
Reaktor · Tokyo
ABOUT REAKTOR Reaktor is a global creative technology partner that helps industry leaders build a better future. Founded in Finland, we combine premium softwar...
Reaktor is a global creative technology partner that helps industry leaders build a better future. Founded in Finland, we combine
premium software engineering, strategic design, and robust data capabilities to solve high-stakes business challenges for global
brands like Adidas and Finnair, as well as major enterprises in Japan.
At Reaktor, we have no traditional hierarchy or middle management. We operate on a foundation of absolute trust, immense autonomy,
and a shared passion for high-quality engineering.
make the best decisions. However, this high degree of freedom means you take full ownership and responsibility for the
outcomes.
encourage experimenting, taking the initiative, and learning fast from the results.
As a Senior Technical Lead at Reaktor Japan, you will be the cornerstone of our engineering excellence and agile delivery. You
will work closely with our clients, leading cross-functional teams to architecture and implement robust, scalable systems.
We are a technology-agnostic company—we don’t stick to a single stack. Instead, we select the best tools for the specific business
problem. You will cross boundaries between frontend, backend, and DevOps as required by the project.
high-context communication styles is required to lead client-facing engagements successfully. (Professional English proficiency
is a big plus for collaborating with our global teams).
combined with hands-on implementation skills.
counseling support, and continuous learning budgets.
1. Casual Sync: An introductory chat to share mutual expectations.
2. Attitude & Soft Skills Interview: A conversational dive conducted by the Japan team (in Japanese) focusing on cultural
alignment, autonomy, and collaboration styles.
3. Technical Round / Design Assignment: An interactive, workshop-style architectural discussion with two of our local developers.
4. Final Round (Business & Tech Deep-Dive): A scenario-based tech session with Finland's Business Unit Lead Consultants and the
CEO of Reaktor Japan.
5. Closing / Offer Session
Reaktorは、フィンランド発のグローバルなテクノロジーコンサルティングファームです。 北欧らしいフラットな組織文化を通じて高度な専門スキルとノウハウを持つコンサルタントがチームとして協力し、自律的にクライアントとユーザーに価値を生む成果を上げます。 デジタル x デザイン x ビジネスを融合させ、クライアント企業のデジタルサービスを成功に導くコンサルティングサービスを提供しています。 現在弊社では、日本オフィスのさらなる成長に向け、シニア・テクニカルリードを募集しております。 日本のIT業界でユーザー中心のアジャイル開発を一緒に実践しませんか? 開発環境とエンジニアリングの考え方: * 多様な技術習得: 多様なプロジェクトを通じて、「ポリグロット・エンジニア」としての成長を支援します。 * 実績(Our Work):グローバルブランドの変革を最先端の技術で支える Reaktorは、業界のリーダーたちが「本質的な成長」を必要とする際に選ぶパートナーです。私たちが手がけるのは、単なる受託開発ではなく、クライアントのビジネスの核心に触れる高難度なプロジェクトばかりです。 * グローバル・リテール: Adidasのデジタル体験を支える、スケーラブルなプラットフォーム構築。 * 航空・インフラ: Finnairのカスタマージャーニーを再定義する、UXと技術の融合。 * 日本国内プロジェクト: 国内大手企業とともに、レガシーな環境をモダンなアーキテクチャへと刷新し、アジャイルな組織文化への変革をリードしています。 「技術で何を実現できるか」の全貌は、こちらで公開しています。 私たちは、特定の技術に縛られることなく、課題に対して常に最適なスタックを選択します。エンジニアとして、どのようにビジネス価値を創出しているのか、その具体的なストーリーをぜひご覧ください。 👉 Reaktor Work - ケーススタディを見る * フラットで透明な組織: 階層を最小限におさえ、意思決定のプロセスや経営状況がオープンな組織です。階層に関係なく自由な意見交換が可能な環境が整っています。 * 「自由と責任」を軸にした自律的(Autonomous)なチーム: Reaktorには「管理」という概念がほとんどありません。個人が自分で考え、最善と思う行動をとることが推奨されます。 ただし、これは「自由と責任は表裏一体」であると考えているからです。高い自由度は、自らの行動に責任を持ち、プロフェッショナルとして成果を出すことへの信頼の上に成り立っています。この「自由を楽しみ、責任を果たす」マインドセットこそが、私たちの成長の原動力です。 * "Do first, apologize later"の精神:私たちのモットーの一つに "Do first, apologize later" があります。完璧な計画を待って停滞するよりも、まずは行動し、そこから学ぶことを尊びます。失敗を恐れず、自らの判断でスピーディーに動ける環境がここにはあります。 求める人物像 このポジションで特に期待されるのは、単に手を動かして実装することだけではありません。クライアントと同じチームの一員として、プロダクト開発を成功に導く役割を担っていただきます。 そのため、以下のような仕事をこなせる力と姿勢が求められます。 * 技術的な内容を、相手の立場や関心に合わせて分かりやすく説明 * クライアントの背景(事業、組織、文化、制約など)を理解したうえで現実的に提案 * 多様な関係者(経営層、事業部門、プロダクト、デザイン、開発チームなど)と会話し合意形成に導く * ユーザー中心のアジャイル開発をクライアントと一緒に実践 特に日本の大企業では、技術的な不確実性や失敗リスクを避けようとするあまり、開発プロセスが重くなったり、すべてを事前に決めようとしたりすることがあります。私たちはそうした背景を理解しながら、小さく試しながら学び、改善していくアジャイル開発の価値を伝え、クライアント自身もレベルアップする手助けをします。 また開発観点からプロジェクトをリードするポジションであるため、開発にも貢献できることは必須です。開発自体もリードできる技術と経験があればさらにプラスです。 特定の開発言語やバックグラウンドは問いません。以下の2点を重視します。 * 高品質な設計・コードへの深い理解と実装技術: 「何が良いコードか」を理論と経験の両面から理解し、高いクオリティのシステムを構築できること。 * 謙虚さ: 他者からも学び、互いを高め合おうとする姿勢。また自主的に新しいことを学んでいける好奇心。 開発環境・業務内容 プロジェクトの状況に応じて、バックエンド、フロントエンド、DevOpsなど、境界を作らずに必要とされる領域を担当します。 * 最近の主な技術スタック: * Web app: TypeScript, React * Mobile app: iOS (Swift + UIKit/SwiftUI) * Backend: Node.js, Golang, Python, PostgreSQL, Redis * Infra: AWS, Azure, GCP, Akamai, Terraform, Jenkins * Tools: Git/GitHub, Miro, Docker, shell scripting * 歓迎するスキル・経験: * 関数型プログラミング言語経験 * 複雑なシステム設計能力 * 大規模アプリケーションの開発・運用経験 * ゲーム開発経験 言語: * 日本語:Native/Bilingual * 英語:Working proficiency 勤務地:恵比寿 * 抜群のアクセス: JR山手線・埼京線・湘南新宿ライン、東京メトロ日比谷線の4路線利用可。 * 感性が磨かれる街:落ち着いた大人の雰囲気と、最先端のカルチャーが融合する恵比寿。緑豊かなガーデンプレイスまでは徒歩3分。こだわりのカフェが点在し、リフレッシュ環境も充実し、社内交流も活発になります。 * 「仕事の生産性」と「プライベートの充実」を最高レベルで両立できる街です。 福利厚生 * 関東ITソフトウェア健康組合の充実した福利厚生プラン * Office Glico * 年次有給休暇20日付与・消化を積極的に奨励 * Tokyo Mental Healthによる多言語カウンセリングの提供 企業文化・職場環境 * 多国籍・多文化が共存する多様性に富んだ刺激的な環境(現在9カ国) * お互いを思いやり尊重する信頼の上に成り立つチームワーク * 人間工学に基づき身体に良いオフィス家具 給与 直接会って話す、オンラインで話す時に詳細を伝える GPTW * 「働きがいのある会社」Great Place To Work [GPTW] 認定企業 * ワークライフバランスが奨励されている * 仕事に行くことが楽しみである * 能力開発の機会が与えられている * 認定実績3回(2023年2024年2025年)
Req ID: FEQ427R117 Location: Tokyo, Japan At Databricks, our core values are at the heart of everything we do; a culture of proactiveness and customer‑centricity guides us to build a unified platform that makes data and AI accessible to everyone. In Japan Financial Services, we help leading banks, insurers, securities firms, payment providers, and asset managers turn data into a strategic asset – improving customer experience, strengthening risk management, and driving profitable growth. You will be the senior technical leader for a set of strategic FSI accounts in Japan, using your executive‑level technical credibility and Financial Services expertise to shape and execute their data and AI strategy. Reporting to: Manager, Field Engineering – Financial Services, Japan THE IMPACT YOU WILL HAVE * Own technical strategy for key FSI customers in Japan, defining the target architecture and roadmap for their Databricks lakehouse and AI platform. * Lead high‑impact evaluations and designs for priority FSI use cases (e.g., fraud/AML, risk, regulatory reporting, SIEM, Hyper Personalization, trading and investment analytics). * Connect architecture to outcomes, showing how Databricks reduces risk, improves efficiency, and unlocks new revenue, then using those wins to drive broader expansion. * Shape the ecosystem, working closely with cloud providers, global/local SIs, and fintech partners to deliver end‑to‑end solutions on Databricks. * Raise the bar regionally, mentoring other Solutions Architects and contributing reusable reference architectures, patterns, and customer stories for Japan FSI. WHAT WE LOOK FOR * 10+ years in data platforms, analytics, or cloud architecture, including 6+ years working with large Financial Services institutions in Japan. * Proven ability to influence C‑level and director‑level stakeholders (CIO, CDO, CRO, heads of data/AI) and lead high‑stakes technical discussions in Japanese. * Deep hands‑on background in at least one area: Data Engineering, Data Warehousing/Analytics, AI/ML, or Cloud Architecture, with a strong architecture / platform focus. * Experience designing data and analytics solutions for FSI use cases (e.g., risk, fraud/AML, regulatory reporting, SIEM, customer analytics, or trading/investment). * Strong understanding of Japan FSI landscape, including typical organization structures, how decisions are made, and the role of SIs and cloud providers. * Outstanding communication and storytelling skills, able to explain complex architectures to both technical teams and senior business stakeholders. * Language: Native‑level Japanese and business‑level English. If you’re excited about helping Japan’s Financial Services use data and AI to deliver better outcomes – while setting the technical bar for our GTM in Japan – we’d love to hear from you. About Databricks Databricks is the data and AI company. More than 10,000 organizations worldwide — including Comcast, Condé Nast, Grammarly, and over 50% of the Fortune 500 — rely on the Databricks Data Intelligence Platform to unify and democratize data, analytics and AI. Databricks is headquartered in San Francisco, with offices around the globe and was founded by the original creators of Lakehouse, Apache Spark™, Delta Lake and MLflow. To learn more, follow Databricks on Twitter, LinkedIn and Facebook. Benefits At Databricks, we strive to provide comprehensive benefits and perks that meet the needs of all of our employees. For specific details on the benefits offered in your region click here. Our Commitment to Diversity and Inclusion At Databricks, we are committed to fostering a diverse and inclusive culture where everyone can excel. We take great care to ensure that our hiring practices are inclusive and meet equal employment opportunity standards. Individuals looking for employment at Databricks are considered without regard to age, color, disability, ethnicity, family or marital status, gender identity or expression, language, national origin, physical and mental ability, political affiliation, race, religion, sexual orientation, socio-economic status, veteran status, and other protected characteristics. Compliance If access to export-controlled technology or source code is required for performance of job duties, it is within Employer's discretion whether to apply for a U.S. government license for such positions, and Employer may decline to proceed with an applicant on this basis alone.
Req ID: FEQ427R279 Location: Tokyo, Japan At Databricks, our core values are at the heart of everything we do; a culture of proactiveness and customer‑centricity guides us to build a unified platform that makes data and AI accessible to everyone. In Japan Public Sector, we help central ministries, agencies, local governments, and public institutions use data and AI to deliver better, more trusted services to citizens. You will be the senior technical leader for a set of strategic public sector accounts in Japan, using your executive‑level technical credibility and government expertise to shape and execute their data and AI strategy. Reporting to: Director, Field Engineering, Japan The impact you will have * Own technical strategy for key Japan public sector customers, defining the target architecture and roadmap for their Databricks‑based data and AI platform. * Lead solution design for priority government use cases (e.g., citizen 360 and eligibility, program analytics, smart infrastructure, cybersecurity, fraud/waste/abuse). * Design for security and compliance, ensuring architectures meet public sector expectations on data residency, access control, governance, and auditability. * Turn pilots into platforms, linking Databricks to visible mission outcomes and using those wins to drive expansion across bureaus, departments, and levels of government. * Influence the ecosystem, collaborating with SIs, cloud providers, and public sector partners to deliver integrated, production‑grade solutions on Databricks. * Mentor others, coaching Solutions Architects and partners on how to work effectively with Japan public sector stakeholders and patterns on the Databricks platform. What we look for * 10+ years in data platforms, analytics, or cloud architecture, including significant experience with public sector organizations in Japan. * Proven ability to build trust with senior government stakeholders (CIO, CDO, chief architect, bureau/department leaders) and lead high‑stakes technical discussions in Japanese. * Strong technical background in Data Engineering, Data Warehousing/Analytics, AI/ML, or Cloud Architecture, with a focus on solution design and platforms. * Experience architecting data and analytics solutions for public sector use cases (e.g., citizen services, program analytics, public safety, infrastructure, or cybersecurity). * Deep familiarity with Japan public sector decision‑making and delivery models, including how SIs and cloud providers support government projects. * Excellent communication skills, able to translate mission and policy needs into clear technical approaches and explain them to both technical and non‑technical audiences. * Language: Native‑level Japanese and business‑level English. If you’re excited about helping Japan’s Public Sector use data and AI to deliver better outcomes – while setting the technical bar for our GTM in Japan – we’d love to hear from you. About Databricks Databricks is the data and AI company. More than 10,000 organizations worldwide — including Comcast, Condé Nast, Grammarly, and over 50% of the Fortune 500 — rely on the Databricks Data Intelligence Platform to unify and democratize data, analytics and AI. Databricks is headquartered in San Francisco, with offices around the globe and was founded by the original creators of Lakehouse, Apache Spark™, Delta Lake and MLflow. To learn more, follow Databricks on Twitter, LinkedIn and Facebook. Benefits At Databricks, we strive to provide comprehensive benefits and perks that meet the needs of all of our employees. For specific details on the benefits offered in your region click here. Our Commitment to Diversity and Inclusion At Databricks, we are committed to fostering a diverse and inclusive culture where everyone can excel. We take great care to ensure that our hiring practices are inclusive and meet equal employment opportunity standards. Individuals looking for employment at Databricks are considered without regard to age, color, disability, ethnicity, family or marital status, gender identity or expression, language, national origin, physical and mental ability, political affiliation, race, religion, sexual orientation, socio-economic status, veteran status, and other protected characteristics. Compliance If access to export-controlled technology or source code is required for performance of job duties, it is within Employer's discretion whether to apply for a U.S. government license for such positions, and Employer may decline to proceed with an applicant on this basis alone.