Senior Machine Learning Engineer

Описание вакансии

Senior Machine Learning Engineer

Локация: Удалённо

Компания: Wallarm

ЗП: обсуждается на собеседовании

Занятость: Полная

Since 2016, Wallarm has been on a mission to secure the internet's critical infrastructure: APIs.

We're building ML-powered detection systems that protect APIs from automated abuse credential stuffing, scraping, enumeration, and attack patterns that evolve daily. This is a greenfield effort: we have the data and the ideas, but the ML infrastructure, pipelines, and models need to be built from scratch.

You'll be the first dedicated ML engineer on the team, working closely with engineers, security researchers and DevOps. This is a senior IC role with a clear path to technical leadership - we plan to grow the ML function around this hire.

What You'll Do:

• Build the ML stack from the ground up - Design and implement the data pipelines, feature extraction, model training, and serving infrastructure needed for production-grade anomaly detection.
• Detecting anomalies in API traffic - Your first major outcome: build a system that identifies malicious behavioral patterns across client sessions with high precision and recall, trained per-client.
• Own the full lifecycle - From raw data exploration and feature engineering through model development, evaluation, deployment, and continuous monitoring. No handoffs to a separate "productionization" team.
• Design experiments and metrics - Build offline evaluations, define detection-quality metrics, and monitor for false positives, drift, and adversarial adaptation.
• Work with text and structured behavioral data - Extract signals from API sessions, request sequences, payloads, and traffic metadata using NLP and statistical techniques.
• Leverage LLMs where they add value - Explore embedding-based models and LLM-augmented approaches for signal enrichment, classification, and explainability.
• Shape the technical direction - Document findings, present to cross-functional teams, and help define the ML roadmap as the team grows.

Job requirements:

• 5+ years in Applied ML or ML Engineering with production deployment experience (not research-only backgrounds).
• Strong NLP / text data experience - hands-on work with text classification, pattern extraction, tokenization, embeddings, or similar. This is the core of the work.
• Proficiency in Python and production-grade systems (APIs, data pipelines, model serving).
• Solid data engineering skills - experience building ETL/data pipelines, working with batch and streaming data, and understanding the full ML data lifecycle (DAGs, data versioning, feature stores).
• Deep hands-on experience across ML fundamentals: classification, anomaly detection, clustering, statistical methods - and the judgment to choose the right approach for a given problem.
• Comfort with imperfect data - noisy labels, class imbalance, evolving distributions - and practical strategies for labeling, evaluation, and shipping reliable models.
• End-to-end ownership mindset - ability to take a problem from raw data to production deployment, working with DevOps to stand up the necessary infrastructure.
• Strong experimentation skills: prototype fast, design rigorous evaluations, measure outcomes, reason about trade-offs (cost, quality, latency).

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