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Arcadis

Global design, engineering, consultancy for assets

Senior Aquatic Biologist

Environmental SciencesUpdated on Nov 13
Full-timeOntario, Canada$96.8k - $145.2k

About the Job

Requirements

  • A bachelor's degree in biology, fisheries biology, aquatic ecology, or a related discipline, and at least 10 years of relevant experience in fisheries, aquatic ecology, environmental consulting or assessment, infrastructure, natural resources, or regulatory projects.
  • Experience with federal projects involving fish or fish habitat, impact assessment, or permitting, including coordination with federal agencies.
  • Ability to apply federal and provincial requirements, guidance, and best practices for fish habitat, aquatic species at risk, benthic invertebrates, and in- or near-water construction.
  • Hands-on Ontario experience conducting fish and aquatic habitat surveys, benthic and sediment sampling, defensible data collection, and crew leadership.
  • Strong knowledge of Ontario aquatic ecosystems, fish habitat, benthic and sediment assessment methods, sampling protocols, impact assessment, mitigation, and environmental monitoring.
  • Technical writing, data interpretation, communication, and problem-solving abilities, and the ability to prioritize, meet deadlines, work independently, and exercise senior technical judgment in consulting or project delivery.
  • A valid Ontario driver's licence and ability to travel province-wide, including occasional remote assignments, overnight stays, and fieldwork in variable weather and terrain.

Responsibilities

  • Lead Ontario and central Canada field programs, including watercourse and fish habitat assessments, fish sampling, habitat mapping, spawning and benthic surveys, barrier assessments, sediment sampling and assessment, and construction monitoring; oversee scope, methods, safety, logistics, equipment, data quality, and field crews.
  • Support federal projects involving contaminated sites, environmental and fisheries reviews, authorizations, and permits.
  • Prepare and review reports, environmental and impact assessments, permit submissions, mitigation, compensation and offsetting plans, monitoring plans, and construction specifications; advise on aquatic ecology, fish habitat, species at risk, restoration, and regulatory strategy.
  • Collaborate with planning, ecology, engineering, geomorphology, hydrology, Indigenous engagement, and construction teams.
  • Mentor junior and intermediate biologists through field training, technical review, and delivery guidance; maintain documentation and compliance with regulatory, project, safety, and quality-management requirements.
  • Support proposals, work plans, budgets, schedules, and project management; track scope, risks, and deliverables.
  • Develop business opportunities, client relationships, technical pursuits, and cross-service collaboration; implement Ontario's Fisheries and Aquatic Ecology strategy for capabilities, recruitment, service diversification, and market growth.

Desired Qualifications

  • A master's degree or PhD.
  • Experience with Fisheries Act reviews and authorizations, Department of Fisheries and Oceans permitting, compensation and offsetting, and post-construction monitoring; species at risk assessments, aquatic surveys, permitting, and mitigation; and sediment assessments, including contaminated sediments.
  • Electrofishing crew lead certification, fish identification training, mussel identification experience, boating certifications, First Aid, WHMIS, or other safety training; relevant professional or technical registration or eligibility.
  • Experience in transportation, municipal infrastructure, energy, mining, federal lands, ports, airports, defence, or other federally regulated projects; proposal development, budget and schedule management, client relationships, and business development.

About the Company

Arcadis

Global design, engineering, consultancy for assets

Arcadis is a global design, engineering, and consultancy firm that creates and manages natural and built assets. It operates across the Americas, Europe, the Middle East, and the Asia Pacific, serving governments, public agencies, and private companies. Its four business areas—Places, Mobility, Resilience, and Intelligence—cover sustainable buildings and urban development, transportation infrastructure, climate adaptation, and data-driven digital solutions to optimize asset performance. The company earns fees for its integrated services that combine planning, design, engineering, and advisory work. Arcadis differentiates itself through its global reach and its integrated, multi-disciplinary approach that links physical design with data analytics and digital insights to deliver high-value solutions. Its goal is to help clients create and maintain sustainable, resilient, and efficient assets while improving decision-making and performance across complex projects.

Company size
10,001+
Company stage
IPO
Headquarters
Watermael-Boitsfort, Belgium
Founded
1888

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