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Global Solutions Network (GSN), a federal government contracting firm, presents this full time, long-term position supporting GSN's customer at the National Institute of Allergy and Infectious Diseases (NIAID), which is …
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Sr. Principal Scientist (Sr. Director) - Regulatory Liaison
Rockville, Maryland, United States · Hybrid
$191k–$300k/yr
Senior+
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The American Speech-Language-Hearing Association (ASHA)
Senior Director, Multicultural Practices
Rockville, Maryland, United States · On-site
Senior
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Quality Assurance Specialist 3 - Compliance and Audits
Rockville, Maryland, United States · On-site
$71k–$106k/yr
Mid level
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$65k–$75k/yr
Full-time
bachelor degree
Medical insurance, Dental insurance, Life insurance, Short-term disability, Long-term disability, 401k match
Posted 9d ago
~40 hrs/week
Responsibilities
Provide senior-level technical oversight for environmental field activities, including UST/AST investigations and environmental sampling. Manage project documentation, coordinate with subcontractors, and mentor junior scientific staff to ensure compliance and safety.
Requirements
Requires a Bachelor's degree in Environmental Science, Geology, or Engineering and at least 4 years of relevant industry experience. Candidates must hold a 40-hour HAZWOPER certification and possess a valid driver's license for local travel.
Full job description
Are you driven to grow, lead, and make a meaningful impact? At Apex, we’re building more than a consulting and engineering firm—we’re creating a place where your career accelerates, your contributions matter, and your potential is fully realized. We believe your growth is our growth, which is why we invest in your development at every stage of your career. Here, you’ll work on projects that shape communities, protect the environment, and create lasting impact, all while being empowered with the autonomy and flexibility to do your best work.
Fueled by high-quality delivery, exceptional client retention, and strategic acquisitions, Apex Companies continues to rank among the fastest-growing firms in the AEC industry, recently recognized by the Zweig Group for our industry-leading growth. Our success is grounded in strong leadership, a collaborative culture, and a shared commitment to delivering exceptional outcomes.
As we continue to expand, we're looking for high-performing professionals who are ready to lead, collaborate, innovate, and create impact. At Apex, you help shape what's next. When we succeed together, we share in that success. All Apex positions are eligible for annual bonus opportunities, reinforcing our commitment to recognizing and rewarding meaningful contributions that drive our collective growth.
Your Responsibilities as a Sr. Project Scientist:
Provide senior-level technical oversight and perform environmental field activities associated with UST/AST investigations, removals, and installations.
Oversee subcontractors in the field and serve as a liaison between Apex, general contractors, and clients to ensure work is completed safely, efficiently, and in compliance with project requirements.
Conduct and support environmental sampling activities including soil, groundwater, and air monitoring, along with associated technical documentation and reporting.
Prepare, review, and manage technical reports, proposals, and field documentation.
Assist with project management activities including scheduling, coordination, budgeting support, and client communication.
Support emergency response projects as needed, including occasional after-hours or weekend response work.
Mentor and train junior scientific staff while promoting safe work practices and technical development.
Collaborate with commercial, industrial, and government clients on a variety of environmental projects throughout the Mid-Atlantic region.
What we're looking for:
BS degree in Environmental Science, Geology, Engineering, or related scientific field.
4+ years of environmental consulting or related industry experience with strong technical writing and field oversight responsibilities.
Experience with UST/AST systems, environmental sampling, remediation oversight, and subcontractor coordination preferred.
Familiarity with Maryland/DC environmental regulations and tank programs is highly preferred.
Strong communication and organizational skills with the ability to manage multiple priorities in both field and office environments.
Ability to mentor and train junior staff.
Strong commitment to health and safety with a solid understanding of safe field practices.
Valid driver’s license, reliable transportation, and willingness to travel locally to project sites.
Why you'll love working for us:
Company-subsidized medical and dental.
Company-paid life, short, and long-term disability.
401k match, tuition assistance, and more.
Cross-training and the ability to work on a variety of projects.
Performance-based bonuses or other incentives.
Working with the best and brightest in the industry.
2,000+ employee national firm with 70+ locations across the US.
#LI-MW1
Apex Job Title: Scientist 3 - Sr Project Scientist
Req ID: 11946
Annual Expected Pay Range
$65,000—$75,000 USD
We believe in equality for all and celebrate the diversity and differences of our employees, customers, and communities. We do not discriminate based on gender, race or color, ethnicity or national origin, age, disability, religion, sexual orientation, gender identity or expression, veteran status, or any other applicable characteristics protected by law. Apex aims to make apexcos.com accessible to all users. If you have a disability or special need that requires accommodation to navigate our website or complete the application process, please contact [email protected] or (301) 417-0200. Likewise, feel free to reach out to us if you would like to view or discuss Apex policy related to equal employment opportunity or have any related concerns. EO/AA/VEV/Disabled Employer
TO ALL RECRUITMENT AGENCIES: Apex Companies does not accept unsolicited agency resumes. Please do not forward resumes for any of our job postings to our career’s sites, or to any employees of Apex Companies or affiliates. Apex Companies is not responsible for any fees related to unsolicited resumes.
Who is Apex?
We’re a team of award-winning Engineering and Environmental Solutions professionals who tackle civil and environmental challenges to save our clients time and money.
If you’re seeking responsive service and real-time results, contact us! We’d be happy to help. If you provide that caliber of technical excellence, contact us as well! We’re always seeking top talent.
Our competitors tout results. We deliver them. We saved one client over $30M while helping them achieve local community support and national recognition. But don’t take our word for it. Ask our clients. Partner with Apex. Discover what sets us apart. You’ll be glad you did.
About Apex
Established in 1988, Apex is a national multidisciplinary consulting and engineering services firm with a robust portfolio of capabilities in water; environment; environmental, social, and governance (ESG) and resiliency; health and safety; compliance and assurance; and infrastructure. Rated #13 as an ENR All-Environmental firm and #68 in the top 200 overall, we are known for our technical expertise, rapid response, operational integrity, and exceptional client satisfaction. We operate in all 50 states and maintain a highly capable and diverse team of scientists, geologists, engineers, technicians, and information management specialists.
At Apex, we pride ourselves on our culture of diversity and inclusion. We respect and appreciate the rich differences that race, gender identity and expression, family, sexual orientation, age, national origin, work experience, education, physical ability, and religion bring to the fabric of our organization. For Apex, it’s not just a box to check. We believe it’s the collaborative foundation that drives our success.
Offices: 2101 Gaither Rd, Suite 500, Rockville, Maryland 20850, US
How many Science & Research jobs are open in Rockville, MD right now?
There are currently 266 open science & research positions in Rockville, MD listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Science & Research roles in Rockville, MD?
Companies currently hiring include Quantum Space, Veridix, part of Emmes Group, X-energy, Samsung Biologics, Axle, among others. Browse the listings above to see every active employer.
Are there remote or hybrid Science & Research jobs in Rockville, MD?
Yes — 88 of the 266 open science & research positions offer remote or hybrid work (37 remote, 51 hybrid).
How do I apply for Science & Research jobs in Rockville, MD?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.