Full Stack Developer

KellyMitchell Group; Greenwood Village (CO); On-site; USD 51,000 - 73,000; Full time

Benefits offered by this job

Medical, Dental, & Vision Insurance

Employee-Owned Profit Sharing (ESOP) 4

Job summary

KellyMitchell Group is seeking a hands-on Full Stack Developer IV to design, build, and maintain user-facing applications for the Elements platform. The role emphasizes React front-end and Python/Django back-end work, with API and data-layer ownership across the stack.

The position involves AI-assisted development tools, production-ready delivery, and collaboration with product, data engineering, QA, and platform teams.

Qualifications

• 5+ years building production web applications.
• 5+ years front-end development with React/JS/HTML/CSS.
• 3+ years Python, Django, and REST API development.
• 3+ years working with relational databases and SQL.
• 3+ years Git and CI/CD pipelines.
• 2+ years Docker and Kubernetes for deployment.
• Strong front-end architecture, state management, accessibility, and performance.
• Experience with WCAG accessibility and automated frontend testing.
• Experience using AI coding assistants in production work.
• Secure web development practices and OWASP awareness.
• Ability to own features end-to-end across UI, API, and data layers.

Responsibilities

• Design, develop, and maintain responsive web applications for the Elements platform.
• Build modern front-end apps using React, JavaScript/TypeScript, HTML5, and CSS3.
• Own features end-to-end across UI, state, REST APIs, and data layer.
• Develop and consume REST APIs with Python and Django REST Framework.
• Create data-intensive interfaces including tables, filters, dashboards, and charts.
• Leverage AI-assisted tools to accelerate development and testing while maintaining ownership.
• Develop UI concepts with AI-assisted design tools and translate to production interfaces.
• Guide frontend design systems and component libraries.
• Implement automated tests (unit, integration, end-to-end) with Playwright.
• Package and deploy apps with Docker, Kubernetes, and GitLab CI/CD.
• Monitor performance and troubleshoot across UI, API, and data layers.
• Collaborate with product, data engineering, QA, and platform teams; participate in code reviews and on-call.
• Provide mentorship on frontend development, accessibility, and responsible AI tooling.

Skills

React

JavaScript/TypeScript

HTML5/CSS3

Python/Django

SQL

CI/CD

Tools

Docker

Kubernetes

Git

REST API / Django REST Framework

Job description

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.