Senior Front End Developer[remote]

Role: Senior Front End Developer

VISA: USC

Mode: Remote

Senior Front End Developer Responsibilities:

• Owning and maintain the legacy AngularJS + Node.js stack, while planning and executing upgrades to newer Angular frontend versions.
• Upgrading Angular and Node.js libraries across major and minor versions, resolve package conflicts, and enforce coding best practices.
• Refactoring large, monolithic legacy modules into maintainable, modular components.
• Designing, implement, and optimize APIs using Express.js for AngularJS/Angular apps.
• Developing and maintain AWS integrations via the AWS JavaScript SDK: Cognito, S3, SES, Secrets Manager, EC2, Config, etc.
• Developing future integrations with Okta SSO.
• Having a strong understanding of access & authorization, JWT, claims, roles & permissions, and secure frontend application design.
• Extending and enhance features that rely on Excel report generation, custom queueing systems, and ETL jobs.
• Working directly with pm2-based queue servers and cron-based scheduling, including large-memory reporting servers used for month-end and payfile processes.
• Managing queue scaling across small and large queue configurations, ensuring memory efficiency for Excel-heavy processes.
• Collaborating with backend, database, and DevOps engineers to ensure consistent architecture and secure integrations.
• Having experience with different types of AngularJS hosting on AWS EC2, Elastic Beanstalk, Amplify, and container-based deployments (e.g., OpenShift).
• Mentoring team members on AngularJS, Node.js, AWS SDK, and testing best practices

Senior Front End Developer Required Skills:

• 7+ years of direct hands-on development with AngularJS and Node.js applications.
• Must have personally built apps from scratch and also inherited/refactored legacy apps.
• Proven expertise in upgrading Angular/Node.js dependencies, fixing library conflicts, and migrating between versions.
• Extensive, hands-on expertise with Express.js, including:
• Designing and maintaining RESTful APIs for AngularJS/Angular apps.
• Session/state management and secure cookie handling.
• Middleware design for logging, security, and performance.
• Authentication flows: JWT, Cognito-Express, role/claims enforcement.
• Deep experience with the AWS JavaScript SDK (v3+):
• Cognito (auth, federated login, tokens)
• S3 (uploads, signed URLs, static hosting)
• SES (transactional/mime email delivery)
• Secrets Manager (secure credential management)
• EC2 + Config Service (cloud integrations)
• Deep experience consuming and integrating data from multiple APIs and SQL sources.
• Experience with Salesforce APIs.
• Solid experience with Excel/reporting libraries:
• Exceljs, xlsx-populate, Handling CSV/XLSX ingestion and generation.
• Direct experience with custom queue servers:
• pm2 configuration and management.
• Cron-based scheduling of imports, reports, and ETL.
• Scaling queue processes across small/large server configurations for month-end reporting.
• Database driver experience: MySQL, MSSQL, PostgreSQL.
• Strong grasp of Angular 17+, RxJS, and modern Angular testing frameworks (Karma, Jasmine, Protractor).
• UI frameworks: PrimeNG, PrimeFlex, Quill, File-Saver