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Mid Frontend Developer Jobs in Colorado (NOW HIRING)

DAT

Senior Software Engineer, Frontend

Denver, CO · On-site

$126K - $166K/yr

Actively mentor junior and mid-level engineers through code reviews, pair programming, and ... Define and implement frontend monitoring and alerting strategies using Datadog to track performance ...

DAT

Senior Software Engineer, Frontend

Denver, CO · On-site

$126K - $166K/yr

Actively mentor junior and mid-level engineers through code reviews, pair programming, and ... Define and implement frontend monitoring and alerting strategies using Datadog to track performance ...

Applied Research Solutions

Software Engineer

Littleton, CO · On-site

$160K - $180K/yr

ARS s is seeking Mid - Senior Front-End developers to support a cutting-edge program supporting the National Geospatial Intelligence Agency in the Denver, Colorado area. The Senior Front-End Web ...

Business Integra

iOS Developer

Denver, CO · On-site

$53.25 - $73.25/hr

... all mid-level positions and they will be starting off as more of hands on resources and taking on ... This person would ideally have a background in front-end Java development. • MUST HAVE A HIGHLY ...

Leidos

Mid-Level Software Engineer

Englewood, CO · On-site

Go * Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django ... Certifications such as AWS Certified Developer, Security+, SAFe Practitioner or similar. #Chinook ...

Leidos

Mid-Level Software Engineer

Englewood, CO · On-site

$87K - $157K/yr

Go * Front-end and Back-end Frameworks: React, Angular, Vue.js, jQuery, Spring Boot, Django ... Certifications such as AWS Certified Developer, Security+, SAFe Practitioner or similar. #Chinook ...

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All JobsMid Frontend Developer JobsMid Frontend Developer Jobs in Colorado

Mid Frontend Developer information

What is a mid frontend developer?

Mid Frontend Developers are professionals who specialize in building and maintaining the user-facing parts of web applications, typically with 2-4 years of experience. They are responsible for translating design mockups into interactive websites or apps using technologies like HTML, CSS, and JavaScript frameworks such as React, Angular, or Vue.js. Their role often involves collaborating with designers and backend developers, optimizing applications for speed and responsiveness, and ensuring cross-browser compatibility. Unlike junior developers, mid-level developers are expected to work more independently, solve moderately complex problems, and contribute to code reviews and project planning.

What are the key skills and qualifications needed to thrive as a mid frontend developer?

To thrive as a Mid Frontend Developer, you need strong proficiency in HTML, CSS, and JavaScript, along with experience in modern frameworks like React, Angular, or Vue and a relevant degree or equivalent experience. Familiarity with version control systems (such as Git), build tools, and UI design libraries is commonly expected. Strong problem-solving, effective communication, and a collaborative mindset help you stand out in team settings. These skills ensure you can create high-quality, user-friendly interfaces that work well in dynamic, cross-functional development environments.

What are some common challenges faced by mid frontend developers when working on cross-functional teams?

Mid-level frontend developers often collaborate with backend developers, designers, and product managers, which can sometimes lead to challenges in communication and aligning on project requirements. Balancing the need for delivering visually appealing, responsive interfaces while ensuring performance and accessibility can also be demanding. Additionally, adapting to evolving frameworks or integrating new tools as decided by the team may require continuous learning and flexibility. Successful mid-level frontend developers proactively seek feedback, clarify requirements early, and stay updated on best practices to navigate these challenges.

What is the difference between Mid Frontend Developer vs Junior Frontend Developer?

AspectMid Frontend DeveloperJunior Frontend Developer
Experience2-4 years0-1 year
SkillsProficient in HTML, CSS, JavaScript, frameworks like React or Angular, and basic version controlBasic knowledge of HTML, CSS, JavaScript, and some frameworks
ResponsibilitiesDeveloping features, optimizing performance, collaborating with designers and backend teamsAssisting in coding, fixing bugs, learning project workflows
Work EnvironmentIndependent task handling, code reviews, team collaboration

The Mid Frontend Developer typically has more experience and handles complex tasks independently, while the Junior Frontend Developer focuses on learning, assisting, and gaining foundational skills. The mid-level role requires a deeper understanding of frameworks and project workflows, making it suitable for those with some professional experience in frontend development.

What are popular job titles related to Mid Frontend Developer jobs in Colorado?

For Mid Frontend Developer jobs in Colorado, the most frequently searched job titles are:

What job categories do people searching Mid Frontend Developer jobs in Colorado look for?

The top searched job categories for Mid Frontend Developer jobs in Colorado are:

What cities in Colorado are hiring for Mid Frontend Developer jobs?

Cities in Colorado with the most Mid Frontend Developer job openings:

Mid Frontend Developer jobs near you

Mid-Senior Full Stack Developer

CACI International Inc

Aurora, CO • On-site

Full-time

Re-posted 25 days ago

Job description

Job Summary:
CACI International Inc is seeking a Mid-Senior Full Stack Developer to design and build the primary touchpoint between their platform and its customers. This role involves engineering responsive web applications and architecting an API layer to deliver real-time data while ensuring compliance with government security requirements.
Responsibilities:
• Design and maintain responsive front-end applications using React, handling complex data visualization and high-concurrency use cases for external partners.
• Build and maintain scalable RESTful and GraphQL APIs using Node.js, Python (FastAPI/Flask), or Java (Spring Boot) for third-party data access.
• Implement authentication and authorization patterns including OAuth2, OIDC, mTLS, and RBAC to ensure secure external data access.
• Design and optimize relational (PostgreSQL) and non-relational (Elasticsearch, Redis) data store interactions.
• Containerize applications with Docker and deploy to Kubernetes on AWS in coordination with the DevSecOps team.
• Ensure all code meets DISA STIG requirements and addresses the OWASP Top 10 throughout the development lifecycle.
• Integrate with GitLab CI/CD pipelines and Helm charts for deployment across environments.
• Conduct code reviews, provide technical guidance for junior developers, and serve as the SME for third-party API integration.
• Maintain technical documentation, API specifications, and integration guides.
Qualifications:
Required:
• Current TS/SCI clearance with Polygraph.
• Bachelor’s degree in Computer Science or related field, or equivalent experience.
• 5+ years (mid-level) or 10+ years (senior-level) of full-stack software engineering experience.
• Advanced proficiency in JavaScript/TypeScript and React, including Redux and Context API.
• Strong experience building APIs with Node.js, Python (FastAPI/Flask), or Java (Spring Boot).
• Proficiency with Docker — writing Dockerfiles, building hardened images, and integrating with CI/CD pipelines.
• Familiarity with GitLab CI/CD, Helm, and Kubernetes deployment.
• Comfortable working in an agile, distributed team environment.
• Ability to travel up to 5%.
Preferred:
• Experience with data visualization libraries such as D3.js or Recharts.
• Familiarity with GraphQL federation and advanced API design patterns.
• Experience with AWS services including ECS/EKS, API Gateway, CloudFront, and RDS.
• Working knowledge of OAuth2, OIDC, mTLS, and modern API security patterns.
• Knowledge of the OWASP Top 10 and STIG-compliant development practices.
• Exposure to Elasticsearch query optimization and index management at scale.
• Familiarity with RHEL 9 hardening and STIG compliance at the OS and container level.
• Relevant certifications: AWS Developer Associate, CKAD, or CompTIA Security+.
Company:
At CACI International Inc (NYSE: CACI), our 27,000 talented and dynamic employees are ever vigilant in delivering distinctive expertise and technology to meet our customers’ greatest challenges in national security. Founded in 1962, the company is headquartered in Arlington, USA, with a team of 10001+ employees. The company is currently Late Stage.

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