Sr Software Engineer, Front End

Posted 2 Days Ago
Be an Early Applicant
San Jose, CA, USA
In-Office
179K-268K Annually
Senior level
Fintech • Financial Services • Cryptocurrency
The Role
Build and own fiat money experiences used by millions, implement AI-native frontend infrastructure (agent harnesses, eval pipelines), drive frontend architecture, performance, testing and server-driven UI, instrument products for data-driven decisions, and collaborate with product, design, and backend teams across US and APAC.
Summary Generated by Built In
Who We Are
At OKX, we believe that the future will be reshaped by crypto, and ultimately contribute to every individual's freedom. OKX is a leading crypto exchange, and the developer of OKX Wallet, giving millions access to crypto trading and decentralized crypto applications (dApps). OKX is also a trusted brand by hundreds of large institutions seeking access to crypto markets. We are safe and reliable, backed by our Proof of Reserves. Across our multiple offices globally, we are united by our core principles: We Before Me, Do the Right Thing, and Get Things Done. These shared values drive our culture, shape our processes, and foster a friendly, rewarding, and diverse environment for every OK-er. OKX is part of OKG, a group that brings the value of Blockchain to users around the world, through our leading products OKX, OKX Wallet, OKLink and more.
 
About the Opportunity
The Fiat team builds the money experiences of OKX. Beyond the payment rails — fiat deposits, withdrawals, and payment methods across 100+ markets — we own Simple Buy/Sell, the front door to crypto for both onshore and offshore markets, and Cards & Pay, the products taking OKX into the money app category and giving customers a whole new reason to connect with us. We sit inside the Bay Area AI-Native Product & Engineering Center: we don't just use AI tools, we build agent harnesses, evaluation pipelines, and automation that lets a small team ship like a large one. We're looking for a front-end engineer who is sharp, curious, data-driven, and believes most "impossible" things simply haven't been automated yet.
 
 
What You’ll Be Doing
  • Own and ship the money experiences of OKX — fiat deposit/withdraw, Simple Buy/Sell for onshore and offshore markets, and Cards & Pay —the surfaces used by millions of users.
  • Build AI-native engineering infrastructure: agent harnesses, reusable skills, E2E automation, and evaluation pipelines that multiply the whole team's output.
  • Make the product data-driven: instrument what you ship, build the tracking and experimentation foundations yourself when they don't exist, and let the numbers decide.
  • Drive frontend quality end-to-end — architecture, performance, testing, and server-driven UI systems that stay backward-compatible in production.
  • Work directly with product, design, and backend teams across the US and APAC to turn ambiguous requirements into shipped features.
  • Contribute tooling, patterns, and practices beyond your own team — what you build should raise the bar for the wider engineering group.
 
What We Look For In You
  • Strong computer science fundamentals and frontend essentials — TypeScript, React, modern toolchains (Vite), browser internals, and state management. Depth beyond framework APIs.
  • A good sense of web performance, responsive design, and web security — you build experiences that are fast, adaptive across devices, and safe by default.
  • Hands-on creativity with AI-assisted development: you've built things around models — agents, harnesses, MCP tools, eval loops, CI gates — not just used autocomplete.
  • Sharp problem-solving: you root-cause ambiguous problems quickly and make sound calls with incomplete information.
  • Self-driven and resilient: you learn faster than expected, push hard deliveries through to completion, and contribute beyond your own scope.
  • A conviction that decisions should be data-driven — and the willingness to get your hands dirty building the instrumentation and infrastructure when it doesn't exist yet.
  • BS/MS in Computer Science or a related field from a strong program, or equivalent evidence of exceptional ability.
  • Proficiency in Mandarin Chinese is required to communicate effectively with our engineering and product teams across APAC.
 
Nice to Haves
  • You've shipped developer tooling, design systems, or open-source work that other engineers adopted.
  • Familiarity with server-driven UI, module federation, or large-scale frontend library architecture.
  • E2E automation experience with Playwright — bonus points if you've taught an AI agent to write and maintain the tests for you.
  • Experience in payments, fintech, or trading products.
 
Perks & Benefits
  • Competitive total compensation package
  • L&D programs and Education subsidy for employees' growth and development
  • Various team building programs and company events
  • Wellness and meal allowances 
  • Comprehensive healthcare schemes for employees and dependants 
  • More that we love to tell you along the process!
 
OKX Statement:
OKX is committed to equal employment opportunities regardless of race, color, genetic information, creed, religion, sex, sexual orientation, gender identity, lawful alien status, national origin, age, marital status, and non-job related physical or mental disability, or protected veteran status. Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.
 
  • The salary range for this position is $178,888 - $268,333
  • The salary offered depends on a variety of factors, including job-related knowledge, skills, experience, and market location. In addition to the salary, a performance bonus and long-term incentives may be provided as part of the compensation package, as well as a full range of medical, financial, and/or other benefits, dependent on the position offered. Applicants should apply via OKX internal or external careers site.

Notice:
All official OKX vacancies are published on this website. While roles may appear on selected third-party platforms from time to time, information on other sites may be inaccurate or outdated. If in doubt, please apply directly through our official careers website.
Information collected and processed as part of the recruitment process of any job application you choose to submit is subject to OKX's Candidate Privacy Notice.

Skills Required

  • Strong computer science fundamentals and frontend essentials (TypeScript, React, modern toolchains such as Vite, browser internals, state management)
  • Good sense of web performance, responsive design, and web security
  • Hands-on experience building AI-assisted development systems (models, agents, harnesses, evaluation pipelines, CI gates)
  • Ability to instrument products, build tracking and experimentation foundations, and make data-driven decisions
  • Sharp problem-solving, self-driven, resilient, and able to deliver across cross-functional teams
  • BS/MS in Computer Science or related field, or equivalent evidence of exceptional ability
  • Proficiency in Mandarin Chinese
  • Shipped developer tooling, design systems, or open-source work adopted by other engineers
  • Familiarity with server-driven UI, module federation, or large-scale frontend library architecture
  • E2E automation experience with Playwright (bonus: taught an AI agent to write/maintain tests)
  • Experience in payments, fintech, or trading products

OKX Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about OKX and has not been reviewed or approved by OKX.

  • Fair & Transparent Compensation Pay is considered competitive or above market, especially in engineering, product, and legal roles across major hubs. This positioning is consistently cited as a major attraction for candidates.
  • Healthcare Strength Role descriptions indicate comprehensive medical, dental, vision, life, and disability coverage, with employer-paid premiums in some cases. Health coverage is highlighted alongside core benefits like PTO and parental leave.
  • Wellbeing & Lifestyle Benefits Allowances for education and fitness, meal perks and snacks, team-building budgets, and structured learning programs are described across locations. These extras enhance the total rewards package beyond base pay.

OKX Insights

Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: Singapore
1,073 Employees
Year Founded: 2017

What We Do

Founded in 2017, OKX is one of the world’s leading cryptocurrency spot and derivatives exchanges. OKX innovatively adopted blockchain technology to reshape the financial ecosystem by offering some of the most diverse and sophisticated products, solutions, and trading tools on the market. Trusted by more than 20 million users in over 180 regions globally, OKX strives to provide an engaging platform that empowers every individual to explore the world of crypto. In addition to its world-class DeFi exchange, OKX serves its users with OKX Insights, a research arm that is at the cutting edge of the latest trends in the cryptocurrency industry. With its extensive range of crypto products and services, and unwavering commitment to innovation, OKX’s vision is a world of financial access backed by blockchain and the power of decentralized finance.

Similar Jobs

Bestow Logo Bestow

Software Engineer

Big Data • Fintech • Information Technology • Insurance • Software
Remote or Hybrid
US
160 Employees
180K-200K Annually

Collectors Logo Collectors

Senior Software Engineer

Consumer Web • eCommerce • Machine Learning • Software • Sports • Analytics
Remote or Hybrid
California, USA
2246 Employees
141K-229K Annually
In-Office
Fremont, CA, USA
259 Employees
180K-242K Annually
In-Office
Fremont, CA, USA
259 Employees
140K-187K Annually

Similar Companies Hiring

Hanover Park Thumbnail
Artificial Intelligence • Fintech • Software • Financial Services
New York, New York
42 Employees
Kepler  Thumbnail
Fintech • Software
New York, New York
6 Employees
Onshore Thumbnail
Artificial Intelligence • Fintech • Software • Financial Services
New York, New York
60 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account