Senior Sustaining Engineer

Particle Measuring Systems•Niwot, CO

2d•$95,000 - $140,000•Hybrid

About The Position

Particle Measuring Systems is seeking a Senior Sustaining Engineer to support the lifecycle of its deployed products and solutions. This role is crucial for ensuring product reliability, resolving complex technical issues, and driving continuous product improvement. The position requires strong technical troubleshooting skills, cross-functional collaboration, and the ability to translate field feedback into actionable product improvements. The Senior Sustaining Engineer will act as a technical escalation point for field and service teams, working closely with R&D, product management, quality, and customer support to diagnose issues, implement corrective actions, and maintain product performance in the field. The company, established in 1972, is a global leader in micro-contamination monitoring equipment, serving the semiconductor and pharmaceutical industries.

Requirements

Bachelor’s degree in Electrical Engineering, Computer Engineering, Mechanical Engineering, or related field AND 6+ years of relevant engineering experience supporting complex systems, instrumentation, or automation technologies; OR equivalent combination of education and experience
Experience supporting fielded products or sustaining engineering activities
Demonstrated success diagnosing complex technical issues across hardware, software, and system integrations
Proficiency in coding and scripting (e.g., Python, PowerShell, or similar) aimed at accelerating troubleshooting activities, identifying effective workarounds, and reducing engineering effort required for bug fixing
Strong problem-solving skills using structured methodologies such as 8D, A3, or RCA
Experience supporting complex instrumentation or automation systems in production environments
Ability to interpret system architectures, control schematics, and communication protocols
Experience working with industrial communication protocols such as Modbus, Ethernet/IP, and OPC UA
Understanding of regulated manufacturing environments (GMP, GAMP, FDA, Annex 1 preferred)
Strong collaboration and communication skills across engineering and customer support teams
Ability to mentor junior engineers and guide technical problem-solving activities

Nice To Haves

Experience working in regulated or controlled manufacturing environments

Responsibilities

Serve as Level 3 technical escalation for complex product and system issues impacting customers or field service teams
Investigate product failures and field issues using structured root cause analysis methodologies
Work closely with R&D engineering teams to identify design-related issues and implement corrective actions
Drive Corrective and Preventive Actions (CAPA) to resolve recurring product or system issues
Support engineering change processes including design updates, firmware revisions, and product improvements
Analyze field data, service reports, and reliability trends to identify systemic product issues
Develop technical documentation including troubleshooting guides, service bulletins, and engineering change recommendations
Provide technical guidance and mentoring to service engineers and junior engineering staff
Collaborate with Quality, Manufacturing, and Product Management teams to improve product performance and serviceability
Participate in product lifecycle management activities including sustaining engineering reviews and reliability improvement initiatives
Resolve technical and tactical issues through structured problem-solving and collaboration
Communicate progress on resolutions to internal stakeholders and help with customer management as required
Continuously evaluate processes for improvements in efficiency, quality, and safety