The Business Development Manager will drive growth for environmental remediation, geotechnical, decommissioning, demolition, and civil construction services. Responsibilities include developing market strategies, managing key accounts, building prospect pipelines, identifying partnerships, negotiating deals, preparing marketing collateral, presenting to decision-makers, and securing new business. The role requires extensive industry sales experience, technical knowledge, strong communication and negotiation skills, proficiency with Microsoft Office, and travel up to 50%.