# Sr./Staff Machine Learning Engineer

**Company:** [Oscilar](https://hotfix.jobs/companies/oscilar)
**Location:** Remote
**Role:** ML Engineering
**Experience:** 4+ years
**Skills:** Python, Scala, Spark, Flink, AWS, Ml Pipelines, Feature Stores, Model Serving, Distributed Systems
**Posted:** 2026-05-07

> Builds, deploys, and maintains scalable ML infrastructure including pipelines, feature stores, and model serving for real-time fintech risk decisions. Requires 4+ years production ML experience with Python, Scala, Spark, Flink, and AWS.

## Job Description

## Responsibilities
- Scale and optimize existing ML systems, including feature stores, model serving, and orchestration pipelines.
- Build reproducible, automated ML pipelines for model training, deployment, and monitoring.
- Partner with data scientists to enable low-latency production deployment.
- Design and implement new components of the ML stack for scalability, modularity, and developer experience.
- Set ML engineering standards, best practices for model deployment, monitoring, and lifecycle management; mentor teammates.
- Own production reliability for ML systems serving real-time decisions.

## Requirements
**Required:**
- 4+ years building and maintaining production ML infrastructure.
- Strong software engineering fundamentals; experience designing distributed systems and writing high-quality code.
- Hands-on with full ML lifecycle: feature engineering/serving, model deployment, monitoring, retraining.
- Proficiency in **Scala** and **Python**; experience with **Spark** and **Flink**.
- Experience operating systems at scale: performance tuning, observability, incident response.
- Strong communication and collaboration skills.
- Significant experience with **AWS**.

**Strongly Preferred:**
- Building ML infrastructure for fintech applications.
- Scaling ML systems through growth in traffic, models, or features.

**Nice to Have:**
- Prior ML engineer experience at a startup.

## Compensation & Benefits
- Competitive salary and equity packages, including 401k.
- 100% employer-covered health, dental, vision insurance.
- Unlimited PTO.
- Remote-first culture.

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**Apply:** https://hotfix.jobs/jobs/ef7a1d14-a523-435d-95e8-355d6cad40c1
**Canonical:** https://hotfix.jobs/jobs/ef7a1d14-a523-435d-95e8-355d6cad40c1