Full-Time

Reliability Validation & Testing Engineer

Updated on 9/4/2026

CelLink Technologies

CelLink Technologies

51-200 employees

Manufactures flex harnesses for automotive

Compensation Overview

$90k - $140k/yr

+ Employee stock option plan

San Carlos, CA, USA

In Person

Bachelor's, Master's

Category
Hardware Engineering (1)
Required Skills
Minitab
Python
Software Testing
GD&T
Data Analysis
Excel/Numbers/Sheets
Requirements
  • A Bachelor's or Advanced degree in Mechanical, Electrical, or Materials Engineering.
  • 3–6 years of experience in reliability validation, test engineering, or product validation roles, with strong lab-based hands-on testing experience. New graduates may be considered with extensive thesis or laboratory research in reliability testing.
  • Strong understanding of reliability engineering fundamentals, including Arrhenius, Coffin-Manson, and inverse power law acceleration models and reliability growth methods.
  • Experience creating and executing Design Verification Plan & Report plans.
  • Hands-on experience with environmental chambers, vibration and shock testing, thermal cycling, electrical load testing, and data acquisition systems.
  • Ability to interpret engineering drawings and Geometric Dimensioning and Tolerancing.
  • Statistical analysis capability using Excel, JMP, Minitab, or Python.
  • Structured problem-solving skills using 8D, DMAIC, and fault tree methods.
  • Strong documentation discipline.
Responsibilities
  • Develop product reliability validation strategies aligned with reliability targets, including mean time between failures, mission profile, warranty life, and field exposure risk.
  • Create and own Design Verification Plan & Report documentation focused on reliability validation and accelerated life testing.
  • Translate customer requirements, use cases, and environmental exposure into structured validation plans.
  • Define accelerated test profiles, including HALT, HASS, vibration, thermal cycling, shock, humidity, and power cycling.
  • Execute electrical, mechanical, environmental, and thermal reliability tests.
  • Design and build test fixtures when required.
  • Use instruments with sensors, including thermocouples, strain gauges, and data loggers.
  • Develop test automation where applicable.
  • Monitor, log, and validate test data integrity.
  • Lead failure investigations from laboratory or field returns.
  • Conduct structured root cause analysis using 8D, fishbone, fault tree, and Weibull analysis.
  • Perform field exposure risk assessments and containment planning.
  • Drive corrective actions into design and process teams.
  • Apply Physics-of-Failure principles to understand degradation mechanisms.
  • Perform statistical analysis of test results, including Weibull analysis, life data analysis, and confidence intervals.
  • Evaluate reliability growth trends.
  • Present technical findings to cross-functional stakeholders and leadership.
  • Maintain validation documentation for regulatory and customer audits.
  • Work closely with design engineering to influence product robustness early in development.
  • Partner with manufacturing engineering to incorporate validation learnings into production controls.
  • Support qualification builds and pilot runs.
  • Contribute to Design Failure Mode and Effects Analysis and Process Failure Mode and Effects Analysis updates based on validation findings.
Desired Qualifications
  • Experience with HALT and HASS methodologies.
  • Experience performing life data modeling and Weibull analysis.
  • Familiarity with Advanced Product Quality Planning and Design Failure Mode and Effects Analysis integration.
  • Experience in high-volume manufacturing environments.
  • Experience in regulated industries such as automotive, battery, or aerospace.
  • Experience developing automated test setups or scripting test sequences.
  • Knowledge of reliability standards such as IEC, UL, ISO, and MIL-STD.

CelLink makes flex harnesses, flex circuits that replace traditional wiring in vehicles and industrial systems. They pack power, data, and sensing into a single thin circuit, with busing, fusing, and monitoring integrated, and use automated, tool-free manufacturing for quick design changes and high-volume production. Their approach reduces weight by over 70% and volume by over 90% compared with standard wiring and targets direct sales to OEMs and hyperscalers with scalable factories. Their goal is to speed electrification and the digitization of industrial infrastructure by providing compact, reliable power, data, and sensing networks for automotive, aerospace, data centers, and grid storage.

Company Size

51-200

Company Stage

N/A

Total Funding

N/A

Headquarters

San Carlos, California

Founded

2011

Simplify Jobs

Simplify's Take

What believers are saying

  • DOE closed CelLink’s $362 million Georgetown loan in April 2024.
  • CelLink said July 2026 funding raised another $100 million at $989 million valuation.
  • March 2026 workforce data shows 175 employees and 34 active postings.

What critics are saying

  • Georgetown production timeline slipped from mid-2023 to 2025 openings, signaling execution strain.
  • A 175-person workforce cannot staff a 1,200-job factory without sustained hiring.
  • Failure to ramp Georgetown before DOE milestones jeopardizes financing and plant viability.

What makes CelLink Technologies unique

  • CelLink’s CCA+ folds bussing, sensing, and fusing into one flex circuit.
  • Its zero-tooling manufacturing enables design changes without new hardware.
  • October 2025 data-center flex circuits target megawatt racks and robotic assembly.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

401(k) Retirement Plan

401(k) Company Match

Paid Vacation

Paid Holidays

Unlimited Paid Time Off

Flexible Work Hours

Hybrid Work Options

Remote Work Options

Wellness Program

Mental Health Support

Gym Membership

Family Planning Benefits

Fertility Treatment Support

Conference Attendance Budget

Professional Development Budget

Training Programs

Tuition Reimbursement

Professional Certification Support

Mentorship Program

Phone/Internet Stipend

Home Office Stipend

Adoption Assistance

Parental Leave

Relocation Assistance

Childcare Support

Sabbatical Leave

Stock Options

Company Equity

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