[Hiring] Senior Client Success Manager @Ameresco

Role Description

Ameresco has an opening for an 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.

• 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.

Qualifications

• 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.

Requirements

• 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.

Benefits

• The anticipated base salary range for this role is $101,000–$161,500 (presented in good faith).
• Comprehensive benefits package, such as health insurance, retirement plans, and paid time off.
• Eligibility for performance incentives, bonuses, commissions, or equity, depending on the role.