AI-First Principal Software Engineer & Platform Leader

Fullbay, Inc.; Phoenix (AZ); On-site; USD 150,000 - 210,000; Full time

Job summary

Fullbay, Inc. is seeking a Principal Software Engineer to lead architectural decisions and drive innovation across our SaaS platform for heavy-duty repair shops.

This role emphasizes production excellence, mentorship, and strategic impact beyond day-to-day coding. You will prototype solutions, evaluate new technologies, and establish standards while collaborating with principal engineers and product leadership to deliver scalable, reliable systems.

Qualifications

• 10-15 years of experience in software design and development.
• Bachelor's degree in Computer Science or equivalent experience.
• Proven ability to design and implement scalable, distributed systems.
• Strong communication skills with ability to influence technical decisions across the organization.

Responsibilities

• Technical Leadership & Innovation
• Design and implement complex, high-impact features that significantly increase business value and advance Fullbay's capabilities
• Drive architectural decisions that simplify implementations, improve performance, and establish patterns for the entire engineering organization
• Investigate and evaluate new technologies, establish the technical platform, and define the stack
• Quickly prototype solutions and deliver proof-of-concepts that turn speculative ideas into concrete implementations
• Own production excellence—proactively identify issues, establish monitoring standards, and drive performance, scale, and availability goals
• Lead Architecture Decision Record (ADR) processes and ensure alignment on technical standards
• Serve as technical advisor to senior leadership—communicate development goals, progress, and strategic direction
• Mentor other engineers through code reviews, pairing sessions, and formal training
• Establish code review standards, branching strategies, and software development methodologies

Skills

Modern software design

Mentorship & team development

Architectural design

Communication with leadership

Production systems ownership

Education

Bachelor's degree in Computer Science or equivalent

10-15 years of experience in software design and development

Job description

Fullbay, Inc. is seeking a Principal Software Engineer to lead architectural decisions and drive innovation across our SaaS platform for heavy-duty repair shops.

This role emphasizes production excellence, mentorship, and strategic impact beyond day-to-day coding. You will prototype solutions, evaluate new technologies, and establish standards while collaborating with principal engineers and product leadership to deliver scalable, reliable systems.