Assystem provides engineering, project management and digital services to optimise the performance and safety of critical infrastructure throughout its lifecycle.

The company first came to India having acquired Stup Consultants Pvt Ltd in 2021 and L&TIEL in 2024. The company combines its globally recognised expertise in complex project management, with deep-rooted local experience cross full spectrum of infrastructure – from energy, transportation and urban development to water. Today, Assystem has a strong community of 1,500+ multidiscipline engineering experts connected across 8 offices in India.

The Assystem Group is one of the world's leading independent nuclear engineering companies, ranked among the top three globally, with 60 years of experience in complex and highly regulated environments. With 8,000 experts across 13 countries, Assystem supports the development of low-carbon energy.

For company profile, please visit the website :- www.assystemstup.com

Job Description

Job Summary

We are seeking a highly experienced Drainage / Hydrology Engineer to lead the planning, analysis, and design of surface and subsurface drainage systems for infrastructure and development projects. The role involves hydrological modeling, flood risk assessment, stormwater management design, and ensuring compliance with applicable standards and regulatory requirements.

Candidate shall have proven experience delivering end-to-end drainage design solutions across urban, industrial, highway, airport, seaport, and railway projects.

Key Responsibilities

Hydrology & Hydraulic Analysis

Perform hydrological studies including rainfall-runoff analysis, watershed modeling, and flood estimation.
Conduct hydraulic analysis for open channels, culverts, stormwater networks, and river systems.
Develop floodplain maps and assess flood risks using appropriate models.

Drainage Design

Design stormwater drainage systems including:

Roadside drainage (gutters, ditches)
Culverts and cross-drainage works
Stormwater pipelines and retention/detention systems

Ensure efficient stormwater management while minimizing flood risks and erosion.

Modeling & Software Use

Utilize industry-standard tools such as:

HEC-HMS, HEC-RAS
SWMM, MIKE FLOOD / MIKE URBAN
Civil 3D, InfoWorks, or similar platforms

Prepare model inputs, calibrate models, and interpret results for design optimization.

Project Coordination

Collaborate with civil, structural, environmental, and geotechnical teams.
Provide technical guidance and mentorship to junior engineers.
Coordinate with clients, consultants, and government authorities.

Compliance & Standards

Ensure all designs comply with applicable standards, codes, and guidelines (IRC, MoRTH, local municipal requirements, international standards, etc.).
Prepare reports, technical specifications, and design documentation for approvals.

Risk & Sustainability

Conduct climate resilience and flood risk assessments.
Implement sustainable drainage systems (SuDS) and low impact development (LID) solutions where applicable.

Required Qualifications

Education

Bachelor's Degree in Civil Engineering (mandatory)
Master's Degree in Hydrology / Water Resources Engineering (mandatory)

Experience

Minimum 10+ years of relevant experience
Proven experience in:

Highway or urban drainage projects
Large infrastructure development
Flood risk and hydrological assessments

Technical Skills

Strong knowledge of hydrology, hydraulics, and drainage engineering principles
Proficiency in:

HEC-RAS, HEC-HMS
SWMM / MIKE / InfoWorks
AutoCAD / Civil 3D

Experience with GIS tools (ArcGIS/QGIS) preferred
Postgraduate in Hydrology / Environmental Engineering (or equivalent) with 10+ years of proven experience delivering end-to-end drainage design solutions across urban, industrial, highway, airport, seaport, and railway projects.
Demonstrated ability to independently plan, model, and optimize stormwater systems, from catchment analysis and concept stage through to detailed design and GFC deliverables.
Strong command of hydrologic and hydraulic modelling tools (SWMM, HEC-RAS, HEC-HMS, SewerCAD/Storm CAD, Civil 3D, QGIS, TUFLOW, MIKE, HY-8), applied to solve complex drainage challenges.

Soft Skills

Strong analytical and problem-solving skills
Excellent communication and report writing skills
Leadership and team management capability
Ability to manage multiple projects and meet deadlines

Key Competencies

Flood risk assessment and mitigation
Watershed management
Stormwater system optimization
Sustainable drainage design
Regulatory compliance and approvals

Preferred Attributes

Experience in international projects or multi-disciplinary teams
Knowledge of climate change impact assessment
Chartered Engineer / Professional Engineer (preferred)

Qualifications

Education

Bachelor's Degree in Civil Engineering (mandatory)
Master's Degree in Hydrology / Water Resources Engineering (mandatory)

Additional Information

We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people's ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.

Senior Drainage / Hydrology Engineer