Backend Engineer, AMR Fleet Control System (Seoul)

Build and operate the backend of the autonomous-robot control system with Java Spring Boot, including RESTful APIs, database modeling and AWS infrastructure.

  • 3–10 years of experience
  • Full-time
  • Seoul office
  • Closes Nov 6, 2026D-1
Apply by email

What you'll do

  • Develop and maintain web service backends based on Java Spring Boot
  • Design RESTful APIs and integrate with external systems
  • Design database models and improve performance (MySQL/PostgreSQL, etc.)
  • Operate AWS-based infrastructure (EC2, RDS, S3, etc.)

What we're looking for

  • 3+ years of experience developing web applications with Java Spring Boot, or equivalent
  • Experience designing and implementing RESTful APIs
  • Experience with Git-based collaboration and version control
  • Experience designing RDBMS (MySQL, PostgreSQL, etc.) and tuning SQL
  • Experience integrating MQTT-based message brokers (Mosquitto, etc.)
  • Able to configure and operate Nginx and Tomcat at a basic level

Nice to have

  • Experience with front-end frameworks such as React or Vue.js
  • Experience building and operating AWS-based infrastructure (EC2, S3, Lambda, CloudWatch, etc.)
  • Experience setting up Docker and CI/CD pipelines (GitHub Actions, CodePipeline, etc.)
  • Experience with monitoring and log-analysis tools (Grafana, ELK, Prometheus, etc.)
  • Experience integrating VDA5050-based AMR/AGV robots, or developing OPC-UA-based industrial equipment communication
  • Experience designing and building data lake architectures (S3, Glue, Athena, Lake Formation, etc.)

Role details

LocationSeoul office (Guro)
Employment typeFull-time (3-month probation)
Experience3–10 years of experience
EducationBachelor's degree or higher
DocumentsResume (including career description) and cover letter required; portfolio optional
  • The probation period (about 3 months) is spent at the Pohang headquarters, after which you move to the Seoul office
  • Cover letter required; portfolio optional
  • Tech stack: Docker, Git, Java, MySQL, PostgreSQL, React, Spring Boot, Vue.js, REST API, AWS
  • The application period may change or close early depending on company circumstances

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)

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recruit@polaris3d.co
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[Application] Backend Engineer, AMR Fleet Control System (Seoul) - (Your name)

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Personal data notice

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Data controller: Polaris3D

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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

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※ 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.

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