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Sequen AI

Enterprise behavior design and ranking platform

Staff MLOps Engineer - Machine Learning Platform

Full-Time
$220k - $280k+ Performance Bonus + Equity
Mid, Senior
Remote in USA
Remote
AI & Machine LearningApplied Machine Learning

About the job

Requirements
  • Bring 4–8+ years of practical experience in MLOps, machine learning engineering, or distributed platform/infrastructure engineering.
  • Demonstrate hands-on experience deploying and serving ultra-low-latency machine learning models under heavy, real-time concurrent workloads.
  • Maintain deep, production-grade proficiency with Python and PyTorch.
  • Operate comfortably across major cloud platforms (AWS, GCP, or Azure) utilizing modern containerization and orchestration tooling (Docker, Kubernetes).
  • Show experience designing robust, scalable data pipelines, model registries (e.g., MLflow), and automated CI/CD infrastructures.
  • Bring a solid, first-principles understanding of the complete machine learning lifecycle, asynchronous event-driven patterns, and distributed systems.
  • Balance algorithmic complexity with microsecond runtime latency constraints, choosing mathematical models suited to scaling constraints and prioritizing real-world stability and performance.
  • Take ownership of production stability and platform efficiency, building robust automated pipelines that require zero manual intervention.
  • Design, deploy, and validate infrastructure prototypes quickly without accumulating debilitating technical debt.
  • Build clean developer interfaces, automated workflows, and diagnostic tools that help research scientists work more efficiently.
Responsibilities
  • Design, operate, and maintain systems for low-latency model deployment, distributed inference pipelines, and automated real-time telemetry.
  • Move models from experimentation to production, optimizing execution latency, GPU/CPU throughput, and cloud infrastructure costs.
  • Build infrastructure for automated model versioning, canary releases, hot-swappable container rollouts, and zero-downtime rollbacks.
  • Architect and monitor real-time pipelines to track model performance, data distribution drift, and system reliability anomalies.
  • Engineer evaluation pipelines and feedback loops to validate live inference accuracy and prevent training-serving skew.
  • Identify and eliminate performance bottlenecks across serving layers, improving core tooling, model warm-up times, and researcher velocity.
  • Partner with internal machine learning researchers and backend engineers to translate experimental model breakthroughs into resilient, production-grade serving topologies.
Desired Qualifications
  • Bring production experience or active hands-on familiarity with Rust for low-overhead systems engineering.
  • Have exposure to serving and optimizing large language models (LLMs) or large-scale generative model architectures such as vLLM and Triton.
  • Have familiarity with enterprise-grade feature stores, advanced experiment tracking, and systematic model evaluation frameworks.
  • Have prior experience building and scaling software infrastructure from scratch in fast-moving, early-stage, or hypergrowth startups.

About the company

Sequen AI provides a behavior design and ranking platform for enterprise apps. Its Large Event Model predicts the next user action from billions of event sequences to enable in-session personalization, search, and recommendations via a sub-20ms API. It uses reinforcement learning to optimize outcomes like conversion and revenue, shaping experiences rather than just observing behavior. The platform targets enterprise customers and heavy usage, offering an AI-native solution that integrates with existing systems to drive revenue through more relevant experiences.

Company Size

11-50

Company Stage

Series B

Total Funding

$112M

Headquarters

New York

Founded

2024

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Simplify's Take

What believers are saying

  • TechCrunch reported Fetch Rewards saw a 20% net-revenue lift in 11 days.
  • Sequen handled 10 billion monthly requests by March 2026, showing real scale.
  • The company hired aggressively in September 2026, listing 14 open roles.

What critics are saying

  • June 2026 trade-secret litigation with Fetch Rewards threatens customer trust and sales.
  • Competitors from Google, Meta, and Amazon already own similar ranking stacks.
  • If conversion lifts fade, Sequen loses its revenue pitch and valuation support.

What makes Sequen AI unique

  • Sequen's LEMs predict next user events, not just next words, since 2024.
  • March 2026 Series A by White Star and Threshold validated enterprise demand.
  • Its sub-20-millisecond API turns ranking into revenue for Fortune 500 consumer apps.

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Benefits

Health Insurance

Unlimited Paid Time Off

Remote Work Options

Company Equity

Growth & Insights and Company News

Headcount

6 month growth

-19%

1 year growth

-10%

2 year growth

-10%
Axios
Sep 10th, 2026
Sequen raises $90M at $1.44B valuation for real-time ranking platform

Sequen, a real-time ranking and relevance platform, has raised $90 million in Series B funding led by Prysm Capital, valuing the company at $1.44 billion. CEO Zoe Weil announced the news. The platform uses AI tools to convert real-time customer behaviour into revenue. The company's quick return to the funding market demonstrates strong investor interest in this technology. The funding will support Sequen's continued development of its ranking and relevance platform, which helps businesses optimise their services based on real-time customer data.

FinSMEs
Mar 17th, 2026
Sequen Raises $16M in Series A Funding

Sequen, a NYC-based company that provides large-scale event models (LEMs) and offers continuous learning on dynamic user embeddings in inference, raised $16M in Series A funding