Senior Performance Engineer Jobs in Castaic, CA (NOW HIRING)

Senior AIOpsML Engineer
Must Have Technical/Functional Skills
This position involves building and scaling a best-in-class AIOps function designed to transform raw observability signals into automated intelligence. As a Senior AIOps ML Engineer, the successful candidate will own the platform's intelligence layerarchitecting and operating the Lakehouse, engineering six purpose-built data marts, and training machine learning models to power anomaly detection, root-cause analysis, forecasting, and auto-remediation.
Operating at the intersection of data engineering, machine learning, and observability, this role requires translating high-cardinality telemetry from the Open Telemetry (OTel) pipeline into structured, query-optimized mart schemas, and developing the models that make those datasets actionable.
Roles & Responsibilities
Data Mart Ownership & Architecture
Responsibility includes designing, building, and maintaining six domain-specific data marts on top of a central Lakehouse (Delta Lake / Apache Iceberg). Each mart serves as a curated, schema-versioned, and query-optimized layer consumed by ML models, dashboards, and on-call runbooks.
Mart
Key Signals
Primary ML Use-Cases
APM
Latency histograms, error rates, trace spans, SLO burn
Anomaly detection, SLO forecasting, auto-triage
Infrastructure
CPU, memory, disk, network, host & container metrics
Capacity forecasting, saturation prediction, drift detection
Security
Auth events, threat signals, access logs, CVE feeds
Threat classification, anomalous-access detection, UEBA
Log
Structured & unstructured logs, error fingerprints
Log clustering, error pattern extraction, NLP classification
User Experience
RUM, Core Web Vitals, session replays, journey events
Frustration scoring, conversion prediction, UX regression
Business KPI
Revenue, conversions, order volume, product metrics
KPI correlation, incident business-impact quantification
Core Responsibilities
Lakehouse Architecture & Data Engineering
• Schema Design: Design and evolve the Lakehouse schema (Delta Lake / Apache Iceberg) for multi-domain observability data at petabyte scale.
• Pipeline Engineering: Build and maintain robust ingestion pipelines from the OTel Collector through Kafka to the Lakehouse, ensuring exactly-once semantics and strict schema enforcement.
• Data Transformation: Implement dbt transformation models to generate mart-ready, denormalized fact and dimension tables for each of the six domains.
• Data Quality Governance: Define and enforce data quality contracts, establishing SLAs for data freshness, completeness, and cardinality budgets per mart.
• Performance Optimization: Optimize query performance utilizing partitioning strategies, Z-ordering, bloom filters, and materialized views tailored for time-series patterns.
ML Model Development & AIOps
• AIOps Modeling: Design, train, and deploy machine learning models for streaming multivariate anomaly detection, root-cause analysis, and incident forecasting across all six mart domains.
• Streaming Inference: Build low-latency streaming inference pipelines (Flink / Spark Streaming) for real-time anomaly scoring on APM, infrastructure, and security signals.
• Log Intelligence: Develop sop histicated log intelligence modelsincluding clustering (DRAIN3 / LogBERT), NLP classification, and error deduplicationover the Log mart.
• Behavioral Analytics: Implement unsupervised and semi-supervised methods for User Experience frustration detection and KPI correlation analysis.
• Feature Store Management: Own the ML feature store, managing feature engineering, versioning, backfill pipelines, and point-in-time correct joins for training datasets.
• Model Lifecycle MLOps: Instrument model performance tracking, including drift detection, accuracy monitoring, and automated retraining triggers.
AIOps Platform & Productionization
• Workflow Orchestration: Design and operate the end-to-end AIOps workflow, spanning signal ingestion, feature computation, model inference, alert routing, and auto-remediation hooks.
• Model Serving Infrastructure: Build high-performance model serving infrastructuresupporting real-time REST/gRPC endpoints and async batch scoringwith strict p99 latency SLOs.
• Incident Tool Integration: Integrate AIOps insights with incident management platforms (PagerDuty, Opsgenie) and internal runbooks to deliver enriched, noise-reduced alerting.
• Business Impact Quantification: Define and publish metrics from the Business KPI mart to quantify the blast radius, revenue loss, and affected user counts for each incident.
Security & Compliance Observability
• Security Mart Collaboration: Partner with the Security team to build the Security mart schema, including threat feed ingestion, UEBA baselines, and CVE correlation pipelines.
• Threat Detection: Train anomalous-access and lateral-movement detection models, tuning precision/recall thresholds in collaboration with the SOC team.
• Compliance & Governance: Ensure all data handling across the marts adheres strictly to data residency requirements, PII masking standards, and audit-log protocols.
Collaboration & Engineering Standards
• Schema Contracts: Define telemetry schema contracts with the OTel Instrumentation team to guarantee high upstream signal quality for downstream ML models.
• Organizational Standards: Author ML platform RFCs and contribute actively to observability data model standards across the broader engineering organization.
• Mentorship & Reviews: Mentor junior ML and data engineers, and conduct rigorous design reviews for new mart schemas and model architectures.
Salary Range- $120,000-$130,000 a year
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