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# Senior Full-Stack Engineer (Director)

- **Company:** 4 STAFFING INC
- **Location:** Newark, NJ, United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** HTML, JavaScript (Programming Language), Agile Methodology, Amazon Web Services, Confluence, JIRA, HTML5, User Authentication, Authentication Protocols, Cascading Style Sheets (CSS), ECMAScript, Design of User Interfaces, Human-Computer Interaction, PostgreSQL, Nginx, Node.Js, NoSQL, E2e Testing, Material Design, Next.js, Software Deployment, Software Engineering, SQL Databases, TypeScript, Website Wireframe, Transport Layer Security, Performance Testing, Modern Ui, ReactJS, Delivery Pipeline, Cypress (Programming Language), Git, Syntactically Awesome Style Sheets (SASS), Material UI, Information Technology, Figma, Bitbucket, Graphql, React Redux, JestJS, Restful APIs, Software Version Control, Docker, Jenkins, Microservices
- **Published:** October 26, 2026
- **Apply:** https://www.careerbuilder.com/job-details/senior-full-stack-engineer-director-newark-nj--c7bbe307-3ac3-4f7b-ac13-993320a1cfad

## About the Role

Financial Services, Finance, United States Citizen, Agile Programming Methodologies, Software Engineering, User Interface/Experience (UI/UX), Investment Analysis, Workflow Analysis, Amazon Web Services (AWS), Technical Leadership, * 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, * 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.

## Description

* 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