Waterleau is a global Water Technology Company committed to protect one of our most valuable natural resources: water. We provide solutions for water production, wastewater treatment and water reuse. We will do everything in our power to help industries and municipalities reach their sustainable development goals. We strongly believe that every drop counts.

Passionate about water, we have developed a portfolio of state-of-the-art water technologies and acquired an impressive track record of +2000 references across all continents.

Our services include design & build of turnkey plants, technology pack providing as well as outsourced operations and maintenance.

We’re looking for a driven O&M Bid Manager to lead the proposal process for our operations & maintenance (O&M) contracts. You'll coordinate complex tenders from A to Z—ensuring compelling, competitive, and compliant proposals that reflect both technical excellence and commercial insight. You'll work closely with cross-functional teams across engineering, operations, finance, and legal to deliver winning bids that support our mission: Every Drop Counts.

Proposal Management
• Lead the end-to-end bid process for O&M contracts, assisting in opportunity assessment, bid/no-bid decisions, proposal planning, content development, and submission.
• Coordinate cross-functional bid teams involving technical, legal, financial, operational, and
commercial stakeholders.
• Develop and maintain detailed bid schedules, ensuring all deadlines are met and submission requirements are fully compliant.

Technical & Commercial Input
• Analyze tender documents (RFPs, RFQs, ITTs) and identify key risks, deliverables, and
compliance requirements.
• Translate operational strategies and technical solutions into compelling written content tailored to client needs.
• Collaborate with engineering and operations teams to define staffing plans, maintenance
approaches, service level agreements, and performance metrics.
• Support pre-bid client engagement and site visits, helping build relationships and understand client expectations.
• Present bid strategies and proposal outcomes to senior management for review and approval.
• Participate in post-submission negotiations, clarifications, and contract handover processes.

Costing & Financial Modelling
• Develop competitive pricing strategies and life-cycle cost models.
• Calculate O&M cost estimates, including labor, consumables, energy, chemicals, spare parts, and subcontractor costs. You are responsible to collect the required data in the different WATERLEAU teams,
• Optimize bids for cost-effectiveness while maintaining service quality and profitability targets.

Knowledge Management & Continuous Improvement
• Collaborate with the WATERLEAU O&M teams in place to collect experiences, lessons learned, and continuously improve our calculation models and methods
• Maintain a library of reusable content, standard templates, and cost benchmarks for future bids.
• Conduct post-bid debriefs and lessons learned reviews to improve proposal quality and win rates.
• Monitor industry trends, competitor activities, and regulatory developments affecting O&M bids.

Services Portfolio Development
• Support the Corporate Product Officer on service innovation projects—including consumables and spare parts strategies across key markets.

• 5+ years in proposal or bid management, preferably in the water or industrial sector.
• Strong understanding of wastewater/water treatment technologies.
• Excellent writing and project management skills under tight deadlines.
• Proven ability to manage complex tenders (public/private, DBO, PPP, etc.).
• Proficiency with tools like SharePoint or CRM platforms.
• Degree in (bio)chemical engineering, environmental science, business, or related field.

• A competitive salary package with great benefit
• Opportunity for professional growth and development.
• The ability to have a positive and tangible impact on our environment and the world around you.
• A role with responsibility and ownership over a platform used by more than a hundred engineers worldwide.
• If you are passionate about water conservation, sustainability, and software development, we encourage you to apply
  for this exciting opportunity.