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Salary
≈ $35k – $96k per year (Estimated)
Location
Hybrid (Tokyo, Japan)
Employment
Full-Time

Confirmed on the employer's own hiring board on Sep 24, 2026. First seen by Alion on Sep 24, 2026.

Overview
Company
Impact
Profile match
Preferred Networks is a Japanese artificial intelligence company founded in Tokyo in 2014 and long regarded as the country's most technically ambitious AI startup. It created Chainer, one of the first define-by-run deep learning frameworks and an influence on the design of modern autograd systems, and has since built a full vertical stack from its own MN-Core accelerator silicon up to foundation models. The company applies that stack to manufacturing, robotics, materials science through the Matlantis simulator and healthcare, working closely with Japanese industrial partners including Toyota, Fanuc and Hitachi.

Job Description / 職務内容

エンタープライズ向けバックエンドエンジニアは、PFNにおいて顧客企業に向けたバックエンドの開発・運用を行うポジションです。

PFNは、多様な産業分野に属する顧客企業と協業して課題解決に取り組み、現実の課題に即した高価値なコンサルティングを行っています。エンタープライズ向けバックエンドエンジニアとして、最先端の技術を最短路で実用化するというPFNのミッションを実現するべく、PFNの研究開発成果を顧客に対して安定的・現実的な形で継続的にリリースする仕事です。プロジェクトの価値を理解し、顧客が真に必要としている機能やインターフェースを洞察することが期待されます。

Qualifications / 応募資格(必須)

- AWSやGCPなどのクラウドサービスを用いたシステムの開発経験

- 最新の技術に常にキャッチアップし続けていること

- 未知のジャンルに対しても興味を持って学ぼうとする姿勢

- ソフトウェア開発経験 (Python, Go, C, C++, Java, 等)

- チームでの課題解決の経験

- ビジネスレベルの日本語能力(日本語非母語話者においては JLPT 試験で N1 レベル相当)

Preferred Qualifications / 応募資格(歓迎)

- Vue, React など1つ以上のフレームワークを用いたフロントエンド開発経験

- 顧客へのヒアリングを通じて課題を整理し問題解決へ導いた経験および実績

- コンピューターサイエンスのすべての分野への精通を目指し、常に最先端の技術を追いかけ続けていること

- 機械学習に関する研究または実務の経験および実績

- プロダクト価値や UX を意識したサービス開発の経験および実績

- サービス・システム開発に関する、以下のいずれかの実績・経験を歓迎します。未経験であっても、業務の中で成長しながら一緒に開発できる方を歓迎します。

- CI/CDを利用したデプロイの自動化、Terraform、AWS CDK、GCP Deployment Managerを利用したインフラの運用経験

- サーバーやWeb・アプリのサービス運用経験

- クラウド・オンプレにおけるネットワーク設計・運用経験

- データベース設計、レビュー経験

- 外部ベンダーとのシステム連携経験

- サービス開発についての開発支援・メンタリング経験

Salary /賃金

経験、業績、能力、貢献に応じて、当社規定により優遇

Experience, performance, skills, contribution are taken into consideration.

Location / 勤務地

東京都千代田区大手町1-6-1 大手町ビル / Otemachi Bldg., 1-6-1 Otemachi, Chiyoda-ku, Tokyo, Japan 100-0004

リモート勤務制度あり (日本国内に限る) / Remote work system available (limited to work in Japan)

Work style / 勤務形態

専門労働型裁量労働制(みなし労働時間:8時間)もしくはフレックス制

Discretionary-work (deemed work hours: 8 hours) or Flex-time system

ハイブリッド勤務(オフィス出社と在宅勤務を組み合わせての勤務)

Hybrid work (Combination of working from the office and working from home)

Salary increase & bonus / 昇給・賞与

年2回の人事評価及び会社業績に基づいて決定

Based on the result of a individual performance review (twice a year) and company’s performance

Allowances / 諸手当

通勤手当、在宅勤務手当

Commutation allowances / teleworking allowances

Holidays / 休日・休暇

休日:土曜日、日曜日、国民の祝日、国民の休日、年末年始

当社規定による年次有給休暇制度(入社時26日付与)

育児休暇、慶弔休暇など

Holiday: Saturdays and Sundays, public holidays, Year-end and new-year

Annual paid leave based on company regulations (26 days granted upon hire)

Parental leave, conguratulation / condolence leave etc.

Welfare / 福利厚生

社会保険完備(厚生年金保険、健康保険、雇用保険、労災保険)

確定拠出年金制度

ラップトップPC購入補助

定期健康診断実施

Various social insurance programs: pension insurance, health insurance, employment insurance, workers’ compensation

Defined contribution pension

Allowance for purchasing a laptop PC

Regular health checks

Employment Status / 雇用形態

正社員(試用期間3ヶ月、本採用と同条件)

Full-time regular employment (3 months of probation period under the same condition as regular employment)

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