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Toss

Fintech super-app for payments and banking

Device Hardware Quality Engineer

Hardware Validation & TestingConfirmed live in the last 24 hours
Full-timeSeoul, South KoreaNo salary listedIn-person

About the Job

Requirements

  • Experience owning quality assurance or quality management for consumer electronics with display or camera functions, IoT devices, or embedded hardware products, including leading quality criteria and verification activities from development through mass production.
  • Experience using electronic measurement equipment to understand products and solve problems is desirable.
  • Experience managing external manufacturing partners' quality processes and leading defect analysis and issue resolution using structured methods such as 5-Why and 8D.
  • Understanding of mechanical design, mold, and injection-molding processes is desirable.
  • Experience identifying and leading resolution of production issues at manufacturing partner sites during production events.
  • Ability to use field data and observations to make impact-conscious decisions and responses.

Responsibilities

  • Identify potential risks from a DFQ perspective from the early stages of new product development and incorporate quality assurance criteria into component selection and design reviews.
  • Define and conduct key hardware and reliability tests for payment terminals, including temperature and humidity, drop, and vibration testing, and continuously improve them as products and production stages change.
  • Validate manufacturing partners through advance audits and inspect quality from a 4M perspective at production stages including EVT, DVT, PVT, and initial mass production; track unresolved issues and develop improvement directions.
  • Analyze hardware and reliability defects during development, determine root causes using 5-Why and 8D, and lead the CAPA process from root-cause analysis through recurrence prevention.
  • Establish and operate supplier outgoing quality control (OQC) and internal incoming quality control (IQC) criteria; define and monitor key metrics including yield, DPPM, and FFR.
  • Control 4M changes during mass production through the DCR process, manage the process from PCR through ECN and BOM/SOP changes, and lead implementation in mass production after validation.
  • Monitor post-launch quality using FFR, analyze and reproduce field issues to determine their causes, and incorporate improvements into mass-production processes and next-generation product designs.
  • Collaborate with external manufacturing partners and internal hardware, software, quality assurance, and design teams to lead hardware quality throughout the product lifecycle.

Desired Qualifications

  • Experience managing display or camera hardware quality.
  • Experience collaborating on site with global manufacturing partners.
  • Experience in device hardware development and KC certification.

About the Company

Toss

Fintech super-app for payments and banking

Toss is a South Korean financial services platform that started as a peer-to-peer money transfer service and has grown into a digital 'super app' for personal finance. Its products are accessed through one mobile interface that unifies bank accounts, credit cards, loans, investments, and other financial services, including its own Toss Bank and Toss Securities. It differentiates itself by offering a broad, integrated ecosystem—combining digital banking, asset management, and brokerage services under one roof and running its own banking and securities units. Its goal is to become the leading consumer finance platform in South Korea while expanding its user base globally.

Company size
1,001-5,000
Company stage
Series G
Total funding
$1.5B
Headquarters
Seoul, South Korea
Founded
2011

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