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JavaScript/React Frontend Engineer with strong REST API + Java, .NET or Node.js - Only W2

New York City, NY, US • Posted 2 hours ago • Updated 47 minutes ago

Contract W2

On-site

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Job Details

Skills

JavaScript
React
REST API
ES6+
React Hooks
Java / .Net / Node.js
cloud-based applications

Summary

Role: Javascript/React Frontend Engineer with strong REST API + Java, .NET or Node.js

Location: NYC, NY (Hybrid - 3 days a week in office is must)

Job Type: W2 Contract

Experience Level: Senior

Must-have:

JavaScript with React + strong Rest API experience with either Java, .Net or Node.js so needs to be fullstack.

Job Description:

Frontend-Focused Full-Stack Engineer (React + JavaScript) with strong Rest API experience with either Java, .Net or Node.js.
We are looking for Frontend-Focused Full-Stack Engineers to help enhance and scale a growing AdTech platform centered on digital advertising capabilities.
This role emphasizes modern frontend development with React and JavaScript, while contributing to backend integrations through REST APIs across multiple technologies (Java, .NET, Node.js).
You will play a key role in delivering high-performance user experiences for advertising platforms, including campaign management, targeting, measurement, and integrations across media and publishing ecosystems.

Key Responsibilities:

Frontend (Primary Focus)

Design and build modern, scalable frontend applications using React and JavaScript (TypeScript preferred).
Develop intuitive UI/UX for key AdTech capabilities, including:
Campaign management dashboards
Targeting and personalization interfaces
Reporting and analytics views
Optimize frontend performance, responsiveness, and usability.
Collaborate closely with Product, Marketing, and Design teams to deliver high-quality user-facing features.

Backend & API Collaboration (Secondary Focus)

Integrate frontend applications with REST APIs built in Java, .NET, or Node.js.
Contribute to API design discussions to ensure efficient frontend-backend interaction.
Support development and maintenance of backend services where needed, focusing on:
API contracts
Data flow optimization
Service integration

Platform & Engineering Contribution

Help scale and enhance an existing AdTech MVP platform to enterprise-grade solutions.
Participate in system design discussions, code reviews, and technical planning.
Work with cloud-based and distributed systems.
Support CI/CD processes, deployment pipelines, and platform reliability.
Contribute to integrations with advertising platforms such as Google Ad Manager, Koddi, and similar ecosystems.
Assist in troubleshooting production issues and improving performance and stability.

Required Qualifications:

6 8 years of software engineering experience, with strong emphasis on frontend development.
Strong expertise in:

JavaScript (ES6+)
React (including hooks, state management, component architecture)
Experience building complex, data-driven UI applications.
Experience working with:
REST APIs (integration and/or design)
Modern frontend tooling (e.g., Webpack, Vite, CI/CD pipelines)

Understanding of backend systems using one or more of:

Java
.NET
Node.js

Experience with cloud-based applications and services.
Familiarity with Agile development environments.
Understanding of CI/CD, DevOps practices, and application resiliency.

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.

Dice Id: 91091604
Position Id: 2026-4130
Posted 2 hours ago

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