Staff Surveyor/Party Chief - 2+ Years Experience Jobs in Parsippany, NJ. 4.4 Langan Engineering and Environmental Services - Parsippany, NJ 2 days ago. Langan Engineering and Environmental Services is actively hiring on Glassdoor. Job. Work for an Industry Leader Challenging Projects & Dynamic Work Environment Extensive Training Program Community Service Opportunities. Langan is an award-winning ENR Top 500 Design Firm that offers integrated engineering and environmental services for both public
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