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Senior Full-Stack Engineer (Director)

Company:
4 Staffing Corp
Location:
Newark, NJ, 07175
Posted:
April 07, 2026
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Description:

About the job Senior Full-Stack Engineer (Director)

Director-Level Full Stack Engineer (React / Node.js)

Location: Remote or Hybrid (U.S.)

Employment Type: Full-Time

Industry: Financial Services / Investment Technology

US Citizen/Green Card holders only

Our client, a leading global investment technology organization, is seeking a Director-Level Full Stack Software Engineer to join a highly visible team responsible for building next-generation applications that support complex investment, analytics, and portfolio workflows. This role is ideal for an engineer who thrives in an Agile environment, enjoys architecting scalable solutions, and is passionate about delivering exceptional user experiences.

What You'll Do

Design, develop, and enhance custom UI components and full-stack features aligned with project requirements

Work within modern AWS-based development environments, including CLI and sandbox/local setups

Build high-quality front-end applications using React, TypeScript, and modern design systems

Collaborate with Tech Leads, Product Owners, and Business Analysts to transform business needs into scalable, production-ready applications

Balance multiple initiatives and workstreams in a fast-paced environment

Research emerging technologies, build proofs of concept, and help guide architectural decisions

Deliver intuitive and elegant user interfaces using Material Design & MUI

Participate in the creation of personas, user scenarios, wireframes, prototypes, and high-fidelity UI mockups

Ensure solutions meet business goals through user testing, performance validation, and continuous improvement

Requirements:

10+ years of full-stack development experience, ideally within high-scale or data-intensive environments

Expert-level proficiency with React/Next.js, Node.js, TypeScript, and TurboRepo

Experience with GraphQL, REST APIs, and microservices

Strong command of HTML, CSS, JavaScript, CSS Modules, Storybook, and modern component libraries (e.g., Radix UI)

Hands-on experience with SQL/NoSQL databases (PostgreSQL, Graph DB, etc.)

Strong experience with Docker and deploying applications in AWS cloud environments

Solid understanding of UI/UX design principles and ability to collaborate with design teams

Proficiency with Git and enterprise version control workflows

Experience implementing token-based authentication and modern security patterns

Background in building scalable, high-availability applications

Experience writing unit, integration, and end-to-end tests across the full stack

Familiarity with automated testing frameworks such as Cypress, Test containers, and Vitest

Preferred:

Experience with Figma, ReactFlow, Redux, Jotai, and advanced design systems

Background in decomposing monoliths into microservices

Knowledge of authentication mechanisms and security best practices

Familiarity with Jira, Confluence, Bitbucket, Jenkins, and enterprise DevOps pipelines

Experience working within the SAFe Agile methodology

Bachelors degree in Computer Science, Engineering, Finance, Economics, or a related field

Experience using AI-assisted development workflows, including generating components from design systems

Highly Preferred:

React/Redux, TypeScript, Node.js, D3

PNPM, SASS/CSS3, HTML5, JSX, ES6

Jest/Vitest, Cypress, Testcontainers

NGiNx and AWS cloud services

Strong grounding in React fundamentals (components, hooks, lifecycle)

Understanding of authentication, authorization, SSL, and other modern security concepts

Who Thrives Here

This role suits someone who:

Enjoys solving complex technical and data challenges

Thrives in a collaborative, fast-paced Agile environment

Boldly adopts new technologies and champions engineering excellence

Is passionate about building beautiful, intuitive applications that

user love

If you're an accomplished full-stack engineer looking for an opportunity to influence architecture, shape user experiences, and build high-impact applications in the financial domain, wed love to connect.

Apply