「開発」の求人情報

AIプロダクトおよびITシステムの上流SEとして、構想策定・要件定義・基本設計・運用設計を主導し、本番導入まで推進するポジションです。

顧客との合意形成やプロジェクト推進を担いながら、AIを活用した社会インフラ領域の課題解決を実現します。

AIとアプリケーションをつなぐAIシステムアーキテクトとして、AIエンジン搭載システムの全体設計・アーキテクチャ開発を主導するポジションです。

生成AIや機械学習、数理最適化などの技術を活用しながら、次世代の開発プロセス構築や技術戦略策定にも関与します。

• 顧客の事業・業務課題を理解し、生成AIや機械学習を活用したソリューションの企画・設計・実装を担います。
• 自社プラットフォーム活用と個別開発を組み合わせながら、価値検証から運用改善まで推進します。

Join a large-scale technology organization that powers payment and incentive platforms used across a diverse digital ecosystem. As a Software Engineer, you will contribute to the development, operation, and continuous improvement of secure, scalable, Java-based payment solutions.

Join a global algorithmic trading team to develop and enhance Java-based execution platforms used by front-office trading teams. You'll work across the full development lifecycle, collaborate closely with Quants, and support high-performance, real-time trading applications in a global environment.

Develops and enhances a high performance electronic trading platform, delivering new features, system improvements, and ongoing support. Requires strong Java development experience, ideally within algorithmic trading and distributed systems environments

This role leads technical feasibility, high-level design, and architecture standards for a large-scale API and API Gateway platform. You will guide engineering teams through clear technical specifications, code reviews, and hands-on contributions to elevate system quality and scalability.

Seeking an experienced Mainframe Specialist with deep expertise in insurance Policy Administration Systems, mainframe modernization, and hybrid architecture design across IBM Mainframe and open environments. The role requires strong technical leadership, stakeholder management, and global project delivery experience to drive large-scale transformation and modernization initiatives from strategy through execution.

This role leads server-side design and development for a newly launched consumer fintech service, delivering high-quality, scalable APIs and batch systems. You will collaborate across teams to ship impactful features used by thousands of users while driving engineering excellence.

Application Engineer responsible for designing, developing, and maintaining Java-based payment APIs and microservices, with a focus on scalability, security, and performance. Requires strong Java, Spring Boot, SQL, REST API, and microservices experience, along with business-level English communication skills.

Join a high-impact engineering team building secure, scalable payment APIs used across a global digital ecosystem. You will contribute end-to-end across design, development, and operation of Java-based microservices in a fast-paced, collaborative environment.

Join a collaborative engineering team delivering enterprise solutions for the insurance industry. You will work across the full development lifecycle, gaining exposure to architecture, business processes, and modern technologies.

Join a global engineering team to build modern, scalable web applications using React and TypeScript. This role offers an English-first working environment where Japanese is only required at a basic conversational level.

Drive end-to-end modernization of core insurance systems, leading complex IBM mainframe transformation initiatives and hybrid architecture design.
Partner with global stakeholders to deliver scalable, API-enabled solutions integrating legacy and open platforms.

Join a high-impact engineering team building incentive and payment platforms used across a global digital ecosystem. This role focuses on leading backend design and delivering secure, high-performance APIs at scale.

Leading Off-shore team in India! No Japanese Required!

急成長中のエンターテインメント企業でのフロントエンドエンジニアポジションです。

海外アーティストの日本展開やツアー関連プロジェクトに伴い、Webサイトやファン向けシステムの開発を担当します。

This role focuses on developing and maintaining Python-based APIs that support large-scale data transfer and orchestration processes across multiple storage and messaging platforms. The position involves working with Django, REST APIs, CI/CD, and DevOps practices to build reliable, high-availability data infrastructure and improve development efficiency.

Join a high-impact team building secure, scalable payment APIs that power a global digital ecosystem. You will contribute across the full stack using Java and JavaScript, helping shape robust microservices architecture in a high-QPS environment.

This role focuses on leading the basic design and development of scalable, secure Java-based applications powering global incentive and payment platforms. You will collaborate across teams to deliver high-performance REST APIs and drive best practices in modern software engineering.

Software Engineer specializing in payment platforms, responsible for designing, developing, and maintaining secure, scalable Java-based payment APIs and microservices. Collaborates with cross-functional teams to deliver high-performance payment solutions, optimize system architecture, and ensure reliability, security, and business alignment.

Join a high-impact engineering team developing large-scale advertising platforms that power a major digital ecosystem. This role offers hands-on ownership across design, development, and deployment while collaborating with global teams.

Lead the design, development, deployment, and reliability of scalable backend systems and microservices across the full software development cycle. Requires strong experience in Java, Kubernetes, Docker, and cloud/distributed environments, with collaboration and mentoring responsibilities.

Join a global, data-driven engineering team building high-performance backend systems that power large-scale advertising platforms. As a Senior Java Engineer, you will lead system design and contribute to scalable, resilient architecture while collaborating across international teams.

Seeking a Senior Server-Side Engineer to lead backend design, development, and operation of scalable applications using Java, Spring Framework, Kafka, and modern cloud-native technologies. The role requires strong expertise in system architecture, database design, CI/CD and Kubernetes, and full software development lifecycle delivery within an Agile environment, with business-level English communication skills.

Join a fast-paced engineering environment developing incentive and payment systems used across a global digital ecosystem. This role focuses on building scalable, secure backend services using modern Java technologies.

This is a senior-level opportunity to lead the design and development of scalable, customer-facing applications across web and mobile platforms. You will bridge front-end and back-end systems while mentoring engineers and shaping best practices in a high-impact environment.

Senior Java Developer responsible for designing and building secure, scalable applications and RESTful APIs using Java and Spring Boot. The role focuses on system design, database optimization, Docker-based deployments, and collaboration with cross-functional teams to deliver high-quality solutions.

Join a leading e-commerce platform team in Tokyo to design and lead backend systems at massive scale. You will act as a senior technical leader, driving architecture, delivery, and operational excellence across high-traffic services.

This role is for an iOS Developer responsible for building and maintaining mobile applications using Swift and MVVM architecture, integrating REST APIs, and ensuring high performance and reliability. The position involves collaborating with cross-functional teams in an Agile environment to deliver new features and enhancements for personal finance mobile services.