Frontend Engineer

3 days ago

Ho Chi Minh City Vietnam Spartan Dev Full time $140,000 - $200,000 per year

Build like a founder. Ship like Spartan.

Our customers are scaling fast — and so are we. That's why we're looking for a Frontend Engineer to join our world-class team.

At Spartan, we don't act like vendors. We embed with startups backed by YC, BlingCap, Pear VC, a16z, Techstars, and more — partnering with founders and engineers from Stanford, MIT, Yale, Google, Amazon, Uber, and beyond. Together, we help launch MVPs in 30 days and scale systems that power millions of users.

This isn't "just another frontend role." It's a chance to craft intuitive user experiences, solve complex startup challenges, and see your code directly drive companies raising millions on the global stage.

You'll also be working at the frontier of AI: 70% of our portfolio today is LLM-powered. Our engineers leverage the latest tools like Cursor, Claude, and Codex to accelerate development and integrate AI-native workflows into everything we build.

What You'll Do

  • Build beautiful, performant, and scalable web applications using React, TypeScript, and modern JavaScript.
  • Collaborate directly with US startup founders and product leaders — shaping solutions that drive their business forward.
  • Ship fast with a proven process: async standups, PRDs/RFCs, code reviews, automation.
  • Work in an AI-native workflow — leveraging tools like Cursor, Claude, and Codex to reduce boilerplate and boost iteration speed.
  • Uphold engineering excellence — clean code, testing, documentation, reliability.
  • Help shape Spartan's engineering culture — we're 1% pass-rate engineers who work like founders, not contractors.

What We're Looking For

  • Fluent in English — you'll work directly with US startup founders.
  • 3+ years building production-grade frontend applications.
  • Strong expertise in React, TypeScript, and modern JavaScript (ES6+).
  • Solid understanding of frontend fundamentals: state management, performance optimization, accessibility.
  • Experience with design systems, responsive UI, and API integrations.
  • A builder's mindset — you care about user experience as much as you care about clean code.

Tech We Use

  • React
    • TypeScript
    • JavaScript (ES6+)
  • • TailwindCSS
    • Storybook
  • Jest
    • Cypress
    • Playwright
  • GraphQL
    • REST APIs
  • AWS
    • GCP
    • Vercel
  • AI-native tooling: Cursor
    • Claude
    • Codex

Perks & Benefits

  • Competitive salary
  • Unlimited PTO + public holidays
  • Premium healthcare insurance
  • Sports coverage (Strava integration)
  • Hybrid working style
  • Annual company trip + monthly team parties

Career Growth

  • Work with founders from YC, Stanford, Uber, Amazon, Bird, and more.
  • Exposure to cutting-edge frontend + AI stacks.
  • Transparent career path and mentorship from engineers who've scaled startups to IPO.
  • Solve real startup challenges — every project feels like its own mini-startup.

Why Spartan

  • 50+ MVPs launched, 3 IPOs, $100M+ raised.
  • 95% engineer retention — because we hire the top 1%.
  • You'll never just "take tickets" here. You'll own problems, ship fast, and grow with the founders we partner with.

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