Senior Backend Engineer

Bloomtech Career — Japan · Posted ~6 hours ago

Senior Full-time Hybrid JPY 7000000-12000000 per year

Skills

Backend development Server-side development API design Data modeling Infrastructure operations Database operations Team-based development APIs Databases Generative AI LLMs CI/CD Infrastructure as Code

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Summary ✨ AI‑Generated

A Senior Backend Engineer will strengthen server-side development for multiple digital learning products and internal systems. Responsibilities include API design, data modeling, generative AI integration, performance tuning, technical debt reduction, CI/CD and infrastructure-as-code improvements, and collaboration with product and design teams. The role offers hybrid work, flextime, and substantial technical autonomy.

Highlights

Hybrid work with three remote days per week and flextime, a global engineering environment, high technical autonomy in architecture decisions, and opportunities to integrate generative AI while improving infrastructure and development practices.

Description

※English is written below※ ≪ハイライト≫ ・年収:700万〜1200万円 ・勤務形態:ハイブリッド勤務(週3日リモート/週2日出社)・フレックスタイム制 ✓エンジニアチームの約半数が外国籍のグローバルな開発環境 ✓上場企業の安定感と、最新の生成AI導入やアーキテクチャ選定ができる大きな裁量 ■企業概要 英語学習サービスを展開する東証グロース上場の教育テック企業。「人×テクノロジー」を軸に、蓄積されたデータとAIを活用した革新的な学習プロダクトの開発を推進しています。 ■勤務地 東京都港区(リモートワーク可) ■ポジション バックエンドエンジニア ■募集の背景 複数学習プロダクトの成長に伴いサーバーサイド開発を強化します。新機能開発だけでなく、技術負債の解消、開発プロセスの改善、インフラ整備までリードしていただける方を募集します。 ■職務内容 ・各種学習アプリおよび社内システムのAPI設計・開発・データモデリング ・生成AI(LLM)を活用した機能開発や開発支援ツールの構築 ・パフォーマンスチューニング、技術負債解消、CI/CDやIaCの整備 ・PdMやデザイナーと連携した仕様検討および開発プロセスの改善 ■必須要件 ・サーバーサイド開発の実務経験 7年以上(言語・フレームワーク不問) ・サーバーやデータベース等のインフラ運用経験 3年以上 ・チームでの開発経験 ーーーーーー ≪Job Highlights≫ - Salary: JPY 7,000,000-12,000,000 - Work Style: Hybrid (3 days remote / 2 days office per week) & Flextime ✓ Global environment with around 50% international engineering staff ✓ High technical autonomy in architectural decisions and GenAI integration within a listed tech company Why this role? Drive the growth of leading EdTech products through server-side engineering. Enjoy high autonomy in architectural decisions, leverage cutting-edge GenAI, and collaborate with a highly productive global team. Company: A fast-growing, listed EdTech company providing premier language learning applications and coaching, combining human expertise with AI and data technology. Role: Backend Engineer What you will do: - Design and implement APIs and data models for learning applications and internal tools - Integrate GenAI/LLM services and automate development workflows - Resolve technical debt, optimize system performance, and maintain cloud infrastructure (CI/CD, IaC) What you need: - 7+ years of server-side software development experience (any language/framework) - 3+ years of experience in infrastructure and database operation