Frontend Engineer (React / JavaScript) – Execution Platform (Desk-Facing, Systematic Equities) - - 2 Headcount - High visibility - Greenfield - Up to $450k TC jobs in United States
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Mondrian Alpha · 9 hours ago

Frontend Engineer (React / JavaScript) – Execution Platform (Desk-Facing, Systematic Equities) - - 2 Headcount - High visibility - Greenfield - Up to $450k TC

positionNYC Metro Area
timeFull-time
remoteOnsite
seniorityMid Level
money$0/yr - $450K/yr

Mondrian Alpha is one of the world’s leading quantitative investment firms, specializing in systematic trading and execution. They are seeking a Frontend Engineer to develop a greenfield execution monitoring and control platform used directly by traders, focusing on building high-performance, desk-facing interfaces.

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H1B Sponsor Likelynote
Hiring Manager
Moses Lynn
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Responsibilities

Build and maintain modern web applications using JavaScript/TypeScript and React
Design intuitive, high-performance UI workflows used directly by trading stakeholders
Partner closely with traders and desk users to gather requirements and deliver real-time improvements
Collaborate with backend engineers to integrate UI with C# services and APIs
Contribute to engineering standards: code quality, performance, testing and reliability
Help shape UI architecture for scalability, maintainability and long-term evolution

Qualification

JavaScriptReactFrontend developmentC# / .NETReal-time systemsInterest in financial marketsCommunication

Required

Strong experience in JavaScript fundamentals and modern frontend development
Proven React experience (or similar modern frameworks)
Comfortable working in fast-moving, high-stakes environments where performance matters
Strong communication skills and ability to work directly with traders
A genuine interest in financial markets and front-office systems

Preferred

Willingness to learn backend and contribute to API integration (C# / .NET exposure is a plus)
Experience building UI for real-time systems (trading, monitoring, analytics, etc.)
Familiarity with performance optimisation, state management, and frontend architecture

Benefits

Market-leading compensation
High visibility
Strong ownership
Culture of engineering excellence

Company

Mondrian Alpha

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Mondrian Alpha takes pride in providing innovative human capital solutions, market intelligence and competitor analysis to our global buy side client base.
dateFounded in 2010
location
London, England, GBR
people-size51-200 employees
web-link
https://www.mondrian-alpha.com

H1B Sponsorship

Mondrian Alpha has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)

Funding

Current Stage
Growth Stage

Leadership Team

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Craig Courtman
Partner
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Company data provided by crunchbase