Product Reliability Engineer II

Who We Are

Stored Energy Systems (SENS) is an award-winning manufacturer of premium quality power conversion products located in Longmont, CO. In business for over 50 years, SENS is the market leader with a proven track record of providing highly reliable battery chargers, DC power systems, and related products to industrial markets. For more information on our company please see our web site at www.sens-usa.com. 

View the SENS Product Catalog

Summary

The Reliability Engineer II is responsible for developing and maturing SENS's product reliability program through field performance analysis, failure investigation, corrective action leadership, and reliability data management. This role serves as the technical authority for product reliability, transforming field failure data into actionable improvements across engineering, manufacturing, supplier quality, and customer support functions.

Responsibilities

• Develop and maintain reliability metrics including field failure rates, warranty performance, MTTF, MTBF, and reliability growth indicators.
• Establish systems and processes for collection, analysis, and reporting of product reliability data.
• Lead the maturation of SENS's field failure analysis and corrective action processes.
• Develop reliability dashboards and reporting mechanisms to communicate product performance trends.
• Create and maintain a reliability knowledge database of failure modes and corrective actions.
• Recommend reliability improvement initiatives based on field and manufacturing performance data.
• Perform detailed electrical, firmware, battery system, and electromechanical failure analysis at the component, assembly, and system levels utilizing laboratory instrumentation and diagnostic equipment.
• Support investigation of firmware-related field failures through collaboration with software and firmware engineering teams.
• Provide training, mentorship, and technical guidance to Supplier Quality, Production, and Engineering personnel. 

Required Qualifications

• Bachelor’s degree (or higher) in engineering or similar technical discipline. 
• 5+ years experience with industrial power conversion equipment, battery systems, power electronics, telecom power systems, UPS systems, chargers, or related products.
• Strong analytical and problem-solving abilities with keen attention to detail. 
• Proficient in data extraction, analysis, reporting, and documentation with effective verbal and written communication skills using a variety of platforms. 
• Skilled in multitasking, time management, and prioritization. 
• Knowledge of preventive and corrective action methodologies (e.g., 8D, A3). 
• Experienced with SPC and quality improvement tools such as Pareto Analysis, Histograms, Scatter Diagrams, 5 Whys, 5W2H, and Fishbone Analysis. 
• Proficient in Microsoft Office Suite, with advanced skills in Excel, and experience using Visio (or equivalent), Teams, SharePoint, Power Automate, Power Apps, and Power BI (or equivalent). 

Preferred Qualifications

• Familiarity with IPC-A-610 PCBA workmanship standard.
• Familiarity with reliability engineering principles including Weibull analysis, reliability growth, and accelerated life testing.       

Location: This position is located on-site in Longmont, CO. 

Base Compensation: $100,000 - $115,000 is the projected range of annual base salary for this role depending on the candidate’s overall qualifications and experience. 

Bonus: This position is eligible for an annual bonus based on individual and company performance.

Closing Date: August 1st. While we expect to keep the position open through this date, the posting may be extended or closed early based on applicant volume and hiring needs.

Onsite Perks

• Free gym with 24/7 access
• Free Electric Vehicle charging
• Breakfast and Lunch Café
• After hours Grab & Go snacks
• Basketball court
• Walking paths

Benefits

• Paid Time Off
• Paid holidays
• Medical insurance
• Dental insurance
• Vision insurance
• Short-term and long-term disability
• Life insurance
• 401(k) plan with immediate vesting
• Employee referral program

At SENS, our culture is rooted in a set of core values that reflect who we are and how we work. In a recent 2025 poll, our employees identified the values that best define us: “Innovative”, “Respectful”, “Inviting”, “Flexible”, “Collaborative”, and “Growth Driven”. Our team describes us as a dynamic, forward-thinking company where everyone has the opportunity to thrive.

We pride ourselves on being an equal opportunity employer, fully dedicated to fostering inclusion and diversity. We welcome all applicants, regardless of race, color, religion, sex, sexual orientation, gender identity, genetic information, national origin, age, disability, veteran status, or any other legally protected characteristic.

We hope you're interested in making a difference with us. Even if you don't feel that you meet every qualification listed in this job description, we still encourage you to apply.