RSI EnTech

Senior Hydrogeologist - Westminster, CO

Senior Hydrogeologist

Senior hydrogeologist with leadership in groundwater projects, modeling, and field data analysis.

Project Hydrogeologist - Grand Junction, CO

Project Hydrogeologist

Masters or PhD in hydrogeology, engineering, geology, or related physical sciences; minimum 5 years of relevant experience.

Project Hydrogeologist - Westminster, CO

Masters or PhD in hydrogeology or related field; minimum 5 years experience; driver’s license; PG/PE preferred; strong modeling and data analysis.

Project Engineer III - Los Alamos, NM

Project Engineer III

B.S. in engineering with 6 years of progressive experience; DOE DoD experience preferred; ability to qualify for a Q clearance; may require working outside normal hours.

Project Engineer II - Los Alamos, NM

Project Engineer

B.S. in engineering with 3 years of applicable progressive experience; DOE/NQA1 knowledge; possible Q clearance; willing to work at Los Alamos National Lab.

Construction Engineer I - Los Alamos, NM

Construction Engineer I

Entry-level construction engineering role; requires B.S. in engineering and 1-2 years of progressive experience;DOE/DoD experience preferred.

Construction Engineer III - Los Alamos, NM

Construction Engineer III

BS degree in engineering with 6+ years progressive experience; DoD/DOE experience preferred; Q clearance preferred; ability to work outside normal hours.

Construction Engineer II - Los Alamos, NM

Construction Engineer

Assist senior engineers; perform routine construction engineering tasks; support installation and construction phase; possible project leadership.

Software Engineer I/II - Albuquerque, NM

Software Engineer

3+ years real-time embedded software or programmable logic; embedded/C/C++/ADA or VHDL/Verilog; software reviews; software engineering principles; Secret clearance with ability to obtain Top Secret; independent and team work; BS in CS/CE/EE.

Senior Project Controls Specialist - Nashville, TN

Senior Project Controls Specialist

3+ years in project controls, cost management, scheduling; Primavera P6; earned value; PMP/AACE preferred.

Waste Specialist - San Francisco, CA

Waste Specialist

Support waste management activities; onsite availability for projects nationwide; document control; coordinate with waste broker for transport and disposal; ensure compliance with EH&S plans.

Nuclear Safety Engineer - Savannah River Site, SC

Nuclear Safety Engineer

Extensive experience in nuclear safety documentation and safety analyses; DOE 10 CFR 830 Subpart B experience preferred; US citizenship and security screening required.

Project Controls Specialist - Chattanooga, TN

Project Controls Specialist

Bachelor’s/Associate’s in technical or financial field; several years of project control experience; PMP or AACE certification desired.

Senior/ Lead Project Scheduler - Chattanooga, TN

Senior Project Scheduler

Senior-level scheduler with Primavera P6 expertise, advanced Excel/Office skills, and strong communication; BS degree or equivalent experience; 8+ years experience; ability to obtain site access and pass background checks.

Title	Location	Date
Senior Hydrogeologist - Westminster, CO Full Time · $125K-$140K · 10+ YOE Westminster, Colorado, United States · Onsite	Westminster, Colorado, United States Onsite	Oct 30, 2025
Project Hydrogeologist - Grand Junction, CO Full Time · $90K-$105K · 5+ YOE Grand Junction, Colorado, United States · Onsite	Grand Junction, Colorado, United States Onsite	Oct 24, 2025
Project Hydrogeologist - Westminster, CO Full Time · $90K-$105K · 5+ YOE Westminster, Colorado, United States · Onsite	Westminster, Colorado, United States Onsite	Oct 24, 2025
Project Engineer III - Los Alamos, NM Full Time · 6+ YOE Los Alamos, New Mexico, United States · Onsite	Los Alamos, New Mexico, United States Onsite	Oct 24, 2025
Project Engineer II - Los Alamos, NM Full Time · 3+ YOE Los Alamos, New Mexico, United States · Onsite	Los Alamos, New Mexico, United States Onsite	Oct 24, 2025
Construction Engineer I - Los Alamos, NM Full Time · 1+ YOE Los Alamos, New Mexico, United States · Onsite	Los Alamos, New Mexico, United States Onsite	Oct 24, 2025
Construction Engineer III - Los Alamos, NM Full Time · 6+ YOE Los Alamos, New Mexico, United States · Onsite	Los Alamos, New Mexico, United States Onsite	Oct 24, 2025
Construction Engineer II - Los Alamos, NM Full Time · 3+ YOE Los Alamos, New Mexico, United States · Onsite	Los Alamos, New Mexico, United States Onsite	Oct 24, 2025
Software Engineer I/II - Albuquerque, NM Full Time · 3+ YOE Albuquerque, New Mexico, United States · Onsite	Albuquerque, New Mexico, United States Onsite	Oct 3, 2025
Senior Project Controls Specialist - Nashville, TN Full Time · 3+ YOE Nashville, Tennessee, United States · Remote	Nashville, Tennessee, United States Remote	Sep 24, 2025
Waste Specialist - San Francisco, CA Full Time San Francisco, California, United States · Onsite	San Francisco, California, United States Onsite	Sep 17, 2025
Nuclear Safety Engineer - Savannah River Site, SC Full Time · 10+ YOE Aiken, South Carolina, United States · Onsite	Aiken, South Carolina, United States Onsite	Jul 29, 2025
Project Controls Specialist - Chattanooga, TN Full Time Chattanooga, Tennessee, United States · Onsite	Chattanooga, Tennessee, United States Onsite	Mar 18, 2025
Senior/ Lead Project Scheduler - Chattanooga, TN Full Time · 8+ YOE Chattanooga, Tennessee, United States · Onsite	Chattanooga, Tennessee, United States Onsite	Feb 13, 2025

Activities	Environmental remediation servicesNuclear facility managementConstruction management servicesHazardous waste managementRegulatory compliance consulting
Headquarters	US
Industries	Environmental ServicesEngineering Services
Name	RSI EnTech
Employees	400
Type	Private
Parent Company	ASRC Industrial
Subsidiaries	RSI ServicesSigma Science
Tagline	Provides environmental restoration and nuclear facility management services.
Founded	1,996
Website	rsienv.com
Latest Funding Round	Corporate Round
Latest Funding Year	2,016
Latest Investors	ASRC Industrial

RSI EnTech

About RSI EnTech