「開発」の求人情報

顧客の事業課題を解決する生成AI・機械学習ソリューションの設計、開発、検証、本番導入を一貫して担当します。データサイエンティストやアーキテクトと連携し、LLM／SLMの最適化、分散学習、推論基盤の高性能化を推進するポジションです。

大規模言語モデル（LLM）の安全性・信頼性・セキュリティ向上を目的とした研究開発を担うポジションです。AIリスクの特定から対策技術の開発、社会実装、研究成果の論文化までを推進し、安全な生成AIの実現を目指します。

新規事業およびDXプロジェクトにおいて、技術選定・設計・実装をリードし、プロダクト価値と開発組織の成長を推進するリードエンジニアポジションです。

技術的意思決定やアーキテクチャ設計、全社横断の技術課題解決を担い、事業成果につながるエンジニアリングを実現します。

Join a leading global financial institution as a Full Stack Engineer developing scalable, high-performance web applications that support key business operations. This role offers the opportunity to work across the full development lifecycle while collaborating with international teams in a technology-driven environment.

This role is responsible for developing and maintaining modern web applications across both frontend and backend systems. You will collaborate with cross-functional teams to design, build, test, deploy, and support scalable applications while leveraging AI tools and techniques throughout the development lifecycle.

Join a growing mobile engineering team developing consumer-facing digital products that reach a wide range of users across multiple services. This role offers the opportunity to design, build, and enhance high-quality iOS applications while collaborating with cross-functional teams in an agile environment.

Join a large-scale digital business and contribute to the development, modernization, and operation of critical marketing technology platforms used by internal stakeholders. This role offers end-to-end exposure across architecture, development, deployment, and platform optimization within a collaborative international engineering environment.

Join a large-scale digital transformation team responsible for delivering customer-facing platforms used by millions of consumers. This senior-level opportunity combines hands-on engineering, technical leadership, and cross-functional collaboration across web and mobile application development.

Join a dynamic engineering team responsible for building and maintaining scalable web and mobile applications that support business-critical digital services. This role combines front-end and back-end development, offering the opportunity to work with modern technologies while delivering exceptional user experiences.

金融サービス領域において、与信モデル・リスク管理モデル・マーケティングモデルなどの機械学習システムの設計・開発をリードするポジションです。ビジネス部門やデータサイエンティストと協働しながら、AI活用のアーキテクチャ設計、MLOps改善、プロダクトへの実装まで幅広く担います。

The Application Engineer - Kotlin will play a key role in developing and maintaining software solutions within the Technology & Telecoms industry in Tokyo. This is a temporary position that requires expertise in Kotlin to deliver high-quality applications effectively.

Join a global engineering team responsible for building and maintaining the scalable membership platform that powers a large digital ecosystem used by hundreds of millions of users worldwide. This role focuses on developing high-performance APIs, identity management services, and core platform functionality that enable secure and seamless user experiences.

新設されるデジタルバンクにおいて、高可用性・高信頼性を実現するクラウド基盤の構築・運用を担うSREポジションです。Platform & SREチームの一員として、監視設計、障害対応、パフォーマンス改善、SRE文化の定着まで幅広くリードします。

Join a fast-paced team developing and enhancing a large-scale social media platform used by a diverse user base. This senior-level opportunity combines hands-on front-end leadership with full-stack collaboration to deliver high-quality, scalable, and engaging user experiences.

Join a team developing and enhancing consumer-facing mobile applications that support a large digital services ecosystem. This role offers the opportunity to lead iOS development initiatives, influence technical direction, and deliver high-quality user experiences in a collaborative international environment.

Join a technology team responsible for enhancing large-scale delivery and transportation management systems that support e-commerce logistics operations. This role focuses on frontend development, system improvement, and close collaboration with backend engineers to deliver reliable and scalable solutions.

競輪・オートレースのインターネット投票サービスを展開する急成長テック企業にて、Web版プロダクトのフロントエンド開発を担当いただきます。React・TypeScriptを中心としたモダンな技術環境のもと、機能開発から技術改善、アーキテクチャ刷新まで幅広く関与できるポジションです。

• AIを活用した学習支援サービスおよび教育機関向けプラットフォームのバックエンド開発を担当します。
• 事業拡大に伴う開発体制強化の一環として、品質向上と継続的なプロダクト改善に携わります。

Join a data-focused engineering team responsible for managing critical corporate and merchant master data used across a major digital services ecosystem. You will contribute to the design, development, testing, and operation of scalable data platforms while collaborating with experienced engineers on business-critical solutions.

Join a data-driven organization where product master data powers search, discovery, and business operations across a large-scale digital ecosystem. This role offers end-to-end ownership of data infrastructure and applications, with opportunities to contribute to system design and technical decision-making.

Join a data engineering team building a large-scale analytics platform that enables data-driven decision-making through advanced data processing and modern AI technologies. This role focuses on developing scalable data pipelines, ensuring data quality, and delivering reliable analytics solutions that support business growth.

Join a high-performing engineering team responsible for building and enhancing large-scale membership and identity platforms used across a global digital ecosystem. This role combines solution design, software development, stakeholder collaboration, and technical leadership to deliver reliable and scalable applications.

Join a fast-paced engineering team developing real-time fraud prevention systems that protect users and businesses from evolving threats. This role focuses on building and maintaining scalable microservices, improving platform reliability, and delivering secure, high-performance backend solutions.

国内最大級のWebベースID決済サービスの開発に携わっていただくポジションです。

Join a high-impact Site Reliability Engineering team responsible for ensuring the reliability, scalability, and performance of a large-scale real-time analytics platform used across multiple digital services. This role combines cloud infrastructure, DevOps, data platform engineering, and AI-driven automation to improve developer productivity and system reliability at scale.

航空業界を代表する大手企業向けに、データ活用基盤の構築プロジェクトへ参画いただくバックエンドエンジニアポジションです。Java（Spring Boot）とPostgreSQLを活用し、データ統合・API開発・イベント通知機能を通じて業務変革を推進していただきます。

Join a critical engineering team responsible for building and maintaining core backend systems that power one of the largest e-commerce platforms in the world. This role focuses on developing high-performance APIs, order processing systems, and data services while ensuring reliability, scalability, and seamless customer experiences.

技術部門でのポジションを担当し、テクノロジー分野における業務を推進していただきます。勤務地は東京都千代田区で、テクノロジー業界における役割です。

Join a data-driven engineering team responsible for building and maintaining master data platforms that enable accurate product information management and enhanced search experiences. This role offers end-to-end ownership of data infrastructure, ETL pipelines, and data products while leveraging modern cloud technologies and large-scale data processing frameworks.

Join a team responsible for developing and operating BFF (Backend for Frontend) services and APIs that support one of the largest e-commerce platforms in Japan. This role offers the opportunity to drive technical decisions, solve complex scalability challenges, and lead engineering initiatives across the full software lifecycle.