Sr. Client Success Manager

Ameresco

1d • $101,000 - $161,500

About The Position

Ameresco, Inc. (NYSE:AMRC) is a leading energy solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the global energy transition. We are a trusted, full-service partner to public sector and government entities, K-12 schools, higher education, utilities, and healthcare customers across the U.S., Canada, the U.K., and Europe. At Ameresco, we show the way by developing, constructing and operating tailored smart energy efficiency solutions, distributed energy resources, and infrastructure upgrades that drive cost savings, resilience, decarbonization, and innovation. Our comprehensive portfolio is built to address the challenges of today and adapt the future, ensuring long-term sustainability and success for our customers. Ameresco has an opening for a experienced Senior Client Success Manager to serve as a strategic partner for our enterprise-level customers. In this high-impact role, you will own the post-sales relationship with large, complex accounts, ensuring they achieve maximum value from our solutions while driving retention, satisfaction, and expansion opportunities. The ideal candidate brings deep expertise in managing sophisticated enterprise clients, strong business process optimization skills, a solid understanding of accounting principles, and proven experience in service delivery and software development management. Knowledge of Distributed Energy Resources (DER), energy markets, or O&M activities is considered a significant asset. This is an individual contributor role focused on strategic account management, process management, and cross-functional collaboration to deliver measurable business outcomes.

Requirements

• 7+ years of progressive experience in Client/Customer Success, Account Management, or Consulting roles, with at least 4+ years focused on enterprise-level customers (typically $1M+ ARR or equivalent).
• Bachelor's degree in Business, Finance, Accounting, Engineering, or related field (MBA or advanced degree is a plus).
• Proven track record of managing large, complex accounts in B2B environments (SaaS, technology platforms, energy/tech, utilities, or professional services preferred).
• Strong business process expertise — experience mapping, analyzing, and optimizing operational workflows including software development requirements.
• Solid understanding of accounting principles (GAAP/IFRS), financial operations, and how technology impacts financial processes and reporting.
• Data-driven mindset with strong analytical abilities; comfortable using CRM/CS tools (e.g., Salesforce, Gainsight, Tableau) to track health scores, usage, and ROI metrics.

Nice To Haves

• Familiarity with Distributed Energy Resources (DER), including solar, battery storage, demand response, virtual power plants, grid integration, or energy management systems.
• Demonstrated experience in service delivery management, including project management, SLA adherence, resource coordination, and issue escalation/resolution.
• Exceptional relationship-building, executive communication, presentation, and negotiation skills.
• Experience working in the energy, utilities, cleantech, or renewable energy sectors.
• Project management certification (PMP, Agile, etc.) or Six Sigma/Lean experience.
• Prior experience in SaaS or subscription-based business models.

Responsibilities

• Serve as the primary trusted advisor and point of contact for a portfolio of high-value enterprise accounts, building and maintaining strong C-level and key stakeholder relationships.
• Drive customer success by deeply understanding each client's business objectives, operational processes, financial goals, and industry challenges, then aligning our solutions to deliver measurable ROI.
• Optimize and document client business processes, identifying improvement opportunities, recommending best practices, and collaborating on process redesign where applicable.
• Apply strong knowledge of accounting principles (e.g., revenue recognition, cost allocation, financial reporting, accruals) to support clients in financial modeling, billing accuracy, compliance, and value realization discussions.
• Manage end-to-end service delivery, coordinating internal teams (Professional Services, Support, Product, Finance) to meet SLAs, resolve escalated issues, and proactively mitigate risks.
• Conduct regular Executive Business Reviews (EBRs), QBRs, and strategic planning sessions to review performance metrics, showcase value delivered, identify expansion opportunities, and align on future roadmaps.
• Monitor account health using leading indicators; proactively identify at-risk accounts and develop retention strategies to minimize churn.
• Identify and pursue upsell/cross-sell opportunities in collaboration with Sales and Account teams, contributing to revenue growth targets.
• Serve as the voice of the customer internally, providing actionable feedback to Product, Engineering, and Leadership teams to influence roadmap priorities
• Other duties as assigned.

Benefits

• employees receive a comprehensive benefits package, such as health insurance, retirement plans, and paid time off, and may be eligible for performance incentives, bonuses, commissions, or equity, depending on the role.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Number of Employees: 501-1,000 employees