Frontend Developer

Alderson Loop; Maryland; On-site; USD 120,000 - 150,000; Full time

Job summary

Alderson Loop is seeking a Front-End Engineer to support a large-scale modernization initiative for a leading payroll and benefits organization. This role emphasizes React and modern cloud-native development in a fast-paced, collaborative environment.

The ideal candidate will contribute to transitioning from a legacy .NET monolith to a React + AWS-driven platform, shaping the future of the platform with strong front-end fundamentals and the ability to work from loose requirements.

Qualifications

• 5+ years of experience in front-end engineering or full stack development with strong front-end focus.
• Ability to build polished, scalable front-end solutions beyond basic forms and page layouts.
• Strong understanding of UI/UX principles and ability to work from loosely defined requirements.
• Comfortable working in fast-paced environments with evolving priorities, strong communication skills and ability to collaborate across technical and non-technical teams.

Responsibilities

• Support the development of a next-generation platform built on top of an existing legacy system.
• Create scalable, maintainable UI components and front-end architecture.
• Help improve usability, accessibility, and overall user experience across customer-facing applications.
• Work from product specs, examples, and general direction rather than fully refined design handoffs.
• Bring strong UI/UX judgment and design awareness to help shape the final product.
• Collaborate with product owners and engineering teams to iterate quickly and improve functionality.
• Support the transition from legacy .NET systems to a modern cloud-native environment.
• Leverage AI tools, coding assistants, and agentic workflows to improve development speed and efficiency.
• Help establish repeatable front-end patterns, scalable workflows, and stronger development practices.
• Partner closely with lead engineers, product owners, and technical leadership.
• Occasionally support or integrate with legacy .NET environments when needed.
• Participate in a highly collaborative, Agile-style delivery environment with fast iteration cycles.

Skills

React-focused

Front-end engineering

UI/UX principles

Collaborative teamwork

Agile delivery

Tools

Storybook

AWS

Serverless (Lambda)

GitHub

Job description

Alderson Loop is seeking a Front-End Engineer to support a large-scale modernization initiative for a leading payroll and benefits organization. This role is ideal for a React-focused developer who thrives in fast-paced environments and enjoys building modern, scalable applications from the ground up.

The team is transitioning from a long-standing legacy .NET monolith into a modern React + AWS-driven platform, and they are looking for someone who can help accelerate that transformation. The ideal candidate is someone with strong React experience, solid front-end fundamentals, and the ability to work from loose requirements while helping shape the future of the platform.

This person will work closely with senior engineering leadership and broader product and development teams to build polished, user-friendly solutions while contributing to a highly collaborative, startup-like environment.

Key Responsibilities

Front-End Development

• Support the development of a next-generation platform built on top of an existing legacy system
• Create scalable, maintainable UI components and front-end architecture
• Help improve usability, accessibility, and overall user experience across customer-facing applications
• Work from product specs, examples, and general direction rather than fully refined design handoffs
• Bring strong UI/UX judgment and design awareness to help shape the final product
• Collaborate with product owners and engineering teams to iterate quickly and improve functionality
• Support the transition from legacy .NET systems to a modern cloud-native environment
• Leverage AI tools, coding assistants, and agentic workflows to improve development speed and efficiency
• Help establish repeatable front-end patterns, scalable workflows, and stronger development practices
• Partner closely with lead engineers, product owners, and technical leadership
• Occasionally support or integrate with legacy .NET environments when needed
• Participate in a highly collaborative, Agile-style delivery environment with fast iteration cycles

Required Qualifications

• 5+ years of experience in front-end engineering or full stack development with strong front-end focus
• Ability to build polished, scalable front-end solutions beyond basic forms and page layouts
• Strong understanding of UI/UX principles and ability to work from loosely defined requirements
• Comfortable working in fast-paced environments with evolving prioritiesStrong communication skills and ability to collaborate across technical and non-technical teamsTeam-oriented mindset with the ability to move quickly and independently

  Preferred Qualifications

  • Exposure to AWS environments and cloud-native application development
  • Familiarity with serverless concepts such as Lambda and modern cloud architecture patterns
  • Experience with design systems, reusable UI patterns, or tools like Storybook
  • Exposure to AI coding assistants, agentic workflows, or AI-enabled development tools
  • Familiarity with Python, .NET, or legacy Microsoft environments
  • GitHub, portfolio, or code samples demonstrating front-end work