BESS Solution Engineer & Sales Support

Title: BESS Behind the meter Project manager

Location: Paris – La Garenne Colombe

Overview

ENGIE is expanding its operations to include the design, procurement and installation of Battery Energy Storage Systems (BESS) as a key driver of flexibility behind the meter. The role is accountable for the technical integrity and Health & Safety requirements of behind‑the‑meter BESS projects and supports Sales teams on pre‑sales activities such as technical qualification, solution design and partner alignment.

Responsibilities

• Own the technical design of behind‑the‑meter BESS projects (architecture, technology selection and key interfaces such as EMS, inverter, protection, HVAC, fire safety, civil works and grid connection).
• Define and maintain technical standards, specifications and best practices for decentralized BESS deployments (templates, checklists and lessons learned).
• Ensure compliance with ENGIE and local Health & Safety requirements across design, installation and commissioning, including contractor H&S management and site readiness.
• Audit partners and installations to verify compliance with ENGIE requirements; define corrective actions and follow‑up plans.
• Support Sales in opportunity qualification by providing technical inputs (site constraints, sizing hypotheses, risks, CAPEX/OPEX drivers, schedule and constructability).
• Contribute to tenders/RFPs and customer‑facing technical discussions (technical notes, assumptions, clarifications, technical due diligence packages).
• Align with Sales, Risk Management and Trading on technical assumptions impacting value (availability, operating constraints, warranty limits, performance guarantees).
• Coordinate with EPC contractors and technology partners during procurement, installation and commissioning by reviewing key documents (design packages, method statements, H&S plans, FAT/SAT, commissioning procedures) and managing technical deviations.

Qualifications

• Deep technical knowledge of battery systems (BESS) and associated energy assets, including key constraints (safety, performance, warranty, degradation).
• Solid engineering expertise in industrial projects and EPC contracts; ability to challenge suppliers and contractors on design choices and execution readiness.
• Strong understanding of Health & Safety requirements for industrial installations and contractor management (risk assessment, method statements, permit‑to‑work principles).
• Customer‑facing mindset and ability to support Sales on pre‑sales deliverables (technical qualification, RFP responses, technical clarifications), translating complex topics into clear messages.
• Interest in progressively broadening exposure to commercial and offer‑related topics (value drivers, contracting principles), while remaining primarily accountable for technical and H&S matters.
• Ability to work in a multi‑partner environment and manage complex technical interfaces across countries.
• Engineering degree or equivalent technical qualification.
• 8–15 years of experience in energy, industrial or infrastructure projects.
• Experience covering the full asset lifecycle (development → construction → operation) is a strong asset.

Scope and Travel

European scope (initial focus on France, UK, Belgium, Germany and the Netherlands). Occasional travel required across these regions.

Diversity & Inclusion

At ENGIE S&EM, we are committed to fostering a gender‑neutral and inclusive environment where everyone’s potential can thrive.

All our positions are open to people with disabilities. If you need reasonable accommodations during the recruitment process, please inform your recruiter – we will be happy to support you.