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Front End Engineer

Mondo
McLean, Virginia, US$40 – $55Posted March 19, 2026

Salary Context

This role offers $40–$55. The median for Mid-level frontend roles is $100k–$135k (based on 138 listings). 100% below median.

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JavaScriptTypeScriptJavaReactReduxAWSGitJiraFigmaPostmanRESTAgileMicroservicesAPI

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Job Description

Apply now: Frontend Engineer (Junior & Mid-Level), location is Remote. The start date is April 1 for this contract position.

Job Title: Frontend Engineer (Junior & Mid-Level)

Location-Type: 100% Remote

Start Date Is: April 1, 2026

Duration: Contract (6 Months w/ option to extend)

Eligible Work Authorization Status: US-Citizen or Green Card (no sponsorship required)

W2 Pay Rate Range: $40/hr - $55/hr

Job Description

The Frontend Engineer will support the client's product engineering teams by developing, enhancing, and maintaining scalable frontend components and user interfaces while contributing to a modern, microservices-based platform supporting high-traffic digital experiences.

Day-to-Day Responsibilities:

  • Develop and maintain frontend components using React and modern JavaScript/TypeScript practices
  • Build responsive, accessible UI components such as calendars, order forms, data cards, and input workflows
  • Consume and test APIs using tools such as Postman and integrate frontend services with backend endpoints
  • Troubleshoot bugs, performance issues, and UI inconsistencies across a shared codebase
  • Collaborate with product, design, and backend teams to implement Figma-based designs
  • Participate in Agile ceremonies including sprint planning, standups, and sprint demos
  • Contribute to shared component libraries and design systems used across multiple teams
  • Ensure mobile responsiveness and cross-browser compatibility
  • Manage state and asynchronous data flows within frontend applications
  • Support ongoing platform maintenance and enhancements across multiple product areas
  • Review peer code and contribute to best practices around code quality and testing

Requirements

  • Must-Have Skills/Experiences:
  • 2 years of Frontend engineering experience
  • Strong experience with React and modern JavaScript (ES6 )
  • Experience with HTML5, CSS3, and responsive/mobile-first development
  • Experience with state management (Redux or similar patterns)
  • Experience consuming REST APIs and working with asynchronous data (fetch, promises, etc.)
  • Experience using Postman or similar API testing tools
  • Familiarity with Git version control workflows
  • Experience working in Agile environments using tools such as Jira or Confluence
  • Understanding of component-based architecture and reusable UI patterns
  • Ability to debug and resolve frontend defects in complex applications
  • Strong communication skills and ability to collaborate across teams
  • Bachelor's degree in Computer Science or related field (or equivalent experience)
  • Nice-to-Have Skills/Experiences (NOT required, but a plus!) :
  • Experience with Golang, Java, or other OO programming languages - with a solid understanding of OO design principles, concurrency, multi-threading, performance tuning, and observability.
  • Experience contributing to design systems or component libraries
  • Design sensibility and experience partnering with UX/UI teams
  • Experience with build tooling and frontend pipelines
  • Familiarity with cloud environments such as AWS
  • Exposure to backend technologies or microservices environments - crafting resilient, high-scale, low-latency, distributed microservices in production environments.
  • Experience reviewing code and mentoring junior engineers
  • Experience working in large, shared repositories
  • Exposure to GenAI tools or experimentation with AI-assisted development

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