Accountant I
HydroGeoLogic • Reston, VA • Full Time • $53,115–$77,015 / year
Posted on Wed, Sep 16, 2026
Job Title: Accountant I
Location: Reston, VA
Description/Job Summary
POSITION DESCRIPTION
As HydroGeoLogic, Inc. (HGL) continues to grow, we are seeking an Accountant I to join our Finance and Accounting team. This is an excellent opportunity for an early career professional who is eager to develop their accounting skills while gaining hands-on experience in Accounts Payable, expense reimbursements, account reconciliation, vendor maintenance, and general accounting processes.
The ideal candidate is detail-oriented, organized, dependable, and eager to learn. A basic understanding of accounting principles is required, while familiarity with Generally Accepted Accounting Principles (GAAP) is a plus.
Responsibilities/Duties
WHAT YOU'LL BE DOING
Accounts Payable and Invoice Processing
- Process FedEx invoices for payment, including reviewing invoices and obtaining missing charge codes or other required information.
- Monitor the HGL Accounts Payable (AP) inbox daily to:
- Process approved invoices.
- Distribute invoices for appropriate approval and coding.
- Respond to vendor and colleague inquiries related to Accounts Payable.
- Provide backup support for check runs when additional coverage is needed.
- Assist with credit applications and related documentation.
- Maintain accurate and organized AP records in accordance with company policies and established procedures.
Expense Reports and Employee Reimbursements
- Process and maintain copies of expense reports for billers and project-related activities.
- Assist with expense reimbursement processing, ensuring appropriate documentation, coding, and approvals are obtained.
- Review expense documentation for completeness and accuracy and follow up on missing information as needed.
Vendor and Employee Maintenance
- Add new employees to the company's vendor file and maintain accurate vendor information.
- Enter and maintain employee addresses and applicable banking information, including required bank account details, in accordance with company procedures and internal controls.
- Assist with maintaining accurate and up-to-date vendor records.
Account Reconciliation and Prepaids
- Perform data entry and reconciliation of prepaid accounts.
- Monitor the Prepaid Airfare spreadsheet and reconcile information provided by the Accounting team.
- Identify discrepancies between the Prepaid Airfare spreadsheet and the General Ledger.
- Prepare accounting vouchers to correct or resolve identified discrepancies.
- Process and reconcile credit card transactions and supporting documentation.
- Perform the monthly reconciliation of bills.
- Assist with other prepaid and account reconciliation activities as assigned.
General Accounting Support
- Maintain accurate accounting records and support documentation.
- Assist with researching and resolving accounting discrepancies.
- Work collaboratively with colleagues, project personnel, vendors, and other members of the Finance and Accounting team.
- Assist with other routine accounting and administrative duties as assigned.
- Utilize approved digital and AI-assisted tools, where appropriate, to support technical documentation, data analysis, project communications, and workflow efficiency.
Minimum Requirements
WHAT YOU NEED TO BE SUCCESSFUL
- Bachelor’s degree in Accounting, Finance, Business, or a related field.
- Minimum two years of related work experience.
- Strong attention to detail and accuracy.
- Organizational and time management skills.
- Ability to handle confidential financial and employee information appropriately.
- Strong communication skills (both written and verbal).
- Ability to prioritize tasks and meet deadlines in a fast-paced environment.
- Proficiency with Microsoft Office, particularly Excel.
- Demonstrated ability to learn and adopt new technologies and digital tools to improve project delivery and operational efficiency.
Desired Qualifications
WHAT YOU NEED TO STAND OUT – Preferred, not required
- Familiarity with GAAP.
- Deltek Costpoint experience.
- Experience and flexibility in using generative AI tools (e.g., Microsoft Copilot, ChatGPT, Claude, or similar) to improve technical writing, data analysis, research, visualization, or project delivery efficiency.
Physical & Environmental Requirements
PHYSICAL & COGNITIVE REQUIRMENTS
- Ability to lift/move/relocation items up to 10 lbs.
- Prolonged sitting up to 70% of the time.
- Repetitive hand motions (typing).
- Ability to see details at close range and a distance.
- Viewing computer screen for extended periods.
- Ability to interpret and analyze visual data.
- Reading and interpreting regulations.
- Communicating effectively with clients, team members, and stakeholders.
- Managing competing deadlines and shifting priorities.
WORK ENVIRONMENT REQUIREMENTS
- Office work environment
This description is not a comprehensive listing of activities, duties or responsibilities that may be required of the employee. Other duties, responsibilities and activities may be assigned or may be changed at any time with or without notice.
Details
Work Schedule: HGL office work is dictated by a 5-day work week up to 40 hours per week; however, accounting deadline schedules may require occasional longer hours.
Office Type: Hybrid, in office 3 days per week after 90-day training period, which will be fully on-site.
Travel: No travel expected.
A favorable pre-hire drug test is required.
All positions are subject to a pre-hire education and driving record verification.
This specific role supports a U.S. Federal government contract which requires employees engaged on this contract to be U.S. citizens.
MORE ABOUT HGL AND THE OPPORTUNITY
At HGL, we share a drive and vision to restore natural resources and provide ongoing stewardship of our environment to benefit present and future generations. We believe that we can make a difference in improving the world we live in through collaboration, teamwork, and a positive work environment. This unites and empowers us to strive for excellence in all our endeavors.
HGL - WHO WE ARE
The exceptional quality of our people is key to our strength. We value our employees as individuals and as important members of our team. We offer a work environment that is flexible, inclusive, and dedicated to creating a sustainable future. By cultivating a culture of innovation, we’re able to adapt and augment our services to solve complex environmental and natural resources challenges.
Projects at HGL primarily span the United States and its territories, tackling problems associated with emerging contaminants (like PFAS), radiological contamination, and military munitions, along with chemical contamination in groundwater, surface water, sediments, and soil.
With over 550 employees, HGL is large enough to execute high-profile projects, but small enough to develop personal working environments with our talented team members. By joining HGL, you will be working toward restoring the environment and protecting our future.
HGL - WE INVEST IN YOU
It’s not just a job, it’s your career. HGL provides career growth opportunities via mentoring, training, education, and support for your certifications and licenses. Achieve your career goals and help HGL achieve its mission of restoring the environment to beneficial use for our clients and communities.
We are an Equal Opportunity employer. All applicants will receive consideration for employment without regard to race, color, religion, sex, age, national origin, disability, protected veteran status, or other protected category. Some positions may require U.S. citizenship. Applicants who wish to request a reasonable accommodation during the recruitment process should contact Human Resources directly at 703-478-5186.
EEO notices: US Equal Opportunity Employment Poster, US Equal Opportunity Supplemental Poster, Know Your Rights, and Pay Transparency Notice.
A full list of benefits is available at www.hgl.com/careers/.
Digital & AI Proficiency: HGL encourages the responsible use of approved AI-enabled and digital technologies to improve productivity, technical quality, decision-making, and project delivery. Candidates who demonstrate curiosity, adaptability, and experience leveraging emerging technologies are highly valued.
The annual salary for this position ranges from $53,113 - $77,015. This position's final salary can be impacted by various factors including, but not limited to, contractual requirements, geographic location, job-related education, training, experience, and skills. If your desired salary falls outside of this range, we hope you'll still apply as there may be other positions that better align.
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