Lead AI Engineer

Ready to be a Titan?In this highly influential position, you will drive the development of our cutting-edge AI Voice Agents and conversational systems. You will act as the primary technical leader for the product, navigating ambiguity and delivering robust, scalable solutions that redefine customer experiences. You will engage with leadership across engineering, infrastructure, data science, and product growth. We build for perfection, use Python and the most modern tools on Azure Cloud, have an amazing culture, and love to solve complex, real-time problems.What you'll do:Contribute significantly to the technical roadmap for the AI Voice Agent system and ensure execution aligns with product and business goals.Serve as the technical lead and subject matter expert for critical projects, actively mentoring and guiding engineers on best practices in AIOps, LLMOps, system design, and implementation excellence.Collaborate with product teams to integrate and operationalize Foundational Models (like LLMs) and specialized speech models into production, focusing on high-volume, low-latency API usage, cost-efficiency, and resilience.Drive execution for complex, cross-functional projects, proactively identifying and resolving technical blockers in infrastructure, deployment, and real-time performance optimization.Communicate effectively with executives, product managers, customers, and partners, translating complex technical challenges into clear implementation plans and strategic recommendations.What you'll bring:8+ years of experience writing production-level code in Python.3+ years of experience designing, deploying, and maintaining high-volume, low-latency production AI/ML systems, specifically Conversational AI models, ASR/TTS engines, or real-time NLP systems.Deep expertise in designing and deploying large-scale, fault-tolerant AI inference services and distributed systems to support real-time voice agents.Strong understanding of the Conversational AI and Machine Learning project lifecycle.Advanced knowledge of Machine Learning methods and algorithms across traditional ML methods and Deep Learning theory and techniques.Expertise in leveraging and orchestrating Foundational Models using tools like LangChain, LangGraph, or equivalent frameworks, including state-of-the-art prompting, agent design, and RAG (Retrieval-Augmented Generation) techniques.Experience with Reinforcement Learning (RL) techniques and implementing Continuous Learning/Online Optimization systems for production.Experience with deep learning frameworks (PyTorch, TensorFlow) and NLP/Speech-focused libraries (e.g., Hugging Face Transformers, DeepSpeech, Kaldi/ESPnet).Expert-level knowledge of data storage and analytics technologies (SQL Server, PostGreSQL, Redshift, Snowflake).Extensive experience with public cloud environments such as Azure or AWS, including security, cost management, and cloud-native architecture.Proven ability to architect solutions using microservices and asynchronous messaging technologies like Kafka, Azure ServiceBus, etc. (critical for high-volume, real-time interactions).Experience with serverless architecture (Azure Functions, AWS Lambda, etc.).Experience with Azure Cognitive Services (Speech/Bot Service) or similar cloud-based AI offerings is a significant plus.Expert command of Git, unit testing, debugging, profiling, and modern SDLC tools.Demonstrated ability to provide technical leadership and operate effectively in a fast-paced environment with a globally distributed team. 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:Flexibility & Autonomous Work: Enjoy the freedom of a fully remote setup, flexible working hours, and flexible time off. We trust you to manage your time and deliver outstanding results while maintaining a healthy work-life balance, which is a core part of our culture. Growth & Development: We invest in your growth. Benefit from a comprehensive onboarding program, leadership training for Titans at all levels, and ample learning and development opportunities to help you grow. Ownership & Recognition: As a Titan, you’re an owner. We offer a compelling package that includes an annual bonus and Restricted Stock Units (RSUs). Great work is also rewarded through Bonusly, peer-nominated awards, and more.Holistic Health & Wellness: Your well-being is our priority. We offer premium, company-paid private health insurance.Support for Titans at All Stages of Life: We offer comprehensive support including parental leave, financial planning tools, Employee Assistance Program services, and more. At ServiceTitan, we celebrate individuality and uniqueness. We believe that the convergence of fresh perspectives and experiences from all walks of life is what makes our product and culture so great. We welcome applications from all qualified candidates. We do not discriminate against employees based on race, color, religion, sex, national origin, gender identity or expression, age, disability, pregnancy (including childbirth, breastfeeding, or related medical condition), genetic information, protected military or veteran status, sexual orientation, or any other characteristic protected by applicable federal, state or local laws.About ServiceTitanServiceTitan is the world’s leading software provider for the trades. We are on a mission to champion the hardworking men and women of the trades by providing them with the extraordinary technology, support, and innovation they deserve. From the plumbers and electricians to the HVAC technicians and painters, these are the people who build and maintain our physical world; a critical, hands-on role that technology can empower, but not replace, and we’re proud to serve them.Founded by children of tradespeople, we understand the challenges our customers face. That’s why we’ve built a powerful, all-in-one platform that helps over 12,000 companies manage and grow their businesses. Today, we are a global team of over 3000 Titans. In December 2024, ServiceTitan celebrated a major milestone by becoming a publicly traded company on the NASDAQ under the ticker TTAN.Now, we're building our first foundational engineering team in Poland, and you will play a pivotal role in shaping our future. This is more than just a job; it’s a chance to build, innovate, and create from the ground up as we establish our European engineering hub. If you’re ready to solve complex challenges and build software that makes a real-world impact, we want you on our team.