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Reliability Engineer

Milwaukee Tool · Brookfield, WI · Full time

Posted Aug 18, 2026 · We last checked this listing on Oct 6, 2026

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Likely interview questions for this role

Written from this job description, not a generic list. Each one notes what the interviewer is really checking.

About your past

Tell me about a time your reliability data changed a design decision.

What they are checking: Whether their work has actually influenced products, not just produced reports.

Tell me about a time you worked with a cross-functional team to fix a reliability problem.

What they are checking: Whether they can work across design, quality and manufacturing to solve problems.

What would you do

Field returns show packs failing early in cold weather. How do you investigate?

What they are checking: Whether they can connect field data to lab testing and find the root cause.

A design engineer pushes back on your test results. How do you handle it?

What they are checking: Whether they can defend findings with data and stay collaborative.

How do you decide when a product is reliable enough to launch?

What they are checking: Whether they can make a clear recommendation based on risk and data.

About the work

How would you build a reliability test plan for a new battery pack?

What they are checking: Whether they can design tests for real use, like cycling, temperature and drops, for energized products.

What failure modes worry you most in lithium-ion battery systems?

What they are checking: Whether they understand risks like thermal runaway, cell imbalance and connector wear.

Walk me through how you'd use a Weibull analysis on life test data.

What they are checking: Whether they can use statistics to predict product life and make decisions.

How do you use DFMEA in the development process?

What they are checking: Whether they use FMEA as a living tool to find and reduce risk early.

How do you design accelerated life tests that still reflect real use?

What they are checking: Whether they understand the limits of acceleration and avoid misleading results.

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The full job description

As published by Milwaukee Tool.

Job Description: Job Description Come be DISRUPTIVE with us! At Milwaukee Tool, our most valued resource is our dedicated team of employees - employees who work with a passion to be the best and an unparalleled pride in their work and in the Milwaukee brand. We know that the only way to sustain growth and success is to value the growth and success of each person within the organization that's why we invest in an individual's growth and development from day one. All our teams touch every step of the process, that is why our Engineering teams are some of the key contributors to our continuous innovations. The fast-paced, agile environment continuously delivers disruptive technologies by providing every team with the resources needed to excel and working directly with End Users to understand how to deliver heavy duty products with high performance. We create Best in Class products by leveraging advanced analysis tools, extensive testing regimes, state-of-the-art manufacturing processes and cross-functional agility. Milwaukee Tool is looking for a Reliability Engineer I to be part of the Battery System Reliability team. This role will be a vital part of the development of new energized device products that will provide power to the next generation of advanced power tools. As a reliability engineer, you will work with a cross-functional team spanning design engineering, product marketing engineering, advanced manufacturing engineering, supplier quality, and factory quality personnel to bring products to market in a fast paced environment. This work environment requires the ability to quickly pivot, manage change, and analyze test data to make sound judgements; all in the effort to continue to deliver the outstanding products that our customers demand from Milwaukee Tool. Duties and Responsibilities Product Development and Life Cycle Management • Collaborate and lead teams to evaluate new product designs and engineering changes with respect to product reliability, user requirements and warranty information • Coordinate with Engineering and Marketing to define product specifications required for all aspects of test validation for reliability and quality requirements. • Optimize product testing to shorten test durations, make concrete design decisions, and shorten the product development process. • Lead Risk Assessments (Design and Manufacturing) during the product development cycle • Collaborate with our Global suppliers to optimize the quality of the components that Milwaukee integrates into its product portfolio. • Track multiple projects simultaneously to ensure adherence to schedule and the Milwaukee Tool process. Testing/Analysis • Develop test plans and procedures based on new or established products, to ensure product meets customer requirements • Lead test laboratories implementing test plans/procedures ensuring full test completion and best practices are utilized • Apply statistical analysis and reliability modeling, to analyze product data to draw conclusions, and communicate findings through reports and presentations that are concise, logical, and definitive. • Ensure timely failure reporting and lead root cause analysis and effective corrective/preventative actions (FRACA) Job Requirements • Bachelor of Science Degree in Engineering or educational equivalent field • 1-3 years of experience in reliability, quality, test, or process engineering environments. • Experience with new product commercialization processes emphasizing design, manufacturing, quality, test or reliability activities • Experience including training in quality engineering fundamentals and proven experience leading a primary function within a project team • Previous relevant experience with Design of Experiments, life data analysis, and other related statistical tools and software (i.e. Minitab, Reliasoft) • Written and verbal communication skills and creative problem-solving capabilities • Ability to travel 10% of the time is required (travel includes Domestic and International) • Preferred: ASQ Reliability Engineering Certification (ASQ-CRE) or the ability and desire to achieve certification • Preferred: Design for Six Sigma (DFSS) or Six Sigma experience • Preferred: Working knowledge of power electronics design concepts, PCBA fabrication, and reliability test methods used in the electronics industry. • Preferred: Working knowledge of international safety standards and testing methods like IEC, UL, UN, etc relevant to energy storage products. Milwaukee Tool is an equal opportunity employer. All qualified applicants will receive considration for employment without regard to race, religion, color, national origin, sex, gender identity, sexual orientation, age, status as a protected veteran, among other things, or status as a qualified individual with disability. Milwaukee Tool is an equal opportunity employer.

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