Flexcity

Product Marketing Manager F/H/X

Join Flexcity in Auderghem as a Product Marketing Manager. Shape product messaging, lead go-to-market campaigns, and support sales across Europe. Benefit from working in a fast-growing energy tech leader with a collaborative culture and impactful projects.
Flexcity
Flexcity
Auderghem, Belgium On-site Full time UTC+01:00

Flexcity

Company Overview

Flexcity, a subsidiary of Veolia

Brussels, Belgium

2012

Approximately 100 employees (source: linkedin.com). Revenue figures are not specified, but Veolia reported consolidated sales of €45.3 billion in 2023 (source: veolia.com).

What They Do

Flexcity specializes in aggregating electrical flexibility, optimizing demand response and short-term electricity markets through smart grid solutions. This includes the use of batteries, renewable energy sources such as distributed generation and wind power, as well as industrial processes like electrolyzers and electric boilers (power-to-heat). Flexcity does not focus directly on hydrogen or large-scale solar/wind energy development (source: flexcity.energy). Their main products and services include a proprietary platform for connecting, operating, and optimizing assets in markets such as intraday, day-ahead, and secondary reserve services (source: flexcity.energy). Target markets include balancing services and ancillary services in Europe, with clients in various sectors such as water treatment, waste recovery, and battery energy storage systems (BESS) (source: flexcity.energy). Flexcity has distinguished itself as a market leader since 2012, managing over 3 GW of flexible power, equivalent to that of a nuclear power plant, and was the first to innovate in aFRR aggregation in Belgium (source: flexcity.energy).

Projects and Background

Flexcity has completed several notable projects, including its integration into TenneT's aFRR market in the Netherlands in 2023 via Equigy's Crowd Balancing platform, which aggregates batteries and industrial processes for grid balancing (source: equigy.com). In France, the valorization of hundreds of Veolia Water's storage/inertia sites has been implemented over several years, along with the use of Orange's backup batteries since 2017 for demand response (source: flexcity.energy). In Belgium, projects such as the participation of the Aquiris wastewater treatment plant and the Beneo Orafti food site in aFRR have been completed (source: flexcity.energy). Ongoing projects include a BESS optimization in the Netherlands scheduled for January 2025 and the integration of the secondary reserve from Veolia's Lapouyade waste site in France (source: flexcity.energy).

Recent Developments

Over the past two years, Flexcity has announced several partnerships, including a collaboration with enspired for BESS optimization in the Dutch and Belgian markets, with initial contracts secured (source: flexcity.energy). The integration of the secondary reserve from the Lapouyade site in France is also planned for January 2025, marking a first for a waste storage site (source: veolia.com). In 2023, Flexcity successfully prequalified for TenneT's aFRR market in record time, demonstrating its agility and efficiency (source: equigy.com). No major acquisitions or external funding have been reported, with growth primarily driven by integration within Veolia since 2019 (source: flexcity.energy).

Working at Flexcity

Flexcity offers positions in product management, R&D, portfolio management, IT/data engineering, sales, and operations, with strong inter-team collaboration. Roles include positions such as Product Manager - Energy Flexibility Markets, focused on developing the platform for asset valorization (source: welcometothejungle.com). Recruitment is active at the Brussels headquarters (Saint-Gilles) for technical and product roles, with no specified remote work options (source: linkedin.com). The company culture emphasizes the agility of a startup with the support of Veolia, innovation at the core of operations, and transparency in processes (source: flexcity.energy). While specific benefits are not detailed, roles highlight impactful work in the energy transition, with potential benefits related to Veolia's ecological transformation initiatives (source: welcometothejungle.com).


Last updated on Feb 23, 2026 | Report an issue

Are you passionate about bridging the gap between product and market with a desire to create impactful solutions?

Flexcity, an independent subsidiary of the Veolia Group and a European leader in energy technologies, is seeking a Product Marketing Manager F/H/X for its Brussels office.

We support over 150 clients in their energy transition by optimizing their assets (including BESS, RES, electrolyzers, and eBoilers..). Our proprietary platform currently manages 3GW of flexibility across 6 countries.

Job Description

As a Product Marketing Manager F/H/X for Flexcity, you will report directly to the Head of Growth.

You will be responsible for shaping product positioning, messaging, and go-to-market execution by translating market and customer insight into compelling narratives, and support the Sales with clear, compelling collateral that helps them succeed.

  • Positioning & messaging (40%):
    • Develop and refine product value propositions, personas, and messaging frameworks that clearly articulate customer outcomes, value, and differentiation for our products.
  • Go-to-market and Sales enablement (30%):
    • Plan and execute campaigns and launches with growth marketing across our 6 countries and products
    • Create sales collateral such as pitch decks, one-pagers, case studies, battlecards.... And work closely with sales to enable them.
  • Customers & competitive insight (30%):
    • Gain and maintain a deep understanding of target markets, competitor landscape and customer segments to ensure messaging is relevant, compelling, and insight-driven.
    • Build and maintain a structured competitive intelligence process that informs positioning and sales narrative

Qualifications

Experience & Hard Skills

  • Minimum 3 years of hands-on experience in B2B product marketing, ideally for software, data, or analytics products
  • Strong expertise in strategic market research, persona development, segmentation, and positioning frameworks
  • Experience in go-to-market execution: product launches, sales enablement, GTM campaigns
  • Excellent messaging and content development skills
  • Experience in the energy sector is a strong plus

Personal & Soft Skills

  • Excellent storytelling, communication, and writing skills
  • Strategic thinker with strong prioritization abilities
  • Effective cross-functional collaboration and stakeholder management
  • Ability to operate autonomously in a fast-scaling environment

Additional Information

Interview Process:

  • HR interview / Talent acquisition (45 mins, video call): presentation of your professional background, presentation of the recruitment context, discussion regarding your motivations;
  • Interview with the Head of Growth (60 mins, video call): in-depth presentation of the team and how it works;
  • Case study to be completed at home (1 week);
  • Presentation of your case to the Head of Growth (60 mins, on site) followed by a 'coffee chat' (45 min) with a member of the team.

As an inclusive company, Veolia is committed to diversity and gives equal consideration to all applications, without discrimination.

Apply now

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About the role

April 5, 2026

Full time

Company

April 5, 2026

On-site

Hydropower , Bioenergy , Energy Storage , Hydrogen

Flexcity

flexcity.energy

  •  Auderghem, Belgium

Minimum 3 years of hands-on experience in B2B product marketing

UTC+01:00