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Senior Web UI Developer (React), New York

ION· Lab49 – Software Engineering
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New York, NY$160k - $185kFull-timePosted 3mo ago

About the role

Senior Web UI Developer to lead front-end development on complex projects for financial services clients, with a focus on React-based SPAs and delivering high-throughput, low-latency applications in an Agile environment.

Responsibilities

  • You will build applications that push the envelope when it comes to throughput, latency, resiliency, all the while making sure that we deliver on-time and within budget.

Qualifications

  • 5+ years of commercial-grade web/front-end development experience.
  • Strong experience in JavaScript, ES6/ES7, building Single Page Web Applications with modern frameworks, preferably using React.
  • Solid skills in HTML5 and CSS3.
  • Knowledge of the Agile Development Methodology.
  • Strong interpersonal and organizational skills.
  • Knowledge of, and strong demonstrated interest in, global financial markets and financial products is a strong plus.
  • Bachelors or Masters in Computer Science, Engineering, Physics, Math, or related work experience.

Skills

Required:JavaScript (ES6/ES7)ReactHTML5CSS3Agile

Benefits

  • Discretionary bonus, determined upon company and individual performance.
Last updated Oct 21, 2026. Interested? Apply on the company site.

About ION

Reinventing the way business is done through automation technology

ION financial software improves decision making, simplifies complicated processes and empowers you by providing the right tools.

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