Senior AI Engineer – Agent OS Platform

🕒 May 19

🏄 California – Remote

🏄 California – Remote

💵 $168.2k - $224.9k / year

⏰ Full Time

🟠 Senior

🤖 AI Engineer

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ServiceTitan

WebsiteLinkedInAll Job Openings

1001 - 5000 employees

Founded 2012

☁️ SaaS

🤝 B2B

🏪 Marketplace

💰 $200M Series G on 2021-06

SaaS • B2B • Marketplace

ServiceTitan is a comprehensive software platform designed for the trades industry, providing solutions to enhance productivity and profitability for businesses. It offers a variety of features including dispatching, scheduling, marketing, reporting, and customer experience tools, tailored for trades like plumbing, HVAC, electrical services, and more. ServiceTitan seeks to empower businesses by optimizing operations, improving cash flow, and delivering superior customer experiences through an all-in-one platform. The software includes real-time data analytics, financing options, and mobile capabilities to support the operational needs of contractors and increase their revenue streams. By consolidating multiple business functions into a single platform, ServiceTitan aims to help contractors grow profitably and efficiently.

📋 Description

• Design and implement core Agent OS platform services. • Write production code and review implementation details from other engineers. • Build reliable APIs, workflows, tools, and services for agent execution. • Inspect traces, debug failures, and improve production behavior. • Design evaluation scenarios and regression suites for agent workflows. • Work through real agent failure modes: stale context, wrong tool calls, missing permissions, unsafe actions, poor retrieval, latency spikes, and cost regressions. • Partner with domain teams to turn agent use cases into reusable platform patterns. • Help define platform contracts for tools, actions, approvals, context, memory, evidence, and evaluation. • Contribute to technical direction while staying grounded in what can ship quickly and safely. • Communicate clearly with engineers, product managers, architects, security partners, and engineering leadership.

🎯 Requirements

• 5+ years of production software engineering experience. • Strong hands-on coding ability in Python, Java, C#, or another backend language. Python experience is strongly preferred. • Experience building AI, ML, data, platform, infrastructure, workflow, automation, or developer-platform systems in production. • Practical understanding of modern LLM application architecture: model gateways, prompt and context assembly, retrieval, tool calling, structured outputs, memory, agent workflows, and human approval patterns. • Experience with distributed systems, event-driven systems, async workflows, queues, durable execution, or message-driven architectures. • Strong production-safety instincts for non-deterministic systems: typed contracts, scoped permissions, precondition checks, idempotency, audit trails, rollback, and monitoring. • Experience designing or operating evaluation systems: behavioral evals, regression suites, scenario tests, trajectory review, simulation, online metrics, or production monitoring. • Strong data and context instincts: SQL, unstructured data, vector search, metadata, provenance, freshness, source authority, and privacy boundaries. • Experience with databases, warehouses, or search systems such as PostgreSQL, SQL Server, Snowflake, BigQuery, Elasticsearch, or vector stores. • Experience building services on public cloud infrastructure such as Azure, AWS, or GCP.

🏖️ Benefits

• Flexible time off with ample learning and development opportunities to continue growing your career. • Comprehensive onboarding program. • Leadership training for Titans at all levels. • Bonusly and peer-nominated awards for great work. • Company-paid medical, dental, and vision (with 100% employer paid options and 90% coverage for dependents). • FSA and HSA plans. • 401k match. • Telehealth options including memberships to One Medical. • 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.