[Hiring] Principal Engineer @ServiceTitan

Role Description

We're looking for a seasoned technical leader who brings deep expertise, broad systems thinking, and the hands-on drive to take complex ideas from design through delivery. You'll work at the intersection of architecture and execution - shaping the technical direction of company-wide initiatives while staying close enough to the code to make them real.

We power thousands of home and commercial service businesses across the U.S. and beyond, helping them operate more efficiently through a platform that includes ML and AI-driven scheduling, dispatch automation, and real-time operational workflows.

What You'll Do:

• Own & Deliver: Define the technical vision for your domain, plan 18+ months ahead, and see it through - writing code, leading implementation, and taking end-to-end accountability for quality and outcomes.
• Design & Build: Produce complete, production-ready system designs and then help build them. You write code and lead others in writing high-quality code. You drive and participate in major architectural decisions relating to scale, reliability, and security.
• Set the Standard: Be the reference point for engineering excellence. Your implementations, code reviews, and technical decisions serve as the model others learn from. You conduct architecture reviews, identify systemic risks, and introduce improvements.
• Discover & Generalize: Proactively identify opportunities to extract shared systems, define reusable patterns, and establish approaches that eliminate duplication and inconsistency across teams.
• Empower: Coach and mentor Staff and Senior engineers in technical design, architecture, and systems thinking. Create opportunities for others to grow and run cross-team knowledge-sharing sessions.
• Shape Strategy: Partner with engineering leadership on roadmap and resource planning across company-wide initiatives. Advocate for non-functional requirements and align technical direction with business priorities.
• Recruit & Grow the Team: Assess candidates for senior technical roles, design interview plans, and make hiring recommendations.

Qualifications

• 15+ years of industry experience in large-scale enterprise web or SaaS applications, with 7+ years in senior IC roles.
• A proven track record of designing and shipping large-scale distributed systems.
• Deep expertise in at least one primary technology stack (e.g. C#/.NET, Java, C++ or equivalent).
• Strong command of distributed systems fundamentals: event-driven architecture, asynchronous programming, concurrency, fault tolerance, and performance tuning.
• Hands-on experience with cloud infrastructure (Azure, AWS, or GCP).
• Solid grounding in data architecture: relational, NoSQL, vector databases, and distributed persistence.
• Familiarity with AI/ML systems and LLM-based architectures.
• Experience leading monolith-to-microservices or service-oriented migrations.
• Strong command of modern engineering practices: Git, CI/CD, containerization (Docker), RESTful services, and observability tooling.
• B.S., M.S., or PhD in Computer Science, Engineering, or a related technical field.

Requirements

• A bias for execution: comfortable at the architecture whiteboard and in the codebase.
• The communication skill to make complex technical decisions legible to any audience.
• A coaching mindset: invest in the engineers around you.
• Breadth across the engineering landscape with deep mastery in at least one area.
• A habit of identifying risks, dependencies, and improvement opportunities.
• Strong empathy for end users and grounding technical decisions in real customer impact.

Benefits

• Flextime, recognition, and support for autonomous work.
• Flexible time off with ample learning and development opportunities.
• Company-paid medical, dental, and vision benefits.
• Parental leave and support, fertility services, and adoption reimbursement.
• Legal advisory services, financial planning tools, and more.