Flex

Principal Thermal Mechanical Engineer

Flex$153K — $211K *
Technical Services
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • Bachelor's degree in engineering or related field, or equivalent experience.
  • 10 years of industry experience.
  • Advanced operations, technical, and relationship skills.
  • Expertise in complex technical areas or broad knowledge across multiple areas.
  • Mastery in multiple areas and industry knowledge.
  • Ability to impact medium-term direction and operational success.
  • Experience in creating functional processes or technologies.

Responsibilities

  • Define system specifications, input/output processes and working parameters for compatibility.
  • Coordinate design and integration of subsystems into a total system.
  • Identify and resolve program deficiencies.
  • Provide software development and consultation to users.
  • Track customer/project issues and drive resolution.
  • Lead as the main Project Development Engineer.
  • Develop and maintain project schedules.

Benefits

  • Full range of medical, dental, and vision plans.
  • Life insurance coverage.
  • Short-term and long-term disability options.
  • 401(k) matching contributions.
  • Paid vacation and sick time.
  • Tuition reimbursement opportunities.
Full Job Description
Job Posting Start Date 05-05-2026 Job Posting End Date 08-28-2026

Job Summary

Summary:

The "Systems Engineer" will be based in , reporting to ......

This role will be accountable for designing, defining, and implementing system requirements for complex customer systems/products and/or preparing studies and researching existing systems prior to the transition to manufacturing for new product introduction.

Responsibilities:
  • Defines system specifications, input/output processes and working parameters for hardware/software compatibility.
  • Coordinates design of subsystems and integration of total system.
  • Identifies, explores, and resolves program deficiencies.
  • Provides complex software development and consultation to prospective users.
  • Tracks customer/project issues and drives resolution.
  • Serves as main Project Development Engineer.
  • Develops and maintains project schedule.
  • Prepares and maintains Engineering NRE estimates.
  • Interfaces with and guides customer product development calls and meetings.
  • Acknowledges customer inquiries concerning complex system software and applications.
  • Accountable for systems level development and testing requirements involving finalizing approved Vendor Lists and design of components which are unavailable.
  • Provides complex technical assistance for sales presentations, product demonstrations, installation, and maintenance of company products to ensure that the system is functioning according to specifications.
  • Provides technical direction, as required, for the implementation of industry regulations and best practices as they apply to product/systems.
  • Develops product specifications where applicable.
  • Develops and/or approves test plans and test reports.
  • Defines pre-production system build logistics and deployment schedules.
  • Develops engineering release documentation.
  • Builds mini applications, as required, based on customer requirements to demonstrate feasibility of an application, often requiring rapid prototyping.
  • Ensures ISO process conformance.


Qualifications:
  • Typically requires bachelor's degree in engineering or related field or equivalent experience and training.
  • Typically requires 10 years of industry experience.
  • Demonstrates advanced operations, technical and people and/or process skills as well as customer (external and internal) relationship skills.
  • Demonstrates detailed expertise in very complex functional/ technical area or broad breadth of knowledge in multiple areas; understands the strategic impact of the function across sites
  • Demonstrates mastery of expertise in multiple areas and industry
  • Impacts the medium-term (semi-annual/annual) direction and financial or operational success of the function.
  • Approves and/or creates functional processes or technologies.
  • Executes and provides input to functional strategic plans and objectives for site.
  • Assists in developing plans for structuring and implementing major initiatives.
  • Defines/ determines and approves functional methods, standards, policies and procedures. Makes decisions for sections/sub-functions. Decisions may affect multiple sections/sub-functions. Decisions may affect the site.


What you'll receive for the great work you provide:
  • Full range of medical, dental, and vision plans
  • Life Insurance
  • Short-term and Long-term Disability
  • Matching 401(k) Contributions
  • Vacation and Paid Sick Time
  • Tuition Reimbursement


Pay Range (Applicable to Massachusetts)

$153,500.00 USD - $211,000.00 USD Annual

Job Category
Design, Process & Technology Engineering

Is Sponsorship Available?
No

About Flex

Flex Ltd. is an American Singaporean-domiciled multinational electronics contract manufacturer. It is the third largest global electronics manufacturing services (EMS), original design manufacturer (ODM) company by revenue, behind only Pegatron for what concerns original equipment manufacturers. Flex has manufacturing operations in over 30 countries, totaling approximately 200,000 employees.
Learn more about Flex
Size
172,648 employees
Market Cap
$9.7 billion
Industry
Net Income
$421 million
Founded
2016
5 Year Trend
+1.8%
Revenue
$23.3 billion
NASDAQ

Similar Jobs

More Jobs at Flex

More Technical Services Jobs

Find similar Principal Thermal Mechanical Engineer jobs: