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Web Developer Intern Jobs in Boulder, CO (NOW HIRING)

Mortenson

Sustainability Intern

Denver, CO

$18/hr

As a top builder, developer, and EPC (Engineering, Procurement, and Construction), our expertise ... As an intern, you'll get hands-on experience right away, working alongside project teams and ...

Five and Fly, LLC.

Analytics Engineering Intern

Denver, CO · On-site

$17.25 - $22.50/hr

We are looking for an Analytics Engineering Intern who is eager to learn and passionate about transforming information into actionable insights. This role is ideal for students with curiosity for ...

Five and Fly

Analytics Engineering Intern

Denver, CO · On-site

$17.25 - $22.50/hr

Description We are looking for an Analytics Engineering Intern who is eager to learn and passionate about transforming information into actionable insights. This role is ideal for students with ...

Medtronic

Engineering Intern - Summer 2027

Lafayette, CO

$17.50 - $22.75/hr

Engineering Intern Opportunities for Students Interns may support one or more engineering areas based on business need, candidate background, and location availability. Examples of work in each area ...

Medtronic

Engineering Intern - Summer 2027

Boulder, CO

$17.25 - $22.50/hr

Engineering Intern Opportunities for Students Interns may support one or more engineering areas based on business need, candidate background, and location availability. Examples of work in each area ...

Medtronic

Engineering Intern - Summer 2027

Lafayette, CO · On-site

$17.50 - $22.75/hr

Engineering Intern Opportunities for Students Interns may support one or more engineering areas based on business need, candidate background, and location availability. Examples of work in each area ...

Medtronic

Engineering Intern - Summer 2027

Boulder, CO · On-site

$17.25 - $22.50/hr

Engineering Intern Opportunities for Students Interns may support one or more engineering areas based on business need, candidate background, and location availability. Examples of work in each area ...

Oxy

Engineering Intern (Oil & Gas Business)

Platteville, CO

$18.75 - $24.25/hr

Click here for more information about the intern program. Final position can be but not limited to Production Engineer, Facilities Engineer, Reservoir Engineer, Drilling and Completions Engineer and ...

Collabera

Web Applications Developer

Denver, CO · On-site

Develop Windows based applications for our Litigation solution offering leveraging Web Site, Web Service, Windows Service and other related technologies. Create enterprise-level software that ...

Ryan Companies

Field Engineer Intern

Denver, CO · On-site

$20 - $25/hr

The Field Engineer Intern will assist superintendents with daily duties including: * Assisting with project document flow, scheduling, quality control, safety and other duties specific to the project.

Swinerton Incorporated

Project Engineer Intern

Arvada, CO · On-site

$17 - $22.25/hr

Please be advised that housing or relocation assistance is not provided for intern positions within ... Engineering, Construction Management, or Architectural degree completed or in progress, or ...

Ryan Companies

Field Engineer Intern

Denver, CO · On-site

$20 - $25/hr

The Field Engineer Intern will assist superintendents with daily duties including: * Assisting with project document flow, scheduling, quality control, safety and other duties specific to the project.

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Web Developer Intern information

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How much do web developer intern jobs pay per hour?

As of Aug 23, 2026, the average hourly pay for web developer intern in Boulder, CO is $12.99, according to ZipRecruiter salary data. Most workers in this role earn between $8.70 and $14.95 per hour, depending on experience, location, and employer.

What is a web developer intern?

A Web Developer Intern is an entry-level position where individuals, often students or recent graduates, gain practical experience in designing, coding, and maintaining websites or web applications. Interns typically work under the supervision of experienced developers and contribute to real-world projects while learning industry-standard technologies such as HTML, CSS, JavaScript, and various frameworks. This role helps interns develop their technical skills, understand workplace dynamics, and build a portfolio of work for future employment opportunities.

What types of projects and responsibilities can I expect as a web developer intern?

As a Web Developer Intern, you can expect to work on a variety of tasks such as coding website features, fixing bugs, assisting with front-end and back-end development, and participating in team meetings. You'll likely collaborate closely with senior developers and designers, gaining hands-on experience with technologies like HTML, CSS, JavaScript, and possibly frameworks like React or Angular. Interns are often encouraged to ask questions, contribute ideas, and gradually take on more complex assignments as they build confidence. This role offers a great opportunity to learn best practices, develop coding skills, and understand how web development projects are managed in a professional environment.

What are the key skills and qualifications needed to thrive as a web developer intern, and why are they important?

To thrive as a Web Developer Intern, you need a solid understanding of HTML, CSS, JavaScript, and foundational web development concepts, usually supported by coursework or personal projects. Familiarity with version control systems like Git, basic knowledge of frameworks such as React or Angular, and experience using code editors are typically expected. Strong problem-solving skills, attention to detail, and effective communication help interns collaborate well within development teams. These abilities enable interns to quickly learn, adapt, and contribute meaningful code to real-world projects.

Can I be a web developer intern with no experience?

Web developer internships often do not require prior professional experience and are designed for students or beginners learning programming languages like HTML, CSS, and JavaScript. Demonstrating a portfolio of personal projects or coursework can help qualify for such internships, which typically focus on skill development and learning on the job.

What are the most commonly searched types of Web Developer jobs in Boulder, CO?

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Web Developer Intern jobs near you
Infographic showing various Web Developer Intern job openings in Boulder, CO as of August 2026, with employment types broken down into 1% Internship, 80% Full Time, 11% Part Time, 1% Temporary, and 7% Contract. Highlights an 84% Physical, 4% Hybrid, and 12% Remote job distribution, with an average salary of $27,022 per year, or $13 per hour.

Sustainability Intern

M. A. Mortenson Company

Denver, CO • On-site

$18/hr

Full-time

Posted 13 days ago

Mortenson rating

8.4

Company rating: 8.4 out of 10

Based on 19 frontline employees who took The Breakroom Quiz

Job description


Sustainability Intern
Join a team that's passionate about building inspiring spaces and pushing the industry forward in smarter, more innovative ways. As a top builder, developer, and EPC (Engineering, Procurement, and Construction), our expertise spans markets like sports, renewable energy, data centers, healthcare, and more. At Mortenson, we're grounded in offering meaningful work, real career growth, and a collaborative culture where your ideas and contributions matter.
We're looking for motivated, adaptable individuals who thrive in fast-paced environments and enjoy working with a diverse range of people. If you're proactive, curious, and ready to make an impact while growing your career, check out our opportunities!
As an intern, you'll get hands-on experience right away, working alongside project teams and partners to keep things moving. You'll help solve real problems, stay organized, communicate across teams, and make an impact from day one while building the foundation for your career.
Responsibilities
As a Sustainability Engineer Intern at Mortenson, you will interact with a variety of people to implement Mortenson's Build for the Greater Good program. You will work at our Denver, CO office and support the sustainability team.
Highlights of your time with this Mortenson internship will include:
  • In-depth research addressing all facets of sustainable building practices

  • Assisting in unorthodox data collection - be it calling local agencies or diving several levels deep in online search

  • Exploration and discovery of new publicly available informational sources and unidentified analytics-focused tools/capabilities that contribute to sustainable building initiatives

  • Collecting, updating, and fact-checking existing structures and project profiles

Program Overview:
Our summer intern program (May - August 2027) is designed to give you real, hands-on experience from day one, working on meaningful projects that directly impact the business. You'll gain exposure to innovative work, build professional skills through development opportunities, and be supported by a team that values your growth. Your ideas matter here, and you'll have the chance to contribute, learn, and make a difference while exploring your career path.
Required Qualifications:
Cultivate your skills in your chosen field of study and build your career with Mortenson. We look forward to hearing from you if you:
  • Currently pursuing an undergraduate, four-year degree in Environmental Science, Environmental Engineering, Ecology, Biology, Data Analytics, Sustainable Architecture, Environmental Architecture, Environmental Design, Engineering, or other related degree

Preferred Qualifications:
  • Have previous related internship experience

  • Are currently enrolled as an undergraduate junior

  • Have a basic understanding of construction and generally accepted business practices

  • Demonstrate strong collaboration, communication, and problem-solving skills and show initiative and leadership

  • Showcase a positive and professional attitude and solid customer service skills

  • Are detail-oriented, organized, and can effectively handle multiple competing priorities

The hourly wage for college Interns starts at $18. Students may be paid higher wages based on their year in school.
Please make note:
  • Visa sponsorship is not offered for this position.

  • Our postings are typically open a minimum of 5 days and an average of 44 days.

Equal Employment Opportunity
Your uniqueness brings new and creative perspectives to the team. Mortenson is committed to providing equal opportunities of employment (EOE) to all individuals, regardless of your race, religion, gender, national origin, age, veteran status, disability, marital status or any other legally protected category.
Other Items to Note
  • Mortenson reserves the right to hire any individual without legal or financial obligation on unwanted solicitations. No agency emails, calls, or solicitations are accepted without a valid agreement.

  • Must be currently legally authorized to work in the U.S. without sponsorship for employment visa status (e.g., H1B status, 0-1, TN, CPT, OPT, etc.). We are unable to sponsor or take over sponsorship of an employment Visa at this time.

What Mortenson employees say

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M. A. Mortenson logo

About M. A. Mortenson

Sourced by ZipRecruiter

M. A. Mortenson is a prominent name in the construction industry, based out of Minneapolis, MN, US. Established in 1954 by M.A. Mortenson Sr., the company has over six decades of experience offering construction services that have contributed to building lasting infrastructures across various sectors, including healthcare, energy, corporate, and sports. Mortenson has proven its exceptional expertise through a range of complex building and facility projects across the US fulfilling the customer's specifications and exceeding their expectations. Moreover, the company's core values are outlined as ‘Do the Right Thing’, ‘We Before I’, ‘Inspire What’s Possible’, and ‘In it for the long haul’.

Industry

Manufacturing and construction

Company size

1,001 - 5,000 Employees

Headquarters location

Minneapolis, MN, US

Social media

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