Stormwater Engineer - MS4

At MacKay, we believe great people are the foundation of our growth and success.

We are in an exciting phase of expansion, creating new opportunities for our employees to take on meaningful work, collaborate across disciplines, and build long-term careers. Whether your role is technical or part of our support services team, you play an important role in delivering high-quality work and helping our projects succeed.

For nearly 70 years, Lowe Engineers has built a reputation for engineering excellence, trusted relationships, and exceptional client service throughout the Southeast. Now, as Lowe Engineers, A Part of MacKay, we're building on that legacy as part of a growing national infrastructure and environmental services firm. This partnership creates new opportunities for our employees to collaborate across disciplines, work on meaningful projects, and build long-term careers while continuing to serve clients with the quality and responsiveness Lowe is known for.

We are seeking a full-time Stormwater Engineer to join our team in Atlanta, GA, supporting projects across neighboring municipalities. Design experience in stormwater design projects is preferred. Some travel to neighboring cities is required.

If that sounds good to you, let’s talk.

Position Summary:

The Stormwater Engineer leads the technical and regulatory activities required to operate and maintain the municipality’s Municipal Separate Storm Sewer System (MS4). This position administers the MS4 permit program, coordinates stormwater infrastructure planning and maintenance, manages inspections and investigations, works with the capital projects manager/engineer, and works across departments to protect water quality and reduce flood risk.

Key Responsibilities:

MS4 Program Administration and Compliance

- Administer the municipality’s MS4 permit and maintain compliance with applicable federal, state, and local stormwater requirements.

- Develop, implement, and update the Stormwater Management Program, standard operating procedures, ordinances, policies, and measurable goals.

- Prepare permit applications, annual reports, certifications, schedules, maps, records, and responses to regulatory agencies.

- Track permit commitments, inspection findings, corrective actions, enforcement matters, and program performance.

- Coordinate activities supporting public education and outreach, public involvement, illicit discharge detection and elimination, construction-site runoff control, post-construction stormwater management, and municipal pollution-prevention practices.

System Operations and Asset Management:

- Maintain an accurate inventory and map of stormwater assets, including outfalls, inlets, pipes, ditches, culverts, detention facilities, green infrastructure, and treatment practices.

- Develop risk-based inspection, cleaning, repair, and replacement priorities for the MS4.

- Coordinate field crews and contractors performing preventive maintenance, emergency response, sediment and debris removal, and structural repairs.

- Evaluate drainage complaints, localized flooding, erosion, stream impacts, and system capacity concerns; recommend practical corrective actions.

- Support budgeting, work planning, asset-management systems, level-of-service targets, and long-term capital improvement planning.

Inspections, Investigations, and Enforcement:

- Conduct or oversee inspections of outfalls, municipal facilities, construction sites, post-construction controls, industrial activities, and reported pollution incidents.

- Investigate suspected illicit discharges and improper connections using field observations, sampling, testing, records review, and source tracing.

- Document findings, issue notices or corrective-action requirements within delegated authority, and coordinate escalated enforcement with appropriate departments.

- Maintain defensible inspection, sampling, maintenance, complaint, and enforcement records.

Engineering and Project Delivery:

- Perform or oversee hydrologic and hydraulic analyses, drainage studies, concept development, design review, cost estimating, permitting, bidding support, and construction administration.

- Review development and redevelopment plans for compliance with stormwater, floodplain, erosion-control, and post-construction requirements.

- Prepare scopes of work and manage consultants, contractors, schedules, budgets, deliverables, and quality control.

- Promote resilient and cost-effective solutions, including green infrastructure and nature-based practices where appropriate.

Coordination and Public Service:

- Collaborate with public works, engineering, planning, inspections, parks, emergency management, legal, finance, communications, and executive leadership.

- Respond professionally to residents, businesses, elected officials, developers, and partner agencies regarding stormwater concerns and program requirements.

- Deliver technical training for municipal employees and support public education and participation activities.

- Represent the municipality at regulatory meetings, project meetings, watershed partnerships, and public forums.

Required Qualifications:

- Bachelor’s degree in civil, environmental, water resources, or a closely related engineering field.

- Engineer-in-Training certification.

- Progressively responsible experience in stormwater engineering, municipal drainage, water resources, environmental compliance, or a related field.

- Working knowledge of MS4 permit requirements, stormwater best management practices, erosion and sediment control, drainage design, and municipal operations.

- Ability to interpret engineering plans, specifications, regulations, permits, maps, field data, and technical reports.

- Proficiency with standard office and engineering software; experience with GIS, asset-management systems, and hydrologic or hydraulic modeling tools is desirable.

- Valid driver’s license and ability to travel to municipal facilities, construction sites, waterways, and stormwater assets.

Preferred Qualifications:

- Professional Engineer licensure, or eligibility for licensure, in the applicable state.

- Experience directly administering an MS4 permit or municipal stormwater program.

- Relevant certifications in erosion and sediment control, stormwater inspection, floodplain management, or green infrastructure.

- Experience with capital project delivery, consultant management, procurement, budgeting, and grant funding.

- Strong technical judgment, regulatory interpretation, problem-solving, project management, and written communication skills.

- Ability to organize multiple priorities, meet permit deadlines, maintain complete records, and communicate complex requirements clearly.

- Ability to work independently and collaboratively with field personnel, technical professionals, regulators, contractors, and the public.

- Commitment to public service, environmental stewardship, safety, integrity, and continuous improvement.

Working Conditions and Physical Requirements:

The position combines office (85%) and field work (15%). Field duties may involve uneven terrain, active construction sites, confined or limited-access areas, waterways, traffic, inclement weather, and exposure to typical municipal infrastructure hazards. The employee must be able to use required personal protective equipment, safely conduct inspections, and respond to urgent stormwater incidents outside normal business hours when assigned.

Why Join Lowe Engineers — A Part of MacKay?

The best of both organizations

Join a team with nearly 70 years of engineering excellence and trusted client relationships, backed by the resources, expertise, and opportunities of a growing national firm.

A people-first culture
At MacKay, we put people first. We are committed to creating an environment where employees can grow, contribute, and do their best work. We support well-being, encourage balance, and create space for people to succeed both professionally and personally.

Meaningful work and real impact
Our teams take on complex infrastructure and environmental challenges that support critical systems and shape the places where people live and work. Every role contributes to delivering that work and making it successful.

Growth and opportunity
We are in an exciting phase of growth, expanding across geographies, services, and markets. That growth creates opportunities for our employees to take on new challenges, build their careers, and contribute in new ways as the company evolves.

A strong and trusted foundation
Built on more than 50 years of experience, MacKay has developed a reputation for quality work, strong relationships, and dependable results. You’ll be part of a team with a solid foundation and a clear direction for the future.

Opportunities to share in success
We provide opportunities for employees to participate in ownership and build long-term financial value as the company grows.

Our Values

At MacKay, our values guide how we work, collaborate, and support one another.

- Honesty. We build trust through transparency, integrity, and accountability.

- Dedication. We are committed to the success of our team members, clients, and communities.

- Relationships. We foster lasting connections that strengthen our work and the teams around us.

Who We Are

Lowe Engineers is now part of MacKay, an infrastructure and environmental services firm with more than 50 years of experience serving clients across the United States.

We are in an exciting phase of growth, expanding our reach, strengthening our capabilities, and bringing together talented teams across the country. That growth is creating new opportunities for our employees to take on meaningful work, collaborate across disciplines, and build long-term careers.

Every role at MacKay contributes to the success of our projects and the clients we serve. Whether your work is technical or operational, you are part of a team that delivers quality, builds relationships, and moves projects forward.

We’re looking for dedicated, talented individuals who deliver excellence, thrive in collaborative environments, and value both meaningful work and work-life balance. If this sounds like you, we’d like to hear from you.

Please note that the salary information shown below is a general guideline only. Salaries are based upon candidate experience and qualifications, as well as various market and business considerations.

US Pay Range $105,000 — $125,000 USD
Full-time employees receive a well-rounded benefit package including access to our company-sponsored Medical (including an HSA High Deductible option), Dental, Vision, FSA, and Supplemental Life Insurance plans. We also offer 100% company-paid Life Insurance, Short-Term Disability, and Long-Term Disability coverage. Employees are eligible to participate in our company's 401(k) plan with up to a 4% match. Additionally, employees receive paid vacation and sick time, 11 paid holidays, and are able to participate in employee ownership options. MacKay pays for expenses associated with licensure as well as annual performance bonuses.

Employment requires passing a pre-employment background check and drug screen.

As a federal contractor, we participate in E-Verify and are proud to be an Equal Employment Opportunity Employer.

Open until filled.