Principal Software Engineer, Infrastructure

Ready to be a Titan?
We’re looking for someone to lead all technical aspects of an engineering team at ServiceTitan. You must have a strong background in responsive web application development, building distributed systems for scale, and a proven ability to deliver technical leadership and strong process management.
We make a huge impact on thousands of companies in the U.S. and abroad by enabling them to be more efficient and effective at running their business. Many of the features we offer — in particular, Machine Learning and AI-driven scheduling and dispatch automation — are light-years ahead of what currently exists on the market, and we love to hold this position. We are quality minded, use the most modern tools on .NET platform, have an amazing culture, love to solve complex problems, and embrace learning, exploration and growth.. If you share the same values, we’d like to talk to you!

What you'll do: 

• Design & Evolution: Lead the design, implementation, and continuous improvement of critical systems powering the ServiceTitan platform. Drive enhancements in security, availability, reliability, and performance, and contribute to key architectural and strategic decisions, particularly those related to scale.

• Strategic Initiatives: Actively contribute to research, development, support, and cross-company initiatives, designing solutions that address both current and future business needs and infrastructure plans.

• Release Collaboration: Partner closely with Product Engineering teams to plan and execute seamless product releases.

• Platform & Infrastructure: Work with Engineering leadership to build and scale infrastructure and shared services that support platform and application requirements.

• Non-Functional Excellence: Define and embed non-functional requirements (NFRs) throughout the product lifecycle, influencing designs, standards, and best practices for highly scalable, distributed systems.

• Leadership Alignment: Build strong relationships with company leadership to ensure effective adoption and alignment of technology strategies.

• Data Platform Oversight: Oversee performance, scalability, and availability across key data systems including Azure SQL, PostgreSQL, MySQL, Cosmos DB, MongoDB, Redis, and Kafka.

• Optimization & Reliability: Drive improvements in query performance, system optimization, capacity planning, high availability/disaster recovery (HA/DR), and replication strategies.

• Empowerment & Mentorship: Mentor and guide engineers across the organization, fostering technical excellence and a strong engineering culture.

• Execution Balance: Maintain a strong hands-on approach with approximately 60% focus on development and 40% on strategy, operations, and cross-functional initiatives.

• Team Building: Partner closely with Recruiting to help build high-performing teams—participating in candidate interviews and co-owning activities related to talent pipeline development, including tech talks, lead generation, and screening processes (e.g., HackerRank).

What you'll need:

• 15+ years of industry experience, including with large scale enterprise web/SaaS applications, SRE, or infrastructure roles

• B.S., M.S. or PhD in Computer Science, Physics, Engineering or a related technical field.

Expert-level knowledge of:

• Microsoft .NET ecosystem, including C#, .NET, ASP.NET MVC, and Web APIs

• Relational database systems (Microsoft SQL Server, Azure SQL, PostgreSQL, MySQL) with strong performance and scalability expertise

• Observability and performance engineering, including metrics, logging, and distributed tracing

• Cloud-native architectures and platforms, with deep hands-on experience in Azure (preferred) and familiarity with AWS

• Kubernetes, serverless computing (Functions), and distributed systems design

• Distributed messaging and data platforms such as Kafka, Event Hubs, SQS, and modern data lakehouse architectures (e.g., Snowflake, Databricks Delta)

• NoSQL technologies including Cosmos DB, MongoDB, and Redis

• API gateways and large-scale service orchestration

• Infrastructure automation and provisioning at scale using scripting and cloud-native tools

• CI/CD pipelines, reliability practices, and version control systems (e.g., Git)

• Troubleshooting and optimizing distributed web applications in production environments

• Programming expertise in one or more languages such as C#, PowerShell, Java (additional languages a plus)

• Famili