Front End Web Developer

ICF Olson; United States; Remote; USD 90,000 - 152,000; Full time

Job summary

ICF Next is seeking a frontend engineer to join a cross-functional team of frontend and full-stack engineers, UX designers, researchers, solution architects, and product managers. You will translate UX designs into production-ready components and connect interfaces to REST APIs and .NET services.

You will build accessible, responsive interfaces, implement client-side validation, write tests, and help modernize legacy UIs while strengthening the design system.

Qualifications

• Bachelor's degree or equivalent professional experience.
• 3+ years building resilient web apps with HTML, CSS, and JavaScript/TypeScript.
• 2+ years integrating REST APIs and JSON with web apps.
• 1+ year applying accessible development practices (Section 508 / WCAG).
• 1+ year writing automated frontend tests and using Git-based workflows.

Responsibilities

• Develop and maintain responsive web interfaces using HTML, CSS, JavaScript/TypeScript and modern frameworks.
• Translate designs into reusable, accessible components and integrate with REST APIs and .NET services.
• Build complex forms and data tables with client-side validation and workflows.
• Write unit, integration, and end-to-end tests for frontend behavior.
• Improve performance, accessibility, and maintainability through iterative refinement.

Skills

HTML/CSS/JS

React/Angular/Vue

REST APIs

Accessibility

Testing

Git workflows

Education

Bachelor's degree in CS/SE/IS

Tools

Git

Job description

At ICF Next, we are fearless in finding new ways to solve problems, relentless in making sure it pays off for our clients and committed to making a positive change in the world. Join our community of mission-driven creatives, communicators, strategists, and technologists to challenge the status quo.

The Team You'll work as part of a cross-functional team of frontend and full-stack engineers, user experience designers and researchers, solution architects, quality assurance specialists, accessibility experts, business analysts, product managers, data analysts, security specialists, and behavioral health subject matter experts. We partner with federal stakeholders to operate and modernize a mission-critical data collection and performance reporting platform used by grantees and program staff.

The Work In this individual contributor role, you will build responsive, accessible, and maintainable interfaces for complex data collection and reporting workflows. You will translate user experience designs into production-ready components, connect interfaces to .NET services and REST APIs, implement client-side validation and workflow behavior, and write automated tests that support dependable releases. A key part of the work is improving the usability and consistency of an active federal application while it continues to serve current users. You will help modernize legacy interfaces incrementally, strengthen the component and design system, improve performance and accessibility, and collaborate closely with backend engineers, designers, testers, product teams, and users.

Key Responsibilities

• Develop and maintain responsive web interfaces using HTML, CSS, JavaScript or TypeScript, and a modern component-based framework or library.
• Translate user experience designs, prototypes, and acceptance criteria into reusable, accessible, and production-ready components.
• Build complex forms, client-side validation, data tables, workflow interactions, notifications, and reporting interfaces for data-intensive applications.
• Integrate frontend applications with REST APIs, authentication services, analytics, and backend capabilities implemented in .NET.
• Write and maintain unit, integration, regression, and end-to-end tests for user interface behavior and critical workflows.
• Apply semantic HTML, keyboard support, screen-reader compatibility, color and focus requirements, Section 508, and WCAG standards throughout development.
• Improve frontend performance, browser compatibility, error handling, usability, and maintainability through measurement and iterative refinement.
• Participate in Agile planning, estimation, code reviews, demonstrations, release activities, and user acceptance testing support.
• Collaborate with design, accessibility, backend engineering, quality assurance, security, product, and client stakeholders.
• Maintain documentation for components, interaction patterns, build tooling, testing, and frontend development standards.

Required Qualifications

• Bachelor’s degree in computer science, software engineering, information systems, design technology, or a related field, or equivalent professional experience.
• 3+ years developing and supporting resilient, well-tested web applications using HTML, CSS, and JavaScript or TypeScript, including browser debugging.
• 2+ years integrating REST APIs and JSON, with working knowledge of HTTP and HTTPS/TLS.
• 2+ years using React, Angular, Vue, or a comparable framework to build responsive layouts, reusable components, and complex forms with conditional behavior, client-side validation, and error handling.
• 1+ year applying accessible development practices, including semantic HTML, keyboard navigation, and focus management, with working knowledge of Section 508 or WCAG requirements.
• 1+ year writing automated frontend unit tests, with exposure to integration and end-to-end testing, and using package managers, build tools, and Git-based workflows, including pull requests and code reviews.
• Authorization to work in the United States, ability to perform all work within the United States, and ability to obtain and maintain a favorable Public Trust determination and complete required background screening.

Preferred Qualifications

• Experience with the U.S. Web Design System or another mature design system, including extending accessible, reusable components.
• Experience incrementally modernizing legacy interfaces within .NET, ASP.NET MVC, or Razor-based applications.
• Experience building data-intensive interfaces, such as configurable data-entry workflows, complex data tables, dashboards, or reporting tools.
• Experience integrating interfaces with federated identity, single sign-on, multifactor authentication, or role-based access.
• Experience improving frontend performance and reliability through monitoring, analytics, error tracking, browser compatibility testing, and automated deployment pipelines.
• Experience supporting federal or public health applications, including familiarity with secure cloud environments, federal security and privacy requirements, or sensitive data handling.

Candidate AI Usage Policy

At ICF, we are committed to ensuring a fair interview process for all candidates based on their own skills and knowledge. As part of this commitment, the use of artificial intelligence (AI) tools to generate or assist with responses during interviews (whether in-person or virtual) is not permitted. This policy is in place to maintain the integrity and authenticity of the interview process. However, we understand that some candidates may require accommodation that involves the use of AI. If such an accommodation is needed, candidates are instructed to contact us in advance at [e-mail]. We are dedicated to providing the necessary support to ensure that all candidates have an equal opportunity to succeed.

Pay Range - There are multiple factors that are considered in determining final pay for a position, including, but not limited to, relevant work experience, skills, certifications and competencies that align to the specified role, geographic location, education and certifications as well as contract provisions regarding labor categories that are specific to the position. The pay range for this position based on full-time employment is: $89,649.00 - $152,404.00 Nationwide Remote Office (US99)

Need help? We're here: [e-mail]

Applicants needing an accommodation for disability or religious purposes in connection with the application process should contact [e-mail] for assistance.

Working at ICF ICF is a global advisory and technology services provider, but we’re not your typical consultants. We combine unmatched expertise with cutting-edge technology to help clients solve their most complex challenges, navigate change, and shape the future. We can only solve the world's toughest challenges by building a workplace that allows everyone to thrive.

We are an equal opportunity employer. Together, our employees are empowered to share their expertise and collaborate with others to achieve personal and professional goals.

For more information, please read ourEEO policy. We will consider for employment qualified applicants with arrest and conviction records.

Reasonable Accommodations are available, including, but not limited to, for disabled veterans, individuals with disabilities, and individuals with sincerely held religious beliefs, in all phases of the application and employment process.

To request an accommodation, please [e-mail] we will be happy to assist.

All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations.

Read more aboutworkplacediscriminationrights or our benefit offerings which are included in theTransparency in (Benefits) Coverage Act.

About ICF ICF is a global consulting and technology services company with approximately 9,000 employees, but we are not your typical consultants. At ICF, business analysts and policy specialists work together with digital strategists, data scientists and creatives. We combine unmatched industry expertise with cutting-edge engagement capabilities to help organizations solve their most complex challenges. Since 1969, public and private sector clients have worked with ICF to navigate change and shape the future. Learn more at icf.com.