Senior Frontend Engineer (Fintech)

Front-End Engineer

Company

J-CAM Inc.

Conditions

5 days agoSeniorSalary: 7M - 15MTokyo, Japan Onsite Full Time Frontend Jobs by J-CAM Inc.

J-CAM Inc. J-CAM Inc. is a Tokyo-based fintech company that operates a crypto investment service and a Web3.0-focused media platform, aiming to raise financial literacy in Japan while helping users turn digital assets into revenue-generating investments. Its clients are primarily Japan-based retail investors and readers interested in cryptocurrency, blockchain, and next-generation finance. Tokyo, JP Projects BitLending Iolite About J-CAM Inc. J-CAM Inc., founded in May 2020 by CEO Toshiyuki Niitsu, provides technology-driven financial services and information infrastructure aimed at bringing next-generation finance to Japan at a global standard. The company operates BitLending, a crypto investment service that lets users deposit digital assets to earn returns with industry-leading rates and fast payout times in the Japanese market, transforming crypto from a passive holding into a revenue-generating asset. J-CAM also runs Iolite, a finance and technology magazine and web media platform dedicated to improving literacy around Web 3.0, blockchain, cryptocurrency, and AI, publishing daily news, event reports, and selected print articles. The company is advised by finance industry veterans with backgrounds at firms such as Merrill Lynch Japan Securities, Citigroup Global Markets Japan, Okasan Asset Management, and the World Bank Group, and it primarily serves Japanese retail investors and readers seeking accessible, trustworthy financial and crypto information. View jobs by J-CAM Inc.

Skills

Accessibility Angular Api Integration Aws Azure Code Review Communication Cross-Browser Compatibility Css3 E2e Testing Gcp Git Html5 Javascript Node.Js Performance Optimization React Technical Documentation Typescript Ui Component Ui Component Library Ui/Ux Design Unit Testing Vue.Js Web Security

About the Role

You will design, develop, test, and deploy web applications using HTML, CSS, and JavaScript. You will build reusable components using modern JavaScript frameworks and implement interactive user interfaces based on UI/UX design. You'll integrate with backend APIs, optimize data processing performance, ensure cross-browser compatibility, and maintain accessibility. You will also conduct code reviews, write test cases, maintain technical documentation, and stay up-to-date with the latest web technologies. You'll collaborate closely with design and backend teams to solve technical challenges and contribute to products that deliver an exceptional user experience.

Requirements

• 3+ years of hands-on experience in frontend web development
• Strong knowledge and practical experience with HTML5, CSS3, and JavaScript (ES6+)
• Development experience using at least one of the following frameworks: React, Vue.js, or Angular
• Experience with version control using Git
• Basic knowledge of performance optimization and web security
• Experience working in a team environment and strong communication skills
• Japanese: Fluent
• Experience developing with TypeScript
• Basic understanding of UI/UX design principles
• Experience with Node.js or backend development knowledge
• Experience with cloud platforms such as AWS, GCP, or Azure
• Experience implementing unit tests and E2E tests
• Experience designing and developing UI component libraries
• English: Conversational level or above

Responsibilities

• Design, develop, test, and deploy web applications using HTML, CSS, and JavaScript
• Build reusable components using modern JavaScript frameworks such as React, Vue.js, or Angular
• Implement interactive user interfaces based on UI/UX design
• Integrate with backend APIs, optimize data processing performance, ensure cross-browser compatibility, and maintain accessibility
• Conduct code reviews, write test cases, and maintain technical documentation
• Stay up-to-date with the latest web technologies and evaluate their adoption
• Collaborate with team members to solve technical challenges

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