Full Stack (UI Lean) Engineer

Selby Jennings; New York (NY); On-site; USD 140,000 - 190,000; Full time

Job summary

Selby Jennings seeks a Lead UI/Full Stack Engineer in New York to build real-time dashboards and internal analytics tools. You will create modern SPAs, APIs, and data-driven workflows that drive visibility for management, product, and business teams.

Collaboration with stakeholders will shape dashboards for PnL, positions, and operational metrics. You’ll own UI and backend components, work across React, TypeScript, and data technologies, and contribute to scalable architectures in a

Qualifications

• Experience building dashboards or data-driven applications.
• Strong experience with APIs and data pipelines.
• Excellent communication with stakeholders to define requirements.
• Finance domain experience is not required but familiarity helps.

Responsibilities

• Create real-time dashboards and analytics tools for management and product teams.
• Transform complex business requirements into intuitive applications.
• Build data-intensive UI that exposes PnL, positions, and metrics.

Skills

React

JavaScript/TypeScript

HTML/CSS

Problem-solving

Communication

Linux/Unix

Tools

Next.js

WebSockets

Socket.io

Ag-Grid

D3.js

APIs

Job description

Currently working with a buyside firm who is looking for the Lead UI/Full Stack Engineer for a new product line. This role sits at the intersection of software engineering, data analytics, and product development. You’ll create real-time dashboards, workflow tools, and analytical applications used by management, product, and business teams to monitor PnL, positions, operational metrics, and key business activities.

You’ll work directly with stakeholders to transform complex business requirements into intuitive, data-driven applications that provide critical visibility across the organization.

What You’ll Build

• Real-time dashboards that provide management with a clear view of firmwide PnL, positions, and business metrics
• Internal analytical tools that support product, platform, and operational workflows
• Modern single-page applications using React and contemporary UI frameworks
• Data-intensive applications that turn complex datasets into actionable insights
• Workflow automation tools that improve efficiency and operational transparency
• APIs and services that power business-critical applications

Ideal Background

• 2-5+ years of software engineering or web development experience
• Strong React, JavaScript/TypeScript, HTML, and CSS experience
• Experience in Next.JS, WebSockets, Socket.io, Ag-Grid, D3.JS is highly preferred
• Advanced SQL and relational database knowledge
• Proficiency in Python, Java, or C++
• Experience building dashboards, data products, or internal business applications
• Strong problem-solving and communication skills
• Experience working with APIs, data pipelines, and modern web architecture
• Comfortable in Linux/Unix environments
• Finance experience is not required. This is an excellent opportunity for engineers who enjoy building impactful products, working closely with end users, and solving complex data and workflow challenges at scale.