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職種、スキル、勤務地で求人を検索できます。応募書類を準備する前に募集要件を確認しましょう。

魅力的な職種名を見つけることは、仕事探しの出発点です。業務内容、応募条件、働き方を自分の経験と照らし合わせましょう。このガイドでは、候補の絞り込み、応募書類の準備、提出先の確認を順番に進めるためのポイントを紹介します。

操作画面は日本語です。企業が掲載した求人の職種名や説明文は原文のまま表示され、英語の場合があります。

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Full-Stack Developer Intern

Letzstepin

勤務地
Anywhere
掲載日
2026年10月9日

応募する前に、企業のウェブサイトで現在も募集中かどうかと詳しい条件を確認してください。

仕事内容

操作画面は日本語です。企業が掲載した求人の職種名や説明文は原文のまま表示され、英語の場合があります。

Full Stack Developer InternBuild. Secure. Deploy. Scale. LetzStepIn Private Limited is looking for a Full Stack Developer Intern who wants to build real products, solve real business problems, and see their work move from code to production. This is a hands-on opportunity within a fast-growing technology startup, where you will contribute to LetzStepIn's in-house technology ecosystem, client requirements where applicable, VR/digital experiences, and the upcoming Immersive Marketplace (Super App). We are looking for someone who can think independently, write custom code, build across the stack, create excellent user experiences, deploy applications, solve problems, and deliver with speed without compromising accuracy or security. 🚀 WHAT YOU'LL WORK ON1. Virtual Reality & Digital Solutions Build and enhance responsive web experiences supporting LetzStepIn's 360° Virtual Tours, VR solutions and immersive digital experiences for real-world properties and businesses. 2. Immersive Marketplace — Upcoming Super App Contribute to the development of LetzStepIn's upcoming Immersive Marketplace, including web applications, dashboards, listings, search, user flows, APIs, databases, authentication, integrations and other product modules. 3. In-House & Client Projects Develop and maintain websites, web applications, dashboards, landing pages, APIs, integrations and custom digital solutions for LetzStepIn and its clients, whenever required. 💻 WHAT YOU'LL DO Develop custom, scalable and maintainable full-stack applications. Build modern, intuitive and functional UI/UX. Ensure applications are fully responsive across mobile, tablet, laptop and desktop. Develop frontend applications using HTML, CSS, JavaScript, React, Next.js or equivalent technologies. Develop backend services, APIs and business logic using Node.js, Express, NestJS or equivalent technologies. Work with MySQL, PostgreSQL, MongoDB or equivalent databases. Build and integrate REST APIs and third-party services. Use Git and GitHub for version control and collaborative development. Deploy and maintain applications through Hostinger/hPanel and relevant hosting/server environments. Understand domains, DNS, SSL, environment variables, databases, build processes and production deployment. Debug independently and identify root causes rather than simply fixing symptoms. Optimize applications for performance, responsiveness and reliability. Test features across devices and browsers before release. Convert business and client requirements into practical technical solutions. Maintain clean, readable and maintainable code and appropriate technical documentation. Node.js web applications including React, Next.js, Vite, Express and NestJS, with GitHub-based deployment and configurable build/start environments. 🔐 SECURITY IS NON-NEGOTIABLE Security must be considered during development—not after development. You will be expected to follow secure coding practices and understand common risks including: Broken Access Control · Security Misconfiguration · Injection · Authentication Failures · Cryptographic Failures · Insecure Design · Software Supply-Chain Risks · Data Integrity Failures You must: Protect passwords, credentials, API keys, tokens and sensitive information. Never hard-code secrets into source code. Apply appropriate authentication and authorization. Validate and sanitize inputs. Secure APIs and database interactions. Follow appropriate HTTPS/SSL practices. Keep dependencies reasonably updated. Avoid exposing sensitive information through errors, logs or APIs. Identify and report security vulnerabilities. Follow LetzStepIn's confidentiality and security requirements. These expectations align with the current OWASP Top 10:2025 secure-development framework. Our standard: Functional + Responsive + Tested + Performant + Maintainable + Secure 🤖 AI-ASSISTED — NOT AI-DEPENDENT AI tools are part of modern software development and may be used responsibly for research, learning, debugging and productivity. However, AI cannot replace engineering fundamentals. You must be able to: Write custom code independently. Understand the code you use. Explain your implementation. Debug without depending entirely on AI. Review AI-generated code for bugs and security risks. Modify solutions according to actual requirements. Make technical decisions independently. Validate before deploying. Use AI to accelerate engineering—not to replace engineering thinking. Selected assessments may include custom coding, debugging and problem-solving exercises without AI assistance. ⚡ STARTUP EXECUTION We operate in a fast-moving startup environment. Development speed matters. Accuracy matters. Security matters. User experience matters. You will be expected to: Understand → Plan → Build → Test → Deploy → Improve We value developers who can move quickly without sacrificing quality, security, performance or maintainability. > “It works on my machine” is not considered finished. 🎯 MUST-HAVE SKILLS HTML5 CSS3 JavaScript Responsive Web Development Frontend & Backend Development REST APIs Database Fundamentals Git & GitHub Debugging & Problem Solving UI/UX Fundamentals Hosting & Deployment Fundamentals Secure Coding Fundamentals Ability to write custom code independently Strongly Preferred React.js Next.js Node.js Express.js / NestJS TypeScript MySQL / PostgreSQL / MongoDB Authentication & Authorization API Integrations Figma or equivalent UI/UX tools Web Performance Optimization Web Security Hostinger / hPanel VPS / Server Fundamentals Testing CI/CD Docker 🧠 WHO WE'RE LOOKING FOR You don't need to know everything. But you should be: Curious enough to learn. Independent enough to solve. Technical enough to build. Fast enough to deliver. Disciplined enough to test. Responsible enough to secure. Adaptable enough to work in a startup. We value problem-solving ability, learning speed, ownership and execution as much as technical knowledge. 🌐 YOUR IMPACT Your work may contribute directly to: LetzStepIn's In-House Technology → VR Solutions → Client Projects → Immersive Marketplace → Future Digital Products You will gain exposure to the complete development lifecycle: Requirement → Architecture → UI/UX → Development → Database → API → Testing → Security → Deployment → Optimization This is an opportunity to learn how real software is engineered, deployed, maintained and improved inside a growing technology startup. THE LETZSTEPIN ENGINEERING MINDSETDon't just learn to code. Learn to engineer.Don't just build features. Build experiences.Don't just use AI. Understand the code.Don't just ship fast. Ship right.Don't just make it work. Make it secure.Don't just complete the task. Own the outcome. If you want to build real products, solve real problems, write real code and see your work go live—this is the opportunity to build your engineering career at LetzStepIn.

検索して比較し、応募を準備しましょう

次の仕事で活かしたい職種やスキルから検索を始めましょう。勤務地と職種の条件を調整し、求人を開いて担当業務を比較してください。結果がない場合は、短い検索語を試すか、条件を一つずつ外してみましょう。

必須条件と歓迎条件を分けて確認し、勤務時間、報酬、勤務地が掲載されている場合は目を通しましょう。リモート勤務でも、居住国、就労資格、勤務時間帯が指定されることがあります。現在の募集状況と詳しい条件は企業に確認してください。

募集要件に関連する実際の経験を選び、自分の役割と貢献を説明しましょう。数値は根拠がある場合にのみ使ってください。企業の応募方法に従い、送信前に連絡先、内容、PDFの表示を確認しましょう。

応募前の確認リスト

仕事探しに関するよくある質問

英語の求人が表示されるのはなぜですか?

職種名や説明文は企業が作成したものです。条件や要件を変えないように原文を掲載しています。操作画面とこのガイドは日本語です。日本語の検索で見つからない場合は、「software engineer」のように、掲載言語の職種名やスキル名でも検索してみてください。検索語が自動翻訳されるわけではありません。

リモート求人なら、どの国からでも働けますか?

必ずしもそうではありません。居住国、就労資格、勤務時間帯が指定されている場合があります。元の求人ページで条件を確認してください。記載がない場合は、自分の居住地から応募できると判断する前に企業へ確認しましょう。リモートという表示だけでは、勤務地の制限がないことは分かりません。

検索結果が出ない場合はどうすればよいですか?

より一般的な職種名や一つのスキルで検索し、条件を一つずつ外してみてください。同じような仕事でも企業によって呼び方が異なります。特定の求人が見つからなくなった場合は、企業の採用ページで求人番号を探しましょう。検索条件を広げても、終了した募集が再開するわけではありません。

ResumizeAIから応募が送信されますか?

応募ボタンは外部サイトを開きます。企業または採用サービスの案内に従い、そのサイトで送信を完了してください。ResumizeAIで応募書類を作成しただけでは応募は送信されません。リンク先が企業のトップページの場合は、該当する募集を探してから手続きを進めましょう。

応募書類とカバーレターはどう調整すればよいですか?

募集要件と、自分が説明できるプロジェクト、業務、成果を結び付けます。経験していない技術や実績を加えず、関連する経験を分かりやすく示してください。カバーレターでは応募理由を具体例とともに伝えます。指定された言語とファイル形式に従い、送信前に両方の書類を確認しましょう。