Full Stack Developer

Job Summary Our client, a leading communication services provider, is seeking a hands-on Full Stack Developer IV to design, build, and maintain user-facing applications and supporting services for the Elements platform. The ideal candidate has strong front-end development experience with React, JavaScript/TypeScript, HTML, and CSS, along with back-end experience using Python, Django, REST APIs, and SQL. This role is well suited for a senior engineer who enjoys owning features end to end - from designing the user experience and building the front end through APIs and data layers. The role will also leverage AI-assisted development and design tools, with an emphasis on taking proofs of concept all the way through to reliable, production-ready solutions. Design, develop, and maintain responsive and accessible web applications for the Elements platform. Build modern front-end applications using React, JavaScript/TypeScript, HTML5, and CSS3. Own features end to end across the UI, application state, REST APIs, and data layer. Develop and consume REST APIs using Python and Django REST Framework. Build data-intensive interfaces including large tables, filtering and search, dashboards, charts, and asynchronous data experiences. Use AI-assisted coding tools to accelerate development, testing, refactoring, and documentation while validating and maintaining ownership of the resulting code. Use AI-assisted design tools to create UI concepts, wireframes, and mockups and translate them into production-ready interfaces. Take proofs of concept from initial hypothesis and prototype through user validation, testing, and production deployment. Help establish and maintain reusable front-end design systems and component libraries. Develop automated tests, including unit, integration, and end-to-end testing using tools such as Playwright. Package and deploy applications using Docker, Kubernetes, and GitLab CI/CD. Monitor application performance and troubleshoot issues across the front-end, API, and data layers. Collaborate with product, data engineering, QA, and platform engineering teams to deliver reliable solutions. Participate in code reviews, incident response, and on-call support. Provide technical guidance and mentorship around front-end development, accessibility, and responsible use of AI development tools. Required Skills / Experience (Must-Haves) 5+ years of hands-on experience building production web applications. 5+ years of modern front-end development experience using JavaScript/TypeScript, HTML5, CSS3, and a component-based framework such as React. 3+ years of experience with Python, Django, and REST API development. 3+ years of experience working with relational databases and SQL. 3+ years of experience with Git and CI/CD pipelines. 2+ years of hands-on experience with Docker and Kubernetes and deploying containerized applications. Strong understanding of front-end architecture, state management, responsive design, and performance optimization. Experience building accessible web applications using WCAG standards. Experience with automated front-end testing, preferably Playwright. Hands-on experience using AI coding assistants and/or AI design tools in production work. Strong understanding of secure web development practices, including authentication, authorization, input validation, and common OWASP vulnerabilities. Strong troubleshooting and problem-solving skills across the UI, API, and data layers. Ability to work independently, manage multiple priorities, and take ownership of technical solutions. Preferred Skills / Experience (Nice-to-Haves) Experience establishing or scaling a design system or shared component library. Experience with Figma or similar design tools and AI-assisted design-to-code workflows. Experience with AWS, particularly S3, and Linux environments. Experience with data visualization tools such as Grafana or charting libraries such as D3, Recharts, or ECharts. Experience building internal engineering, operations, or support applications. Experience with CPE, telecom, networking, or network device data. Experience with Apache Airflow or other workflow orchestration platforms. Experience working in highly available production environments with SLOs, runbooks, and incident response. Experience mentoring engineers or leading technical design reviews. Experience defining standards or best practices for responsible AI-assisted development. Key Competencies & Behaviors Full-Stack Application Ownership Front-End Architecture Expertise Modern React Development API & Data Integration AI-Enhanced Development User-Centered Design Thinking Work Environment Location: Greenwood Village, CO Work Arrangement: Onsite Compensation & Benefits Pay Range: The approximate pay range for this position is between $51.00 and $73.00. Please note that the pay range provided is a good faith estimate. Final compensation may vary based on factors including but not limited to background, knowledge, skills, and location. We comply with local wage minimums. Medical, Dental, & Vision Insurance Plans Employee-Owned Profit Sharing (ESOP) 401K offered About KellyMitchell At KellyMitchell, our culture is world class. We’re movers and shakers! We don’t mind a bit of friendly competition, and we reward hard work with unlimited potential for growth. This is an exciting opportunity to join a company known for innovative solutions and unsurpassed customer service. We're passionate about helping companies solve their biggest IT staffing & project solutions challenges. As an employee-owned, women-led organization serving Fortune 500 companies nationwide, we deliver expert service at a moment’s notice. #J-18808-Ljbffr