Executive Assistant

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 .

Responsibilities:

Executive Support

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.

Initiatives & Accountability

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 escalate when appropriate.

Provide regular updates on completed, pending, and overdue items.

Support cross-functional initiatives involving Commercial, Operations, Finance, HR, and other departments.

Commercial & Operational Support

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.

AI & Knowledge Management

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.

Communication & Relationships

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.

Basic Requirements:

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, PowerPoint, Word, and Teams.

Excellent written and verbal communication skills.

Exceptional organization, time management, and prioritization; able 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

Preferred Requirements:

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.

Key Competencies

Executive Judgment: Knows when to act independently and when to escalate.

Ownership & Accountability: Takes responsibility for assignments and drives them to completion.

Proactive Mindset: Anticipates needs, identifies problems, and recommends solutions.

Technology & AI Proficiency: Uses modern tools to improve efficiency, accuracy, and productivity.

Communication & Diplomacy: Follows up with senior stakeholders confidently and professionally.

Confidentiality & Trust: Maintains the highest standards of professionalism and discretion .

Measures of Success

Performance will be evaluated on:

Timely completion and follow-through on key projects and leadership initiatives.

Consistent tracking of, and accountability for, action items and deliverables.

Accuracy and quality of executive communications, reports, and presentations.

Well-prioritized support for two senior executives with competing demands.

Measurable use of AI and technology to improve productivity, including a maintained executive knowledge base.

Strong relationships and clear communication across leadership teams.

Reduced administrative burden on the COO and CCO.

#LI-Onsite

Besides Health, Dental and Vision Insurance, we contribute to a 401k, offer a generous tuition reimbursement program, TONS of safety training for some positions with opportunities for external trainings and certifications, Mentorship & Career Succession Planning, Relocation Opportunities, Auto/Home insurance discounts, pet assistance discount plans, discounted movie passes & more!

To learn more about our business, culture, and the exciting work that we are doing in the industry, find us on LinkedIn, Instagram (@triumvirateenvironmental), or our website !

Triumvirate Environmental is committed to a diverse and inclusive workplace. As an Equal Opportunity Employer (EOE), Triumvirate does not discriminate based on race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. Individuals with Disabilities and Protected Veterans are encouraged to apply.

If you have a disability and need accommodation during the application and hiring process, please contact us at https://www.triumvirate.com/contact or call us at 888-834-9697. The requirements listed above are representative of the knowledge, skill, and/or ability required. To view our California Privacy Notice and Policy, click here .

Actual starting base pay may vary based on factors such as education, experience, skills, location and budget.

Pay Range $70,000 — $90,000 USD