Senior Full-Stack Engineer: Build Scalable SaaS with AI

RON SUNSHINE ASSOCIATES LLC; Columbus (OH); On-site; USD 120,000 - 180,000; Full time

Job summary

RON SUNSHINE ASSOCIATES LLC in Columbus, OH invites a Senior Software Engineer to build and own full-stack SaaS features using Rails, React/TypeScript, and PostgreSQL. You’ll shape architecture, mentor peers, and leverage AI-assisted tools to accelerate development.

Join a mission-driven team that values ownership, pragmatic engineering, and collaboration, with opportunities to influence modern practices and long-term product impact.

Qualifications

• 5+ years of professional software engineering experience in SaaS or web apps.
• Strong hands-on experience with Rails, React/TypeScript, and PostgreSQL.
• Working knowledge of AWS and cloud-based development.
• Experience owning features from design through production.
• Experience with automated testing, CI/CD, and modern engineering practices.
• Experience mentoring engineers and collaborating on architecture.

Responsibilities

• Build and own new product features from design through testing, deployment, and ongoing enhancements.
• Develop full-stack SaaS applications using Ruby on Rails, React/TypeScript, and PostgreSQL.
• Shape technical design decisions, API and database structures.
• Leverage AI-assisted development tools to accelerate coding, testing, debugging, and productivity.
• Collaborate with a Principal Engineer to evolve AI-driven practices.
• Mentor other engineers through code reviews and knowledge sharing.
• Own production performance, quality, and scalability, with continuous improvement.

Skills

SaaS

Ruby on Rails

React/TypeScript

PostgreSQL

AWS

CI/CD

AI tools

Mentoring

Ownership

Tools

GitHub Copilot

Claude Code

Codex

Job description

RON SUNSHINE ASSOCIATES LLC in Columbus, OH invites a Senior Software Engineer to build and own full-stack SaaS features using Rails, React/TypeScript, and PostgreSQL. You’ll shape architecture, mentor peers, and leverage AI-assisted tools to accelerate development.

Join a mission-driven team that values ownership, pragmatic engineering, and collaboration, with opportunities to influence modern practices and long-term product impact.