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Selby Jennings

Full Stack Developer - Equity Research - Consultant

On site

New york, United states

$ 135 /hour

Freelance

13-03-2026

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Skills

Python C# SQL Research Architecture Enterprise Architecture SQL Server react Analytics .NET Redux

Job Specifications

NO C2C , NO 3RD PARTIES , NO SPONSORSHIP - W2 ONLY

6 month initial contract - possible evenutal renewal or T2H

The Role

We are hiring a senior, hands‑on Full Stack Engineer to sit directly with equity researchers and portfolio managers, building modern, user‑facing research tools that are used daily to drive investment decisions.

This is not a platform, infrastructure, or backend‑only role.
The focus is front‑office research tooling: fast iteration, clean UX, and pragmatic engineering.

You will:

Build and own React‑based research applications used by PMs and analysts
Design and implement data‑heavy dashboards, workflows, and analytics views
Partner directly with researchers to turn ideas into production features quickly
Develop Python and/or C# services that power research UIs
Work end‑to‑end: UI → APIs → SQL → production support

This role is best suited to engineers who enjoy shipping features, not designing frameworks.

What "Good" Looks Like (Non‑Negotiable): We are explicitly looking for engineers who meet most or all of the following:

Frontend‑first Full Stack

React is a primary skill, not "familiar with"
Experience building complex, data‑driven UIs
Strong state management (Redux, Context, or similar)
Experience with tables, grids, charts, or real‑time UI updates

Backend that supports the UI

Strong Python and/or C# (.NET) experience
RESTful API design and implementation
SQL Server / relational database experience (writing real queries, not just ORMs)

Financial markets context

Experience working in financial services (hedge fund, bank, asset manager, or market‑data firm)
Exposure to research, trading, or analytics tools
Familiarity with market data (Bloomberg, Refinitiv, Reuters, etc.) is a strong plus

Senior individual contributor

You are still hands‑on day‑to‑day
Comfortable owning features end‑to‑end
Able to work with ambiguity and move fast in a front‑office environment

What This Role Is Not

To be very clear, this role is not a fit if your background is primarily:

Backend / platform / infrastructure engineering
Desktop (WPF / WinForms)‑heavy development
Enterprise architecture or governance‑led roles
OMS / risk / regulatory systems with little modern web UI
Engineering management or team‑lead‑only positions

If React and user‑facing product work are not where you spend most of your time, this will not be the right role.

Why This Role Is Attractive

Work directly with PMs and researchers - no layers of bureaucracy
Build tools that directly influence investment decisions
Modern web stack with real ownership
High‑impact, high‑visibility work inside a top‑tier fund

About the Company

From Investment Banking, Risk Management, Quantitative Trading, and Insurance, to Investment Management, Sales & Trading, Technology, and Wealth Management, Selby Jennings supports the world's largest financial institutions to revolutionary fintech start-ups with all their hiring needs as a leading Financial Sciences and Services talent partner. If you would like to talk to us about your current talent needs, please request a call back here and one of our specialist consultants will call you back to discuss your hiring nee... Know more