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Lead Full‑Stack Engineer Driving Secure Cloud Innovation

Tokyo 23 Wards Temporary ¥6,000,000 - ¥8,000,000 per year Foreign Multinational View Job Description
This senior engineering role leads the design, development, and long‑term operation of secure, scalable full‑stack systems within a major technology group. You will shape engineering standards, contribute to enterprise cybersecurity platforms, and introduce modern cloud and AI‑enhanced development practices.
  • Drive enterprise-scale security engineering innovation
  • Own full‑stack design, cloud architecture, and modern AI‑enabled development

About Our Client

A large global technology group with a dedicated cybersecurity engineering organisation. The team builds internal security platforms and provides modern, scalable solutions that support company‑wide risk reduction and secure digital transformation.

Job Description

  • Lead the design, development, and delivery of scalable and secure cybersecurity solutions.
  • Own backend, frontend, and cloud architecture across the full development lifecycle.
  • Partner with cross‑functional stakeholders to deliver high‑quality internal services.
  • Promote technical standards, architectural consistency, and best development practices.
  • Mentor engineers and contribute to knowledge‑sharing across the team.
  • Support the secure adoption of Generative AI and LLM‑based tools to enhance productivity and automation.

The Successful Applicant

Must‑have:

  • Bachelor's degree in a technical field.
  • 5+ years' experience in full‑stack or backend engineering in enterprise environments.
  • Strong hands‑on expertise with .NET / C#, ASP.NET Core, and clean architecture.
  • Frontend development using TypeScript, React, and/or Next.js.
  • Python skills for backend services or automation tooling.
  • Solid cloud engineering experience (Azure strongly preferred; AWS/GCP welcome).
  • Proven capability in designing secure cloud architectures (identity, networking, access control).
  • Experience with unit testing frameworks (xUnit/NUnit/MSTest).
  • Knowledge of RESTful/SOAP APIs, relational databases (Azure SQL / MS SQL), and NoSQL stores (Cosmos DB).
  • Strong technical documentation, communication skills, and stakeholder engagement.
  • Proficiency in troubleshooting, debugging, performance tuning of .NET and JavaScript/TypeScript systems.
  • Understanding of Generative AI/LLM fundamentals and experience using LLM‑based productivity tooling.
  • Strong ownership, collaboration mindset, and interest in cybersecurity.
  • Business‑level English; no Japanese required.

Nice‑to‑have:

  • Master's degree in a relevant field.
  • Experience with large-scale internet services or consumer platforms.
  • Exposure to CI/CD, DDD, microservices, Docker/Kubernetes, distributed systems (Kafka, Redis, Elasticsearch).
  • Technical leadership or mentorship experience.
  • Prior cybersecurity domain exposure.
  • Practical prompt‑engineering experience and LLM integration into applications or automation pipelines.
  • Familiarity with Azure OpenAI or similar AI platforms.
  • Understanding of AI security, privacy, and compliance considerations.



What's on Offer

  • Opportunity to build enterprise-grade cybersecurity platforms with modern full‑stack and AI‑enabled technologies.
  • Influence engineering standards and lead secure cloud architecture across a major global tech group.
  • Work in an international environment with no Japanese requirement.
  • Strong career development in cloud, security engineering, and AI‑driven software practices.



Contact
Serena Wu
Quote job ref
JN-022026-6958304
Phone number
+81 3 6627 6137

Job summary

Function
IT
Specialisation
Programming / Development
Specialisation
Retail
Location
Tokyo 23 Wards
Job Type
Temporary
Consultant name
Serena Wu
Consultant phone
+81 3 6627 6137
Job Reference
JN-022026-6958304
Company Type
Foreign Multinational

Diversity & Inclusion at Michael Page

We don't just accept difference - we celebrate it. We encourage applicants from all backgrounds to apply for this role and are committed to building inclusive, diverse workplaces where everyone can thrive. If you require any support or reasonable adjustments during the recruitment process, please let us know.