746,581open jobs
44,818companies
107,195added this week
Browse all
Salary
≈ $45k – $116k 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.

Description / 職務内容

We are looking for an engineer to join the verification team for the MN-Core™ series.

At PFN, we are developing and deploying the latest generation of the MN-Core series. Because modifying an ASIC design becomes extremely difficult as development progresses, hardware designs written in HDL must be thoroughly verified through software to ensure that they conform to the specifications.

In this position, you will be involved in this verification process. Specific software development responsibilities include:

- Implementing programs to verify new architectures

- Implementing assemblers and software simulators for new architectures

- Implementing high-performance application kernels for new architectures

- Developing and maintaining verification environments and CI infrastructure

- Bringing up new chips and evaluating samples

In addition to these core responsibilities, you may also contribute to areas such as defining hardware specifications, depending on your interests and aptitude.

MN-Core™シリーズの検証チームに加わるエンジニアを募集しています。

PFNでは、最新世代のMN-Coreシリーズの開発・活用を進めています。ASIC設計では開発段階が進むと設計の修正が非常に困難になるため、HDLで記述されたハードウェア設計が仕様に従っているかをソフトウェア的に入念に検証する必要があります。

本ポジションでは、この検証工程に携わっていただきます。具体的なソフトウェア開発業務としては以下が含まれます:

- 新規アーキテクチャ検証用プログラムの実装

- 新規アーキテクチャ用アセンブラ・ソフトウェアシミュレータの実装

- 新規アーキテクチャ用高性能アプリケーションカーネルの実装

- 検証用環境・CIの整備

- 新規チップ立ち上げ作業・サンプル評価

これらの主要業務に加え、ご自身の興味や適性に応じてハードウェア仕様策定などにも関わっていただけます。

What makes this position appealing / 本ポジションの魅力

PFN develops everything in-house, spanning the full technology stack from AI applications to accelerators. Chip verification is a critical step in bringing the MN-Core series to market quickly. In this position, you will work with experts across a wide range of fields and play a key role in the development and application of cutting-edge AI accelerators.

PFNではAIアプリケーションからアクセラレータまでを縦断的に自社開発しています。チップ検証はMN-Coreシリーズを素早くビジネス投入するうえで鍵を握る工程であり、本ポジションでは広範な分野のエキスパートと協働しつつ最先端のAIアクセラレータの開発と活用に深く関わることができます。

Portrait of a person / 求める人物

- Individuals with broad interests and a desire to acquire knowledge in new technical domains

- Colleagues who can respect and work well together, regardless of job role or background

- Those who can leverage their strengths and support team members

- Individuals who can approach problem-solving as their own responsibility, regardless of ownership

- People who can absorb new knowledge and enjoy working in environments with diverse expertise

- 様々な分野への関心、新たな技術領域の知見獲得の意欲のある方

- 同職種・他職種に関わらずリスペクトして一緒に楽しく働ける方

- 強みを活かして、チームメンバと助け合える方

- 周りの課題に対しても自分事として捉え課題解決を推進できる方

- 様々な専門性を持つ人がいる環境で新しいことを吸収し、楽しめる方

Requirements / 応募条件

##### Required qualifications / 必要な条件

- Basic understanding of computer science at university undergraduate level

- Openness to work in an English-Japanese-mixed environment

- 大学学部レベルのコンピュータサイエンスについての基礎的な理解

- 英語と日本語が混在する環境での業務に柔軟に対応できること

---

##### Preferred qualifications / 望ましい条件

- Assembly-level programming skills

- Experience defining semiconductor architectures

- Experience implementing RTL

- Knowledge of state-of-the-art LLM architectures

- Ability to read technical documentation/discussions in Japanese.

- アセンブリレベルでのコーディング技術

- 半導体アーキテクチャ策定の経験

- RTL実装の経験

- 先端のLLMアーキテクチャの知識

- 日本語の技術文書/ディスカッションを読み解く能力

Reference Links / 参考情報

[MN-Core Series Deep Learning Accelerators (en)](https://projects.preferred.jp/mn-core/en/)

[MN-Core Series Deep Learning Accelerators (jp)](https://projects.preferred.jp/mn-core/)

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

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)

Free account
Stop reading job ads. Get the ones that fit.
One free account turns this page into a shortlist built around your stack, your level and your pay.
Match on every job. Stack, seniority, pay and location, scored against your profile.
746,581 open roles. Read straight off company career pages, refreshed every day.
Unlimited applications. Every one you send is tracked in one place, on-site or on a company board.
3 tailored CVs a month. Rewritten for the exact job you are applying to. Included free.
Create a free account Continue with Google
Free forever. No card. Under a minute.

Your match

How well do you fit this role?
Two answers are enough for a real match. No account needed.
Check my fit
Answers stay in this browser until you create an account.

Recommended for you based on this role

Hardware
Similar stack
Same company
Tokyo
≈ $38k – $99k per year (Estimated) • In office
Apply
≈ $40k – $102k per year (Estimated) • In office
C++
DevOps
RTOS
Linux
Robotics
EtherCAT
PID Control
Apply
≈ $38k – $99k per year (Estimated) • In office
Apply
≈ $40k – $102k per year (Estimated) • In office
C++
DevOps
RTOS
Linux
Robotics
EtherCAT
PID Control
Apply
≈ $41k – $106k per year (Estimated) • In office • Tokyo
Apply
Hybrid • Full-Time • Bachelor's Degree • Noida
AI/ML
AI Agents
Edge AI
Apply
≈ $58k – $122k per year (Estimated) • In office • 8+ years exp • Taipei
AI/ML
Edge AI
Recommender Systems
Analytics
A/B Testing
Design
Figma
Management
Confluence
Jira
Agile
Scrum
Kanban
Apply
≈ $46k – $97k per year (Estimated) • Hybrid • Full-Time • 8+ years exp • Hyderabad
Python
AI/ML
Embeddings
Reinforcement Learning
Function Calling
AI Agents
LLM
RAG
Reranking
Hybrid Search
Context Engineering
LLM Guardrails
Edge AI
Multi-Agent Systems
Tool Use
Cybersecurity
GDPR
Management
Agile
Apply
≈ $56k – $117k per year (Estimated) • Hybrid • 8+ years exp • Bengaluru
Python
AI/ML
Embeddings
Reinforcement Learning
Function Calling
AI Agents
LLM
RAG
Reranking
Hybrid Search
Context Engineering
LLM Guardrails
Edge AI
Multi-Agent Systems
Tool Use
Cybersecurity
GDPR
Management
Agile
Apply
≈ $95k – $227k per year (Estimated) • In office • Full-Time • PhD • Ballerup
AI/ML
Edge AI
Machine Learning
Apply
≈ $38k – $99k per year (Estimated) • Hybrid • Full-Time
AI/ML
InfiniBand
Apply
≈ $43k – $112k per year (Estimated) • Hybrid • Full-Time • Tokyo
C++
DevOps
HPC
Apply
≈ $50k – $108k per year (Estimated) • Hybrid • Full-Time • 8+ years exp • Tokyo
Verilog
SystemVerilog
VHDL
SystemC
AI/ML
Machine Learning
DevOps
Git
GitHub
GitLab
Apply
≈ $42k – $109k per year (Estimated) • Hybrid • Full-Time • Tokyo
Python
C++
AI/ML
NumPy
Machine Learning
DevOps
GitHub
Apply
$457k – $915k per year • In office • Contractor • Master's Degree • Tokyo
Python
AI/ML
LLM
Machine Learning
Apply
新卒採用 8 hours ago
In office • Full-Time • Tokyo
Apply
In office • Full-Time • Tokyo
Apply
In office • Full-Time • Tokyo
Java
PHP
C++
Apply
In office • Full-Time • Tokyo
Game Dev
Unreal Engine
Houdini
Substance 3D Designer
Design
ZBrush
Substance 3D Painter
Apply
≈ $35k – $94k per year (Estimated) • In office • Full-Time • Tokyo
Apply
See all jobs
This is one of many
746,581 more open roles from verified company boards, updated every day.