Telecommunications Engineering Technician (2212) – E-7 (Specified Activities) Vi

5G/6G mobile communication, optical communication network, satellite communication, network infrastructure construction, etc.Experts in wired and wireless communication network design, testing, and operationTo hireE-7 (Special Activities) – Communications Engineering Technician (2212)You must clearly understand the job requirements.
This content is based on the standards of the Ministry of Justice’s “Alien Residence Guide Manual” (December 2025).

1️⃣ Job Overview (2211 Computer Hardware Technician)

■ Job description

of computer systems and related equipmentResearch, design, develop, and test hardware structuresand professional technicians who perform performance improvement and technical consultation.

✔ Circuit design
✔ PCB design
✔ System architecture design
✔ Processor/memory design
✔ Equipment testing and performance optimization

※ This does not apply to simple assembly or production workers.

2️⃣ Examples of jobs that can be introduced

• Server/workstation HW design engineer

• Embedded system HW developer

• Semiconductor equipment interface design engineer

• IoT device HW designer

• Data center equipment design expert

3️⃣ Checklist of Key Permit Requirements

※ The qualification requirements in the manual are “applying general standards such as visa issuance and residence management.”

4️⃣ D-10 (Job Seeking) → E-7 (2211) change procedure

Change Process Schematic

① Conclusion of employment contract
→ ② Review whether the job falls under 2211
→ ③ Preparation of job description and organization chart
→ ④ Application for change of immigration status
→ ⑤ Start working after permission

Judging key points

• Distinction from software jobs (2222/2223)

• Is it a simple maintenance task?

• Is the job focused on research, design, and development?

• Direct connection between major and job

5️⃣ Distinction from SW developers (2222/2223)

6️⃣ Basic structure of submission documents (common to E-7)

• Integrated application form

• passport

• Alien registration card (when changing country)

• charge

• employment contract

• diploma

• Career certificate

• Business registration certificate

• Materials related to company technology development (R&D proof materials recommended)

7️⃣ Practical approval risk

• Simple equipment maintenance, not HW design

• Confused with production line technicians

• Lack of “design” expression in job description

• Salary standards not met

• Lack of company research and development performance

✔ Keywords that must be included in the job description:

• Hardware architecture design

• Circuit design and verification

• System integration testing

• Performance improvement research

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