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Lead Full‑Stack Engineer Driving Secure Cloud Innovation
| Location | Tokyo - 23 Wards |
| Job Type | Temporary |
| Salary | 6 million yen ~ 8 million yen |
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.
Client Details
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.
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.
Job 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.
To apply online please click the 'Apply' button below. For a confidential discussion about this role please contact Serena Wu on +81 3 6627 6137.
General Requirements
| Minimum Experience Level | No experience |
| Career Level | Mid Career |
| Minimum English Level | Fluent |
| Minimum Japanese Level | Basic |
| Minimum Education Level | Bachelor's Degree |
| Visa Status | Permission to work in Japan required |
Required Skills
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.
- 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.
Job Location
- Tokyo - 23 Wards
Work Conditions
| Job Type | Temporary |
| Salary | 6 million yen ~ 8 million yen |
| Industry | Internet, Web Services |
