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Senior Frontend Developer (Web3/ FinTech) |US Time

freeC
29/07/2025
Remote work

Ha Noi, Ho Chi Minh, Da Nang

Up to 65 Mil VND
1
7 years of experience
Next.js
Typescript
Tailwind CSS
D3.js
Web3 / DeFi development

We are an innovative and fast-growing Web3 startup based in the United States, at the forefront of combining decentralized finance with cutting-edge user experiences.

Key Responsibilities:

  • Lead the architecture, development, and optimization of highly responsive and scalable frontend applications using Next.js.
  • Translate high-level business requirements and designs into actionable technical tasks and robust code.
  • Implement sophisticated real-time data visualizations using D3.js, integrating with WebSocket connections for dynamic updates.
  • Collaborate closely with backend engineers, product managers, and UI/UX designers to deliver seamless user experiences.
  • Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed and scalability.
  • Write clean, maintainable, and well-documented code following best practices.
  • Participate in code reviews, contribute to technical discussions, and mentor junior developers.
  • Stay up-to-date with the latest frontend technologies, Web3 trends, and FinTech advancements.

Required Skills & Experience:

  • 7+ years of professional experience as a Frontend Developer, with a proven track record of delivering high-quality applications.
  • Deep expertise in Next.js, TypeScript, and Tailwind CSS.
  • Extensive experience in building complex, real-time data visualizations connected via WebSockets (experience with D3.js is a big plus)
  • Strong experience in FinTech or Trading systems development, understanding the intricacies of financial data and user interfaces.
  • Hands-on experience in Web3 / DeFi development, including familiarity with libraries/tools such as WalletConnect, MetaMask integration, ethers.js, viem, etc.
  • Proactive and independent work ethic, with the ability to take initiative and drive projects forward.
  • Excellent problem-solving skills and the ability to translate abstract, high-level requirements into concrete, executable tasks.
  • Fluent English communication in both spoken and written skills
  • Strong communication skills and ability to collaborate effectively in a remote, international team environment.
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Company Info
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freeC
freeC
freeC
Ho Chi Minh
101-300 employees
HRTech
IT/ Web
About
freeC is the Smart Recruiting Platform that leverages matching technology to actively connect hundred of thousand of employers and job seekers. The success of freeC is determined by our success in operating as a unified team. If you're interesting, ambitious, and eager to advance your career with us, explore our vacancies as below. We're excited to have you on board our ship to help us grow fast, deliver on our mission of actively connecting employers and job seekers around Vietnam
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Working Address
Lầu 06, Tòa nhà BCONS TOWER II , Số 42/1, Đường Ung Văn Khiêm, Phường 25, Quận Bình Thạnh, TP. HCM
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