Project Billing Specialist

We are seeking a detail-oriented, proactive Project Billing Specialist to join our growing Accounting team. This role is critical in ensuring accurate, timely, and contract-compliant client invoicing for a variety of engineering projects. The ideal candidate has prior experience in professional services billing and a strong working knowledge of Deltek products is highly desirable.

As a key member of the Accounting team, you’ll collaborate closely with Project Managers, Project Coordinators, and Accounting staff to support client billing, accounts receivable, and financial compliance processes.

Why join the MacKay Sposito team?

• A people-first culture - We are dedicated to our employees and their families. We want to do what’s best for them, and their well-being helps drive our business decisions.   
• Excellent reputation - Through our 50-year history, MacKay Sposito has built and maintained an excellent reputation in our community, and with our clients and business partners. You’ll be joining a team with a strong foundation and reputation that you can be proud to be part of.
• We give back to the community - MacKay Sposito and our employees believe in giving back to the communities we serve. As a firm, we supported a host of local organizations focusing on our community pillars of veterans and youth. Our team members volunteer as commissioners, committee and board members, youth coaches, and a host of other volunteer positions and initiatives.

Key Responsibilities:

• Prepare, review, and process monthly client invoices in accordance with contract terms (T&M, Fixed Fee, Percent Complete, etc.) 
• Coordinate with Project Managers and Project Coordinators to obtain approvals and resolve discrepancies before finalizing invoices. 
• Ensure labor, expense, subconsultants, and fee schedules are correctly applied and supported by backup documentation 
• Generate drafts, monitor WIP,  and ensure data accuracy within the Vantagepoint platform. 
• Support the Project Accountant with maintenance of updating billing terms, project status, and contract values within the system. 
• Track outstanding invoices and coordinate A/R follow-up with clients. 
• Generate ad hoc reports or research special requests from Project Managers 
• Determine routine priorities and special prioritization needs for work activities, checking in with supervisory staff as needed to resolve competing priorities.

Required: 

• 2+ years of billing experience in an engineering or professional services environment. 
• Strong understanding of contract billing terms and project-based accounting. 
• Must be dependable and have a good work ethic. 
• Demonstrated success in productivity, accuracy, and timeliness in completing work. 
• Excellent attention to detail, time management, and organizational skills. 

Preferred: 

• Proficiency in Deltek Vantagepoint is highly desirable. 
• Knowledge of compliance frameworks such as FAR or other regulatory standards. 
• Familiarity with Google platform. 

Our Values:

At MacKay Sposito, we’re serious about our work, but we don’t take ourselves too seriously. We have a unique and diverse mix of employees who enjoy each other’s company. In addition to having first-rate technical skills, we search out people who are friendly, honest and dedicated to their work. We know work isn't only about who you work for, it is also about what you do and how you do it. Led by the strength of our values and a culture shaped by employee ownership, we network with each other, build on each other's contributions, and collaborate to make great things possible. 

We believe firmly in the principle of constructive candor – always telling the client everything they need to know to make fully informed decisions. By creating a positive, committed and supportive environment, we’re able to challenge our people to be the best that they can be, and to celebrate every success.

Who We Are:

With more than 50 years of experience, MacKay Sposito is a multidisciplinary firm based in Vancouver, Washington, specializing in public works, energy, and land development. Our passionate team focuses on building lasting relationships through quality work, creative design, and collaboration. We offer civil engineering, land surveying, environmental science and permitting, landscape architecture, and construction management and inspection services. With the addition of our subsidiary, Riparia Environmental, we now deliver a full suite of services from design and engineering to maintenance and environmental compliance. Together, we balance development with environmental stewardship and sustainability.

We encourage you to ask around about us. Do some digging. We’re confident that you’ll want to learn more. And we look forward to talking with you about a future with MacKay Sposito.  

Please note that the salary information shown below is a general guideline only. Salaries are based upon candidate experience and qualifications, as well as various market and business considerations.

The wage range for this position is $30.25- $38.00/hour depending on experience.  

Full time employees receive a well rounded benefit package including access to our company sponsored Medical (including an HSA High Deductible option), Dental, Vision, FSA, and Supplemental Life Insurance plans as well as company paid Life Insurance, Short Term Disability, and Long Term Disability coverage. Employees are eligible to participate in our company 401k plan with up to a 4% match. Additionally, employees also receive paid vacation time, paid sick time, and 11 paid holidays. MacKay Sposito pays for expenses associated with licensure as well as annual profit sharing bonuses.

Employment requires passing a pre-employment background check and drug screen. 

As a federal Contractor we participate in E-Verify and are proud to be an Equal Employment Opportunity Employer.