We are looking for a motivated and detail-oriented Project Design Engineer to join our Engineering team. In this role, you will assist in creating technical designs, layouts, and simulations for Commercial & Industrial (C&I) solar rooftop projects. This is an excellent opportunity to gain hands-on, real-world experience in the fast-growing renewable energy sector. **Responsibilities:** **Design & Engineering** - Conduct site surveys and collect technical information required for solar PV and Battery Energy Storage System (BESS) design. - Design rooftop solar PV and energy storage systems in accordance with applicable Vietnamese regulations, EVN requirements, TCVN standards, IEC standards, and company engineering standards. - Prepare preliminary layouts, single-line diagrams (SLD), detailed engineering drawings, cable routing, equipment layouts, and construction drawings using AutoCAD and other engineering software. - Perform PV system simulations using PVsyst and prepare technical feasibility studies, energy yield analysis, and performance calculations. - Prepare equipment sizing, Bill of Quantity (BOQ), and technical specifications. - Review and optimize engineering designs to improve system performance, constructability, safety, and cost effectiveness **Project Coordination** - Coordinate closely with the HQ Design team throughout design development, review, and approval processes. - Support the Business Development team by preparing preliminary designs, technical proposals, and customer presentations. - Coordinate with Project Engineers during project execution to resolve engineering issues and provide timely design revisions. - Review subcontractor drawings and ensure compliance with project specifications and engineering standards. - Prepare tender drawings, shop drawings, construction drawings, and as-built drawings. **Quality & Documentation** - Ensure CAD standards, document control procedures, and drawing revision processes are consistently followed. - Support engineering documentation required for customer submissions, authority approvals, and project handover. - Ensure engineering deliverables are completed accurately and within project schedules. - Bachelor's Degree in Electrical Engineering or equivalent. - Minimum 1–3 years of experience in Solar PV design (C&I rooftop experience preferred). - Experience in EPC project design and engineering coordination is highly preferred. - Good understanding of Vietnamese electrical regulations, TCVN, IEC standards, and EVN interconnection requirements. - Proficient in AutoCAD. - Proficient in PVsyst. - Familiar with SketchUp, Helioscope, or equivalent engineering software is an advantage. - Experience preparing BOQ, technical specifications, and engineering documentation. - Ability to independently perform site surveys and prepare preliminary designs. - Strong analytical, problem-solving, and communication skills. - Able to work independently while coordinating effectively with cross-functional teams and HQ. - Good command of written and spoken English is an advantage.