Senior Technical Engineer

One Stop Warehouse Pty Ltd; Naga; On-site; PHP 900,000 - 1,500,000; Full time

Job summary

OSW Group in the Philippines seeks a Senior Electrical Engineer with 5+ years in Solar PV to lead the technical team and design On-Grid, Hybrid, and BESS solutions. You will prepare proposals, perform energy yield analyses, and coordinate with sales and project teams.

Great opportunity to influence product design, ensure regulatory compliance, and support market development in a fast-growing energy tech group.

Qualifications

• Bachelor’s degree in Electrical Engineering or related field with REE license.
• 5+ years of experience in the Solar PV industry, preferably with pre-sales and technical sales.
• Strong knowledge in PV system design, sizing, analysis, and technical evaluation.
• Proficient in preparing technical proposals, system designs, BOMs, energy yield analysis, and costing.
• Understanding of On-Grid, Hybrid, and Battery Energy Storage Systems (BESS).
• Leadership, communication, presentation, and team management skills; guide sales and project teams.

Responsibilities

• Lead the technical team in the Philippines and guide sales and project teams on technical matters.
• Review designs and proposals before sending to customers; set priorities for design and support tasks.
• Assess customer needs and design On-Grid, Hybrid and BESS solutions for projects.
• Prepare technical proposals, BOMs, energy yield analyses and project costing.
• Ensure designs meet local codes and assist with permits and net-metering applications.
• Handle technical escalations, diagnose faults remotely or on site, and coordinate repairs.
• Test and evaluate new products; monitor market trends in the Philippines.

Skills

PV system design

Pre-sales support

Technical leadership

Electrical engineering

Customer requirements translation

Education

Bachelor’s Degree in Electrical Engineering

REE license

Tools

PV design software

BOM preparation

Energy yield analysis tools

Costing tools

CRM software

Job description

OSW Group is a fast growing global ecosystem of businesses united by a shared vision to accelerate the world's transition to smarter, more sustainable energy and technology solutions. Our portfolio includes One Stop Warehouse (OSW), GreenSketch, GreenDeal, Manta and Sunmine, combining expertise across renewable energy, AI-powered software, energy finance and digital infrastructure to drive innovation on a global scale.

With operations across Australia, Singapore, China, Europe, the United States and Mexico—and continuing to expand into new markets—we're creating opportunities for ambitious people to build meaningful, international careers. While each of our businesses has its own unique focus, we're connected by a collaborative culture, entrepreneurial mindset and a passion for challenging what's possible.

When you join OSW Group, you're joining more than a company—you're becoming part of a global team that's shaping the future of clean energy and technology. We invest in our people, encourage fresh ideas, celebrate success and provide the opportunity to grow alongside a business that's only just getting started.

Qualifications

• Bachelor’s Degree in Electrical Engineering or related field; REE license
• At least 5 years of experience in the Solar PV industry, preferably with experience in pre-sales and technical sales.
• Strong knowledge and experience in PV system design, sizing, analysis, and technical evaluation.
• Proficient in preparing technical proposals, system designs, BOMs, energy yield analysis, and project costing.
• Good understanding of On-Grid, Hybrid, and Battery Energy Storage Systems (BESS).
• Strong leadership, communication, presentation, and team management skills. -Ability to lead technical teams and provide technical guidance to sales and project teams.
• Strong problem-solving skills with the ability to translate customer requirements into practical and technically sound solar solutions.

Key Duties and Responsibilities

Technical Leadership: Lead the technical team in the Philippines and guide the sales and project teams on technical matters.

• Assign and review the work of the technical team, and set priorities for design and support tasks.
• Act as the final technical reviewer of designs and proposals before they are sent to customers.

Pre-Sales and Solution Design: Assess customer needs and design On-Grid, Hybrid and BESS solutions for residential and C&I projects.

• Conduct site surveys, load analysis and electricity bill reviews to determine the right system size.
• Join sales meetings and customer presentations to explain the proposed solution.

Technical Proposals and Costing: Prepare technical proposals, BOMs, energy yield analysis and project costing using the OSW product range.

• Prepare single-line diagrams, panel layouts and equipment specifications.
• Work with the sales and accounting team to align pricing, margins and payment terms.

Standards and Compliance: Ensure designs and products meet local codes and regulations, and support permit and net‑metering applications.

• Keep up to date with changes to the PEC, DOE and ERC rules and distribution utility requirements.
• Prepare the technical documents needed for permits and net‑metering applications.

After-Sales and Technical Escalations: Handle technical escalations, troubleshooting and warranty claims.

• Diagnose system faults remotely or on site, and coordinate repairs with partners and installers.
• Liaise with manufacturers on warranty claims and follow them through to closure.

Product Evaluation and Market Development: Evaluate new products and support OSW’s growth in the Philippines.

• Test and assess new products, and share feedback with the OSW product team.
• Monitor competitor products, pricing and market trends in the Philippines.

Training and Capability Building: Train the sales team, partners and customers, and build the local team’s technical skills.

• Conduct product and installation training for partners, installers and the sales team.
• Prepare training materials, installation guides and FAQs.

Processes, Records and Systems: Maintain technical processes and records, including the CRM, in line with OSW standards.

• Keep design files, datasheets and project documents organised and easy to access.
• Update the CRM with technical inputs on leads, opportunities and support cases.

Collaboration and Reporting: Work with the Country Manager and OSW teams, and report on technical matters and project status.

• Submit regular reports on technical activities, project status and open issues to the Country Manager.
• Coordinate with OSW regional and head office teams on product and technical matters.

Other Duties: Perform other related duties as may be assigned by the Country Manager.