Senior Full-Stack Engineer (Director)

4 Staffing Corp is a leading global investment technology organization, and they are seeking a Director-Level Full Stack Software Engineer to join their team. This role involves building next-generation applications that support complex investment, analytics, and portfolio workflows in an Agile environment.

Responsibilities:

• 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
• 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