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Machine Learning Engineer

Saris AI

Saris AI

Software Engineering
San Francisco, CA, USA
Posted on Dec 2, 2025

Location

San Francisco

Employment Type

Full time

Location Type

Hybrid

Department

Engineering

The role

We're a San Francisco & Montreal based applied AI startup that's building the future of work in the banking industry. We are tackling a $100 billion/yr problem, doubling every quarter and pushing the boundaries of what’s possible with multi-turn AI agentic systems.

Our goal is to tackle the type of automation problems that require long-context reasoning, tool orchestration across legacy systems, and strict compliance loops: the ones without known answers.

We’ve shipped real agents that handle real customer workflows in production. With a growing customer base and live deployments, we’re scaling up fast and looking for deeply technical builders who want to have outsized impact early.

Our Engineering team is looking for a founding ML Engineer to take ownership of our entire ML stack and enable custom agents to come to life.

Your mission is to

  • Develop the core ML/AI work at Saris, building custom, multi-modal workflow agents end-to-end

  • Work closely with other engineers on the team to operationalize the core AI agents for production usage

  • Build datasets, define metrics, and track the performance of our AI agents

  • Define core evaluation pipelines to refine our AI agents

  • Build reusable systems and tools that enable contributions from across the company and steadily raise the quality bar

  • Work closely with the founders to help develop the ML/AI vision of the company, and to help drive that roadmap forward

Looking back, you have

  • At least 5 years of ML/AI engineering experience, working as a senior/lead member of the team

  • Extensive experience building, training, and deploying custom ML/AI models that solve complex problems for customers

  • Experience building, training, and deploying LLM models that solve complex problems for customers (ideally conversational AI agents)

  • Extensive knowledge on the inner workings of foundational ML/AI technologies, including deep learning and transformers

  • Experience working collaboratively with other engineers, through code reviews and working sessions

  • Experience working in small teams, moving fast without too much processes/overheads

  • A deep passion for the ML/AI space, and be continually on the lookout for new techniques or architectures

Bonus Points If You

  • Proficient in data processing, including cleaning and preparing data for training

  • Proficient in working with various databases, including SQL and data warehouses

  • Experienced with creating API services that expose ML/AI functionalities to other teams/customers

  • Experienced with building useful technologies based on LLMs, with both closed and open models

  • Experienced in helping the team grow, both in people/processes and in maturity of the technology

  • A great communicator, able to articulate your ideas clearly and succinctly, in both verbal and written form

Why Join Saris AI?

  • 🏦 Join us in building the future of work for the trillion-dollar banking industry using cutting edge AI technology.

  • ⚡Tackle ambiguous technical challenges with no clear answers.

  • 💲Competitive compensation with premium benefits and equity package.

  • 🤝Work with a stellar team of engineers, builders, and leaders; including repeat YC founders with a successful exit (Ready Education).

  • 📈We already have production agents live with revenue-generating customers

  • 🐦 🔥Our team is backed by Tier 1 Silicone Valley VCs