IT Operations Engineer – Corporate IT & Security | TSE-Listed FinTech Company

One of our key clients, a publicly listed Japanese technology company specializing in Fin. Tech and enterprise technology solutions, is looking for an experienced IT Operations Engineer (Corporate IT / IT Infrastructure) to join its growing organization in Tokyo. This position focuses on managing and improving internal IT infrastructure, identity and access management, endpoint security, corporate IT systems, and information security operations.

You will work closely with senior management, including the CEO, CTO, and executive leadership, to strengthen the company’s IT environment, implement best practices, and ensure secure and reliable operations. This is an excellent opportunity for an IT Infrastructure Engineer, Corporate IT Engineer, or Internal IT Systems Engineer looking to take greater ownership of enterprise IT operations and security.

Position Overview

JPY 5,000,000 – 10,500,000 Location: Akasaka, Minato-ku, Tokyo Working Style: 1 ~ 2 days / week Remote depending on the project. Working Hours: Full Flextime / No Core Hours Japanese: Business Level Required English: Conversational Level Required Employment Type: Permanent Employee About the Company Our client is a publicly listed Japanese technology company specializing in advanced software engineering and technology solutions, particularly for the financial and Fin.

Tech industries. The company develops and supports modern financial systems, enterprise applications, and technology platforms for major Japanese organizations. Its engineering organization includes professionals from diverse international backgrounds, creating an environment where Japanese and English are used in different business and technical situations.

As the organization continues to grow, maintaining secure, scalable, and efficient internal IT infrastructure is becoming increasingly important. The company is therefore looking for an IT Operations Engineer who can contribute to the continuous improvement of its corporate IT environment. About the Position As an IT Operations Engineer, you will be responsible for maintaining and improving the company’s internal IT infrastructure, authentication systems, endpoint management, IT assets, and information security operations.

The position combines hands-on technical responsibilities with infrastructure improvement, security management, and collaboration with senior leadership. You will help ensure that employees can work efficiently and securely while maintaining reliable corporate IT systems. The role is particularly suitable for engineers with experience in Microsoft Entra ID, Microsoft 365, Google Workspace, endpoint management, Windows/macOS environments, and corporate IT infrastructure.

Rather than focusing exclusively on end-user support, this position offers opportunities to contribute to broader IT infrastructure improvements, security policies, and operational best practices.

Key Responsibilities

Corporate IT Infrastructure & Operations Manage and maintain internal IT infrastructure, including networks, servers, and authentication systems. Ensure stable and secure operation of corporate IT systems. Implement IT infrastructure best practices and continuously improve operational processes. Maintain and manage hardware, software, and cloud-based IT systems.

Support IT infrastructure environments involving AWS, Google Cloud, and Microsoft Azure. Troubleshoot technical issues and respond to internal IT requests. Maintain technical documentation, operational procedures, and IT-related records. Identity & Access Management Manage corporate identity and authentication systems.

Support user account administration, authentication, and access management. Maintain and improve identity management environments using technologies such as: Microsoft Entra ID Google Cloud Identity Google Workspace Contribute to secure identity and access management practices. Support improvements involving Single Sign-On (SSO) and related identity management technologies.

Endpoint & Device Management Manage corporate endpoints and employee devices across multiple operating systems. Support device administration and security management for: Windows macOS iOS Android Maintain appropriate endpoint security configurations and device management practices. Support endpoint management solutions such as Microsoft Intune.

Contribute to improvements in device administration, IT asset management, and endpoint security. IT Security & Compliance Support the development and implementation of corporate information security policies, guidelines, and procedures. Collaborate with senior management to strengthen the company’s information security environment.

Ensure IT operations comply with internal security policies and applicable compliance requirements. Support network security, endpoint security, and device security management. Identify opportunities to improve IT security controls and operational practices. Technologies & Environment Depending on your responsibilities and the existing environment, you may work with technologies and platforms such as: Identity & Access Management Microsoft Entra ID Google Cloud Identity Single Sign-On (SSO) SCIM Corporate IT & Collaboration Microsoft 365 Google Workspace Endpoint Management Microsoft Intune Windows macOS iOS Android Cloud & Infrastructure AWS Google Cloud Platform (GCP) Microsoft Azure Corporate networks and servers IT asset management systems IT Security Endpoint security Identity and access security Corporate IT security policies IT compliance and operational security Why Apply?

This position offers the opportunity to take an active role in strengthening the internal IT infrastructure of a publicly listed Japanese technology company. Unlike positions focused exclusively on routine IT support, this role involves broader responsibilities across infrastructure management, identity systems, endpoint security, and IT operational improvements.

Direct Collaboration with Senior Leadership Work closely with the CEO, CTO, and executive management on initiatives related to IT infrastructure, security, and operational improvements. Broad Technical Responsibilities Gain exposure to multiple areas of corporate IT, including identity management, endpoint administration, cloud environments, network management, and security operations.

Ownership & Continuous Improvement Contribute to improving IT infrastructure and operational processes rather than focusing only on routine maintenance. International Technology Environment Work within a technology-driven organization with professionals from diverse international backgrounds. Flexible Working Style Benefit from a flexible hybrid working environment and a flextime system without core working hours.

Career Development Build deeper expertise in Corporate IT, Identity & Access Management, IT Infrastructure, and Information Security while contributing to the company’s long-term technology operations.

Requirements

Must Have Professional experience in IT Operations, Corporate IT, IT Infrastructure, System Administration, or a related technical position. Knowledge and hands-on experience with identity management and authentication systems, such as at least one of the following: Microsoft Entra ID Google Cloud Identity Google Workspace Knowledge and experience managing corporate endpoints and devices, including environments such as: Windows macOS iOS Android Business-level Japanese communication skills.

Conversational English communication skills. Ability to troubleshoot technical issues and maintain stable IT operations. Ability to work independently and collaborate with internal stakeholders.

Nice to Have

Experience with Identity and Access Management (IAM), including: Microsoft Entra ID SSO SCIM Experience managing endpoints using Microsoft Intune or similar solutions. Experience administering corporate collaboration platforms such as Microsoft 365 or Google Workspace. Experience contributing to corporate IT security policies or security guidelines.

Experience with endpoint security management. Knowledge of or experience with cloud environments such as AWS, GCP, or Azure. Interest in Artificial Intelligence and emerging technologies. Experience improving internal IT infrastructure, operational efficiency, or security practices. Ideal Candidate Profile We are particularly interested in candidates who: Have a strong technical foundation in Corporate IT, IT Operations, or enterprise infrastructure.

Enjoy hands-on infrastructure management and technical problem-solving. Take ownership of IT systems and continuously look for opportunities to improve them. Understand the importance of security, reliability, and operational efficiency. Can communicate effectively with engineers, employees, management, and other stakeholders.

Are comfortable working independently while collaborating with different departments. Are interested in expanding their knowledge of cloud technologies, identity management, and IT security. Have a strong interest in learning new technologies and implementing modern IT practices.

Benefits

JPY 5M – 10.5M Hybrid work: 1 ~ 2 days remote per week Fully flexible working hours with no core time Full social insurance Maternity and childcare support Professional certification support Book and learning-material purchase support Appropriate development devices and equipment provided International engineering environment Opportunities to work with modern backend, frontend, cloud, and Fin.

Tech technologies Opportunities to work on large-scale enterprise and financial-industry technology projects