Senior Full-Stack Engineer: Build Impactful SaaS

ExcelliSearch, Inc.; North Carolina; On-site; USD 120,000 - 180,000; Full time

Job summary

ExcelliSearch, Inc. is seeking a Senior Software Engineer to build novel SaaS products and own features from design through production.

You will contribute to architecture decisions and APIs, while advancing modern AI-assisted development practices with the team. You will work with Ruby on Rails, React/TypeScript, PostgreSQL, and AWS, and play a key role in mentoring engineers and improving code quality, performance, and scalability.

Qualifications

• 5+ years of professional software engineering experience, SaaS or web-based products preferred.
• Strong hands-on experience with Ruby on Rails, React/TypeScript, and PostgreSQL.
• Working knowledge of AWS and cloud-based application development.
• Experience owning software features from design through production.
• Experience with automated testing, CI/CD, and modern software engineering practices.
• Practical experience using AI coding tools such as Claude Code, GitHub Copilot, Codex, or similar technologies.
• Strong problem-solving skills and ability to work independently while collaborating with a team.

Responsibilities

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

Skills

Ruby on Rails

React/TypeScript

PostgreSQL

AWS

CI/CD

AI coding tools

Mentoring

Tools

Claude Code

GitHub Copilot

Codex

Job description

ExcelliSearch, Inc. is seeking a Senior Software Engineer to build novel SaaS products and own features from design through production.

You will contribute to architecture decisions and APIs, while advancing modern AI-assisted development practices with the team. You will work with Ruby on Rails, React/TypeScript, PostgreSQL, and AWS, and play a key role in mentoring engineers and improving code quality, performance, and scalability.