Principal Machine Learning Engineer, Vision AI
Toast, Inc.Base Salary
$180k - $368k/yr
Responsibilities
- Architect and build video capture, ingestion, storage, processing, and delivery infrastructure for the Vision AI platform.
- Build services that process video, run vision models, and generate actionable observations and metrics.
- Select and integrate vision and vision-language models and develop production inference, evaluation, and monitoring systems.
- Deliver vision-powered customer-facing features across Toast products and surfaces.
- Set technical direction and make architecture decisions for the Vision AI platform.
- Write production code, prototype ideas, and ship solutions in a highly hands-on role.
- Collaborate with engineering, product, and other organizational teams on integrations and dependencies.
- Use AI coding tools and agent harnesses in design, development, testing, and delivery workflows.
- Mentor engineers and raise standards for reliability, security, privacy, and platform usability.
Requirements
- 10+ years of software engineering experience, including designing and shipping distributed systems and production data pipelines at scale.
- Strong backend and cloud infrastructure experience, with AWS preferred, event-driven systems, storage, and APIs.
- Experience with Kotlin, Java, or similar languages, plus comfort with Python.
- Experience building and operating production ML systems, including inference pipelines, model evaluation, and model monitoring.
- Understanding of model training, tuning, and serving, along with experience working with video streams, codecs, and tools such as ffmpeg.
- Experience taking ambiguous ideas from prototype to production for real customers and writing significant production code.
- Daily experience with AI coding assistants and agent harnesses such as Claude Code and Cursor.
- Experience building with LLM or vision-language model APIs.
- Ability to align engineers, product partners, and other organizations around technical decisions and communicate tradeoffs clearly.
- Preferred experience with computer vision, video analytics, camera-based products, real-time video pipelines, connected device fleets, privacy-sensitive systems, or restaurant, retail, hospitality, drive-thru, or other operationally complex environments.
Benefits
- Competitive base salary and total rewards package including cash compensation, equity, and benefits.
- Benefits intended to support a healthy lifestyle and changing employee needs.
- The posting is marked remote, while Toast describes a hybrid work model with regional in-office expectations.
- Accessible and inclusive hiring process with reasonable accommodations available.
Tech Stack
Categories
About Toast, Inc.
Bottom Line – Solving business problems and generating positive growth is our jam! We are focused on helping purpose-driven brands make a positive impact with predictable Inbound Growth Programs. As a small business, we get it. Growing pains are genuine for many companies in today’s evolving digital landscape. Standing apart from your competition, connecting with your customers, predictably hitting your goals, and scaling are becoming more challenging as local and global markets expand. But it's not impossible. Digging into the unique challenges your business encounters, we analyze every detail and identify opportunities to grow. Our conversational framework is based on data, mixed with beautiful design, story-telling, and smothered in personality to craft marketing and sales strategies that make it all happen. Do you want to transform your company into a crave-worthy brand that new and existing customers will love and promote? Let's Get Cookin'!