Customized Energy Solutions (CES) is a leading provider of software, consulting, and managed services that help companies succeed in the dynamic deregulated energy markets. CES has combined deep market expertise with advanced technology to deliver timely insights, operational support, and asset management solutions. CES manages over 30,000 MW of renewable and conventional generation resources across all North American ISOs, Ontario, Canada, and Guam, while providing trusted market intelligence and operational support to energy companies worldwide. 

Headquartered in Philadelphia with offices across the U.S., Canada, Japan, India, and Vietnam, CES has been recognized for sustained growth and innovation, including multiple appearances on the INC. 5000 list and as one of the Philadelphia Business Journal’s Best Places to Work. As one of the region’s fastest-growing private companies, CES offers a dynamic, collaborative, and entrepreneurial environment with significant opportunities for professional development. 

At CES, we seek motivated, innovative, and mission-driven individuals who want to grow with us. If you’re excited about shaping the future of energy, join us in delivering solutions that make markets work better for our clients—and for the world. 

The Key Account Director is responsible for managing and growing relationships with CES’s most strategic clients. This individual will serve as a trusted advisor, ensuring high levels of client satisfaction while driving revenue through renewals, upselling, and business line expansion. The role requires a strong balance of relationship management, strategic account planning, and sales execution. 

Key Responsibilities 

• Serve as the primary relationship manager for assigned key accounts, building trusted, long-term partnerships. 
• Develop and execute strategic account plans to achieve revenue growth, retention, and expansion goals. 
• Drive renewals by proactively engaging accounts well ahead of contract expiration. 
• Identify opportunities to upsell CES’s existing solutions and expand adoption across business lines. 
• Collaborate with internal teams (operations, product, regulatory, and support) to ensure client satisfaction and deliver value. 
• Maintain deep knowledge of CES service offerings, energy markets, and client business objectives. 
• Track account health, engagement, and growth opportunities using CRM and reporting tools. 
• Act as clients advocate within CES, ensuring client needs and feedback inform business strategy. 
• Represent CES at industry events, conferences, and client meetings as a trusted partner. 

• Bachelor’s degree in Business, Energy, or related field; MBA a plus. 
• 8+ years of account management, business development, or client-facing sales experience (energy sector experience strongly preferred). 
• Proven track record of driving revenue growth through upselling, renewals, and cross-selling. 
• Exceptional relationship management and communication skills with C-level stakeholders. 
• Strong strategic thinking, problem-solving, and negotiation skills. 
• Ability to thrive in a dynamic, fast-paced environment with multiple stakeholders. 
• Proficiency with CRM systems (Salesforce experience plus). 

At Customized Energy Solutions, we offer a competitive salary based on experience, along with performance-based bonuses, health coverage, and tuition reimbursement to support your growth.

We look for colleagues who can work independently, collaborate effectively, and embrace continuous learning and knowledge-sharing. Together, we foster a supportive environment where teams grow, innovate, and build sustainable solutions for the future.

Customized Energy Solutions provides equal employment opportunities to all applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.