This Senior Administrative Assistant role in Somerset, NJ supports Principals, Project Managers, and staff engineers/scientists in a fast-paced environment. Key duties include managing project files, preparing correspondence, proposals, reports, and assisting with financial and contract administration. The position involves coordinating meetings, travel, and regulatory paperwork, with opportunities to support various projects beyond primary responsibilities. Candidates need an Associate's Degree with 2+ years of office support experience or a High School Diploma with 4+ years of similar experience, strong communication skills, attention to detail, confidentiality, and proficiency in MS Office. Knowledge of Deltek software and engineering environments is a plus. The role offers career growth, a competitive hourly rate, and benefits, with a focus on teamwork and professionalism.