Test Engineer

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General Summary


Plans, Oversees, and documents the development and qualification testing of temperature-controlled packaging systems to support CSafe’s new product development, commercial needs, and ongoing product portfolio lifecycle management.


Essential Functions & Duties

  • Plans, oversees, and documents the construction and testing of thermal containers (Active & Passive), packaging, parcels and cooling media and other supporting packaging materials.
  • Verifies materials and test samples to be used in thermal and distribution qualification testing.
  • Assists in the development of Design Qualification (DQ) and Operational Qualification (OQ) testing protocols, test plans and procedures to meet customer and industry validation requirements.
  • Compiles and reviews test data upon completion of testing and performs technical analysis.
  • Drafts and compiles technical content, data and graphics for inclusion in the qualification test report, packaging instructions and precondition studied.
  • Provide feedback and updates to the Engineering lead, Technical Manager, Product Manager, and Commercial lead regarding test status, results and updates throughout the testing and evaluation process.
  • Oversee and scheduled equipment maintenance, calibration, and validation testing per Standard Operating Procedures (SOP) and Work Instructions (WI) to ensure compliance.
  • Oversee the technical and laboratory workplace to be of a high level of organization, cleanliness and order using a “5S Methodology”’.
  • Select, validate, plan, and oversee external testing services at approved third party Test Laboratories for distribution testing and thermal testing when required. This includes material assembly, preconditioning, delivery, and return/inspection of test materials.
  • Utilize CAD cutting table and other assembly tools to produce test samples, commercial samples, and prototypes as needed.
  • The ability to perform thermal calculations, analysis and computer simulation of packaging products and cooling media would be an advantage.
  • Other duties as assigned.


Knowledge, Skills, & Abilities

  • Strong interpersonal communication skills, both written and verbal.
  • Strong technical writing skills including generation of protocol, reports, memos, and other documents as needed.
  • Organizational skills; able to meet deadlines.
  • Knowledge of Microsoft 365 suite of programs. Must be proficient user of Microsoft Word & Excel.
  • Familiarity with CAD software (Solidworks) and testing guidelines (ISTA, ASTM, IATA) a plus.
  • Ability to create, read and understand technical drawings, test standards and test protocols.
  • Must possess analytical thinking and reasoning skills.
  • Must be self-motivated, self-managed and capable of overseeing others.
  • Must be thorough and exercise attention to detail.
  • Must be a team player.
  • Driving License is required.


Education & Experience

  • Minimum bachelor’s degree in mechanical, Thermal, Packaging Engineering or related field.
  • 5 years’ experience will be preferable.


Work Environment

  • Testing environment (chambers – not clean room) and Light Industrial Environment

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Company: CSafe
Apply for the Test Engineer
Location: Long Crendon
Job Description:

General Summary

Plans, Oversees, and documents the development and qualification testing of temperature-controlled packaging systems to support CSafe’s new product development, commercial needs, and ongoing product portfolio lifecycle management.

Essential Functions & Duties

  • Plans, oversees, and documents the construction and testing of thermal containers (Active & Passive), packaging, parcels and cooling media and other supporting packaging materials.
  • Verifies materials and test samples to be used in thermal and distribution qualification testing.
  • Assists in the development of Design Qualification (DQ) and Operational Qualification (OQ) testing protocols, test plans and procedures to meet customer and industry validation requirements.
  • Compiles and reviews test data upon completion of testing and performs technical analysis.
  • Drafts and compiles technical content, data and graphics for inclusion in the qualification test report, packaging instructions and precondition studied.
  • Provide feedback and updates to the Engineering lead, Technical Manager, Product Manager, and Commercial lead regarding test status, results and updates throughout the testing and evaluation process.
  • Oversee and scheduled equipment maintenance, calibration, and validation testing per Standard Operating Procedures (SOP) and Work Instructions (WI) to ensure compliance.
  • Oversee the technical and laboratory workplace to be of a high level of organization, cleanliness and order using a “5S Methodology”’.
  • Select, validate, plan, and oversee external testing services at approved third party Test Laboratories for distribution testing and thermal testing when required. This includes material assembly, preconditioning, delivery, and return/inspection of test materials.
  • Utilize CAD cutting table and other assembly tools to produce test samples, commercial samples, and prototypes as needed.
  • The ability to perform thermal calculations, analysis and computer simulation of packaging products and cooling media would be an advantage.
  • Other duties as assigned.

Knowledge, Skills, & Abilities

  • Strong interpersonal communication skills, both written and verbal.
  • Strong technical writing skills including generation of protocol, reports, memos, and other documents as needed.
  • Organizational skills; able to meet deadlines.
  • Knowledge of Microsoft 365 suite of programs. Must be proficient user of Microsoft Word & Excel.
  • Familiarity with CAD software (Solidworks) and testing guidelines (ISTA, ASTM, IATA) a plus.
  • Ability to create, read and understand technical drawings, test standards and test protocols.
  • Must possess analytical thinking and reasoning skills.
  • Must be self-motivated, self-managed and capable of overseeing others.
  • Must be thorough and exercise attention to detail.
  • Must be a team player.
  • Driving License is required.

Education & Experience

  • Minimum bachelor’s degree in mechanical, Thermal, Packaging Engineering or related field.
  • 5 years’ experience will be preferable.

Work Environment

  • Testing environment (chambers – not clean room) and Light Industrial Environment

Posted: May 7th, 2026