Job title:	Cloud Infrastructure Engineer
Job type:	Permanent
Emp type:	Full-time
Industry:	IT & Telecommunications / IT・通信
Functional Expertise:	Others / その他
Salary:	Negotiable
Location:	Minatoku, Tokyo, 106-0032
Job published:	2026-07-13
Job ID:	73793

Job Description

Cloud Infrastructure Engineer

About the Company

A rapidly growing FinTech company in Japan is building innovative digital financial services that make investing and asset management more accessible through mobile-first technology.

The company is expanding its engineering organization and looking for talented engineers who are passionate about designing secure, scalable cloud infrastructure and creating products that have a meaningful impact on users' daily lives.

Job Description

The engineering organization is expanding its global team to build the next generation of cloud-based financial services.

As a Cloud Infrastructure Engineer, you will collaborate closely with software engineers, security engineers, QA engineers, and product teams to design, build, and operate highly available cloud infrastructure supporting business-critical applications.

This role provides an opportunity to become a key member of a growing engineering organization and contribute to building modern cloud platforms from the ground up.

Please note: This position is open to candidates currently residing in Japan.

Highlights of the Opportunity

Build and improve a growing engineering organization and cloud environment
Work on large-scale infrastructure supporting millions of users
Collaborate with talented engineers across different teams
Influence architecture and technical decisions
Gain experience with modern cloud technologies in the fintech industry
Flexible hybrid working environment

Responsibilities

Design and build robust, scalable, and highly available cloud infrastructure
Develop infrastructure that enables smooth maintenance, patching, and upgrades with minimal downtime
Design AWS infrastructure with regional-level fault tolerance
Collaborate with security teams to build secure infrastructure
Automate AWS deployments to enable faster delivery of cloud services
Create self-service solutions that allow developers to easily provision AWS resources
Improve infrastructure reliability, scalability, and operational efficiency

Required Qualifications

5+ years of experience designing and building AWS-based infrastructure solutions
Experience managing production infrastructure for high-traffic and business-critical systems
Strong understanding of cloud security best practices and compliance standards
Experience with production incident management and cross-functional collaboration
Hands-on experience with AWS Compute, Storage, and Analytics services
Experience with Infrastructure as Code tools such as Terraform
Experience with Linux system administration
Experience with cloud monitoring, detection, and response
Experience with cloud infrastructure patching and upgrades
Excellent written, verbal, and interpersonal communication skills
Business-level English or Japanese (Native Japanese or JLPT N1 equivalent)

Preferred Qualifications

Experience maintaining 200+ servers or containers in a production cloud environment
Experience with disaster recovery planning and improving RTO/RPO
Experience with other cloud platforms such as Google Cloud Platform
Experience with cloud performance tuning and cost optimization
Experience using or contributing to open-source tools
Experience publishing technical articles, blogs, or papers
Experience managing IT compliance and security risks
Experience designing and building infrastructure in financial services or regulated industries
Experience operating in-house products and services