ZipRecruiter

Log In

1

Trainee React Frontend Developer Jobs in Colorado

KORE1 Technologies

Principal Frontend Engineer

Denver, CO · On-site

$110K - $165K/yr

Experience with Vue 3+ is preferred, but we're also interested in strong React or Angular engineers ... Design scalable frontend solutions using clean architecture and coding practices. * Conduct ...

Worky

Senior Front-End Engineer

Longmont, CO · On-site

$145 - $165/hr

THE OPPORTUNITY We're looking for a Senior Front-End Engineer to take ownership of our front-end ... Deep proficiency with React, TypeScript, Node.js, and Tailwind, with the ability to design ...

Cymertek Corporation

React.js / Node.js Developer

Aurora, CO · On-site

$52 - $67.25/hr

The role involves leveraging expertise in React.js for building intuitive front-end interfaces and ... programming • Ability to write and consume APIs efficiently • Bachelor's Degree in Computer ...

Anagh Technologies, Inc.

Lead React Developer

Louisville, CO · On-site

$60.75 - $77.75/hr

Title Lead React Developer-MUI Location: Louisville, CO Duration: 12Months Only 10+ Years with PP ... front end software development experience (not freelance / hobby experience) • Solid ...

RSM

Solutions Architecture Associate Director

Denver, CO

$64.75 - $85.50/hr

Establish and enforce coding standards, design patterns, and engineering best practices across frontend (React) and backend (.NET / Python) teams. * Ensure non-functional requirements (security ...

RSM

Solutions Architecture Associate Director

Denver, CO · On-site

$64.75 - $85.50/hr

Establish and enforce coding standards, design patterns, and engineering best practices across frontend (React) and backend (.NET / Python) teams. * Ensure non-functional requirements (security ...

Bentley Systems

Sr. Optimizely Developer

Arvada, CO · On-site +1

$117K - $154K/yr

Experimentation & Personalization (Frontend Execution) * * Complex Test Engineering: Code and ... Advanced proficiency in HTML5, CSS3/SASS, and JavaScript (Vanilla, ES6+, jQuery, React/Vue) to ...

Horizontal Talent

Sr. Optimizely Developer

Denver, CO · Remote

$118K - $155K/yr

Partner on server-side testing and feature flagging when frontend testing is not the best fit ... jQuery, React, or Vue. * Deep understanding of Optimizely platform concepts such as Project JS ...

Loft Orbital

Frontend Engineer

Golden, CO · On-site

As a Frontend Engineer, you will work on enhancing the UI of satellite operations software and ... Required : • Strong proficiency in TypeScript / HTML / CSS • Experience with Vue or React • ...

Horizontal Talent

Senior CMS Developer Optimizely

Denver, CO · Remote

$118K - $155K/yr

Partner on server-side testing and feature flagging when frontend testing is not the best fit ... jQuery, React, or Vue. * Deep understanding of Optimizely platform concepts such as Project JS ...

previous pagenext page

Showing results 21-40

All JobsReact Frontend Developer JobsTrainee React Frontend Developer JobsTrainee React Frontend Developer Jobs in Colorado

Trainee React Frontend Developer information

What does a Trainee React Frontend Developer do?

A Trainee React Frontend Developer is an entry-level software developer who focuses on building and maintaining the user interface of web applications using the React JavaScript library. They work under the guidance of senior developers to learn best practices, write clean code, and gain experience with technologies such as HTML, CSS, JavaScript, and React. Their responsibilities typically include assisting in the development of new features, fixing bugs, and learning how to use development tools and workflows. The goal is to build foundational skills in frontend development while contributing to real-world projects.

What types of projects and tasks can a Trainee React Frontend Developer expect to work on during their first six months?

As a Trainee React Frontend Developer, you will typically start with smaller tasks such as fixing bugs, writing unit tests, and implementing simple UI components under the guidance of senior developers. You'll gradually progress to working on larger features, integrating APIs, and collaborating with designers to ensure user interfaces are both functional and visually appealing. Regular code reviews and pair programming sessions are common, providing valuable feedback and learning opportunities. This phase is crucial for building a strong foundation in React and understanding best practices in frontend development.

What are the key skills and qualifications needed to thrive as a Trainee React Frontend Developer, and why are they important?

To thrive as a Trainee React Frontend Developer, you need a solid understanding of JavaScript, HTML, CSS, and foundational knowledge of React.js, often supported by a relevant degree or coding bootcamp experience. Familiarity with version control systems like Git, basic knowledge of RESTful APIs, and exposure to development tools such as npm or Yarn are typically expected. Strong problem-solving abilities, attention to detail, and effective communication help you collaborate well within a team and adapt to feedback. These skills are crucial for building responsive user interfaces, maintaining code quality, and contributing effectively to dynamic development projects.

What is the difference between Trainee React Frontend Developer vs Junior React Developer?

AspectTrainee React Frontend DeveloperJunior React Developer
Required SkillsBasic knowledge of React, HTML, CSS, JavaScriptProficient in React, JavaScript, HTML, CSS, and some project experience
Work EnvironmentTraining programs, internships, entry-level projectsFull-time roles, collaborative teams, ongoing project development
CertificationsOptional, often part of training coursesPreferred but not mandatory; relevant certifications can be advantageous
ResponsibilitiesLearning, assisting in tasks, shadowing senior developersImplementing features, fixing bugs, contributing to codebase

The main difference between a Trainee React Frontend Developer and a Junior React Developer lies in experience and responsibilities. Trainees are typically in training or internship phases, focusing on learning and assisting, while Junior React Developers are expected to have a solid understanding of React and contribute actively to projects.

What are the most commonly searched types of React Frontend Developer jobs in Colorado?

The most popular types of React Frontend Developer jobs in Colorado are:

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

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

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

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

What cities in Colorado are hiring for Trainee React Frontend Developer jobs?

Cities in Colorado with the most Trainee React Frontend Developer job openings:

Trainee React Frontend Developer jobs near you

Principal Frontend Engineer

KORE1 Technologies

Denver, CO

Contractor

Medical, Dental, Vision, Retirement, PTO

Re-posted 19 days ago

Job description


KORE1, a nationwide provider of staffing and recruiting solutions, has an immediate opening for a Principal Frontend Engineer based in Denver, Co. The role is Hybrid with 3 days onsite each week. 

About the Role
We're looking for a Principal Frontend Engineer to help build and shape the user-facing side of our products. You'll bring deep expertise in modern frontend development, a strong understanding of clean architecture, and a collaborative mindset.
In addition to writing high-quality code, you'll mentor other developers, help guide technical direction, and work closely with designers and stakeholders to deliver intuitive, polished interfaces. This is a hands-on position for someone with at least five years of experience who takes ownership of code quality and enjoys raising standards across the team.
Experience with Vue 3+ is preferred, but we're also interested in strong React or Angular engineers who are excited to transition to Vue. Experience in payments, foreign exchange, or another regulated industry is a plus.

What You'll Do
  • Build and maintain reliable, maintainable frontend applications using Vue 3+ and TypeScript.
  • Design scalable frontend solutions using clean architecture and coding practices.
  • Conduct thorough code reviews and uphold high standards for quality across the team.
  • Mentor other developers on architecture, best practices, and clean coding habits.
  • Build responsive and accessible interfaces using Tailwind CSS, HTML5, and CSS3.
  • Write and maintain unit and integration tests using Vitest.
  • Work with modern build tools and bundlers such as Vite.
  • Collaborate with designers to turn UX/UI concepts into intuitive and visually polished experiences.
  • Partner with engineers and stakeholders in an Agile/Scrum environment while contributing to the team's technical direction.
  • Use AI development tools such as Claude Code or GitHub Copilot to improve productivity.
  • Communicate clearly with both technical and non-technical stakeholders.

Required Qualifications
  • Five or more years of experience building production software.
  • Proficiency with Vue 3+, or strong experience with React or Angular and an interest in transitioning to Vue.
  • Strong TypeScript knowledge.
  • A demonstrated commitment to clean, maintainable code.
  • Strong knowledge of frontend architecture and object-oriented programming and design.
  • Experience conducting effective code reviews.
  • Experience mentoring developers on best practices and code quality.
  • Experience with modern Tailwind CSS.
  • Experience writing unit tests using Vitest or Jest.
  • Understanding of JavaScript build tools and module bundlers such as Vite, Rollup, or Webpack.
  • Strong knowledge of HTML5, CSS3, responsive web design, and accessibility principles.
  • Understanding of UX/UI design principles and the ability to collaborate closely with designers.
  • Familiarity with Agile/Scrum methodologies and cross-functional collaboration.
  • Experience with—or an open mindset toward—AI coding tools such as Claude Code and GitHub Copilot.
  • Strong written and verbal communication skills, including the ability to align engineers and stakeholders around a technical direction.

Preferred Qualifications
  • Experience with PostCSS, Sass, SCSS, or similar CSS technologies.
  • Knowledge of end-to-end testing frameworks such as Playwright.
  • Experience with Storybook for component-driven development and UI documentation.
  • Experience in payments, foreign exchange, or another regulated industry.

Perks and Benefits
  • Medical, dental, and vision insurance
  • 401(k) plan with company match
  • Employee stock purchase plan
  • Paid vacation and sick leave
  • Hybrid work schedule
  • Tuition assistance
  • Professional growth opportunities
  • Company gatherings and team-building events
  • Mental health and well-being support through Plumm
  • One paid volunteer day for a charity of your choice



Compensation depends on experience but is typically 110-165k DOE

ABOUT KORE1
Specializing in professional and technical recruiting, KORE1 is committed to supporting top IT, Engineering, Creative, Scientific, Accounting and Finance professionals in their career paths. We build deep relationships with leading companies, connecting them to exceptional talent every day. With extensive industry expertise and unmatched opportunities, our goal is to provide a unique experience for our contractors and consultants as they prepare for their next role. We are passionate about matching the right people with the right companies.

Kore1 provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. In addition to federal law requirements, Kore1 complies with applicable state and local laws governing nondiscrimination in employment in every location in which the company has facilities. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training. Kore1 expressly prohibits any form of workplace harassment based on race, color, religion, gender, sexual orientation, gender identity or expression, national origin, age, genetic information, disability, or veteran status. Improper interference with the ability of Kore1's employees to perform their job duties may result in discipline up to and including discharge.
Education:Employment Type: CONTRACTOR

Apply