Full Stack Engineer

Apex Systems; Arlington (VA); On-site; USD 110,000 - 140,000; Full time

Benefits offered by this job

ESPP

401K with company match

Health Savings Account (HSA)

Employee Assistance Program (EAP)

Professional development & training

Job summary

Everforth Apex is seeking a Full Stack Engineer to join our Arlington, VA team onsite. You will build modern React/TypeScript front-ends and real-time interfaces, collaborating directly with federal clients in a consulting capacity to deliver scalable solutions.

The role emphasizes AI-enabled UX, streaming data, and end-to-end delivery in a fast-paced environment, with emphasis on performance, code quality, and modern engineering practices.

Qualifications

• Proficiency in React with TypeScript is required.
• Experience building real-time applications using WebSockets or SSE.
• Strong testing discipline using Playwright, Cypress, and Jest.

Responsibilities

• Build modern user interfaces and component-based apps focusing on React and TypeScript.
• Develop real-time applications with WebSockets/SSE for streaming data.
• Connect front-end to APIs, microservices, and cloud platforms for performance and scalability.
• Apply modern delivery practices with TDD using Playwright, Cypress, and Jest.
• Develop AI-enabled products such as copilots and conversational UIs.
• Collaborate directly with customers in a consulting capacity to deliver scalable solutions.

Skills

React

TypeScript

WebSockets

Server-Sent Events

Playwright

Cypress

Jest

Tools

Playwright

Cypress

Jest

Job description

Job#: 3042158

Job Description:

Full Stack Engineer

Location: Arlington, Virginia (Onsite)

Candidates must be able to obtain and/or maintain a Department of Defense TS/SCI clearance as a condition and continuation of employment.

Role Overview

We are seeking a Full Stack Engineer for a front-end focused role that involves building modern user interfaces and component-based applications. The ideal candidate will be a product engineer with experience in real-time applications and an interest in building AI-enabled user experiences for federal customers. This position requires operating within a consulting environment and collaborating directly with customers.

Key Responsibilities

• Build modern user interfaces and component-based applications with a strong focus on React and TypeScript.
• Develop real-time applications using technologies such as WebSockets and Server-Sent Events (SSE) for streaming data and event-driven interfaces.
• Connect front-end applications to APIs, microservices, and cloud platforms while ensuring performance and scalability.
• Implement modern software delivery practices, including Test-Driven Development (TDD), using tools like Playwright, Cypress, and Jest.
• Develop AI-enabled products, such as copilots, conversational UIs, and workflow-based applications.
• Collaborate directly with customers in a consulting capacity to deliver scalable solutions.

Required Qualifications

Technical Skills: A strong foundation in React and TypeScript is required. Experience with real-time application development tools such as WebSockets and SSE is necessary. Proficiency in testing frameworks like Playwright, Cypress, and Jest is also required.

Preferred Qualifications

• Experience building AI-enabled products, copilots, or conversational UIs.
• Background in consulting or client-facing engineering roles.
• Familiarity with modern engineering practices over traditional government contractor methodologies.

Everforth Apex is a world-class IT services company that serves thousands of clients across the globe. When you join Everforth Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRateds Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.

Everforth Apex Benefits Overview: Everforth Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Everforth Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Everforth Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Everforth Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Everforth Apex team member can provide.

Everforth Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, sex (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, sexual orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Everforth Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law.

If you require an accommodation under the Americans with Disabilities Act to participate in an interview with a virtual recruiter or to use our website for a search or application, please contact our Benefits Department at [email protected] or 804-523-8228. Please note that this contact information is strictly to be used for medical ADA accommodations and that no other inquiries will be answered.

UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Everforth Apex Systems.