System One
System One

69 System One Or Assistant Jobs Hiring Near You

Accounting Assistant Location: Parsippany, NJ Type: Contract Compensation: $25.00 Work Model ... System One not only serves as a valued partner for our clients, but we offer eligible employees ...

Executive Assistant Location: Ewing, New Jersey Type: Contract Compensation: $40- $55/hr (depending ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

Accounting Assistant

Tulsa, OK · On-site

$22 - $26/hr

Accounting Assistant Location: Tulsa, OK Type: Contract To Hire Compensation: $22-26/hr Work Model ... System One not only serves as a valued partner for our clients, but we offer eligible employees ...

... * Assist, support, and respond to inquiries and problems from engineers, crews, internal and ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

Project Engineer

Frederick, MD · On-site

$80K - $120K/yr

Prepare specifications and documentation for purchasing materials and equipment * Assist with ... System One not only serves as a valued partner for our clients, but we offer eligible employees ...

Accounting Assistant

Tulsa, OK · On-site

$22 - $26/hr

Accounting Assistant Location: Tulsa, OK Type: Contract To Hire Compensation: $22-26/hr Work Model ... System One not only serves as a valued partner for our clients, but we offer eligible employees ...

System One Pay Rate: $56.00-$95.00/hour Position Type: Long-Term Contract Position Overview System One is seeking an experienced Senior Structural Analyst to support the design and development of ...

Manage or assist with Risk Mitigation Waivers, documentation, approvals, annual reviews, and ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

Consumer Testing Research Assistant

Princeton, NJ · On-site

$20.25 - $27.75/hr

Consumer Testing Research Assistant Location : Princeton, NJ Hours/Schedule : Tuesday-Thursday ... System One not only serves as a valued partner for our clients, but we offer eligible employees ...

Job Title: Assistant Project Manager Location: Muleshoe, Texas Type: 12 months Contract ... System One not only serves as a valued partner for our clients, but we offer eligible employees ...

Job Title: Assistant Project Manager Location: Muleshoe, Texas Type: 12 months Contract ... System One not only serves as a valued partner for our clients, but we offer eligible employees ...

Job Title: Assistant Project Manager Location: Muleshoe, Texas Type: 12 months Contract ... System One not only serves as a valued partner for our clients, but we offer eligible employees ...

Executive Assistant Location: Tempe, AZ Type: 3-Month Contract Compensation: $25/hr Work Model ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

Bachelor's degree preferred but not required System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North ...

Job Title : R&D Technical Assistant Location : Madison Heights, MI Work Model : Onsite Hours : M-F ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

Showing results 41-60

System One Jobs Information

What is it like to work at System One?

System One is a professional services company that values collaboration, innovation, and a client-centric approach, fostering a dynamic and supportive work environment.

The company's team structure is designed to facilitate knowledge sharing and expertise exchange, with a flat organizational hierarchy that encourages open communication and cross-functional collaboration. System One's mission is to deliver high-quality solutions to its clients through a network of experienced professionals and cutting-edge technologies.

Working at System One may appeal to candidates who are looking for a challenging and rewarding career in a fast-paced, client-driven industry, with opportunities for professional growth and development in a collaborative and dynamic work environment.

What makes System One an attractive place to work?

System One is a leading provider of workforce solutions and staffing services, known for its expertise in delivering high-quality talent to various industries. The company's workplace is characterized by a culture of innovation, collaboration, and flexibility, offering employees opportunities to work on diverse projects and develop their skills in a dynamic environment. By joining System One, professionals can expect to contribute to the growth and success of a forward-thinking organization, with opportunities for career advancement and professional development in a rapidly evolving industry.
Infographic showing various Or Assistant job openings at System One in the United States as of August 2026, with employment types broken down into 1% As Needed, 31% Full Time, 1% Temporary, 66% Contract, and 1% Nights. Highlights an 77% Physical, and 23% Remote job distribution.

Accounting Assistant I

System One

Parsippany, NJ • On-site

$25/hr

Contractor

Medical, Dental, Vision, Life, Retirement

Posted 26 days ago


Job description

Job Title: Accounting Assistant Location: Parsippany, NJ Type: Contract Compensation: $25.00 Work Model: Onsite – onsite Hours: 9 a.m.-1 p.m., approximately 20–25 hours a week Responsibilities

  • Create and process client invoices
  • Record client payments and bank deposits
  • Enter and maintain project, client, and billing information
  • Prepare and verify invoices and supporting documentation
  • Generate and distribute billing reports
  • File and maintain electronic accounting records
  • Assist with bookkeeping and other accounting-related tasks
  • Support the Accounting team with special projects as needed

Requirements

  • High School diploma or GED required; Associate's degree preferred
  • Basic understanding of bookkeeping and accounting principles
  • Strong attention to detail and organizational skills
  • Ability to prioritize and meet deadlines
  • Proficient in Microsoft Office, especially Excel and Word
  • Professional, dependable, and able to work in a fast-paced environment
  • Strong communication and customer service skills

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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Ref: #562-Joule Staffing - Edison