BESS & Solar Customer Success Engineer

3E; Brussel Hoofdstad; Hybrid; EUR 65,000 - 90,000; Full time

Benefits offered by this job

Home working (2 days/week)

Hospitalisation insurance

Pension saving

Representation allowance

€9 meal voucher/day

Flexible income plan

20 legal days off + 12 compensation/yr

Bike allowance

Job summary

3E is seeking a Customer Success Engineer to manage end-to-end customer journeys for BESS and solar portfolios using SynaptiQ. You will lead onboarding, nurture mature accounts, and proactively detect issues to improve platform performance and customer value.

The role requires a Master’s in Engineering, 2+ years in a customer-facing role, and strong knowledge of BESS and solar PV. English proficiency is essential, with Dutch or French as a bonus; EU work authorization is required.

Qualifications

• Master's degree in Engineering or a related field.
• Minimum 2 years of experience in a customer-facing role.
• Technical knowledge of battery energy storage systems (BESS) and data metrics.
• Proven understanding of solar PV; experience with hybrid PV + storage is a strong plus.
• Strong analytical skills focused on KPIs and customer metrics.
• Full professional proficiency in English; Dutch or French is a bonus.
• Commercial mindset with hands-on and strategic project experience.
• EU work authorization without visa sponsorship.

Responsibilities

• Onboard and manage 1–3 onboarding projects for BESS, hybrid, and PV assets.
• Manage 5–15 mature customer accounts across BESS, hybrid and PV portfolios.
• Monitor KPIs and value delivery, identify upsell/cross-sell opportunities.
• Collaborate with CS, Presales, Support, Product and Development to improve SynaptiQ.
• Run training sessions and webinars; develop guides and materials.
• Capture customer insights and feed into product roadmap.

Skills

BESS knowledge

Solar PV

Customer success

CRM tools

English proficiency

Analytical skills

Commercial mindset

Problem solving

Education

Master's degree in Engineering or related field

Tools

Salesforce

HubSpot

Gainsight

Job description

3E is seeking a Customer Success Engineer to manage end-to-end customer journeys for BESS and solar portfolios using SynaptiQ. You will lead onboarding, nurture mature accounts, and proactively detect issues to improve platform performance and customer value.

The role requires a Master’s in Engineering, 2+ years in a customer-facing role, and strong knowledge of BESS and solar PV. English proficiency is essential, with Dutch or French as a bonus; EU work authorization is required.