Yield Improvement Engineer / 歩留まり改善エンジニア

Job Requirements

At Quest Global, it’s not just what we do but how and why we do it that makes us different. With over 25 years as an engineering services provider, we believe in the power of doing things differently to make the impossible possible. Our people are driven by the desire to make the world a better place - to make a positive difference that contributes to a brighter future. We bring together technologies and industries, alongside the contributions of diverse individuals who are empowered by an intentional workplace culture, to solve problems better and faster.

［業務内容］Key Responsibilities

半導体製造の最前線で、品質と歩留の革新を主導していただく

1. システム開発・構築

品質向上や歩留改善を実現するための、新たなシステムの開発および機能拡張

Webアプリケーション開発を含む、使いやすいデータ分析・管理I/Fの構築

2. 運用・改善

開発したシステムの安定的な運用管理、性能改善

ユーザー部門からのフィードバックを元にしたがった継続的な改善

3. ユーザーサポート・要件定義

ユーザー部門と密に連携し、潜在的な課題や要求をヒアリング

ユーザー要件を具現化し、実現可能なシステム仕様に落とし込む要件定義

At the forefront of semiconductor manufacturing, lead innovation in quality and yield.

1.System Development and Construction

Development and functional expansion of new systems to achieve quality and yield improvements

Building user-friendly data analysis and management I/F, including web application development

2. Operation and Improvement

Stable operation management and performance improvement of developed systems

Continuous improvement based on feedback from the user department

3. User Support and Requirements Definition

Work closely with the user department to listen to potential challenges and requests.

Requirements definitions that embody user requirements and translate them into feasible system specifications

［ポジションの魅力］ Attractive Points of the position

最先端ノード（2nm世代）の開発に携わることができる

立ち上げフェーズならではの技術選定・開発

グローバルで通用する半導体技術者スキル

You can be involved in the development of cutting-edge nodes (2nm generation)

Technology selection and development unique to the launch phase

Be part of the globally recognized semiconductor engineering skills

We are known for our extraordinary people who make the impossible possible every day. Questians are driven by hunger, humility, and aspiration. We believe that our company culture is the key to our ability to make a true difference in every industry we reach. Our teams regularly invest time and dedicated effort into internal culture work, ensuring that all voices are heard.

We wholeheartedly believe in the diversity of thought that comes with fostering a culture rooted in respect, where everyone belongs, is valued, and feels inspired to share their ideas. We know embracing our unique differences makes us better, and that solving the worlds hardest engineering problems requires diverse ideas, perspectives, and backgrounds. We shine the brightest when we tap into the many dimensions that thrive across over 21,000 difference-makers in our workplace.

Work Experience

［応募条件］ Requirements

必須要件 Must Have

※経験年数：3 年以上

ユーザー要件と正確に理解・把握し、システム仕様にまとめ、実現するシステム開発経験

データ解析ソフト(Spotfire, JMPなど)を用いたアプリケーション開発および活用経験

Python, Rなどを用いたデータ解析、およびアプリケーション開発経験

Web技術を用いたアプリケーション開発経験

SQLを用いたデータ操作、データ抽出などの実務経験

Python、Spotfire、SQLを用いたデータ解析、およびアプリケーション開発スキル

Excel: 中級レベル以上

その他: PC操作スキル（中級レベル）

Required years of experience ： 3+ year

Experience in system development that accurately understands and grasps user requirements, compiles them into system specifications, and implements them

Experience developing and utilizing applications using data analysis software (such as Spotfire, JMP)

Experience in data analysis and application development using Python, R, etc.

Experience in application development using web technologies

Practical experience in data manipulation and data extraction using SQL

Data analysis and application development skills using Python, Spotfire, and SQL

Excel: Intermediate level or higher

Other: PC Operation Skills (Intermediate Level)

尚可要件 Good to Have

半導体業界経験や、同様の製造業における品質・歩留まり改善システムの開発経験

Rを用いたデータ解析スキル

Webアプリケーションの開発スキル

Experience in the semiconductor industry and experience developing quality and yield improvement systems in similar manufacturing industries

Data Analysis Skills Using R

Web application development skills

語学力 Language Skill

英語‐ TOEIC 500 以上、もしくは同等程度（尚可）

日本語‐ JLPT N2 以上

English – TOEIC 500 or above, or equivalent (preferred)

Japanese – JLPT N2 or above

[待遇・福利厚生]

昇給年1回 ※契約社員は更新のタイミングで見直しあり

通勤手当（上限2万円/月）

給与詳細：完全年俸制（1/12を毎月支給）

残業手当

各種社会保険完備

・ 厚生年金

・ 健康保険（TJK : 東京都情報サービス産業健康保険組合）

・ 雇用保険

・ 労働者災害補償保険

健康診断（被扶養者健康診断、人間ドック、婦人科健診など）

65歳定年制 ※役職定年なし

社内研修制度（オンライン）

試用期間3ヶ月、業務・待遇変更なし

受動喫煙防止対策：あり（屋内禁煙）

[Welfare]

Salary increment once a year

Commuting allowance (up to 20,000/month)

Salary details: Full annual salary system (1/12 paid monthly)

Overtime allowance

Equipped with various social insurance

・ Welfare pension

・ Health insurance (Tokyo Information Service Industry Health Insurance Association)

・ Employment insurance

・ Worker's Accident Compensation Insurance

Health checkup (health checkup for dependents, medical checkup, gynecological checkup, etc.)

Retirement age is 65 years old *No retirement age for positions

Referral recruitment system (with benefits)

In-house training system (online)

Trial period: 3 months, no change in duties or benefits

Measures to prevent passive smoking: Yes (no smoking indoors)

[休日休暇]

年間休日120日以上

完全週休2日制（土・日）

祝日

年末年始休暇

有給休暇

産前産後休暇

育児休暇

介護休暇

忌引休暇

※常駐先の業務にともなって休日・休暇は変動の可能性があります。すべて大手メーカーのため、年次休暇などは充実している場合がほとんどです。

[Vacations]

Total holidays: over 120 days off per year

2-day weekend system (Saturday and Sunday)

National Holidays

New Year holidays

Paid vacation

Prenatal and post-natal leave

Childcare leave

Nursing care leave

Bereavement leave

Holidays and vacation days may change depending on the work place you are stationed. Since they are all major manufacturers, most have generous annual vacations