# Senior Machine Learning Operations Engineer

**Company:** [Mercury](https://hotfix.jobs/companies/mercury)
**Location:** Remote
**Role:** ML Engineering
**Salary:** $157k – $208k/yr
**Experience:** 5+ years
**Skills:** Machine Learning, MLOps, Python, FastAPI, Flask, Model Registries, CI/CD, Shap, SQL, Redis, DynamoDB, Kafka, Snowflake, Airflow, TypeScript
**Posted:** 2026-09-09

> Build and operate the platform that deploys, serves, observes, and retrains production machine-learning models for real-time fraud and financial-crime risk decisions. Requires 5+ years of ML engineering, backend, or MLOps experience, strong Python skills, and production model-serving expertise.

## Job Description

## Responsibilities
- Build and operate real-time inference services that score models for risk decision engines, prioritizing low latency and high availability.
- Own model deployment infrastructure, including registries, versioning, model CI/CD, performance, bias and consistency checks, shadow mode, and staged rollouts.
- Build production model observability for availability, latency, errors, and drift detection that can trigger retraining.
- Partner with Risk Data Science to move models from development into production and operate them through the Machine Learning Platform.
- Implement experimentation capabilities such as champion/challenger and canary routing, as well as explainability outputs such as SHAP attributions.
- Help shape and build a new machine learning platform team with strong product ownership.

## Requirements
- 5+ years of experience in machine learning engineering, backend software engineering, MLOps, or a closely related field.
- Experience deploying, serving, and operating production ML models in low-latency, highly available environments.
- Strong backend engineering fundamentals in Python, with experience using API frameworks such as FastAPI or Flask.
- Experience with model deployment and lifecycle tooling, including model registries, model CI/CD, versioning, and staged rollout patterns.
- Experience building observability and alerting for production services, including latency and error monitoring; model-specific signals such as drift are preferred.
- Familiarity with SQL, key-value or low-latency data stores, and streaming pipelines.

## Nice to Have
- Familiarity with Snowflake, dbt, Dagster, Airflow, or similar modern data-stack tools.
- Experience in regulated, audit-sensitive, or compliance-adjacent environments.
- Exposure to functional languages or willingness to work with Haskell, React, and TypeScript.

## Compensation
- US employees: $166,600–$208,300 USD base salary.
- Canadian employees: $157,400–$196,800 CAD base salary.
- Total rewards include base salary, equity, and benefits.

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**Apply:** https://hotfix.jobs/jobs/102dd624-6c60-41dd-823e-299c080f8b33
**Canonical:** https://hotfix.jobs/jobs/102dd624-6c60-41dd-823e-299c080f8b33