Mechanical Design Engineer (Cost Optimization)

Work directly with machining and sheet-metal suppliers to find drawing-based cost reductions, and handle BOMs, 3D/2D design and prototype verification.

  • Experienced
  • Full-time
  • Seoul office
  • Closes Nov 6, 2026D-1
Apply by email

What you'll do

  • Communicate directly with machining and sheet-metal suppliers to identify and apply drawing-based cost reduction measures
  • Create BOMs and 3D/2D design drawings
  • Build prototypes of design outputs and verify their function (in collaboration with the Quality and Production teams, or directly)
  • Report design progress and cost-reduction results to senior management on a regular basis

What we're looking for

  • 5+ years of mechanical design experience (robots, automation equipment, industrial machinery, etc.)
  • Experience communicating directly with machining and sheet-metal suppliers on drawings and negotiating costs
  • Able to find cost-reduction opportunities on your own and turn improvement activities into routine work (able to present results in numbers)

Nice to have

  • Proficiency in SOLIDWORKS
  • Experience in transferring designs to mass production, or in designing with mass-production cost in mind
  • Track record of reducing costs through design changes
  • Experience in mechanical design of autonomous robots such as AGVs and AMRs

Role details

LocationSeoul office (Guro)
Hours5 days a week (Mon–Fri), 09:00–18:00, flexible start time (08:00–10:00)
Employment typeFull-time (3-month probation)
ExperienceExperienced
EducationHigh school diploma or higher
DocumentsResume (including career description for experienced applicants)
  • Contract-to-full-time conversion possible after 3 months

Hiring process

  1. 01Document screeningResume and career description review
  2. 02First interviewWith the team
  3. 03Second interviewWith executives
  4. 04Reference checkManager-level roles, with your written consent
  5. 05OfferCompensation and start date
  • After joining, a 3-month probation period determines conversion to a permanent position.
  • Some roles may include an additional interview.

How to apply

  1. 1Click the button below to open a new email with the subject and a short template already filled in.
  2. 2Attach your resume (with a career description if you're experienced) and any documents listed in this posting, such as a portfolio, as PDFs.
  3. 3We'll confirm when we receive your email, review your documents, and then get in touch to schedule interviews.
Apply by emailGet the resume template(opens in a new tab)

If your email app doesn't open, copy the address and subject below and send the email yourself.

To
recruit@polaris3d.co
Subject
[Application] Mechanical Design Engineer (Cost Optimization) - (Your name)

Before you apply: personal data notice

Personal data notice

Polaris3D asks for your consent to collect and use applicants' personal data as described below.

Data controller: Polaris3D

Purpose: identifying applicants, verifying identity, handling the hiring process and inquiries smoothly, checking application history, reference checks, and hiring-related administration

Data collected: name, email, phone number, resume, work experience, education, qualifications, military service, veterans' status, disability information, date of birth, portfolio, and career platforms (LinkedIn, work-related blogs, GitHub, etc.)

Retention period: 3 years from the date of application

※ For applicants who apply more than once, personal data is kept for 3 years from the most recent application and then destroyed.

※ If you would like your resume or other submitted documents deleted, we will delete them without delay. Please send deletion requests to recruit@polaris3d.co.

[Return of application documents]

(1) This notice is provided under Article 11 of the Fair Hiring Procedure Act. Applicants other than those finally hired may have the application documents they submitted returned. However, under the proviso to Article 11(1) of the Act, Polaris3D is exempt from the obligation to return documents that were submitted through Polaris3D's recruitment site or by email, or that the applicant voluntarily submitted in writing.

(2) If you complete a request for the return of application documents within 180 days from the date the hiring decision is finalized and send it by email (recruit@polaris3d.co), we will return the documents by post (at the recipient's expense) within 14 days of receiving the request. However, documents are not returned if they were submitted through Polaris3D's recruitment site or by email, were submitted voluntarily by the applicant, or were lost due to force majeure.

※ Please use "[Request for Return of Application Documents]" as the email subject.

※ For the request, please use Form No. 3 annexed to the Enforcement Rules of the Fair Hiring Procedure Act, available from the National Law Information Center.

(3) Polaris3D keeps submitted documents for up to 3 years from the date the hiring decision is finalized and destroys them thereafter in accordance with the Personal Information Protection Act.

(4) Any portfolio you submit is used only to verify your qualifications for hiring and for no other purpose.

This consent is required for hiring. You may refuse it, but if you do not consent, your application may be restricted.

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