Payroll Assistant Jobs in Colorado (NOW HIRING)

The Payroll Specialist supports a growing accounting and finance team by processing accurate and timely weekly payroll for office and field employees across multiple states. This role suits someone who enjoys working with numbers, thrives in a fast-paced environment, and takes pride in ensuring employees are paid correctly while maintaining strict compliance with payroll regulations. You will gain hands-on experience with union payroll, certified payroll reporting, payroll taxes, and process improvements, while building long-term payroll expertise alongside an experienced payroll team.

• Process and review weekly payroll for employees across multiple states, ensuring accuracy and timeliness.
• Audit timesheets for completeness and accuracy, and follow up promptly on missing or incorrect information.
• Maintain employee payroll records, including direct deposits, deductions, garnishments, and tax information.
• Assist with payroll corrections, reimbursements, and resolution of employee pay inquiries in a professional and timely manner.
• Support union payroll reporting and certified payroll requirements in accordance with applicable regulations.
• Help prepare payroll reports, audit documentation, and other compliance-related reporting as needed.
• Collaborate closely with HR, Accounting, and Operations to ensure accurate and efficient payroll processing.
• Identify payroll discrepancies, investigate root causes, and assist in implementing improvements to payroll processes.
• Handle a high volume of data entry while maintaining a high level of accuracy and confidentiality.
• Use Microsoft Excel and payroll software to manage, analyze, and reconcile payroll data.
• Apply a basic understanding of federal and state payroll taxes, garnishments, and prevailing wage requirements where applicable.

• High school diploma or equivalent.
• 1–3 years of payroll processing experience.
• Strong attention to detail and a high degree of accuracy in all payroll tasks.
• Comfort working with recurring payroll deadlines and time-sensitive deliverables.
• Ability to handle confidential employee information with discretion and professionalism.
• Proficiency in Microsoft Excel, including data entry and basic data analysis.
• General data entry skills with the ability to manage a high volume of information.
• Familiarity with payroll software and basic payroll systems functionality.

• Associate’s degree in Accounting, Business, or a related field.
• Experience processing multi-state payroll.
• Experience in construction, engineering, AEC, manufacturing, or similar industrial environments.
• Union payroll experience, including exposure to union rules and reporting.
• Certified payroll and prevailing wage reporting exposure, including Davis-Bacon concepts.
• Experience with Viewpoint / Vista payroll or ERP systems.
• Basic understanding of federal and state payroll tax regulations.
• Knowledge of garnishment compliance requirements.
• Curious and analytical mindset, with the ability to notice when something looks off and investigate further.
• Dependable, accurate, and willing to learn established payroll processes and best practices.

This is an office-based role with standard business hours, with peak workload occurring around weekly payroll deadlines. The environment is fast-paced due to weekly payroll cycles and frequent workforce changes, requiring strong organizational skills and comfort with shifting priorities. You will work as part of a small payroll team, currently including one other Payroll Specialist, and collaborate regularly with HR, Accounting, and Operations. The organization serves a diverse customer base across markets such as airport, automotive, food and beverage, parcel, postal, and power and heavy industrial, and has in-house capabilities in mechanical and control systems design, fabrication, installation, integration, commissioning, training, and maintenance. The culture emphasizes a “can do” attitude, long-term customer relationships, safety, quality, and the professional growth of employees. The company maintains a systematic safety program, a comprehensive quality management system, and the ability to effectively mobilize across the United States and internationally, offering a stable and supportive environment for building long-term payroll expertise.

This is a Contract to Hire position based out of Aurora, CO.

The pay range for this position is $26.00 - $31.25/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: • Medical, dental & vision • Critical Illness, Accident, and Hospital • 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available • Life Insurance (Voluntary Life & AD&D for the employee and dependents) • Short and long-term disability • Health Spending Account (HSA) • Transportation benefits • Employee Assistance Program • Time Off/Leave (PTO, Vacation or Sick Leave)

This is a fully onsite position in Aurora,CO.

This position is anticipated to close on Aug 7, 2026.

Aston Carter provides world-class corporate talent solutions to thousands of clients across the globe. Specialized in accounting, finance, human resources, talent acquisition, procurement, supply chain and select administrative professions, we extend the capabilities of industry-leading companies. We draw on our deep recruiting expertise and expansive network to meet the evolving needs of our clients and talent community with agility and excellence. With offices across the U.S., Canada, Asia Pacific and Europe, Aston Carter serves many of the Fortune 500. We are proud to be a ClearlyRated Best of Staffing® Platinum Award winner for both client and talent service.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing process due to a disability, please email astoncarteraccommodation@astoncarter.com for other accommodation options.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.