Job Description

Axens is looking for a

Biomass Sales Manager (F/M)

For its subsidiary HYDROTHANE STP B.V. (NL)

Localisation : 's Hertogenbosch

Axens Presentation :

Axens group provides a complete range of solutions for the conversion of oil and biomass to cleaner fuels, the production and purification of major petrochemical intermediates, the chemical recycling of plastics, all natural gas treatment and conversion options along with water treatment and carbon capture. The offer includes technologies, equipment, furnaces, modular units, catalysts, adsorbents and related services. Axens is also specialized in Carbon Capture. Axens is ideally positioned to cover the entire value chain, from feasibility study to unit start-up and follow-up throughout the entire unit life cycle. This unique position ensures the highest level of performance with a reduced environmental footprint. Axens global offer is based on highly trained human resources, modern production facilities and an extended global network for industrial, technical supports & commercial services.

Axens combines the friendliness of a company on a human scale and the influence of a multinational environment whose customers are spread over more than 85 countries.

Axens is an IFP Group company.

Its subsidiary, HydroThane STP is a specialist in anaerobic industrial wastewater treatment with more than 35 years of experience and a proven track record across 170+ installations in over 35 countries. Large international companies are among the customers of HydroThane STP technologies. Due to the rapid growth of our company, we are looking for a motivated employee for this position.

Granular anaerobic sludge is an essential input for reactor start-ups, reseeds, and incident recovery across the food & beverage, pulp & paper, chemical, sugar & starch, and biogas sectors. HydroThane operates as both a seller (supplying inoculum to industrial clients) and a buyer (purchasing surplus biomass and redistributing it).

HydroThane STP is informal, entrepreneurial and flexible. We enjoy our work and are happy to invest our knowledge and time in your development. We offer a very varied position within a company with a future, where taking responsibility and initiative is encouraged.

Missions :

What will you do?

In the position of Biomass Sales Manager you will, after a thorough induction period, become a central figure within our sales department.

You will be responsible for the entire process of both trade and logistics of anaerobic biomass and nutrients.

In this versatile role, you report directly to the Commercial Manager and manage, together with the team, the following core areas:

1. Sales & Business Development

· Build and manage a portfolio of 20+ active buyer accounts across Europe

· Manage the full sales cycle from prospecting to signed framework supply agreements

· Identify and convert emergency supply opportunities (reactor incidents, washout events)

· Execute seasonal pre-sell campaigns

· Develop new markets, leveraging Axens Group’s existing network

1. Supply Sourcing & Purchasing

· Identify and contract biomass supply sources: industrial installations with surplus production

· Negotiate bilateral buy-and-sell arrangements with large-scale anaerobic reactor operators

· Maintain live visibility of supply stock across contracted storage locations

1. Relationship Management & Reporting

· Serve as primary commercial contact for all buyer and supplier accounts;

· Maintain a clean and up-to-date CRM pipeline with order history, reactor specs, and upcoming needs

· Prepare monthly commercial reports covering pipeline, revenue, and margins for management

· Represent HydroThane at relevant trade events to generate leads and maintain market presence

Knowledge and Required Level :

Bachelor’s or Master’s degree in Engineering, Biotechnology, or Business with strong technical exposure. You bring 8+ years of experience, including B2B account management or technical sales in water treatment, environmental services, or related industries.

Proven in developing client portfolios, closing contracts, and delivering growth, you combine strong communication and negotiation skills with an entrepreneurial mindset. Knowledge of anaerobic wastewater treatment is a plus. Dutch (native/fluent) and English (C1+) are required; French or German is an asset. Willingness to travel up to 40%.

Nice to Have

· Existing network in the European anaerobic wastewater or biological process market

· Experience with biological product trading (inocula, enzymes, microbial cultures, or digestate)

· Knowledge of incoterms and international trade documentation

· Experience representing a company at industry conferences

Associated Skills :

· You are a practical-minded candidate with an affinity for the biotechnology industry. The Biomass Sales Manager we want to strengthen our team with, is able to work independently, is accurate, honest and also flexible when the situation demands it;

· You are an effective and agile communicator;

· You are customer centric and solution oriented.

What We Offer

· Competitive package with a market-aligned fixed and performance based salary, car allowance, and travel expenses.

· International exposure with clients and partners across 15+ countries, offering regular travel throughout Europe and opportunities for global expansion.

· Entrepreneurial freedom to shape the commercial approach, build your pipeline, and drive business growth with real ownership.

· Strong backing from Axens Group, providing financial stability, a global network, and a long-term growth vision.

· Dedicated support team, including a logistics coordinator, a commercial manager, and HydroThane's engineering experts.

· Technical excellence at your fingertips, with full support from HydroThane's engineering team for reactor-specific biomass expertise and quality assurance.

· Hybrid working environment, based in ’s-Hertogenbosch, with up to 2 days of home office per week, in line with company policy.

· A unique growth opportunity to join a dynamic and expanding business where your contribution will have a direct and visible impact.

"Chez Axens, nous remettons en question les stéréotypes et les clichés.

C’est d’ailleurs le fondement de notre engagement en faveur de la Diversité, de l’Équité et de l’Inclusion.

Seuls votre talent et votre personnalité comptent pour nous !"

“At Axens, we challenge stereotypes and clichés.

It is actually the foundation of our commitment to Diversity Equity & Inclusion.

Only your talent and personality matter to us!”