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T.C.C. Technology

Assistant Business Development Manager (Energy Solutions / Solar)

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This position is no longer accepting applications(closed Oct 17, 2026).

We are looking for an Assistant Business Development Manager to drive business growth and develop energy-saving solutions for customers in the Manufacturing Technology (Manu Tech) and Property Technology (Prop Tech) sectors.

The successful candidate will be responsible for identifying business opportunities, building a strong sales pipeline, understanding customer requirements, developing customized solutions and proposals, and managing the sales process through project closing.

Our solutions include solar energy, energy-saving systems, operation management solutions, building management services, digital platforms, analytics, and monitoring systems.

Key Responsibilities

  • Develop new business opportunities within the Manufacturing, Industrial, Property, and Building Management sectors

  • Manage and expand relationships with existing customers while continuously building a new sales pipeline

  • Identify customer requirements, operational challenges, and energy-saving opportunities

  • Work with internal technical and engineering teams to design appropriate solutions based on customer needs

  • Prepare business proposals, solution presentations, project scopes, and commercial quotations

  • Present solutions related to:

    • Solar energy systems

    • Energy-saving and energy-efficiency solutions

    • Building operation and management services

    • Digital platforms and monitoring systems

    • Data analytics and performance monitoring

    • Customized solutions based on customer requirements

  • Manage the end-to-end sales process, from lead generation and customer engagement to proposal development, negotiation, and project closing

  • Conduct market analysis and identify new target customers or business opportunities

  • Coordinate with internal teams, partners, vendors, and customers to ensure successful project development

  • Visit customer sites, including locations outside Bangkok and in other provinces

  • Maintain accurate sales forecasts, pipeline reports, and customer activity records

Qualifications

  • Bachelor’s degree or higher in Engineering, Energy Management, Business Administration, Marketing, or a related field

  • At least 3–5 years of experience in Business Development, B2B Sales, Solution Sales, Project Sales, or a related role

  • Experience working with customers in the Manufacturing, Industrial, Property, Real Estate, Energy, or Building Management sectors is preferred

  • Experience in a System Integrator (SI), energy solution, solar, smart building, automation, IoT, or technology solution business will be an advantage

  • Able to understand customer requirements and translate them into business or technical solutions

  • Experience preparing proposals, presentations, quotations, or project business cases

  • Strong communication, presentation, negotiation, and relationship management skills

  • Proactive, target-oriented, and comfortable working in a project-based sales environment

  • Able to work independently, coordinate with cross-functional teams, and manage multiple opportunities simultaneously

  • Must be able and willing to travel to customer sites in other provinces as required

  • Having a valid driving license and access to a personal vehicle will be an advantage

  • Good command of English is an advantage


Skills

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