GIS Analyst / Modeler

Tetra Tech is seeking a GIS Analyst / Modeler to join our Ocean Science team, with flexibility to be based in our South Kingstown, RI office, or work remotely within the Eastern or Central Region of the United States.

Why Tetra Tech

At Tetra Tech, we are Leading with Science to solve the world’s most complex challenges. Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world. For 60 years, we have been at the forefront of innovation and sustainability. Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development. Our science-based planning and design improves lives in our local communities and around the world.

Your Impact

Join Tetra Tech to make a real difference. Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential – join us to advance your career while leaving  a lasting legacy .

Position Summary

We’re seeking a positive, motivated GIS Analyst / Modeler with excellent problem-solving abilities and strong communication skills that will demonstrate an ability to work on highly dynamic and interactive projects both independently and as part of a team. This individual should have a strong technical background in GIS, data management, and a general understanding of, and interest in, environmental modeling. The successful candidate will be detail-oriented, working with a growing project team and offering GIS support for a variety of projects in inland, coastal, and offshore environments, ocean science, modeling, and data management.

Essential Job Functions

The following duties are considered essential to the role. Reasonable accommodation may be made to enable individuals with disabilities to perform these essential functions:

• Create, digitize, convert, edit, compile, and standardize GIS data from non-spatial sources.
• Organize and structure spatial data files across servers and database environments, including maintaining data versioning as needed.
• Perform QA/QC and data cleaning for geospatial, tabular, and model input/output data to ensure accuracy and consistency.
• Research, gather, prepare, and integrate geospatial environmental data for use in modeling software.
• Prepare and integrate gridded/raster and vector datasets from multiple sources for use as model inputs.
• Use, enhance, and develop tools and workflows to analyze, interpret, and present model results.
• Conduct modeling studies using proprietary model software.
• Contribute to technical reports as an author or co-author.
• Develop high-quality figures and maps for reports, presentations, and model documentation.

• Bachelor’s degree in GIS, engineering, computer science, oceanography, biology, environmental science, or a related scientific field.
• A minimum of 1 year of relevant professional GIS experience, preferably in consulting, or 2 years of research-based GIS experience.
• Proficiency with the Esri ArcGIS suite, including ArcGIS Pro and ArcGIS Online, and extensions such as Spatial Analyst.
• Familiarity with common GIS data formats, including geodatabases, shapefiles, and raster datasets.
• Experience with GIS data creation, management, cleaning, and QA/QC.
• Familiarity with cloud computing and working with hosted data.
• Cartographic experience, including the design of maps for reports, web applications, posters, and other presentation materials.
• Basic GIS programming/scripting experience in Python, including the ability to read, modify, and run existing scripts.
• Proficiency with Microsoft Office Suite, including Excel, Access, Word, and PowerPoint.
• Basic understanding of AI prompt engineering and agentic AI concepts to support workflow optimization.
• Strong problem-solving, organizational, and time management skills, with a high level of attention to detail.
• Effective technical writing and verbal communication skills, with the ability to work independently and as part of a team.

• Experience with, or a strong understanding of, environmental modeling and the application of quantitative analyses to address environmental challenges involving contaminants in terrestrial, aquatic, and/or atmospheric systems.
• Strong presentation skills, including experience with public speaking.
• Proficiency in Python scripting; additional experience with geospatial programming languages such as SQL or Arcade is a plus.
• Familiarity with statistics and statistical modeling software, such as R or SPSS, is a plus.
• Research experience in a scientific field, including question development, methods documentation, and presentation of results; undergraduate thesis experience is a plus.

• Ability to sit at a workstation and work on a computer for extended periods.
• Ability to communicate effectively in-person and/or through electronic means.
• Manual dexterity to use a computer mouse, keyboard, and other tools.
• Visual acuity to read and interpret technical documents.

• For this role, we are open to hybrid work schedules in our South Kingstown, Rhode Islandoffice, or remote work schedules within the eastern or central regional time zones of the United States.
• This is a full-time position, typically 40 hours per week, with standard hours of 8:00 a.m. to 5:00 p.m. Eastern Time, Monday through Friday. Additional hours may be required based on project needs.

The perks of working at Tetra Tech include:

• Comprehensive and market-competitive benefits.
• Merit-based financial rewards.
• Flexibility and company-wide commitment to work/life balance.
• A collaborative team atmosphere that values the contributions of all employees.
• Learning and development opportunities for ongoing professional growth.

Tetra Tech is the leader in water, environment, and sustainable infrastructure, providing high-end consulting and engineering services for projects worldwide. With 25,000 employees working together, Tetra Tech provides clear solutions to complex problems by Leading with Science® to address the entire water cycle, protect and restore the environment, design sustainable and resilient infrastructure, and support the clean energy transition.

Tetra Tech is proud to be an Equal Opportunity Employer. All qualified candidates will be considered without regard to race, color, religion, national origin, age, disability, sex, marital or familial status, status as a protected veteran, or any other characteristic protected by law. Tetra Tech is a VEVRAA federal contractor and we request priority referral of veterans.

We invite applications from all interested parties.

Explore our open positions at https://www.tetratech.com/careers. Follow us on social media to learn more about our people, culture, and opportunities:

LinkedIn: @TetraTechCareers

X (Twitter): @TetraTechJobs

We thank all applicants for their interest, however, only those candidates selected for interviews will be contacted.

Please no phone calls or agencies.

Additional Information

• Organization: 100 DIV