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Lago

Open-source API-first metering and billing platform

Senior AI/ML Engineer - Inventory Forecasting & Decision Systems

Applied Machine LearningConfirmed live in the last 24 hours
Full-timeRemote in Philippines$20 - $40 /hr

About the Job

Requirements

  • At least 5 years of Python experience in production machine-learning systems, beyond notebooks or research.
  • Deep experience with statistical modeling, including ensemble methods, k-nearest neighbors, calibration, cross-validation, and feature engineering.
  • Expertise in time-series modeling and forecasting, including seasonality, trend decomposition, safety stock, and demand planning.
  • A proven track record of shipping machine-learning models that drive business decisions in forecasting, pricing, or demand planning.
  • Strong ability to work with messy real-world data, including bias correction, stale-signal handling, error cancellation, and distribution shifts.
  • Experience with API integration and data-pipeline architecture at scale.
  • Hands-on experience with large language model and AI-agent workflows, including prompt engineering and evaluation frameworks.
  • Ability to validate models rigorously using leave-one-out validation, backtesting, and comparisons of production versus offline metric gaps.
  • Ability to work independently in a fast-evolving small-team environment.

Responsibilities

  • Build and improve inventory demand-forecasting models using machine-learning and statistical methods.
  • Own machine-learning models end to end, from data collection and feature engineering through training, deployment, monitoring, and iteration.
  • Develop decision systems that support inventory planning, pricing, and demand decisions.
  • Build and maintain data pipelines and API integrations for external and internal data sources.
  • Work with messy real-world data and ensure model reliability through rigorous validation and testing.
  • Implement large language model and AI-agent workflows to translate domain logic into automated processes.
  • Operate independently in a small team, set priorities, unblock challenges, and communicate tradeoffs.

Desired Qualifications

  • Experience in Amazon marketplace, e-commerce, or retail analytics.
  • Familiarity with similarity-based methods, including k-nearest neighbors, embeddings, and vector search.
  • Experience maintaining long-lived model systems through many iteration cycles.
  • Prior startup or founder-adjacent experience.

About the Company

Lago

Open-source API-first metering and billing platform

Lago provides an open-source, API-first platform for metering and usage-based billing designed for complex pricing models. It processes high-volume event data to handle real-time metering, subscription management, entitlements, credits, invoicing, and revenue analytics, and integrates with Stripe, CRMs, and ERPs; it is the central billing logic, not a payment processor. Lago differentiates itself with an open-core model (free AGPLv3 self-hosted) plus paid cloud and premium self-hosted deployments, offering transparency and control to reduce vendor lock-in. Its goal is to help AI, SaaS, and API-first businesses monetize complex pricing at scale with a flexible, scalable billing infrastructure.

Company size
11-50
Company stage
Not listed
Total funding
Not listed
Headquarters
Not listed
Founded
2024

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