Join a leading engineering firm known for delivering innovative and sustainable water infrastructure solutions across California and Arizona. With a strong reputation for technical excellence and a collaborative, people-first culture, this team works on transformative projects that shape communities. Sr. stormwater designers here play a critical role in developing advanced drainage systems, integrating green infrastructure, and guiding junior staff through complex design challenges. ️ Key Responsibilities + Lead the design of stormwater management systems for land development and public infrastructure projects + Prepare and refine grading, drainage, and stormwater plans using Civil 3D and AutoCAD + Perform hydrologic and hydraulic modeling using tools such as Hydraflow, WSPG, and HEC-RAS + Develop SWPPPs and ensure compliance with local, state, and federal stormwater regulations + Collaborate with engineers, CAD staff, and project managers to deliver high-quality design packages + Review and redline plans for accuracy, constructability, and regulatory compliance + Mentor junior designers and engineers, providing technical guidance and training + Participate in internal QA/QC reviews and contribute to design standards development + Coordinate with clients, agencies, and multidisciplinary teams to align design goals and expectations + Support permitting efforts and respond to agency comments Required Qualifications + Associate’s or Bachelor’s degree in Civil Engineering, Environmental Engineering, or related field + 7+ years of experience in stormwater design and land development + Advanced proficiency in Civil 3D, AutoCAD, and stormwater modeling software + Strong understanding of stormwater regulations including MS4, NPDES, and Title 22 + Experience preparing SWPPPs and drainage reports + Excellent communication and technical writing skills + Ability to lead design efforts and mentor junior staff ️ Desired Skills + Familiarity with green infrastructure and low-impact development (LID) practices + Experience with CEQA documentation and environmental permitting + Knowledge of regional hydrology and stormwater standards (Southern California preferred) + Exposure to redevelopment, infill, and mixed-use site design + Experience with Bluebeam and collaborative design workflows Why You’ll Love Working Here + Contribute to high-profile projects like the Santa Monica Advanced Water Treatment Facility and SoFi Stadium’s integrated lake system + Thrive in a supportive, innovation-driven environment that values technical growth + Enjoy a flexible, balanced workplace culture with strong mentorship Perks & Benefits Include: + Health & Wellness: + Medical, dental, and vision insurance (HSA & PPO options) + Up to $3,000/year reimbursement for out-of-pocket medical expenses + $100/quarter for personal wellness (gym, nutrition, CPR training) + Fitbit incentive program (earn up to $300/quarter) + Employee Assistance Program (EAP) + Work-Life Balance: + PTO and paid holidays + Bereavement leave + Flexible work arrangements + Career Development: + Tuition and training reimbursement + Professional license and exam fee reimbursement + Association dues covered + Monthly in-house training + 100+ recorded courses + Mentorship and leadership development + “10-Talks” lunch & learns every 10th day of the year + Financial Security: + Generous biannual bonuses based on company profitability and individual contributions + Potential for future ownership + 401(k) with discretionary matching (currently 50% up to 10% of salary) + Life and AD&D insurance + Short- and long-term disability coverage + Employee referral bonus program Pay and Benefits The pay range for this position is $90000.00 - $160000.00/yr. • Medical, dental, and vision insurance for employees and dependents: Two HSA programs with a $0 premium option, two PPO programs, and various dental plans• Flexible Spending Accounts (FSAs) for medical and dependent care• Reimbursement for out-of-pocket medical expenses (e.g., co-pays, deductibles); Up to $2050 per year for out-of-pocket medical expenses if on the company's insurance plan. If not on the plan, up to $3000 per year• Reimbursement for personal wellness programs (e.g., gym memberships); $100 per quarter for personal wellness expenses such as gym memberships, nutrition classes, or first aid/CPR training ( Offered every 2 years, paid for by the company)• Employee Assistance Program (EAP) for counseling, legal, and financial services• Fitbit health incentive program; can earn up to $300/quarter for steps and active minutes Work-Life Balance• Paid time off (PTO) and paid holidays• Bereavement leave• Flexible work arrangements Career Development• Tuition and training reimbursement• Reimbursement for professional license and exam fees• Association dues reimbursement• Monthly in-house training sessions and access to 100+ recorded courses• Mentorship programs and leadership development opportunities• 10- talks - lunch and learns every 10th day of year Financial Security• Privately held (not an ESOP), allowing for generous and flexible bonus distributed twice a year based on company profitability, role, tenure, and individual contributions• Potential for future ownership—can become key stakeholders • Employee referral bonus program• 401(k) with discretionary matching based on quarterly basis profit -- have been doing 50% lately up to 10% of salary on quarterly basis• Life and AD&D insurance• Short-term and long-term disability insurance Workplace Type This is a fully onsite position in Tustin,CA. Application Deadline This position is anticipated to close on Sep 10, 2025. About Actalent Actalent is a global leader in engineering and sciences services and talent solutions. We help visionary companies advance their engineering and science initiatives through access to specialized experts who drive scale, innovation and speed to market. With a network of almost 30,000 consultants and more than 4,500 clients across the U.S., Canada, Asia and Europe, Actalent serves many of the Fortune 500. The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law. If you would like to request a reasonable accommodation, such as the modification or adjustment of the job application process or interviewing due to a disability, please email actalentaccommodation@actalentservices.com (%20actalentaccommodation@actalentservices.com) for other accommodation options.