# Machine Learning Engineer

**Company:** [Sardine](https://hotfix.jobs/companies/sardine)
**Location:** Remote
**Role:** ML Engineering
**Salary:** $170k – $250k/yr
**Experience:** 5+ years
**Skills:** Go, Python, PyTorch, scikit-learn, SQL, Docker, Kubernetes, CI/CD, LLMs
**Posted:** 2025-09-09

> Designs and builds ML systems for real-time fraud detection, including data pipelines, model deployment, and backend services in Go/Python. Requires 5+ years software engineering with applied ML experience on large datasets.

## Job Description

## What you’ll be doing
- Build and optimize data pipelines and backend services to process device and behavioral data in real time.
- Develop and deploy ML models for fraud detection, ensuring they run reliably and efficiently in production.
- Turn raw data into production-ready features that feed our fraud detection systems.
- Collaborate with platform and backend engineers to integrate models seamlessly.
- Maintain high standards of security, privacy, and compliance.
- Champion best practices in testing, documentation, and observability.

## What you’ll need
- 5+ years in software engineering, with strong backend experience (**Go** or **Python**).
- Hands-on experience with applied ML using large datasets (**PyTorch**, **Scikit-learn**, etc.).
- Strong **SQL** skills and familiarity with relational and non-relational databases.
- Experience with end-to-end ML systems: feature pipelines, model deployment, monitoring, and iteration.
- Excellent communication skills in English, both written and verbal.
- Bachelor's or Master's in Computer Science, Engineering, or a related discipline.

## Bonus Points
- Domain knowledge in fraud, risk, or cybersecurity.
- Familiarity with **CI/CD**, **Docker**, **Kubernetes** and the modern devops framework.
- Understanding of modern browser APIs and high-entropy data collection techniques.
- Familiarity with leveraging frontier **LLMs** for automation.

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**Apply:** https://hotfix.jobs/jobs/785cccc3-91cf-43ba-b228-1e290276caec
**Canonical:** https://hotfix.jobs/jobs/785cccc3-91cf-43ba-b228-1e290276caec