Accounts Payable Specialist
ABOUT THE ORGANIZATION Founded in 1994 as a small, diversified professional services company, Delphinus today employs more than 650 professional and technical personnel supporting a customer base that spans the Defense and Federal markets.
Headquartered in Newtown Square, PA, we have primary offices in Norfolk, VA; San Diego, CA; and Bremerton, WA.
Company Benefits*:
Comprehensive health program for employee and dependents
Company paid Dental and Vision
401(k) with company match
Short-term and Long-term disability - Company paid
Life Insurance and AD&D - Company paid
Voluntary Spouse and Child Life Insurance
Paid time off with company holiday
Tuition Reimbursement
Employee Assistance Program (EAP)
*Benefit eligibility is set forth in benefit plan documents and organization policies.
DESCRIPTION
GENERAL SUMMARY: Delphinus Engineering has an immediate requirement for an Accounts Payable Specialist reporting to the Accounts Payable Supervisor at our Corporate office in Newtown Square, PA. The Accounts Payable Specialist will provide general AP processing of invoices, travel advances and expense reports. Applicant shall be familiar with basic accounting skills and working knowledge of MS products (MS excel, word). The AP Clerk will work as part of a team and will need effective communication in daily interactions with internal and external customers.
LOCATION: Newtown Square, PA
DUTIES AND RESPONSIBILITIES, INCLUDING BUT NOT LIMITED TO:
Access invoices and travel advances from general accounts payable/ travel email inbox.
Match purchase orders with invoices for completes.
Enter invoices in Deltek Costpoint accounting system for payment.
Process travel advances for immediate payment to employees, ensuring compliance with proper per diem rates.
Process daily postings of payables in Deltek accounting system.
Communicate with various divisions invoices that are not able to be entered, daily follow up until invoice issues are resolved.
Maintain reconciliation spreadsheets for open travel advances that need to be reconciled with expense reports.
File invoices and appropriate documents.
Any and all other duties as assigned.
REQUIREMENTS:
Basic Qualifications:
Prior Experience in Accounts Payable Processing
Understanding of Project accounting
Proficiency in MS Office - especially MS Excel
Ability to effectively multi-task
Additional Qualifications:
Excellent oral and written communication skills
Knowledge of Deltek Costpoint a plus
EDUCATION:
Associate degree or equivalent experience, minimum of 2 years
Wage Range: $24.00 - $34.00 hourly
In determining compensation, various factors will be considered, including but not limited to, educational background; relevant experience, knowledge, skills, and abilities, market factors; and geographic location.
EOE STATEMENT We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status or any other characteristic protected by law.
EXEMPT/NON-EXEMPT Exempt
REQ NUMBER ACC-26-00003
ABOUT THE ORGANIZATION Founded in 1994 as a small, diversified professional services company, Delphinus today employs more than 650 professional and technical personnel supporting a customer base that spans the Defense and Federal markets.
Headquartered in Newtown Square, PA, we have primary offices in Norfolk, VA; San Diego, CA; and Bremerton, WA.
Company Benefits*:
Comprehensive health program for employee and dependents
Company paid Dental and Vision
401(k) with company match
Short-term and Long-term disability - Company paid
Life Insurance and AD&D - Company paid
Voluntary Spouse and Child Life Insurance
Paid time off with company holiday
Tuition Reimbursement
Employee Assistance Program (EAP)
*Benefit eligibility is set forth in benefit plan documents and organization policies.
DESCRIPTION
GENERAL SUMMARY: Delphinus Engineering has an immediate requirement for an Accounts Payable Specialist reporting to the Accounts Payable Supervisor at our Corporate office in Newtown Square, PA. The Accounts Payable Specialist will provide general AP processing of invoices, travel advances and expense reports. Applicant shall be familiar with basic accounting skills and working knowledge of MS products (MS excel, word). The AP Clerk will work as part of a team and will need effective communication in daily interactions with internal and external customers.
LOCATION: Newtown Square, PA
DUTIES AND RESPONSIBILITIES, INCLUDING BUT NOT LIMITED TO:
Access invoices and travel advances from general accounts payable/ travel email inbox.
Match purchase orders with invoices for completes.
Enter invoices in Deltek Costpoint accounting system for payment.
Process travel advances for immediate payment to employees, ensuring compliance with proper per diem rates.
Process daily postings of payables in Deltek accounting system.
Communicate with various divisions invoices that are not able to be entered, daily follow up until invoice issues are resolved.
Maintain reconciliation spreadsheets for open travel advances that need to be reconciled with expense reports.
File invoices and appropriate documents.
Any and all other duties as assigned.
REQUIREMENTS:
Basic Qualifications:
Prior Experience in Accounts Payable Processing
Understanding of Project accounting
Proficiency in MS Office - especially MS Excel
Ability to effectively multi-task
Additional Qualifications:
Excellent oral and written communication skills
Knowledge of Deltek Costpoint a plus
EDUCATION:
Associate degree or equivalent experience, minimum of 2 years
Wage Range: $24.00 - $34.00 hourly
In determining compensation, various factors will be considered, including but not limited to, educational background; relevant experience, knowledge, skills, and abilities, market factors; and geographic location.
EOE STATEMENT We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status or any other characteristic protected by law.
EXEMPT/NON-EXEMPT Exempt
REQ NUMBER ACC-26-00003
Job ID: 519187704
Originally Posted on: 4/29/2026
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