Job Summary: 
At LG Energy Solution Arizona, Inc., the Sr. Engineer – Analysis, Quality Assurance leads complex failure investigations to identify the root causes of safety and reliability issues related to lithium-ion battery cells. Operating within an advanced laboratory and analytical environment, this role drives in-depth analysis of internal, external, and field-returned samples to determine failure mechanisms and systemic risks across supplier, production, and finished product stages. The Senior Engineer develops detailed technical reports, leads cross-functional investigations, and provides technical leadership for failure analysis activities and investigation strategy. Through these efforts, the role guides engineering and quality teams in implementing effective corrective and preventive actions that strengthen product safety and reliability.

Responsibilities:
• Lead structural and design safety risk analysis of lithium-ion battery cell systems using advanced analytical methods and precision analysis equipment.
• Lead complex battery failure investigations by analyzing internal samples, field-returned products, and adjacent cell conditions to identify root causes and failure mechanisms.
• Design and lead reproducibility experiments to validate suspected failure mechanisms and confirm systemic root causes of field quality issues.
• Serve as a Subject Matter Expert (SME) in failure analysis, mentoring engineers and guiding operators on standardized analysis methods and proper use of laboratory equipment.
• Develop and maintain a failure occurrence knowledge library documenting key failure phenomena identified through field quality investigations and reproducibility testing.
• Perform advanced data analysis and present investigation findings, root causes, and recommended corrective actions to engineering leadership and cross-functional stakeholders.
• Drive cross-functional investigations with Engineering, Quality, Customer Service/Warranty teams, suppliers, and global headquarters to resolve complex product issues and strengthen product reliability.
• Maintain laboratory organization and compliance with 5S3R standards (Sort, Set in Order, Shine, Standardize, Sustain; Right Location, Right Quantity, Right Container) to ensure a safe and efficient analysis environment.

Qualifications:
• Bachelor’s degree in Engineering or a related technical field; equivalent diploma with relevant experience may be considered.
• 7+ years of experience in quality engineering, failure analysis, or reproducibility testing within an automotive or manufacturing environment.
• Extensive experience conducting complex failure investigations of lithium-ion battery components, including fire-related or safety-critical events.
• Advanced experience using failure analysis and non-destructive testing equipment, including 3D CT systems, SEM/EDX, ion milling, mechanical polishing, or optical microscopy.
• Experience operating battery charge and discharge system equipment for product testing and failure investigation.
• Experience in metrology, measurement systems programs, and calibration processes preferred.
• Demonstrated problem-solving capability, with Six Sigma Green Belt or equivalent methodology experience preferred.
• Ability to work flexible hours as needed to support global collaboration and investigation activities.

Skills:
• Knowledge of IATF and ISO standards.
• Experience using Minitab, Six Sigma methodologies, and 8D problem-solving approaches.
• Excellent verbal, written, and presentation communication skills.
• Ability to provide technical guidance on failure analysis methods and investigation approaches.
• Strong critical thinking abilities and analytical problem-solving skills.
• Demonstrated teamwork and effectiveness in achieving project and organizational goals.
• Proficiency in Microsoft Office Suite and Minitab for data analysis and reporting.
• Strong data analysis and statistical problem-solving capability.

Join our Movement and Champion Restaurant Culture! 💚

At TheFork we believe that the best things in life happen around the table.
As the leading restaurant booking platform in Europe, we connect the broadest community of loyal diners with the world’s favorite restaurants. Powered by innovation and a deep passion for the restaurant industry, we create unique dining experiences across 11 countries.

We’re part of the Tripadvisor Group and proud to be building a diverse, people-first culture where “respect”, “ownership”, “growth” and “better together” values thrive.
If you’re passionate about food, technology, and making a real impact, your seat at the table is ready.

👉 Discover life at TheFork

What you will do:

• Design, build, and evolve test automation frameworks and internal tooling (Playwright + TypeScript as primary stack)
• Act as owner of the test ecosystem, including repositories, architecture, and long-term maintainability
• Define and enforce testing standards, guidelines, and best practices across engineering teams
• Enable developers to write effective tests by providing abstractions, utilities, and reusable components
• Drive test architecture decisions (structure, layering, fixtures, data handling, isolation strategies)
• Collaborate with teams to improve testability of systems (APIs, frontend, data flows) without directly owning feature tests
• Own and optimize CI/CD test pipelines (e.g., Jenkins), focusing on speed, reliability, and scalability
• Identify systemic issues (flakiness, instability, slow feedback loops) and implement structural solutions, not patches
• Design and maintain test data management and environment orchestration strategies
• Define, implement, and evolve quality gates and metrics (coverage, reliability, execution time, signal quality)
• Support teams in debugging complex failures by providing observability and diagnostic tooling
• Explore and integrate AI-driven testing capabilities to improve productivity and test robustness
• Mentor engineers and promote a quality engineering mindset across the organization

Who you are:

You Must Meet These Critical Qualifications (Mandatory requirements to be listed here)

• 2 to 5 years of experience
• Strong experience as an SDET / Quality Engineer with a focus on frameworks and tooling, not just test implementation
• Excellent programming skills in TypeScript / JavaScript
• Proven experience designing and maintaining test frameworks at scale
• Hands-on experience with modern automation tools (Playwright preferred)
• Strong understanding of test architecture patterns (test pyramid, separation of concerns, isolation strategies)
• Experience enabling teams through libraries, SDKs, or shared tooling
• Solid experience with CI/CD systems (e.g., Jenkins), including pipeline optimization and debugging
• Experience with API testing (REST/GraphQL) and designing reusable testing layers
• Strong problem-solving skills focused on root cause analysis and systemic improvements
• Comfortable working cross-team and acting as a technical reference for quality
• Fluent in English (written and spoken)

You Can Impress With These Additions (“Nice to have” to be listed here)

• Experience building internal developer platforms or test platforms
• Deep expertise in Playwright ecosystem (custom reporters, fixtures, plugins, parallelization strategies)
• Experience with GraphQL testing tooling and schema-driven validation
• Familiarity with quality gate systems (e.g., SonarQube / SonarCloud) and defining engineering-wide standards
• Experience with test data platforms (dynamic data generation, seeding, environment control)
• Exposure to AI-assisted testing / LLM-based tooling
• Backend development experience (Node.js preferred)
• Experience with containerization (Docker) and ephemeral environments
• Strong understanding of observability (logs, metrics, tracing) applied to test systems
• Experience in organizations where testing is decentralized but governed centrally

What we offer you: 

😄 An awesome team 

🏠 A permanent contract (that can be useful in life) 

⚖️Flexible working environment (2 days home office per week +  up to 4 total weeks additional flexibility during the summer period and in December to work fully remotely)

💸 Competitive fixed salary and bonus 

🍕 Lunch vouchers available for each working day (because yes, we like to try our best restaurants)  

🌎 International teams and a multicultural environment spanning 10 offices across Europe

🤝 Highly inclusive working environment 

🤸‍♀️ Lifestyle benefits that can be used to reimburse expenses related to physical and leisure activities, family support, travel etc 

🎓 Continuous learning and development programs

😌 Free access to the Calm app to help you build resilience wherever you are in your mental health journey

🐣Dedicated parental leave and caregiver leave policies (12 weeks fully paid)

🏥Health insurance covered by the company 

👶 Financial support for birth, adoption, civil partnerships, or marriage

🚝 Transport allowance

🏥Health insurance fully covered by the company 

👩‍🦽 Life & Disability Insurance at no cost to the employee

🍴 Amazing offices with dining, coffee points and leisure area    

🎤 Team building events

All hiring happens through our careers site and official email. We do not text or ask for payment during the hiring process. Please report any suspicious messages immediately.

We believe that we are better together, and we welcome you for who you are. We endeavor to ensure  that everyone - regardless of ability, age, socio-economic & cultural background, ethnicity, faith, gender, gender expression, gender identity, ideology, national origin, race, sexual orientation, marital status, or any characteristic protected under  applicable law -has the opportunity to reach their full potential. At TheFork, we want you to bring us your unique perspectives and experiences, so we can collectively continue disrupting the restaurant industry and go from good to great.

TheFork is committed to a fair recruitment process. If you have special needs and require reasonable support during your application,  interview, or participation in the selection process due to health conditions or disability, please direct your inquiries to AccessibleRecruitment@TheFork.com. Our HR team will review the request and respond accordingly.

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