Process Engineer

Process Engineer (Water and Wastewater Treatment Design)

$120,000 - $140,000 + Stock Options + Health Benefits + 401(k) + PTO

Austin, Texas

Are you a Process Engineer with water and wastewater treatment design experience looking for a high-impact role where you can take full technical ownership of projects, accelerate your career progression in a fast-growing startup, and help deliver innovative solutions that are transforming the future of water sustainability?

On offer is the chance to join a rapidly growing engineering business working on cutting-edge water treatment, wastewater reuse, potable reuse, industrial water, PFAS treatment, wave pools, lagoons, surf parks, and sustainable infrastructure projects. This is a role with hands-on technical ownership, stock options, career progression, and the opportunity to influence the development of next-generation treatment technologies.

This company is an ambitious and well-funded engineering business focused on solving some of the world's most critical water challenges through advanced treatment technologies and sustainable infrastructure solutions. With major projects already secured and significant growth plans underway, they are building a team of passionate, high-performing engineers who want to make a genuine impact while working in a highly collaborative and fast-paced environment.

On offer is a highly technical and hands-on Process Engineer role where you will take ownership of complete water and wastewater treatment system designs from concept through commissioning. You will develop process flow diagrams, P&IDs, hydraulic calculations, equipment specifications, mass balances, process narratives, and bills of materials while collaborating with multidisciplinary teams, supporting permitting activities, engaging directly with clients, and leading commissioning activities in the field. This is an excellent opportunity for someone who thrives in fast-moving environments, enjoys solving complex engineering challenges, and wants to see their designs rapidly progress from concept to operation.

This role would suit a Process Engineer with strong water and wastewater treatment design experience looking for technical ownership, career growth, and the opportunity to work across a diverse range of impactful projects.

The Role:

*Design complete water and wastewater treatment systems across drinking water, wastewater, reuse, industrial, modular, recreational, and residential applications

*Develop PFDs, P&IDs, mass balances, hydraulic calculations, process control narratives, equipment specifications, and BOMs

*Work on high-value projects in a fast-growing startup environment with progression opportunities as the business scales

*Support factory testing, site commissioning, startup activities, permitting, regulatory compliance, and client-facing technical discussions

The Candidate:

*Water and/or wastewater treatment process engineering experience

*Experience designing treatment systems including conventional and advanced treatment technologies such as membrane filtration, biological treatment, disinfection, advanced oxidation, ion exchange, and electrochemical processes

*Professional Engineer (PE) license preferred, with Texas PE highly desirable

*Experience with process design ownership, commissioning activities, regulatory compliance, and fast-paced engineering environments

Reference Number: BBBH275090

To apply for this role or for to be considered for further roles, please click "Apply Now" or contact Tiernan Conlon at Rise Technical Recruitment.


Rise Technical Recruitment Inc of 1011 Centre Rd, Suite 322, Wilmington, DE 19805 act as an employer-paid private personnel agency.

The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client.

We are an equal opportunities company and welcome applications from all suitable candidates.