It jobs in IT - Programming / Development

金融機関向けの自社プロダクトを対象に、設計・開発・技術的意思決定まで幅広く担っていただきます。

生成AI活用やプロダクトの改善・カスタマイズなど、裁量高く開発に取り組める環境です。

This role focuses on building and evolving the core systems that support investment strategies. You will work hands-on with Java and Python in close collaboration with investment and trading professionals.

Data‑focused software engineering role centered on Python backend development, with NumPy and pandas as core, day‑to‑day requirements for data processing and analysis. The position also involves basic frontend work to support user‑facing features, making it ideal for someone comfortable working across backend, data, and light frontend layers.

This role involves designing and building secure, high‑performance Java backend systems for critical fintech products. You'll work with modern technologies in a fast‑paced environment where reliability, scalability, and security are essential.

This role offers the opportunity to design, build, and improve large‑scale Java‑based systems that support critical business operations. You will work closely with cross‑functional teams to deliver reliable, high‑quality solutions in a professional engineering environment.

This role is a Senior Full‑Stack Software Engineer position focused on building and maintaining enterprise‑scale internal applications using Python and modern JavaScript frameworks in a fully remote, agile environment. It offers long‑term stability, international collaboration, and strong potential for permanent conversion, with meaningful ownership over end‑to‑end technical solutions.

数億円規模のDX関連システム開発プロジェクトにて、要件定義から設計・開発・運用まで幅広く携わります。

クラウドネイティブ技術やアジャイル開発を活用し、最適なソリューションを顧客に提供します。

This role involves developing and maintaining scalable Python backend systems that support large‑volume, consumer-facing energy services. It requires strong bilingual Japanese-English communication skills and at least six years of Python experience to collaborate effectively in a cross-cultural engineering environment.

This role focuses on designing and scaling backend systems that power high‑volume merchant and payment platforms. You will take ownership of core services while influencing architecture and engineering best practices in a global team.

This role leads the design, development, and operation of critical backend APIs and batch systems that handle order creation and cart data for a large‑scale e‑commerce platform. It requires senior‑level technical leadership, full‑stack Java expertise, and hands‑on ownership across the entire software development lifecycle.

This role focuses on building and enhancing backend systems that power risk assessment and fraud prevention for a large-scale digital payment platform. You will work on low-latency, data-intensive services that directly impact transaction safety and customer trust.

This role focuses on leading the design and development of scalable, high‑traffic Java backend systems while delivering high‑quality services aligned with business priorities. The position requires a senior‑level engineer who can make architecture decisions, guide teams, and take ownership of complex backend features from design through release.

企業のAI活用をスケールさせるため、AI Readyなデータ基盤の設計・構築をリードするポジションです。クラウドDWHやELT、モデリングを含むアーキテクチャ策定から品質担保の標準化までを推進し、プロジェクトで得た知見を自社プロダクトにも還元することで、AI時代に求められるデータ活用基盤を技術的卓越で支えます。

Looking for a Full‑Stack Engineer with 5+ years of experience and strong expertise in C#/.NET, with a primary focus on backend development. Basic frontend skills in TypeScript are required, and Japanese language ability is a plus but not mandatory.

This role leads backend architecture, development, and technical direction for large-scale, high‑traffic e-commerce services. You will shape system scalability, performance and reliability while guiding complex projects and engineering teams.

大手クライアントのAndroid搭載TV向けソフトウェア開発を担当いただきます。既存ソフトウェアの解析からリファクタリング、リアーキ、設計、実装までフルサイクルで関わるポジションです。

This senior role focuses on leading design and development for a large‑scale order management platform supporting high‑volume e‑commerce operations. You will contribute to system re‑architecture, cloud migration, and new feature delivery across backend and web applications.

This role focuses on designing and developing backend architecture for a next‑generation enterprise data platform supporting large-scale data processing. You will collaborate with global engineering teams to deliver robust, performant backend applications that empower data‑driven decision making across the business.

This role offers the opportunity to design and build a new iOS application that will serve as a core interface for an innovative generative AI platform. You will play a key role in shaping architecture, user experience, and quality standards within a fast-evolving AI engineering group.

This role leads foundational system design, development, and enhancement for an established online sports entertainment and e‑payment platform. You will drive technical improvements, migrations, and new feature development across high‑traffic, high‑availability services.

人工知能分野での最前線に立ち、最新の技術を開発・実装するAI LLMエンジニアを募集しています。技術革新に貢献し、分析部門での重要な役割を果たせる方をお待ちしています。

This role seeks a Senior Full‑Stack Software Engineer to develop, enhance, and maintain internal applications using Python, Angular, and modern development tools within a global financial services environment. It offers a fully remote, long‑term opportunity for proactive engineers who enjoy collaborating with diverse stakeholders and contributing to enterprise-scale systems.

We're seeking an experienced Android Engineer to design, build, and maintain high‑quality mobile features that deliver a seamless user experience. You'll work closely with product and engineering teams to develop scalable architectures, enhance app performance, and contribute to ongoing technical improvements.

This role focuses on designing and improving large‑scale, high‑performance Java backend systems while contributing to API and microservices development. It offers a collaborative, fast‑paced environment where strong Japanese communication skills and a passion for clean, scalable engineering are essential.

You will design, build, and maintain highly scalable financial services that power the ecosystem.

You will work on large-scale distributed systems and help evolve the platform architecture to deliver the next generation of credit card experiences.

This role focuses on designing search schemas and developing internal support systems that help multiple online services deliver fast, relevant search results. You will work closely with search specialists and business teams to turn requirements into robust, scalable technical solutions.

Join the well-built security team to develop the PKI software with the best talents.