Hiring.Camp

Sr Principal Scientist

Apex Companies

·

Aug 5, 2026

Apply
Location
Austin, TX · Austin, Texas, United States
Type
Full-time
Department
725 South Central - Titan
Seniority
Lead
Experience
15+ years
Education
Master
Source
Greenhouse

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 Scientist 7 - Sr Principal Scientist:

  • Serve as senior technical lead on cumulative project total >$2.5M annually.
  • Contribute to successful business development of >$1M annually.
  • Write and review technical reports and proposals.
  • Prepare and deliver marketing presentations.
  • Assist with project management activities.
  • Mentor and train scientific staff and ensure quality work product.

What we're looking for:

  • BS in related scientific field, Master's preferred.
  • Professional accreditation. 
  • 15+ years of experience with environmental services including technical writing and providing technical oversight.
  • Business development.
  • Project Management.
  • Ability to mentor and train staff.
  • Strong technical writing skills, the ability to successfully multi-task, safety awareness, and a good record and understanding of safe work practices.
  • Microsoft 365 / CRM
  • Valid driver's license, good driving history and reliable transportation are required.

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 7 - Sr Principal Scientist

Req ID: 11921

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.

Skills

Project ManagementTechnical Writing

Similar Jobs

30

Senior Principal Scientist

Mission Support & Test Services, LLC (MSTS)·Los Alamos, New Mexico·Onsite

1w ago

Senior Principal Scientist

The Waters·Milford, Massachusetts·Hybrid

4mo ago

Sr Principal Scientist, R&D - Protein Chemist

Heinz is·Glenview, Illinois·Hybrid

Today

Sr Principal Scientist/Advisor - TSMS Packaging

Lilly·US

Today

Senior/ Principal Data Scientist, Security AI & ML

Radicl Defense·Boulder, Colorado·Remote

1d ago

Senior Principal, Signal Processing Research Scientist

RTX·Texas, US·Remote

2d ago

Senior Scientist/Principal Scientist- Clinical Veteriarian

Zoetis·Kalamazoo, Michigan

2d ago

Principal Scientist/Senior Scientist, Cryo-EM Structural Biology

Novartis·Basel, Basel-City·Onsite

2d ago

Sr. Principal Scientist Oncology Translational Research, Prostate

Jj·Cambridge, Massachusetts +1·Hybrid

2d ago

Senior Scientist/Principal Scientist- Clinical Veteriarian

Zoetis·Kalamazoo, Michigan

2d ago

Principal Scientist/Senior Scientist, Cryo-EM Structural Biology

Novartis·Basel, Basel-City·Onsite

2d ago

Sr. Principal Scientist Oncology Translational Research, Prostate

Jj·Cambridge, Massachusetts +1·Hybrid

2d ago

Sr. Principal Scientist Oncology Translational Research, Prostate

Jj·Cambridge, Massachusetts +1·Hybrid

2d ago

Senior Principal Scientist Pharmacology

Jj·Belgium·Hybrid

3d ago

Senior Principal Scientist Pharmacology

Jj·US026 PA Spring House - 1400 McKean Rd, US·Hybrid

3d ago

Senior Principal Scientist - Remote

Csl·US·Remote

3d ago

Senior / Principal Scientist, Ingredient Development

Kingdom·Brooklyn, New York·Onsite

3d ago

Senior or Principal Scientist/Senior Manager – Power Generation and Electric Transmission

Braun Intertec as we build a fu·Allen, Texas +24·Hybrid

3d ago

Senior Principal Scientist Integrated Technology, Computation & Experimental Biology

Amgen is committed to unlocking·California, US·Onsite

3d ago

Senior Principal Scientist Pharmacology

Jj·US026 PA Spring House - 1400 McKean Rd, US·Hybrid

3d ago

Principal / Sr. Principal Scientist - Molecular Biology & Protein Expression

Lilly·US·Onsite

5d ago

Senior Principal Scientist, Molecular Assays & Genomics Team Lead (Cell Therapy Translational Research)

Bristol Myers Squibb·Seattle, Washington·Hybrid

6d ago

Sr. Principal Scientist (Sr. Director) , Drug Safety

Msd·New York City, New York +1·Hybrid

6d ago

Senior Principal Scientist, Molecular Assays & Genomics Team Lead (Cell Therapy Translational Research)

Bristol Myers Squibb·Seattle 400 Dexter - WA, US·Hybrid

6d ago

Senior / Principal Scientist, Medicinal Chemistry

Altos Lab·California, US +1

1w ago

Senior/Principal Data Scientist (m/f/d)

Stenon GmbH·Potsdam, Brandenburg·Hybrid

1w ago

Senior Principal Scientist, Biostatistics

Msd·New York City, New York +1·Hybrid

1w ago

Senior/Staff/Principal Data Scientist (HHS)

Skylighthq·New York City, New York·Remote

1w ago

Senior/Principal Applied Scientist

Oracle·Sydney, New South Wales

1w ago

Senior Principal Scientist, Data Science - R&D DDSAI - Therapeutics Development & Supply (TDS)

Jj·Malvern, Pennsylvania·Hybrid

1w ago