Richland, WA 99352 • (27.9 miles) • Full Time • 9/21/2026

At Core States Group, the work you do matters to the clients we serve, the communities we support, and the teams who rely on one another to deliver with excellence. Our Cause is powerful: to create a world where all environments improve everyday life.Why Professionals Choose Core States GroupHere’s what you can expect:VALUES-DRIVEN CULTURE– A workplace rooted in Integrity, Service, Inclusion, Excellence, and Innovation. Our Core Values guide how we work, how we treat each other, and how we show up for our clients every day.COMPENSATION – Competitive wages and bonus programs, including professional licensure bonuses.RETIREMENT – A strong 401(k) match, with immediate vesting, to help you invest in your future and build your retirement savings with confidence.HEALTHCARE – Competitive health b

Richland, WA 99354 • (33.4 miles) • Full Time • 9/9/2026

Job Title: HVAC Engineer Location: Richland , Washington Type: Direct Hire Compensation: $126,000 - $171,000 annually Contractor Work Model: Onsite System One is hiring HVAC Engineers for direct, full-time roles supporting engineering projects across the full project lifecycle. While nuclear experience is preferred, candidates from other highly regulated or complex industrial environments are encouraged to apply. You’ll work with cross-functional engineering teams, supply chain partners, and stakeholders to deliver reliable, compliant HVAC solutions for mission-critical facilities. Key ResponsibilitiesLead and support HVAC system design, analysis, modifications, and implementation across project phasesSupport requirements-driven engineering and maintain strong technical documentation and t

Richland, WA 99352 • (27.9 miles) • Full Time • 9/15/2026

At Core States Group, the work you do matters to the clients we serve, the communities we support, and the teams who rely on one another to deliver with excellence. Our Cause is powerful: to create a world where all environments improve everyday life.Why Professionals Choose Core States GroupHere’s what you can expect as an intern:VALUES-DRIVEN CULTURE – A workplace rooted in Integrity, Service, Inclusion, Excellence, and Innovation. Our Core Values guide how we work, how we treat each other, and how we show up for our clients every day.PERKS– Intern Welcome Package with branded swag, team-building activities, networking opportunities, group sessions with industry leaders, wellness initiatives and volunteer activities and much more!RETIREMENT– A strong 401(k) match, with immediate vesting,

Richland, WA 99352 • (27.9 miles) • Full Time • 9/15/2026

At Core States Group, the work you do matters to the clients we serve, the communities we support, and the teams who rely on one another to deliver with excellence. Our Cause is powerful: to create a world where all environments improve everyday life.This role is paid on an hourly basis with a range of $33.00 - $44.00 and is eligible for overtime in accordance with applicable laws. The expected approximate annualized compensation range is $70,000 - $90,000.Why Professionals Choose Core States GroupHere's what you can expect:COMPENSATION – Competitive wages and bonus programsRETIREMENT– We offer a great 401(k) match to help you invest in your future and grow your retirement savings with confidence.HEALTHCARE– Excellent health benefits, life insurance options, and supplemental benefit option