Web UI Developer

ION

On-site

New York, NY

Full-time

Mid Level

Senior

5+ yrs

$160k–$185kPosted 4w ago

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Real job — pulled straight from ION’s careers page · Verified July 18, 2026 · No reposts.

ION is hiring a Web UI Developer — a full-time, based in New York, NY role ($160k–$185k). Apply directly on ION's careers page below.

Senior Web UI Developer (React), New York

Team: Software Engineering

Location: New York

Commitment: Full-time

Workplace Type: onsite

Lab49 has an opportunity available for a Web UI Developer to lead work on complex and challenging projects to drive transformative change for our top-tier Financial Services clients. Operating in an Agile environment, the Web UI Developer will have strong experience developing software in various front-end frameworks, with a focus on design and build the next generation of technology.

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.

Required Skills and Experience

5+ years of commercial-grade web/front-end development experience.
Strong experience in JavaScript, ideally ES6 or 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.

We are hiring across multiple levels for this job.

The base salary range across different levels are -

• Mid to Senior level – $160,000 - $185,000

Placement within the range provided above is based on the individual’s relevant experience and skills for the role and level. We are hiring across multiple levels for this job.

Base salary is only one component of our total compensation package. Employees may be eligible for a discretionary bonus, which is determined upon company and individual performance.

Salary range disclosure as required by S9427A when hiring in New York.

Lab49 is a specialist strategy, design, and technology consulting company dedicated to the financial services industry. We were founded in 2002 to fill a need in the Financial Technology marketplace for high-end execution and reliable delivery of technology projects.

Our consultants are experts in strategy, user experience, architecture, engineering, and delivery management. We combine knowledge of the latest trends in technology with deep domain expertise to deliver innovative solutions with accelerated time-to-market.

We have office hubs in Midtown Manhattan, Washington DC, London, Budapest, New Delhi and Sydney.

Lab49/ION is committed to maintaining a supportive and inclusive environment for people with diverse backgrounds and experiences. We respect the varied identities, abilities, cultures, and traditions of the individuals who comprise our organization and recognize the value that different backgrounds and points of view bring to our business.

Lab49/ION adheres to an equal employment opportunity policy that prohibits discriminatory practices or harassment against applicants or employees based on any legally impermissible factor.

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Frequently asked questions

What is the salary for Web UI Developer at ION?

The estimated salary range for Web UI Developer at ION is $160,000 - $185,000 USD per year.

What skills are required for Web UI Developer at ION?

The required skills for Web UI Developer at ION include: JavaScript, React, HTML, CSS, Agile.

What is the seniority level for Web UI Developer at ION?

Web UI Developer at ION is a Mid Level / Senior level position.

How do I apply for Web UI Developer at ION?

You can view the full description and apply for Web UI Developer at ION on EchoJobs: https://echojobs.io/job/ion-senior-web-ui-developer-react-new-york-lor5g.

Job description