Civil/Environmental Engineering Intern - Summer 2026 at Carollo Engineers in Edmond, OK | Kablio

Role

Description

data analysis

cost estimating

technical reports

site investigations

engineering design

submittal review

Data entry and analysis
Develop plans and specifications, and cost estimates for various projects
Assist with the preparation of technical memoranda, reports and electronic deliverables
Participate in field activities such as site investigations, and pilot testing
Work on engineering designs
Check submittals for performance or conformity with plans and specifications
Assist preparing reports
Perform engineering work in various engineering fields (water and wastewater treatment, and engineering services during construction)

Requirements

civil engineering

autocad

revit

excel

fe exam

communication

Currently pursuing a Bachelor’s or Master’s Degree in Civil or Environmental Engineering field
Proficient in Microsoft Word and Excel
High School Diploma or equivalent
Experience and/or coursework in water/wastewater treatment and conveyance
Passed or scheduled for the FE/EIT exam
Finishing or completed junior year of college
Previous related internship experience a plus, but not required
Experience using CAD software (AutoCAD, Microstation, Revit, Sketch Up)
Strong verbal and written communication skills

Benefits

Information not given or found

Training + Development

Information not given or found

Interview process

Information not given or found

Visa Sponsorship

Information not given or found

Security clearance

Information not given or found

Company

Overview

Founded with a singular focus on water and wastewater infrastructure, the company has grown into a recognized leader in the industry.
Excels in providing innovative engineering solutions for water resources, water treatment, and wastewater systems across the U.S.
Works on major projects including large-scale water treatment plants, wastewater infrastructure, and complex pipeline networks.
Specializes in consulting, design, construction management, and project delivery, ensuring water systems are efficient and sustainable.
Has a team of highly skilled engineers known for technical expertise and commitment to advancing water technologies.
Operates in both municipal and private sectors, transforming communities through robust and reliable water and wastewater systems.
Has a strong U.S. presence and is often called upon for international water infrastructure projects.
Offers a diverse project portfolio from small-scale residential systems to large urban water networks, demonstrating versatility.

Culture + Values

4.5★ Rating

Glassdoor Culture Score

The company receives a high culture rating on Glassdoor, with slight differences noted between male and female employees.

3.2/5 Score

Comparably Culture Score

The company's overall culture score according to Comparably, reflecting employee sentiment and workplace experience.

Employees highlight: “supportive and caring management,” “flat org chart,” “collaborative culture across different offices and regions”
Employee reviews emphasize technical excellence, autonomy, flexible schedules, and strong work–life balance

Environment + Sustainability

$1.8B Project

EchoWater Project

Upgrade for nutrient removal and drought-resistant recycled water.

15% Emissions Reduction

GHG Emissions Tool Success

Reduced emissions over 5 years and ~80% since pre-2019 at client site.

~80% Reduction

GHG Emissions Improvement

Significant decrease in emissions since pre-2019 at client site.

2023 Launch

Resilience & Sustainability Practice

Launched to advise on climate mitigation and sustainability assessments.

Planet goal: climate neutral, zero waste to landfill, honor local hydrology cycles, purchase environmentally preferable products
People goal: attract/retain talent, contribute to workforce and community sustainability
Prosperity goal: deliver sustainable services and maintain profitability
In‑house Sustainability Plan with regular updates, comprehensive metrics, and adaptive approach (align, engage, appraise, evolve)
Award‑winning: 2022 ENR Merit Award for sustainability on South Adams County Water project

Inclusion & Diversity

4.5★ men / 4.3★ women

Gender Ratings on Glassdoor

The company has received a 4.5-star rating for men and a 4.3-star rating for women on Glassdoor, reflecting gender-specific feedback ratings for the company.

No publicly shared DEI strategy or values statement
Comparably shows no formal values or mission alignment data on DEI
Employee feedback indicates some 'good ole boys' upper management culture in certain locations
No clear published gender representation metrics or diversity outcomes beyond rating scores

Articles

Working at Carollo

News and Insights

Locations

Company

Overview

Founded with a singular focus on water and wastewater infrastructure, the company has grown into a recognized leader in the industry.
Excels in providing innovative engineering solutions for water resources, water treatment, and wastewater systems across the U.S.
Works on major projects including large-scale water treatment plants, wastewater infrastructure, and complex pipeline networks.
Specializes in consulting, design, construction management, and project delivery, ensuring water systems are efficient and sustainable.
Has a team of highly skilled engineers known for technical expertise and commitment to advancing water technologies.
Operates in both municipal and private sectors, transforming communities through robust and reliable water and wastewater systems.
Has a strong U.S. presence and is often called upon for international water infrastructure projects.
Offers a diverse project portfolio from small-scale residential systems to large urban water networks, demonstrating versatility.

Culture + Values

4.5★ Rating

Glassdoor Culture Score

The company receives a high culture rating on Glassdoor, with slight differences noted between male and female employees.

3.2/5 Score

Comparably Culture Score

The company's overall culture score according to Comparably, reflecting employee sentiment and workplace experience.

Employees highlight: “supportive and caring management,” “flat org chart,” “collaborative culture across different offices and regions”
Employee reviews emphasize technical excellence, autonomy, flexible schedules, and strong work–life balance

Environment + Sustainability

$1.8B Project

EchoWater Project

Upgrade for nutrient removal and drought-resistant recycled water.

15% Emissions Reduction

GHG Emissions Tool Success

Reduced emissions over 5 years and ~80% since pre-2019 at client site.

~80% Reduction

GHG Emissions Improvement

Significant decrease in emissions since pre-2019 at client site.

2023 Launch

Resilience & Sustainability Practice

Launched to advise on climate mitigation and sustainability assessments.

Planet goal: climate neutral, zero waste to landfill, honor local hydrology cycles, purchase environmentally preferable products
People goal: attract/retain talent, contribute to workforce and community sustainability
Prosperity goal: deliver sustainable services and maintain profitability
In‑house Sustainability Plan with regular updates, comprehensive metrics, and adaptive approach (align, engage, appraise, evolve)
Award‑winning: 2022 ENR Merit Award for sustainability on South Adams County Water project

Inclusion & Diversity

4.5★ men / 4.3★ women

Gender Ratings on Glassdoor

The company has received a 4.5-star rating for men and a 4.3-star rating for women on Glassdoor, reflecting gender-specific feedback ratings for the company.

No publicly shared DEI strategy or values statement
Comparably shows no formal values or mission alignment data on DEI
Employee feedback indicates some 'good ole boys' upper management culture in certain locations
No clear published gender representation metrics or diversity outcomes beyond rating scores

Articles

Working at Carollo

News and Insights

Locations