Full Stack Developer, UI/UX

C. Mack Solutions

. Build, extend, and maintain responsive, production-grade web applications primarily using React and TypeScript .

Posted 9/29/2026full-timeAshburn • Virginia • United StatesMid-LevelSeniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in building responsive web applications using React and TypeScript, with a strong focus on integrating front-end and back-end technologies such as Java 17 and PostgreSQL. Proven ability to mentor team members and ensure product quality within an Agile development environment.

Highest-signal resume keywords

React DevelopmentTypeScript ProficiencyJava 17/Spring Boot IntegrationPostgreSQL ExperienceCI/CD Pipeline Management

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

JavaScriptHTMLCSSKendo UIAngularResponsive DevelopmentUnit TestingORM (Hibernate)Amazon AWSAgile Methodologies

Soft Skills

Effective CollaborationExcellent CommunicationTeam-OrientedSelf-Starter MindsetProblem-Solving

Tools & Technologies

JIRAConfluenceGitLabHarnessJenkins

Certifications & Qualifications

Design Thinking Certifications

Industry Keywords

Web AccessibilitySection 508 StandardsInformation ArchitectureLean ProcessesAgile Principles

Tech Stack

Tools & technologies

AngularAWSHibernateJavaJavaScriptJenkinsPostgresReactSpringSpring BootSpringBootTypeScript

About the role

Key responsibilities & impact

Build, extend, and maintain responsive, production-grade web applications primarily using React and TypeScript
Integrate front-end code with Java 17/Spring Boot backend services and APIs, with data persisted in PostgreSQL
Write clean, tested, and maintainable code
Participate in code reviews, unit testing, and CI/CD pipelines using JIRA, Confluence, GitLab, and Harness
Diagnose and resolve technical issues affecting UI performance, reliability, and maintainability
Translate wireframes, mockups, and design specifications into responsive, accessible front-end implementations
Partner with designers, product owners, and stakeholders to maintain consistent look-and-feel and user experience across applications
Determine requirements feasibility and collaborate on implementation approaches with the functional team
Ensure product quality and timely delivery
Provide advice and guidance, resolve problems, and provide periodic performance reports
Work independently and efficiently within an Agile software development environment
Mentor junior team members

Requirements

What you’ll need

Must live within the DC, MD, VA area
U.S. Citizenship is required
Must be able to obtain a CBP/DHS Public Trust clearance
5+ years building production web applications, including hands-on, day-to-day development in React and TypeScript
Strong proficiency in JavaScript, HTML, HTTP, and CSS
Experience with a component/UI framework such as Kendo UI or Angular
Working experience with Java 17, Spring/Spring Boot, PostgreSQL, an ORM such as Hibernate, and Amazon AWS
Experience with Continuous Integration / Continuous Deployment tools such as Harness, Jenkins, GitLab, or Bamboo
Experience with responsive and mobile-first development
Experience using data, validation, and feedback strategies backed by qualitative and quantitative testing
Ability to translate wireframes, mockups, and design specifications into working, production-quality front-end code
Ability to understand trade-offs between design intent, technical feasibility, and long-term maintainability
Experience developing applications, from consumer-facing to internal tools
Ability to stay current on important industry and customer trends
Effective collaboration with stakeholders inside the company and customer groups
Ability to work effectively in an agile development environment
Excellent written and verbal communication skills
Highly responsible, team-oriented individual with strong work ethic and a self-starter mindset
Preferred: Experience with Angular in addition to React
Preferred: Proven experience designing for or implementing web accessibility, including Section 508 standards
Preferred: Experience with information architecture or design systems
Preferred: Ability and interest in educating others on front-end development best practices
Preferred: Advanced understanding of Lean processes and Agile principles
Design Thinking certifications are a plus, not required

Benefits

Comp & perks

Agile development environment
Mentoring opportunities and responsibility for providing guidance to junior team members