Senior Accountant

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We’re not just placing cones – we’re rethinking the way traffic moves. Helix is a national leader in traffic control and work zone safety, delivering smart, responsive solutions across the country. From high‑tech ITS systems to boots‑on‑the‑ground support, we’re shaping the future of infrastructure safety.

• A culture of safety, service, and integrity
• Real career growth through training and internal mobility
• The backing of a national organization, with the heart of a local team
• A place where your work directly improves public safety

Our work is fast‑paced, hands‑on, and essential – and that’s exactly what makes it rewarding. Every role at Helix plays a part in protecting lives and keeping communities moving. If you’re motivated, adaptable, and looking for a career with purpose, we’d be proud to have you on our team.

Northeast Traffic Control Services is part of the Helix Traffic Solutions network and delivers expert traffic management services across the region. With a strong focus on safety and efficiency, Northeast Traffic partners closely with Departments of Transportation to design and execute well‑managed traffic plans. Our work includes overseeing lane closures, flagging operations, custom signage, and equipment rentals for construction zones—all in service of protecting both workers and the traveling public.

As a growing leader in the traffic management industry, we are committed to operational excellence, teamwork, and creating safe, well‑coordinated environments for infrastructure projects.

We are seeking an experienced Senior Accountant to support our Plymouth, MA operation during an important period of transition and growth. The Senior Accountant will oversee full‑cycle accounting for the Plymouth facility, supporting general ledger activities, reconciliations, month‑end close, sales tax, and audit preparation. The ideal candidate will be a detail‑oriented, analytical professional who thrives in a hands‑on environment and enjoys partnering with operations—particularly within a union‑influenced or field‑based business.

This position also offers a clear upward trajectory as the organization continues to grow.

• Perform full‑cycle accounting for the Plymouth location in compliance with GAAP.
• Prepare and post journal entries; maintain the general ledger.
• Assist in completing monthly and quarterly account reconciliations and resolve variances.
• Support month‑end and year‑end close processes.
• Prepare audit schedules and assist with year‑end audit coordination.

• Provide AP and AR support as needed.
• Complete sales tax filings and ensure compliance with state/local requirements.
• Perform expense and cost analysis, variance reviews, and accounting research.
• Partner with field and union teams to ensure accurate accounting treatment.

• Work closely with the Director of Finance on financial operations and process improvements.
• Support evolving responsibilities tied to broader accounting team restructuring.
• Enhance documentation, internal controls, and workflow efficiency.

• Prepare daily, monthly, and ad‑hoc financial reporting for leadership.
• Use advanced Excel (pivot tables, VLOOKUPs, formulas) for analysis.
• Utilize ERP systems such as Net Suite or Sage (experience preferred).

• Bachelor’s degree in Accounting or Finance.
• 5–10 years of full‑cycle accounting experience (4+ considered for strong candidates).
• Strong general ledger and accounting foundation.
• Experience with AP, AR, reconciliations, and month‑end close.
• Sales tax experience required.
• Prior experience preparing for month‑end, year‑end, and external audits.
• Experience with unionized environments preferred.
• Strong Excel skills required.

• Net Suite and/or Sage experience.
• Industry experience in construction, field services, or traffic control.
• Strong…