Description

Job Title: Senior Lead CFD Engineer 
Location: to be confirmed: Montreal, London |Remote/Hybrid options available 
Employment Type:Full-time 
Salary:$90,000 CAD and up, depending on experience 

About RheEnergise 

RheEnergiseis a cleantech startup developing low-cost, massively scalable, long-duration energy storage. Utilising a proprietary high-density fluid in a closed loop system, we believe that HD Hydro® will be instrumental in enabling the global energy transition, and a net-zero future. After demonstrating the feasibility of our technology, we are now scaling up to commercial scale. 
There is no time to waste in bringing climatech solutions to market. Join our R&D team in commercializing our core technology. 

About the Role 

RheEnergise is looking for a technical leader to build and define our internal Computational Fluid Dynamics (CFD) roadmap. In this role, you will lead the simulation strategies for our first commercial High-Density Hydro pump and turbine. Your work will ensure that our future hydraulic machines are optimized for our proprietary high-density, non-Newtonian fluid. 

Responsibilities: 

• Strategic Leadership:Architect and implement a scalable CFD software ecosystem (e.g., Ansys, Star-CCM+, OpenFOAM) and manage high-performance computing (HPC) resources. You will establish the "RheEnergise Standard" for simulation workflows, ensuring consistency, repeatability, and rigour across the team.
• Team Building & Mentorship:Grow the simulation department by identifying talent and fostering a culture of technical excellence. You will provide hands-on mentorship to junior engineers, guiding their professional development and technical output.
• Collaborative Innovation:Work closely with ourestablished team of experienced advisors. You will be responsible for harnessing their deep industry and academic expertise, translating high-level theoretical input into actionable simulation strategies and design improvements.
• Validation:Work closely with our existing experimental fluid dynamic team to validate CFD results against data collected at our demonstrator project in Plymouth (UK) and in our test facilities in Montreal (CAN).  
• Research & Innovation:Stay current with the latest academic developments in non-Newtonian fluid mechanics and apply them to our design process. Contribute to RheEnergise’s IP portfolio by contributing new and innovative solutions. 

About you 

Problem-solving and innovation are your bread and butter. You enjoy establishing processes and building effective teams. You are passionate about mitigating climate change and finding solutions to change the world. You take pride in your work, while maintaining a “get it done” attitude. 
 
Essential Qualifications: 

• Education: MSc or PhD in Mechanical Engineering, Fluid Dynamics, or Aerospace Engineering
• Experience: 7+ years of industrial experience in CFD, specifically within the hydropower or turbomachinery sectors; 3+ years of leadership and team building experience
• Technical Skill: Deep fundamental understanding of the Navier-Stokes equations, discretization schemes, and turbulence modeling. Advanced proficiency inAnsys CFX/Fluent,OpenFOAM, or comparable software packages
• Soft Skills:Proven ability to make strategic technical decisions (software selection, methodology); manage complex projects including budget and reporting; and communicate findings to executive leadership 

Desirable 

• Knowledge of Fluid-Structure Interaction (FSI)
• Experience with Reversible Pump Turbines (RPT’s) or Francis turbines
• Expertise innon-Newtonian fluid mechanics
• Grant-writing and working in collaborative environments 

Why Work for RheEnergise 

Equity participation through share options, giving you a stake in the company’s success. 
Flexible and hybrid working arrangements across Canada and the UK, supporting work–life balance. 
Comprehensive health insurance plan including mental health services, dental and vision coverage (Canada employees only). 
Ongoing professional development, with a dedicated budget to support your growth and career progression. 
Annual leave allowance of 25 vacation days (applicable in both the UK and Canada). 
You will thrive in a fast-paced — but creative — environment, valuing the autonomy and accountability that a rapidly growing startup business provides 
Build your own team; find the right pieces and form them to an effective unit to deliver solutions for the company 
Get in “at the ground floor” and play a pivotal role in shaping the future of a cleantech startup  
Contribute to real-world innovative projects in the renewables industry. Get to see your hard work turn into a real solution! 

How To Apply 

Send us your CV and a cover letter explaining how you could be the right fit in our team. We’d also love to see an example of something that you have created (alone or with a team). It can be anything (professional, artistic, whatever!) that you think showcases your ability to create great things. 

Requirements

About you 

Problem-solving and innovation are your bread and butter. You enjoy establishing processes and building effective teams. You are passionate about mitigating climate change and finding solutions to change the world. You take pride in your work, while maintaining a “get it done” attitude. 
 
Essential Qualifications: 

Education: MSc or PhD in Mechanical Engineering, Fluid Dynamics, or Aerospace Engineering
Experience: 7+ years of industrial experience in CFD, specifically within the hydropower or turbomachinery sectors; 3+ years of leadership and team building experience
Technical Skill: Deep fundamental understanding of the Navier-Stokes equations, discretization schemes, and turbulence modeling. Advanced proficiency inAnsys CFX/Fluent,OpenFOAM, or comparable software packages
Soft Skills:Proven ability to make strategic technical decisions (software selection, methodology); manage complex projects including budget and reporting; and communicate findings to executive leadership 

Desirable 

Knowledge of Fluid-Structure Interaction (FSI)
Experience with Reversible Pump Turbines (RPT’s) or Francis turbines
Expertise innon-Newtonian fluid mechanics
Grant-writing and working in collaborative environments