TECHNICAL SALES ENGINEER

TECHNICAL SALES ENGINEER — SOLAR PV s BATTERY ENERGY STORAGE

Company: Arkion Technologies - Member of PT. Indoturbine Group

Department: Sales C Business Development

Reports to: Director

Location: Jakarta + Remote + Site Travel Employment Type: Full-time, Permanent Probation: [3/6] months

Level: Fresh Graduate to 2 years experience

Recruitment Process by: PT. Indoturbine

We are looking for an electrical engineering graduate who wants to build a career on the commercial side of the energy transition — not in a design office, but in front of customers.

You will be the technical brain behind our sales process: sizing and specifying PV and battery systems for customers, converting those designs into quotations and orders, and staying with the customer after delivery as their first point of contact for technical questions, product issues, and warranty claims. You will also be our working-level link to our battery and inverter principals.

Key Responsibilities

1.  Pre-Sales Engineering s Solution Design (core of the role)

·       Translate customer requirements — load profiles, site constraints, budget, backup duration — into a technically sound PV and/or BESS configuration.

·       Size PV arrays, inverters, and battery banks: string sizing, DC/AC ratio, autonomy and depth-of-discharge calculations, C-rate checks, cable and protection sizing.

·       Verify inverter–battery compatibility (communication protocol, voltage window, approved-battery lists) before anything is quoted.

·       Produce technical diagrams, layout sketches, and bills of materials to support proposals.

·       Prepare and present technical proposals to customers; answer technical objections during the sales cycle.

·       Support the sales team on customer visits, site surveys, and product demonstrations.

2.  Sales Administration s Order Processing

·       Prepare and issue sales quotations, and follow up until decision.

·       Process customer purchase orders; check specification, pricing, stock availability, and lead time before confirmation.

·       Coordinate with warehouse and logistics on delivery scheduling and shipping documents.

·       Issue and track invoices; support collection follow-up with Finance.

·       Maintain the sales pipeline, quotation log, and customer records in spreadsheet system.

3.  Customer Support s After-Sales (PIC)

·       Own the customer technical hotline as first point of contact for product and application questions.

·       Perform first-level troubleshooting on inverters, batteries, and BMS/communication issues; escalate what cannot be resolved.

·       Act as the PIC for customer claims: log the case, gather evidence (serial numbers, error logs, photos, site conditions), and drive it to closure.

·       Maintain a complaint and warranty register, and report recurring product issues to management with data.

4.  Principal s Supplier Liaison

·       Serve as the day-to-day technical contact with our battery and inverter manufacturers.

·       Submit and follow through on warranty and RMA claims with principals until resolution or replacement.

·       Track firmware releases, technical bulletins, product updates, and revised datasheets, and circulate what matters internally.

·       Coordinate technical training, certification, and product briefings from principals for our team and our customers.

Requirements Education

·       Bachelor's degree (S1) in Electrical Engineering, or a closely related engineering discipline. Power systems, power electronics, or energy conversion focus is an advantage.

Experience

·       Fresh graduates are encouraged to apply. Up to ~2 years of experience in solar PV, energy storage, electrical equipment distribution, or technical sales is a plus.

·       Final-year projects, internships, or student-organisation work in solar PV or battery systems will be considered relevant experience.

Technical knowledge

·       Solid grounding in electrical fundamentals: DC/AC systems, power quality, protection, cable sizing, earthing.

·       Working understanding of PV system components (modules, inverters, MPPT, combiner boxes) and battery technology (Li-ion chemistries, BMS, cycle life, DoD, C-rate). Depth here can be trained — genuine curiosity cannot.

·       Comfortable reading datasheets, single-line diagrams, and installation manuals.

Tools

·       Strong Excel/Google Sheets (this role lives in spreadsheets).

·       AutoCAD or equivalent for basic drawings.

·       Exposure to PVsyst, Helioscope, or similar simulation tools is an advantage, not a requirement.

·       AI Tools: Comfortable using AI tools and eager to leverage them to build internal solutions. Familiarity with agentic tools such as Claude Code is an advantage. Must be proactive in using AI to improve processes, CRM, and team productivity.

Language s other

·       Fluent [Bahasa Indonesia]; professional working English (most principal documentation and correspondence is in English); Mandarin fluency is a plus.

·       Willing to travel to customer and project sites as needed.

·       [Driving license / SIM A, if required.]

Who Will Succeed Here

·       Genuinely wants to be in sales. The strongest signal we are looking for is an engineer who enjoys customers, negotiation, and commercial outcomes — not one who sees sales as a fallback.

·       Comfortable with administrative detail. A wrong part number on a PO becomes a wrong delivery, an unhappy customer, and a margin hit. Precision matters as much as technical depth.

·       Ownership mindset. When a customer calls with a failed unit, you drive it to resolution rather than passing it along.

·       Clear communicator. Can explain a DC/AC ratio to a procurement manager without an engineering background.

·       Fast learner. Our product range and the technology behind it change every year.