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3E

Customer Success Engineer – BESS, Solar

3E

. Manage 5 to 15 mature customer accounts across BESS, hybrid and PV portfolios .

Posted 10/26/2026full-timeBrussels • BelgiumJuniorMid-LevelWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in managing customer accounts within battery energy storage systems (BESS), hybrid, and solar PV portfolios, focusing on customer success, relationship management, and performance analysis. Proficient in utilizing CRM tools and delivering training to enhance customer engagement and satisfaction.

Highest-signal resume keywords
Customer Relationship ManagementBattery Energy Storage Systems (BESS) KnowledgeSolar PV UnderstandingAnalytical Skills with KPIsExperience with CRM Tools

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
Battery Energy Storage Systems (BESS) ArchitectureBMS/PCS/EMS Data AnalysisPerformance Metrics MonitoringData Mapping and ValidationCustomer Success Metrics Reporting
Soft Skills
Proactive AttitudeResults-Driven MindsetStrong Communication Skills
Tools & Technologies
SalesforceHubSpotGainsight
Industry Keywords
Customer SuccessHybrid PV + Storage SitesCustomer AdvocacyOperational Data AnalysisTraining and Onboarding

About the role

Key responsibilities & impact
  • Manage 5 to 15 mature customer accounts across BESS, hybrid and PV portfolios
  • Monitor customer KPIs and assess the value customers get from SynaptiQ
  • Build and maintain long-term customer relationships aligned with operational and commercial goals
  • Identify upsell and cross-sell opportunities, especially extending PV customers into storage and hybrid monitoring
  • Define and report success metrics including customer satisfaction, retention and expansion revenue
  • Monitor storage performance, degradation, data quality and PV performance trends
  • Detect issues early and turn insights into deeper engagement opportunities
  • Manage 1 to 3 onboarding projects at a time across BESS, hybrid and PV assets
  • Integrate assets into SynaptiQ through data mapping, validation and KPI setup
  • Guide clients toward becoming mature, self-sufficient platform users
  • Run training sessions and webinars for BESS and PV operations and performance analysis
  • Create user guides and training materials for storage, solar and hybrid use cases
  • Support customer advocacy through case studies, testimonials and reference calls
  • Collaborate with Customer Success, Presales, Support, Product and Development
  • Feed customer insights into the product roadmap and help shape SynaptiQ’s storage capabilities

Requirements

What you’ll need
  • 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 architecture, BMS/PCS/EMS data, and key performance and degradation metrics
  • Proven understanding of solar PV
  • Strong analytical skills with a focus on KPIs, operational data and customer metrics
  • Full professional proficiency in English
  • Legal authorization to work in the EU without visa sponsorship
  • Experience with CRM or customer success tools such as Salesforce, HubSpot or Gainsight
  • Ability to manage customer relationships and deliver customer success
  • Commercial mindset and ability to handle hands-on work and strategic projects
  • Proactive, results-driven attitude and strong drive to get things done
  • Dutch or French is a bonus
  • Experience with hybrid PV + storage sites is a strong plus

Benefits

Comp & perks
  • Training on the job by our experts
  • Flexibility, responsibility and freedom in day-to-day work
  • International environment with projects in over 100 countries worldwide and colleagues of over 20 nationalities
  • Home working (2 days per week)
  • Hospitalisation insurance
  • Pension saving
  • Representation allowance
  • €9 meal voucher/day
  • Flexible income plan
  • 20 legal days off + 12 compensation days (per full year worked)
  • Sustainable transport subscription and/or bike allowance (€0.36/km)