Top Tech Jobs & Startup Jobs

Develop and operate web products including PayPay Securities mini-applications, PC trading sites, and internal business tools. Collaborate with product managers and designers to improve investment experiences, prototype new features, and implement redesigns. Improve unit testing, architecture, frontend performance, and CI/CD processes while contributing to a new engineering organization.

Manage an engineering team delivering products and projects with high quality and on schedule. Prioritize work, facilitate development and operational processes, translate stakeholder needs into technical requirements, conduct one-on-ones and performance evaluations, support team growth, plan future resources, and recruit engineers. The role requires technical leadership, complex systems understanding, strong communication, and business-level English or Japanese.

Designs, executes, and maintains automated tests for mobile, web, and API applications. Responsibilities include creating test scenarios, cases, scripts, and data; executing manual and automated tests; analyzing defects and results; improving automation frameworks and testing processes; and collaborating with engineering, design, and QA teams. The role also uses AI-assisted development tools to improve test design, debugging, documentation, and productivity.

Own product management for PayPay Securities’ mobile investment platform. Responsibilities include writing PRDs, coordinating design, engineering, and QA teams, managing product development cycles, translating user problems into product improvements, and defining metrics for continuous user-experience optimization. The role helps establish a new product organization and expand accessible asset-management services in Japan.

Develop and operate backend applications for PayPay Securities using PHP, Java, Spring Boot, Kotlin, and database technologies. Design scalable, high-throughput systems, leverage infrastructure to solve complex technical problems, build development tools, contribute to open source, and pursue root-cause problem solving. The role collaborates with engineers, designers, and QA while helping establish a new engineering organization.

Design UI/UX for PayPay Securities native apps, mini-apps, PC trading sites, and management tools. Collaborate with product managers, engineers, and designers to create features and improve existing experiences. Conduct quantitative and qualitative user research, analyze product metrics, develop UX flows and interfaces using design systems, propose improvements, and facilitate design workshops.

Designs and builds robust, scalable, secure AWS infrastructure for high-traffic financial services. Responsibilities include regional fault tolerance, zero-downtime patching and upgrades, infrastructure change management, cloud deployment automation, developer self-service, monitoring, incident response, and collaboration with security and engineering teams.

Lead weekly functional and non-functional release testing, roadmap project QA, test planning, scope definition, test execution, defect triage, reporting, and test case management. Collaborate with QA engineers, developers, designers, vendors, and affiliated teams to ensure product quality. Maintain master test cases, prepare test data and environments, review test cases, and improve QA processes for mobile securities services.

Employee referral application program for PayPay Securities. Applicants must be referred by a current PayPay Securities employee, provide the referrer’s information, and complete the application themselves. The company offers hybrid work from its Tokyo office and may conduct application review, one to three online interviews, aptitude testing, coding challenges, or assignments depending on the position.