# Machine Learning Engineer I - Message Security Products

**Company**: Abnormal AI
**Location**: Singapore
**Work arrangement**: remote
**Experience**: entry
**Job type**: full-time
**Category**: Engineering
**Industry**: Technology

**Apply**: https://job-boards.greenhouse.io/abnormalsecurity/jobs/7816935003?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_be7f28ac-5f1

## Description

Abnormal AI is seeking a Machine Learning Engineer - I (MLE) to join the Misdirected Email Detection (MED) team. The MED team plays a critical role in preventing accidental data loss by detecting and blocking misdirected outbound emails.

This is a highly applied role for MLEs who thrive on building, iterating, and experimenting. Rather than focusing solely on model training, you will also be responsible for developing practical, end-to-end ML solutions. This includes but is not limited to generating and refining features, testing hypotheses, averaging signals, and translating research ideas into production-grade systems, all while collaborating cross-functionally to turn customer needs into measurable product improvements.

**Responsibilities**

- Partner with Product Manager, Tech Lead and engineering stakeholders to align technical deliverables to roadmap milestones and ensure successful GA launches across supported environments.

- Own the full ML lifecycle for Misdirected Email, including data wrangling, feature engineering, model training and evaluation, deployment, and monitoring. Deliver iterative improvements with measurable reliability and customer impact.

- Run rigorous experiments and evaluations (offline metrics, online A/B testing, post-launch monitoring), set thresholds, and conduct targeted error analysis to prevent regressions.

- Communicate effectively across time zones, maintain high-quality technical documentation, and contribute to shared team knowledge.

- Participate in shared on-call rotation for owned components, with responsibilities focused on detection efficacy and realtime scoring systems. Priorities include resolving efficacy-related alerts, investigating high-visibility false positives, and addressing reported false positives/false negatives from customers or internal teams.

**Requirements**

- BS degree in Computer Science, Machine Learning, Artificial Intelligence, Information Systems, or a related engineering or quantitative field.

- 1+ years building and operating applied ML features in production systems.

- Proven experience contributing to end-to-end ML systems, including data wrangling (text and structured), feature engineering, model selection, training, evaluation, and production deployment with monitoring.

- Demonstrated ability to implement and reason about algorithms, develop features, average and combine signals, and apply numerical computing effectively.

- Demonstrated ability to interrogate production data, identify behavioral or trend shifts, and launch targeted experiments to improve model efficacy.

- Understanding of online vs offline pipelines, data tables and labeling workflows to effectively leverage tooling to support safe, scalable model deployments.

- Experience running offline metrics, online A/B tests, setting thresholds, and monitoring drift and performance, with guardrails and rollback strategies to ensure reliable iteration.

- Strong written and asynchronous communication skills. Effective working independently and across distributed, cross-functional teams.

**Nice to Have**

- Experience with our stack: Python, Go, AWS, Spark, Databricks

- Experience in email security/DLP or misdirected email prevention domains and customer-focused ML deployments.

- Experience writing detectors/rules to complement ML models for safe launches and rapid iteration.

- Experience with operationalising research into reliable, customer-facing systems, with emphasis on scalability, performance, and detection accuracy in real-world environments.

- Prior experience contributing to a small team or project to deliver a feature or component from scratch.

## Skills

### Required
- Machine Learning
- Python
- Go
- AWS
- Spark
- Databricks
- Computer Science
- Artificial Intelligence
- Information Systems

### Nice to have
- email security
- DLP
- misdirected email prevention
- customer-focused ML deployments

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Source: [Apply at job-boards.greenhouse.io](https://job-boards.greenhouse.io/abnormalsecurity/jobs/7816935003?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)