Skip to content
CV Rocket
Get started
How it worksThe enginePricingBlogContactSign in

Open nowPosted 21 hours ago

Customer Success Engineer - BESS & Solar

3E16 open roles

Where
Brussels, Belgium
Get the CV for this job

From $25 per CV, paid once. No subscription.

Your applicationOpen nowCustomer Success Engineer - BESS & Solar3E · Brussels, Belgium

  1. YouYes, apply to this one.

  2. CV RocketCV written for this posting.

  3. 25 readersRecruiter, hiring manager, skeptic. Round after round.

  4. CV RocketApplied on 3E's own form.

The reply lands in your private mailbox

3×more interviews than doing it yourself with ChatGPT.

The clock on this job

Early applications get read.

12.3% of postings close within 7 days. Measured by our own scanner across the market. 3E postings stay open a median of 11 days.

Share of postings closed within
  1. 2.1%1 day
  2. 4.5%3 days
  3. 12.3%7 days
  4. 19.3%14 days
  5. 35.6%30 days
  6. 58.1%60 days
This job: posted 21 hours ago

3E median: 11 days open

The posting

As a Customer Success Engineer, you will manage the end-to-end customer journey for owners, operators and asset managers of battery energy storage (BESS) and solar PV portfolios using SynaptiQ. Your main focus will be BESS and hybrid (PV + storage) assets, and you will also support customers with solar portfolios. You will lead the onboarding of new clients and manage the ongoing success of mature accounts. The role requires proactive account management, early issue detection and a continuous contribution to improving our platform and services.

Key Responsibilities:

1. Account Management:

  • Manage 5 to 15 mature customer accounts at the same time across BESS, hybrid and PV portfolios. Monitor their KPIs and regularly assess the value they get from SynaptiQ.
  • Build and maintain long-term relationships with customers, making sure our services support their operational and commercial goals.
  • Identify upsell and cross-sell opportunities, in particular extending PV customers into storage and hybrid monitoring as their portfolios grow.
  • Define and report on success metrics for each account, including customer satisfaction, retention and expansion revenue.

2. Issue and Opportunity Detection:

  • Monitor the health of the customer base, with particular attention to storage performance, degradation and data quality, alongside PV performance trends.
  • Address potential issues early and turn insights into opportunities for deeper engagement.

3. Client Onboarding:

  • Manage 1 to 3 onboarding projects at a time, mainly BESS and hybrid, as well as PV. Adapt the process to each client’s assets, data sources and operating model.
  • Ensure a smooth integration of storage, solar and hybrid assets into SynaptiQ, with correct data mapping, validation and KPI setup (e.g. availability, round-trip efficiency, state of health and cycling for BESS; performance ratio and energy yield for PV).
  • Guide new clients through to becoming mature, self-sufficient users of the platform.

4. Training and Webinars:

  • Run training sessions and webinars so clients can use SynaptiQ confidently for both BESS and PV operations and performance analysis.
  • Create user guides and training materials tailored to storage, solar and hybrid use cases.
  • Support customer advocacy through case studies, testimonials and reference calls that show the value of SynaptiQ.

5. Collaboration and Continuous Improvement:

  • Work closely with the Customer Success team and with Presales, Support, Product and Development.
  • Feed customer insights, especially from BESS and hybrid users, back into the product roadmap and help shape SynaptiQ’s storage capabilities.

Requirements

To fill this role, we are looking for someone with strong interpersonal skills including empathy, patience, good listening and the ability to stay calm under pressure. Our ideal candidate comes with a proven track record of managing customer relationships and delivering customer success and good understanding of solar PV plants and their performance monitoring.

We are looking for someone with:

  • a Master's degree in Engineering, or a related field.
  • minimum 2 years of experience in a customer-facing role, ideally in a high-growth environment.
  • technical knowledge of battery energy storage systems: BESS architecture, BMS/PCS/EMS data, and key performance and degradation metrics.
  • proven understanding of solar PV; experience with hybrid PV + storage sites is a strong plus.
  • strong analytical skills with a focus on KPIs, operational data and customer metrics.
  • full professional proficiency in English; Dutch or French is a bonus.
  • a commercial mindset, combined with the ability to handle both hands-on work and strategic projects.
  • a proactive, results-driven attitude and a strong drive to get things done.
  • legal authorization to work in the EU without visa sponsorship.
  • experience with CRM or customer success tools such as Salesforce, HubSpot or Gainsight.

Benefits

Our offices are hidden in the centre of Brussels with a view on a pond, with ducks and a heron bringing a regular visit. In addition to a stimulating atmosphere in a highly motivated group of people, 3E offers a unique opportunity to further develop yourself in a company/team with an ambitious growth plan, delivering innovative services.

Furthermore:

  • Training on the job by our experts so you get to know our solution and work in and out
  • Flexibility, responsibility and freedom in your day-to-day work.
  • An international environment with projects in over 100 countries worldwide, colleagues of over 20 nationalities.

The benefits for a contract on our Belgian payroll:

  • 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).
From $25, paid onceGet the CV for this job

What happens when you press

One press. We do the rest.

  1. A CV for this posting

    Written against 3E's own wording, from every piece of relevant proof in your profile.

  2. 25 readers review it

    Recruiter, hiring manager, skeptic and more read every draft, round after round. You get the best round.

    The review screen in CV Rocket: how each CV was read, round by round.

  3. We apply on 3E's form

    Our application engine gets through the hardest forms there are. Where a question needs you, AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

    An application in CV Rocket: every answer filled in on the employer's form.

  4. Every reply, sorted

    3E's answer lands in your private mailbox, and we classify it on arrival: interview, question, rejection.

    The CV Rocket inbox: each employer reply classified as an interview, an action or a rejection.

  5. Reply with AI

    AI helps you write the email, checks it and sends it. We show you whether the recruiter read it.

  6. The interview in your calendar

    Full integration with your calendar. The invitation goes straight in.

    An interview invitation in the CV Rocket inbox, added to the candidate's calendar.
Get the CV for this job

From $25 per CV, paid once. No subscription.

Why it works

3×

more interviews than doing it yourself with ChatGPT.

ChatGPT writes a CV and never learns what happened to it. We see every reply. For each CV we know:

  • How it was written, and how the review scored it
  • When we applied, and how long after the posting went up
  • Which posting, which company, which city
  • Who got the interview, and who heard nothing

That is how we know which CVs get called.

Get the CV for this job

From $25 per CV, paid once. No subscription.

The numbers game

More applications. More interviews.

Every application goes out with its own CV, written for that posting and paid once. Send enough of them and the law of large numbers finds you the job.

Get the CV for this job
By hand5–10
With CV Rocket100
applications a day

Nearby

Live postings like this one

Same employer first, then the same role elsewhere.

Before you press

Straight answers

Get the CV for this job

From $25 per CV, paid once. No subscription.

What if my background isn't good enough?

We make the most of the background you have. The CV uses every piece of relevant proof your profile holds, and one of the 25 readers reads your whole profile and flags what the CV left out.

Do you really apply for me?

Yes, on the employer's own form, the hardest ones included. Where a question needs you, you answer it right there and AI suggests the best answer. Don't want us applying from our IP addresses? Use our Chrome extension: we apply straight from your own browser.

Is it a subscription?

No. You pay once per CV, from $25. Every application goes out with its own CV, written for that posting.

One job. One CV.
Paid once.

Pick the posting you want. We write for it, apply for you and catch the reply.

Get the CV for this job

From $25 per CV, paid once. No subscription.