Backend developer • lausanne
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Mission
Voltiris develops solar energy solutions for agriculture, enabling the dual use of land for food production and clean energy. Recently ranked as the 4th top startup in Switzerland, we are scaling our project portfolio across Switzerland, France, and the Netherlands.
Role Overview
As Senior Project Developer, you will independently own behind-the-meter solar (PV + BESS) projects from early-stage assessment through commissioning, with a strong focus on technical planning. You will work closely with sales, engineering, and external stakeholders to ensure projects are technically and economically sound.
Key Responsibilities
Own solar PV and BESS projects from pre-feasibility through commissioning, with minimal supervision
Drive internal electrical planning knowledge (AC PV, BESS, Low-/Medium-Voltage grid connection)
Lead grid connection applications, BESS permitting, and utility coordination
Provide quote-backed cost estimates and technical inputs for offers and financial models
Coordinate internal and external stakeholders (client, electrician, suppliers, utilities, partners)
Lead and challenge technical and economic feasibility studies
Act as technical sounding board and mentor for the team
Set up and own project development processes and standards (stage gates, handovers) as we scale
Skills & Qualifications
Master’s Degree in Electrical Engineering or equivalent hands-on experience (grid connection, PV systems, electrical design) – required
5+ years in renewable energy project development, with PV and/or BESS projects taken through construction incl. strong technical ownership
Deep practical knowledge of how projects are built and what they cost
Strong technical and financial understanding of renewable energy projects
Proven end-to-end ownership of complex, multi-stakeholder projects
Proficiency in English (required); Fluent German or Dutch (required); French (a plus). Experience with CAD (2D & 3D) or scripting (e.g. Python) is an advantage
What We Offer
Senior ownership and autonomy from day one
Exposure to projects across Switzerland and Europe
Competitive salary and benefits
Fast-moving, entrepreneurial team environment
Please click on the application link to apply for this position.
