Executive Assistant

Triumvirate Environmental•Somerville, MA

4d•Hybrid

About The Position

Triumvirate Environmental is hiring a Senior Executive Assistant to provide strategic, operational, and administrative support to its Chief Operating Officer (COO) and Chief Commercial Officer (CCO). The role is for an organized, resourceful business partner who takes ownership, drives execution, and embraces technology. The Executive Assistant works independently, manages multiple initiatives, anticipates executive needs, handles competing priorities, and holds others accountable for commitments and deadlines. The position coordinates projects, tracks commitments, and uses AI and other technology to turn executive priorities into measurable results. The position is based with the Somerville, Massachusetts team and is fully onsite for the first 90 days. After that, it follows a hybrid schedule approved by the manager and Human Resources. Performance is evaluated on project follow-through, accountability for action items and deliverables, accuracy of executive communications and reporting, support for two executives with competing demands, measurable use of AI and technology, relationships and communication across leadership teams, and reduced administrative burden on the COO and CCO.

Requirements

At least 7 years of progressive experience supporting senior executives, preferably at the C-suite level.
Bachelor's degree in Business Administration, Management, Communications, or a related field, or an equivalent combination of education and experience.
Demonstrated experience coordinating projects, managing timelines, and tracking deliverables.
Practical experience using AI tools to improve productivity and business workflows.
Advanced proficiency in Microsoft Office, including Outlook, Excel, PowerPoint, Word, and Teams.
Excellent written and verbal communication skills.
Exceptional organization, time management, and prioritization skills, with the ability to work independently and manage competing executive priorities.
Strong judgment, problem-solving skills, and attention to detail.
Proven discretion with confidential and sensitive information.
Must be eligible to work in the United States without future sponsorship.
Must have a reliable form of transportation.

Nice To Haves

Experience supporting executives in a national, multi-location organization.
Experience supporting Sales, Operations, or Commercial leadership, ideally in environmental services, EHS, or another regulated industry.
Familiarity with Oracle, CRM systems, project management platforms, and reporting tools.
Experience with Claude, Microsoft Copilot, ChatGPT, Power Automate, or similar AI and automation platforms.
Experience developing executive dashboards, project trackers, leadership reporting, and knowledge bases.

Responsibilities

Manage complex calendars, travel, expenses, and internal and external meeting schedules for both executives.
Anticipate needs, prioritize competing demands, and independently resolve scheduling and administrative conflicts.
Prepare presentations, reports, correspondence, and executive briefing materials.
Serve as liaison between the executives, senior management, and external stakeholders.
Exercise sound judgment and maintain strict confidentiality regarding business and personnel matters.
Track key Commercial and Operations projects and strategic initiatives, including timelines, milestones, owners, and deliverables.
Maintain project trackers and executive dashboards that provide leadership visibility into progress.
Document executive meeting decisions, action items, owners, and deadlines, and translate decisions into clear next steps.
Follow up with owners on outstanding deliverables, flag delays and open decisions, escalate when appropriate, and provide updates on completed, pending, and overdue items.
Support cross-functional initiatives involving Commercial, Operations, Finance, HR, and other departments.
Coordinate executive meetings, leadership and operational reviews, strategic planning sessions, and management retreats, including agendas and advance materials.
Compile inputs for commercial scorecards, pipeline reviews, forecasts, and performance reporting.
Monitor commercial and operational priorities and management follow-through for the CCO and COO.
Work with regional and departmental leaders to obtain information and ensure timely responses.
Consolidate information into concise executive-level summaries.
Use AI tools such as Claude, Microsoft Copilot, and ChatGPT to draft communications, presentations, meeting summaries, and reports.
Identify and automate repetitive tasks and recommend practical AI applications as capabilities evolve.
Build and maintain an executive knowledge base containing decisions, SOPs, templates, meeting summaries, and COO and CCO priorities for accurate and consistent AI-assisted output.
Use AI in accordance with company policy, protect confidentiality, and verify accuracy.
Build strong working relationships with executive leadership and management teams.
Facilitate communication between departments and follow up with senior leaders diplomatically and confidently.
Keep executives informed without overwhelming them with detail.