Cloud Infrastructure Engineer

About PayPay Securities

PayPay is a FinTech company that has surpassed 69 million users (as of May 2025) in 6 years since its launch in 2018, is rapidly expanding its business scale as a payment platform used by approximately one out of every two smartphone users in Japan.

PayPay Securities Corporation provides a unique and familiar asset management service that anyone can easily use in their daily lives as a specialized smartphone brokerage firm that can be used through PayPay.

As a member of the PayPay Group, we are refining our products at an overwhelming speed that no other company can imitate, and we will promote the spread of cashless payments in Japan and the financial life platform that uses them at a dash. We are looking for people who are passionate about these things as professionals, who can identify issues on their own, and who can work together with others to create new value.

※ Please note that you cannot apply or be selected in parallel with PayPay Corporation, PayPay Card Corporation and PayPay Securities Corporation.

Job Description

PayPay Securities, as an important part of PayPay’s financial ecosystem, has launched “Point Management” with over 20 million users and “PayPay Asset Management, the first initiative in Japan that enables asset management on a payment application. Now that the business foundation of the financial ecosystem is finally in place, we intend to expand our business to change the structure of asset management in Japan, with the main target being those who have not yet started asset management or were not interested in it before.

To achieve our goal, PayPay Securities is preparing to bring in technical talents not only from Japan but also globally, just as we have done with PayPay’s product division. As a Cloud Infrastructure Engineer, you will be collaborating with engineers, designers and QAs, and working in an environment where you can be one of the founding members to build up a new organization within PayPay Securities.

※ Please note that this job is for Japan Residents Only

Highlights of the opportunity:

• Be part of the team to build up a new organization and environment

• Develop skills in making business plans from a high perspective, through the high-level coordination with departments and affiliated companies within PayPay Group to support the top management’s decision

• Gain experience in a company that aiming to be the pioneer in the market to provide a brand new Mobile Securities services, which never had before during the era of Financial reformation

• Able to utilize PayPay's services and user base

Responsibilities:

• Architect and build a robust, scalable and stable infrastructure

• Architect and build Infrastructure that is easily maintainable during patching and upgrades without downtime

• Architect and build Infrastructure with AWS regional level failure tolerance

• Work together with our Security Engineers to provision a secure Infrastructure

• Automations for AWS Deployments to ensure fast delivery of Cloud Services to our developers

• Provide through Automations means for developers to easily deploy resources on AWS

Qualifications:

• 5+ years of technical experience in AWS based Infrastructure solution design and build

• Experience in production level Infrastructure change management and releases for High traffic & business-critical systems

• Good understanding of Cloud security best practices and payment industry compliance standards

• Experience in production incident management and cross team collaboration

• Extensive technical hands-on experience of Computing, Storage and Analytical Services on Cloud(AWS)

• Experience with IAC tools in AWS such as Terraform etc.

• Experience with Linux Internals and System Administration

• Experience with Cloud Services Monitoring, Detection and Response

• Experience in Cloud Infrastructure Service patching and upgrades

• Have excellent written, verbal and interpersonal communication skills

• Business level in either English or Japanese (Native Japanese speaker or JLPT N1 equivalent)

Preferred Qualifications:

• Has maintained over 200 servers/containers in a production, customer facing cloud environment

• Experience in Disaster recovery for cloud systems and improvements for RTO and RPO

• Experience with other cloud service providers (e.g Google Cloud)

• Experience in Cloud Services Performance Tuning, cost controls and management

• Experience using and contributing to Open Source tools

• Published papers / blogs / articles - Experience in managing IT compliance and security risk

• Experience in working for infrastructure design and build in securities, finance, or similar industries

• Experience in in-house service operations

The ideal candidates at PayPay Securities

• PayPay 5 senses

Working Conditions

Employment Status

• Full Time

Office Location

• Hybrid Workstyle (flexible working style including Remote and office) ※There are no fixed rules regarding office attendance in Product group; it depends on each individual's discretion.

Work Hours

• Super Flex Time (No Core Time)

• In principle, 9:00am-5:45pm + 1h break (actual working hours: 7h45m + 1h break)

Holidays

• Every Sat/Sun/National holidays (In Japan)

• Summer break (2 days / generally taken between July 1st and September 30th / subject to change depending on month of employment)

• Year-end and New Year holidays (12/31-1/3)

Paid leave

• Annual paid leave (1 to 10 days depending on the month of joining will be granted upon employment date)

Salary

• Annual salary paid in 12 installments (monthly)

• Based on skills, experience and abilities

• Review once a year

• Special Incentive once a year *Based on company performance and individual contribution and evaluation

• Overtime allowance, Late overtime allowance, Commuting and transportation expenses, Work style support allowance

Benefits

• Social Insurances (Health insurance, Employee pension, Employment insurance and Industrial accident compensation insurance)

• 401K

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