# Senior HVAC Maintenance Technician

**Company**: Technical Operations
**Location**: Tarzana, California, United States of America
**Work arrangement**: onsite
**Experience**: senior
**Job type**: full-time
**Salary**: $71,749.60 - $107,624.40
**Category**: Engineering
**Industry**: Manufacturing

**Apply**: https://astrazeneca.eightfold.ai/careers/job/563877690010030?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply
**Canonical**: https://yubhub.co/jobs/job_c878496a-195

## Description

Lead preventive/predictive/corrective maintenance across AHUs, chillers, boilers, heat exchangers, VAVs, exhaust, dehumidifiers, and split systems.

Ensure cleanroom compliance with ISO 14644: HEPA integrity, airflow patterns, recovery times, and differential pressures; support aseptic areas and gowning zones.

Optimize and troubleshoot BMS/EMS/SCADA (Siemens, Allen-Bradley, Johnson Controls): tune PID loops, rationalize alarms, adjust sequences of operation, and document via change control.

Coordinate calibration (temperature, RH, pressure, flow) and support IQ/OQ/PQ with solid validation documentation.

Drive investigations and CAPA using RCA methods (5-Why, Fishbone) and maintain impeccable cGMP/GDP records and SOPs.

Champion audit readiness (FDA/EU GMP) and keep systems in a validated state.

Improve energy and performance: VFDs, heat recovery, demand-based ventilation, and smart control strategies.

Plan and execute outages/turnarounds/capital projects with contractors, materials, and risk assessments.

Lead safety culture (LOTO, confined space, hot work, arc-flash; EPA 608 refrigerants) and mentor junior techs.

Manage spares and CMMS workflows; partner closely with Quality, Manufacturing, Engineering, Validation, and Operations.

## Skills

### Required
- HVAC maintenance
- AHUs
- chillers
- boilers
- heat exchangers
- VAVs
- exhaust
- dehumidifiers
- split systems
- BMS/EMS/SCADA
- Siemens
- Allen-Bradley
- Johnson Controls
- PID loops
- alarms
- sequences of operation
- change control
- calibration
- validation documentation
- IQ/OQ/PQ
- cGMP/GDP records
- SOPs
- audit readiness
- FDA/EU GMP
- VFDs
- heat recovery
- demand-based ventilation
- smart control strategies
- outages
- turnarounds
- capital projects
- contractors
- materials
- risk assessments
- safety culture
- LOTO
- confined space
- hot work
- arc-flash
- EPA 608 refrigerants
- spares
- CMMS workflows
- Quality
- Manufacturing
- Engineering
- Validation
- Operations

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Source: [Apply at astrazeneca.eightfold.ai](https://astrazeneca.eightfold.ai/careers/job/563877690010030?utm_source=yubhub.co&utm_medium=jobs_feed&utm_campaign=apply)