Executive Assistant

Triumvirate Environmental, one of the largest environmental services firms in North America, is seeking a Executive Assistant for our Somerville, MA team.

Triumvirate Environmental is hiring a Senior Executive Assistant to provide strategic, operational, and administrative support to our Chief Operating Officer (COO) and Chief Commercial Officer (CCO). This role requires an organized, resourceful business partner who takes ownership, drives execution, and embraces technology. You must be comfortable working independently, managing multiple initiatives, and respectfully holding others accountable for commitments and deadlines.

This is more than a traditional administrative role. You will anticipate needs, manage competing priorities, and drive accountability across key business initiatives. You will be a trusted business partner who coordinates projects, tracks commitments, and uses AI and other technology to turn executive priorities into measurable results.

Triumvirate Environmental provides leading organizations in the higher education, life sciences, healthcare, and advanced manufacturing sectors with diverse services and expertise to assist them with compliance management. At Triumvirate Environmental, we strive to WOW both our employees and our customers. Our unique culture fosters growth, development, education, and creativity.

This position will be fully onsite for the first 90 days. After 90 days, the position will follow a hybrid schedule approved by the manager and Human Resources.

• Manage complex calendars, travel, expenses, and internal and external meeting schedules for both executives.
• Anticipate needs, prioritize competing demands, and resolve scheduling and administrative conflicts independently.
• Prepare presentations, reports, correspondence, and executive briefing materials.
• Serve as the executives' liaison to senior management and external stakeholders.
• Exercise sound judgment and maintain strict confidentiality, including on business and personnel matters.

• Track key projects and strategic initiatives across Commercial and Operations, including timelines, milestones, owners, and deliverables.
• Maintain project trackers and executive dashboards that give leadership clear visibility into progress.
• Document decisions, action items, owners, and deadlines from executive meetings, and turn leadership decisions into clear next steps.
• Follow up with owners on outstanding deliverables, flag delays and open decisions, and elevate when appropriate.
• Provide regular 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.

• 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 new AI applications as capabilities evolve.
• Build and maintain an executive knowledge base (decisions, SOPs, templates, meeting summaries, and COO and CCO priorities) that AI tools can draw on for accurate, consistent output.
• Use AI within company policy, protecting confidentiality and verifying accuracy.

• Build strong working relationships with executive leadership and management teams.
• Facilitate communication between departments, and follow up with senior leaders with diplomacy and confidence.
• Keep executives informed without overwhelming them with detail.

• 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 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,…