Chief of Staff to the APTIM Chairman & CEO

• Position Overview:

• The Chief of Staff (CoS) to the Chairman & CEO serves as a trusted strategic partner and execution leader, enabling the CEO and Leadership Team (LT) to operate with organization, discipline, and speed.

The CoS is empowered to lead initiatives, orchestrate cross-functional teams, and accelerate decision-making. This includes direct engagement in merger and acquisition (M&A) activities. In addition, the CoS supports Board, and sponsor interactions, ensuring thorough preparation, actionable insights, and effective follow-through. This CoS will be required to collocate with the Chairman and CEO at least one week per month. This could either be at the Denver office or at another APTIM location.

• Key Responsibilities and Accountabilities:

• Executive Enablement & Strategic Support
• + Serve as a strategic advisor and operational partner to the Chairman & CEO, translating priorities into actionable plans and results.

+ Support the CEO across a broad range of executive activities, including Board engagement, sponsor (Veritas Capital) interactions, earnings calls, gate reviews, and risk management initiatives. + Lead the development of high-quality analyses, research, and executive-level presentations to inform decision-making. + Prepare the CEO for internal and external engagements, including client meetings, project reviews, and public-facing events.

• Enterprise Execution & Leadership Team Effectiveness
• + Drive execution of enterprise priorities and corporate initiatives, ensuring timely delivery and measurable impact.

+ Enhance accountability and decision-making velocity by coordinating and supporting interdisciplinary teams aligned to Leadership Team priorities. + Facilitate Executive Leadership Team meetings, including agenda development, engagement of all participants, and management of action tracking and follow-up. + Enhance and manage operating rhythms, dashboards, and performance tracking mechanisms to monitor progress and outcomes.

• Cross-Functional Leadership & Collaboration
• + Convene and support cross-functional teams comprised of Leadership Team members and subject matter experts to execute strategic initiatives.

+ Promote alignment across business units and corporate functions, fostering a culture of ownership, urgency, and results. + Engage directly with project teams and field operations through site visits and reviews to maintain connection to execution realities.

• Mergers & Acquisitions / Corporate Development
• + Play a supporting role in M&A activities, including: + Supporting the development of qualitative and quantitative analysis. + Supporting and or coordinating due diligence efforts.
• Market Intelligence & Strategic Insight
• + Analyze market dynamics, including competitive positioning, macroeconomic trends, and regulatory developments to inform corporate strategy. + Provide insights that shape strategic planning, growth initiatives, and capital allocation decisions.
• Client, Business Development & External Engagement
• + Support the pursuit of key growth opportunities through development of proposals and client presentations. + Participate in client meetings and strategic account discussions to strengthen relationships and advance business objectives. + Represent the business in internal and external settings.
• Culture & Organizational Engagement
• + Support and participate in APTIM Employee Involvement Networks and key engagement initiatives.

• Basic Qualifications:

• + Bachelor's degree required, MBA or advanced degree preferred.

+ Experience in consulting, engineering, environmental and infrastructure project delivery, investment banking, private equity, corporate development. + Strong organizational skills + Strong financial, analytical, and business acumen. + Ability to lead cross-functional initiatives and influence senior stakeholders. + Exceptional written and verbal communication and presentation skills. + Working knowledge or AI tools that enable valuable growth and delivery use cases.

• Leadership Attributes
• + •

Strategic & Analytical:

• Integrates market intelligence with business priorities to drive informed decisions. +

• Execution-Focused:

• Drives initiatives from concept to completion with rigor and accountability. +

• Influential Leader:

• Builds alignment across diverse stakeholders with or without formal authority. +

• Trusted Partner:

• Operates with sound judgment, discretion, and organization. +

• Agile & Resilient:

• Thrives in a dynamic, fast-paced, and high-performance environment.
• About APTIM
• APTIM enhances the quality of the environment, wellbeing of people, resilience of communities, and opportunity for employees to make a difference, not just a living.

A leading professional solutions firm, we specialize in environmental, sustainability, resilience, and infrastructure solutions. Our team of experts provide these integrated solutions for forward-thinking government agencies, commercial and industrial clients, and energy customers. Together, we create sustainable and resilient communities for all. What you can expect from

APTIM:

+ Work that is worthy of your time and talent + Respect and flexibility to live a full life at work and at home + Dogged determination to deliver for our clients and communities + A voice in making our company better + Investment into your personal and professional development As of the date of this posting, a good faith estimate of the current pay range for this position is $100K to $150K per year. Compensation depends on several factors including: experience, education, key skills, geographic location of the position, client requirements, external market competitiveness, and internal equity among other employees within APTIM.

• Employee Benefits
• APTIM Corporation is committed to providing an extensive range of benefits that protect and promote the health and financial well-being of our employees and their families through the APTIM Benefits Marketplace https://aptim.

makeityoursource.com/ . + Medical, vision, and dental insurance: Through the marketplace, our employees can choose benefits from five metallic levels and several carriers to find the right benefits that work for them in their location. + Company paid and optional Life insurance + Short-term and long-term disability insurance + Accident, Critical Illness, and Hospital Indemnity coverage + Paid holidays, vacation, and sick leave (eligibility based on company policy and applicable law) + 401(k) APTIM offers three 401k plans through the Aon Pooled Employer Plan (PEP). The specific plan you are eligible for depends on the business unit you are in. The details of the largest plan are found here: + APTIM 401(k) Guide (https://aptim.makeityoursource.com/getattachment/427b25cf-c3d5-43c1-97af-a3c3f474a136/APTIM-Corp-401(k

• Guide.pdf) + APTIM
• Helpful Documents
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• About APTIM
• In Pursuit of Better
• \#LI-ONSITE Equal Opportunity Employer Minorities/Women/Protected Veterans/DisabledApplicants with a physical or mental disability who require a reasonable accommodation for any part of the application or hiring process may make their request known by e-mailing HRQuestions@cbifederalservices.

com or calling 855.343.5600 for assistance.

EOE/Vets/Disability