, such as backend development, frontend development, or infrastructure engineering
Experience designing, developing, integrating, and troubleshooting APIs, including third-party or government system integrations
Hands-on experience testing and debugging API requests and responses using tools such as curl, Postman, or equivalent utilities
Experience building and maintaining application dashboards, monitors, and alerts using Datadog or a comparable observability platform
Understanding of monitoring strategies, alerting thresholds, application performance, and incident troubleshooting
Experience using AI-assisted coding tools such as Claude Code, OpenAI Codex, GitHub Copilot, or comparable solutions in professional development workflows
Experience with version control systems, code review practices, automated testing, and modern software development methodologies
Strong analytical, troubleshooting, and problem-solving skills
Ability to communicate technical concepts effectively and collaborate with engineers, product teams, and technical and nontechnical stakeholders
Experience providing technical guidance, mentoring engineers, and contributing to engineering best practices
Must be able to successfully complete and maintain the required federal Public Trust background investigation and meet all applicable agency-specific suitability requirements
Preferred: Experience with Amazon Web Services (AWS)
Preferred: Previous experience supporting federal government programs or large-scale public-sector digital services
Preferred: Familiarity with Agile software development practices and multidisciplinary product teams

Benefits

Comp & perks

Company-subsidized health, dental, and vision insurance
Flexible PTO
401K with employer match
Paid parental leave after one year of service
Employee Assistance Program