Senior Staff Software Engineer

Ready to be a Titan?
ServiceTitan is looking for a Senior Staff Software Engineer to help us build the combination of front end web application, middle tier and services. This is an exciting role for an engineer to come in and develop the major application features in a rapidly growing, fast-paced environment. We build for product excellence, focus on smart solutions through innovation and technology, have an amazing growth-oriented culture, and love to solve complex problems. If you share the same values, you should consider joining us in our efforts to achieve the extraordinary!You will be driving the architecture and AI integration for ServiceTitan’s CRM platform—blending system design, machine intelligence, and user-facing automation to redefine how the trades sell, engage, and grow. We need a highly technical, forward-looking, leader who will own the technical vision of a squad and be accountable for the successful execution of that vision. We also desire those who can balance rapid iteration and development with high product quality expectations and who are innovative and comfortable with ambiguity.What you'll do:

• Architect and own large, distributed systems that power ServiceTitan’s next-generation CRM.
• Define and evolve the long-term technical vision across multiple squads—spanning core CRM, leads, and contact management domains.
• Design scalable frameworks, APIs, and data models that enable agentic automation, LLM-driven insights, and recommendation services.
• Lead integration of AI components such as Agentic Frameworks, LLMs, MCP, Recommendation Engines, and Sidebar Agentic Bots into production workflows.
• Collaborate cross-functionally with Product, AI/ML, and Data teams to translate complex user needs into reliable, intelligent solutions.
• Mentor engineers through architectural design, code reviews, and deep technical coaching.
• Establish best practices in observability, reliability, and developer productivity across squads.
• Communicate technical direction clearly through design docs, reviews, and leadership syncs.

What you'll bring:

• 10+ years of experience building scalable SaaS or enterprise systems.
• Expert in C# / .NET Core, ASP.NET, and SQL Server; strong grounding in distributed system design.
• Hands-on experience implementing or integrating AI/LLM-based applications in production (LangChain, Hugging Face, OpenAI, etc.).
• Familiarity with agentic architectures, reasoning models, and orchestration layers (e.g., MCP-style systems, RAG pipelines, or multi-agent frameworks).
• Strong proficiency in Python for AI/ML workflows and data pipelines.
• Experience with React + TypeScript, Kafka, and Kubernetes in large-scale environments.
• Proven ability to lead architecture across multiple squads and mentor Staff/Senior Engineers.
• Excellent collaboration and communication skills with technical and product stakeholders.

Tech Stack:
Our applications are primary built on C#, React, TypeScript, SQL Server, Kafka, Kubernetes

Be Human With Us:

Being human isn’t about checking every box on a list. It’s about the experiences we have, people we meet, and the perspectives we share. So, if you have the skills but are hesitant to apply because of your background, apply anyway. We need amazing people like you to help us challenge the conventional and think differently about the problems that we’re solving. We’re in this together. Come be human, with us. 

What We Offer:
When you join our team, you’re not just accepting a job. You’re making a career move. Here’s how we’ll support you in doing some of the most impactful work of your career:

• Flextime, recognition, and support for autonomous work: Flexible time off with ample learning and development opportunities to continue growing your career. We offer a comprehensive onboarding program, leadership training for Titans at all levels, and other programs and events. Great work is rewarded through Bonusly, peer-nominated awards, and more.

• Holistic health and wellness benefits: Company-paid medical, dental, and vision (with 100% employer paid options and 90% coverage for dependents), FSA and HSA, 401k match, and telehealth options including memberships to One Medical.

• Support for Titans at all stages of life: Parental leave and support, up to $20k in fertility services (i.e. IUI and IVF), surrogacy, and adoption reimbursement, on demand maternity support through Maven Maternity, free breast milk shipping through Maven Milk, pet insurance, legal advisory services, financial planning tools, and more.

At Servi