Consultant, Hydrology

ERM; New Delhi; On-site; INR 1,500,000 - 2,500,000; Full time

Job summary

ERM is seeking a Hydrology Consultant to support global renewable energy and infrastructure projects from our Consulting Delivery Hub in India. You will deliver hydrology, hydrogeology, and water environment assessments to inform planning, permitting, and environmental decision‑making.

Join a multidisciplinary team collaborating with colleagues across the UK, Ireland, and India to integrate water considerations into project design, manage technical tasks, and ensure regulator‑ready documentation.

Qualifications

• Degree in hydrology; strong report writing skills; experience delivering hydrology/hydrogeology EIA chapters and technical studies.
• Familiarity with UK-wide and Irish water legislation, planning policy, and regulatory requirements.
• Experience in renewables projects (onshore wind, transmission, solar, hydrogen) and ability to manage multiple projects.

Responsibilities

• Write hydrology and hydrogeology EIA chapters and associated technical appendices.
• Develop Groundwater Dependent Terrestrial Ecosystems (GWDTE) risk assessments and related studies.
• Support scoping and baseline data collection for surface water and groundwater.
• Collaborate with ecologists, hydrogeologists, engineers to integrate water considerations into design.
• Prepare clear documentation for planning and permitting processes.

Skills

Hydrology

Report writing

Data interpretation

Independent work

Education

Degree in hydrology

Tools

ArcPro GIS

MS Office

SharePoint

Job description

ERM is the world’s largest specialist sustainability consultancy, with over 50 years of experience helping organizations navigate complex environmental, social, and governance challenges. We bring together a global community of experts to deliver meaningful impact for our clients and the planet. Our Consulting Delivery Hub (CDH) in India is a critical part of ERM’s global consulting model enabling scalable, high‑quality delivery across regions and service lines. CDH teams work in close partnership with regional consultants to support global client projects, providing specialist expertise, driving consistency, and enhancing delivery efficiency across our most important programmes. As part of the Consulting Delivery Hub, you will collaborate with colleagues worldwide, contribute to complex sustainability projects, and play a key role in shaping the future of global consulting delivery.

Why this role matters?

As a Hydrology Consultant, you will support ERM's global renewable energy and infrastructure projects by delivering high‑quality hydrology, hydrogeology, and water environment assessments that inform sustainable project development and environmental decision‑making. Working closely with ERM consultants, engineers, ecologists, and project teams across the UK and Ireland, you will contribute to environmental impact assessments, planning applications, and permitting processes for complex projects. This role is critical in helping clients manage water‑related risks, meet regulatory requirements, and develop projects that protect water resources, ecosystems, and surrounding communities while enabling efficient and scalable project delivery through ERM's Consulting Delivery Hub.

What your impact is?

Deliver high‑quality hydrology and hydrogeology assessments, reports, and technical appendices that support planning, permitting, and environmental compliance requirements. Contribute to the successful development of renewable energy and infrastructure projects by identifying and assessing potential water‑related impacts and risks. Produce clear, defensible, and regulator‑ready technical documentation that supports informed client and stakeholder decision‑making. Apply rigorous technical review and quality assurance processes to ensure accuracy, consistency, and compliance with relevant legislation and guidance. Collaborate with multidisciplinary teams including ecologists, hydrogeologists, engineers, and environmental specialists to integrate water environment considerations into project design. Support the efficient delivery of global consulting projects by managing technical tasks, meeting project deadlines, and maintaining high‑quality standards.

What will you bring?

Degree in hydrology, or related discipline. Excellent report writing skills and experience delivering hydrology and hydrogeology environmental impact assessment (EIA) chapters and associated technical studies. Familiarity with UK wide (Scotland, England, Wales, Northern Ireland) and Irish water related legislation, planning policy, local authority planning policy and guidance, and regulatory requirements. Demonstrated experience in renewables projects, including onshore wind, electricity transmission infrastructure, solar, and hydrogen with knowledge of planning and environmental requirements. Strong data interpretation skills. Ability to manage tasks independently and work on multiple projects at a time.

Preferred skills & competencies

Experience in writing flood risk assessments (FRA) including peak flow estimation using the appropriate UK methodologies and hydraulic modelling. Experience using GIS (ArcPro) for spatial analysis, mapping, and surface water modelling. Document and collaboration tools (MS Office Suite, SharePoint).

Key responsibilities

• Writing hydrology and hydrogeology EIA chapters and associated technical appendices ensuring compliance with relevant legislation and client requirements.
• Associated technical appendices include: Groundwater Dependent Terrestrial Ecosystems (GWDTE) risk assessments; Private water supply risk assessments; Watercourse Crossing Inventories; Water Quality Monitoring Reports; and Water Framework Directive assessments.
• Support scoping and baseline data collection for surface water and groundwater.
• Liaise with ecologists, hydrologists, hydrogeologists, and engineers to integrate water considerations into project design.
• Prepare clear, defensible documentation for planning and permitting processes.

At ERM, sustainability is our business. We are the world’s largest advisory firm focused solely on sustainability, offering unparalleled expertise across business and finance. ERM partners with clients to operationalize sustainability at pace and scale, through our unique combination of strategic transformation and technical delivery capabilities. Our diverse global team of experts works with the world’s leading organizations to help them set clear sustainability targets, measure progress and operationalize strategy through deep implementation and business transformation. With more than 50 years of experience, our ability to integrate sustainability solutions and our depth and breadth of technical knowledge are why organizations choose to partner with us as their trusted advisor. Every one of us firmly believes in the potential to create value for our clients through an integrated approach to sustainability (because we have personally seen it and professionally achieved it). Our team members are passionate about client service. We work closely with our clients to help them operationalize their sustainability goals and meet their environmental, health and safety objectives while advancing ERM’s purpose through delivering tangible progress in what the United Nations coined The Decade of Action. Organizing our people across globally integrated communities of technical and strategic talent positions ERM to be a “boots to boardroom” leader in bringing that value creation to our clients, partners, and the world. We recruit exceptional professionals with a personal and professional passion for sustainability and nurture them to even greater success as specialists. We prepare our consultants to bring integrated, innovative and sustainable solutions to our clients and provide opportunities for ongoing development across a variety of subject areas related to technical, business, and personal growth. At ERM, effort pays off and becomes career defining work that leaves a positive imprint on our planet.