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シニアソフトウェアエンジニア, JavaScript/TypeScript (Senior Software Engineer) (Remote)

Bjakcareer

Tokyo, Tokyo, Japan Remote permanent

Posted: February 23, 2026

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Quick Summary

Develop high-quality NodeJS-based backend systems and frontend applications using ReactJS and NextJS, focusing on ensuring high-quality code stability and minimizing business impact when resolving issues. Apply your skills in handling existing code, improving code quality, and working with cross-functional teams. Utilize your expertise to mentor junior developers and provide best practices support.

Job Description

Bjakについて

Bjakは、ASEAN地域の人々に手頃で持続可能な金融サービスへのアクセスを提供することに注力しています。本社はマレーシアにあり、Bjakは東南アジア最大の保険ポータルです。主力サイト「Bjak.com」は、何百万人ものユーザーが最適な価格で最高水準の補償を受けられる保険商品を見つけることを支援しています。Custom API、取引システム、データサイエンスなどのテクノロジーへ積極的に投資し、これまで利用が難しかった金融サービスを誰でも簡単に利用できるようにしています。

マレーシアでの事業拡大に伴い、私たちのビジョンを共有し、Bjakの次章を共に築く情熱的な人材を募集しています。

職務内容

• NodeJSを用いた高品質なバックエンドシステムの開発(ベストプラクティスの遵守)

• ReactJS/NextJSを用いた高品質なフロントエンドアプリケーションの開発(ベストプラクティスの遵守)

• 本番環境の安定性を確保し、重大な問題を迅速に解決して業務への影響を最小化

• 既存コードを分析し、改善・最適化の機会を特定

• 変更要求に効率良く対応し、クロスファンクショナルチームを支援

• ジュニア開発者へのメンター・指導を通じてベストプラクティスを浸透

• ピアのプルリクエストをレビューし、コード品質と一貫性を維持

応募資格

• コンピュータサイエンス、ソフトウェアエンジニアリング、ITまたは関連分野の学士号(アルゴリズムとデータ構造の確かな基礎を有すること)

• ソフトウェアエンジニアとして3年以上の実務経験

• NodeJS、NestJS、ExpressJS、GraphQL、Postmanなどのバックエンド開発技術に精通

• ReactJS、NextJS、Styled-componentsなどのフロントエンド開発技術に精通

• MongoDBおよびMySQLなどのデータベース管理経験

• Selenium、Cypress、Puppeteerなどを用いた自動化ワークフローに関する知識

• 自主的にプログラミングし、課題を解決する情熱

歓迎スキル

• 関連プロジェクトのポートフォリオ

• GCP/AWSなどのクラウドサービスおよびIaC(Infrastructure as Code)の実践経験

• UI/UXデザインの経験

• TDD(テスト駆動開発)またはBDD(振る舞い駆動開発)の経験

• PugやSlimなどのWebテンプレート言語の経験

• 技術ドキュメント作成の経験

福利厚生

• 完全リモート勤務:どこからでも働ける自由なワークスタイル

• 革新的な課題:スピード感があり、挑戦的かつユニークなビジネス課題に携われます

• キャリア成長:学習と成長を支援する充実した制度

• グローバルな環境:フラットな組織構造の国際的な職場で活躍

• 競争力のある給与:市場に見合った報酬パッケージ

Bjak is focused on providing access to affordable and sustainable financial services for people in ASEAN. Headquartered in Malaysia, Bjak is the largest insurance portal in Southeast Asia. Our main portal, Bjak.com, helps millions find the insurance policy with the best value and highest coverage for them. Our investments in technology such as Custom API, trading systems and data science is to enable easy access to financial services that were previously inaccessible or difficult to understand. Join us on this exciting journey as we expand our operations in Malaysia. We're looking for dynamic individuals who share our vision and want to contribute to the next chapter of Bjak's success.

Responsibilities

• Develop high-quality backend systems using NodeJS, adhering to best coding practices.

• Develop high-quality frontend applications using ReactJS / NextJS, adhering to best coding practices.

• Ensure production stability and promptly resolve critical issues to minimize operational impact.

• Analyze existing code and identify opportunities for enhancement and optimization.

• Support cross-functional teams by addressing change requests efficiently.

• Mentor and guide junior developers on best practices in software development.

• Review peer pull requests to maintain code quality and consistency.

Requirements:

• Bachelor's Degree in Computer Science, Software Engineering, Information Technology, or a related field, with a strong foundation in algorithms and data structures.

• Over 3 years of full-time experience in software engineering.

• Proficient in backend development technologies such as NodeJS, NestJS, ExpressJS, GraphQL, and Postman.

• Proficient in frontend development technologies such as ReactJS, NextJS, and Styled-components.

• Experienced in database management, including MongoDB and MySQL.

• Familiar with automation workflows using tools like Selenium, Cypress, and Puppeteer.

• Demonstrated passion for programming and problem-solving independently.

Bonus Points

• A portfolio of relevant projects is highly advantageous.

• Experience with GCP or AWS cloud services and Infrastructure as Code practices.

• Experience in UI/UX design.

• Familiarity with Test-Driven Development (TDD) or Behavior-Driven Development (BDD).

• Experience with web templating languages such as Pug or Slim.

• Experience in technical documentation is a plus.

Benefits:

• Fully Remote Role: Work from anywhere and enjoy the freedom of a fully remote position.

• Innovative Challenges: Work on fast-moving, challenging, and unique business problems.

• Career Growth: Benefit from strong learning and development plans for your career growth.

• Global Environment: Thrive in an international work environment with a flat organizational structure.

• Competitive Salary: Receive a competitive salary package.

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