Pre-sales Engineer (Danang, Remote)

CÔNG TY TNHH PERSOLKELLY VIỆT NAMThanh Khê, Đà Nẵngglintsavaldatud 28.09.2026
Remote

Key Responsibilities

Technical Pre-Sales

  • Provide technical support and consultation on PV inverters, ESS and C&I solar solutions.
  • Analyze customer requirements and recommend suitable Deye products and system configurations.
  • Prepare technical proposals, system designs, layouts, specifications and technical reports.
  • Support customers and EPC partners with system sizing, inverter selection, ESS configuration and solution design.
  • Conduct technical presentations, product demonstrations and customer consultations.
  • Support project bidding, tender submissions and proposal preparation.
  • Ensure proposed solutions comply with applicable Vietnamese electrical codes, regulations and safety standards.

Business Development & Sales

  • Identify, qualify and develop potential C&I customers, EPC contractors, solar installers, developers and other industry partners.
  • Develop relationships with EPC companies and key industry stakeholders to generate new business opportunities.
  • Understand customer requirements, decision-making processes and purchasing criteria.
  • Support negotiations and commercial discussions to convert opportunities into sales contracts and C&I partner agreements.
  • Follow up on sales opportunities from initial enquiry through proposal, negotiation and contract closing.
  • Build and maintain long-term relationships with customers and strategic partners.

Market & Competitor Analysis

  • Conduct market research on Vietnam's solar PV and energy storage market.
  • Monitor market trends, customer requirements and regulatory developments.
  • Track competitor products, pricing, technical solutions and market activities.
  • Provide regular market and competitor feedback to management.

Job Requirements

Technical Skills

  • Bachelor's degree in Electrical Engineering, Energy Engineering, Renewable Energy or a related field.
  • Strong knowledge of solar PV systems, PV inverters and ESS.
  • Good understanding of inverter design principles, MPPT technology and power conversion efficiency.
  • Knowledge of C&I solar and energy storage applications.
  • Knowledge of relevant electrical codes, standards and safety requirements.
  • Ability to understand and use solar PV system design software.
  • Ability to recommend appropriate inverter and ESS solutions based on customer and project requirements.

Sales & Business Development Skills

  • Proven experience in technical sales, pre-sales engineering or B2B sales.
  • Experience in the solar PV, inverter, ESS or renewable energy industry is preferred.
  • Ability to identify and qualify potential customers and business opportunities.
  • Strong communication, presentation and negotiation skills.
  • Ability to explain technical concepts clearly to both technical and non-technical customers.
  • Strong relationship-building and customer management skills.
  • Self-motivated and able to work independently in a remote working environment.

Preferred / Advantageous

  • Experience working with EPC contractors, solar installers or developers in Vietnam.
  • Experience with C&I solar projects.
  • Knowledge of competing inverter and ESS brands.
  • Experience with solar monitoring and data analysis platforms.
  • Existing network of EPC contractors, installers or C&I customers in Hanoi, Da Nang or surrounding regions.
  • Good command of English is preferred.

Performance Expectations

  • The successful candidate is expected to:
  • Develop a strong pipeline of C&I opportunities.
  • Establish and maintain relationships with EPC and installer partners.
  • Generate qualified project opportunities.
  • Support successful technical proposals and project tenders.
  • Convert qualified opportunities into C&I partner agreements and sales.
  • Contribute to revenue growth for Deye's Vietnam C&I business.