Part Time Structural Engineering Jobs in Long Island, NY

Arcadis is the world's leading company delivering sustainable design, engineering, and consultancy solutions for natural and built assets.
We are more than 34,000 people, in over 30 countries, dedicated to improving quality of life. Everyone has an important role to play. With the power of many curious minds, together we can solve the world's most complex challenges and deliver more impact together.
Role description:
Arcadis is seeking a Project Structural Engineer to support the delivery of water, wastewater, and infrastructure projects. This role offers the opportunity to contribute to the structural design of critical public infrastructure - including treatment facilities, pump stations, and related systems -while developing technical expertise and increasing responsibility in project execution.
You will work as part of a multidisciplinary team to develop practical and efficient structural solutions for both new design and rehabilitation projects. This position provides strong growth potential, including opportunities to expand technical expertise and take on increasing ownership of design tasks as you progress toward senior-level roles.
Role accountabilities:
You will perform structural design and analysis for new and existing water and wastewater infrastructure, developing calculations, drawings, and specifications for reinforced concrete, structural steel, and masonry systems. Your work will also include evaluating existing structures and contributing to repair and rehabilitation strategies that address aging facilities and improve long-term performance. In this role, you will take ownership of defined structural design packages, manage scope and deliverables, and apply sound engineering judgment while gaining increasing independence in technical decision-making.
You will collaborate closely with civil, mechanical, and process teams to deliver integrated design solutions, preparing construction documents - including plans, sections, details, and specifications - and supporting quality control reviews to ensure accuracy, constructability, and alignment with project requirements. During construction, you will support field implementation through submittal reviews, RFIs, and site observations, working directly with contractors to resolve challenges and ensure successful execution of your designs. You will also participate in team and client coordination and contribute technical inputs for proposals and project pursuits.
You will contribute to impactful community-focused projects at Arcadis, helping improve water quality, advance sustainability, and enhance the resilience of critical infrastructure. In this role, you will build technical expertise through hands-on project delivery, working alongside experienced engineers and multidisciplinary teams while supporting the design and execution of meaningful infrastructure improvements. You will take an active role in developing your professional capabilities, gaining exposure to increasingly complex responsibilities and progressing toward senior and leadership positions as you deepen your technical and project experience.
Qualifications & Experience:

• Bachelor's degree in Civil or Structural Engineering
• Professional Engineer (PE) license
• 7 years of relevant structural engineering experience

Preferred Qualifications:

• Experience designing reinforced concrete, structural steel, and masonry systems
• Experience with water, wastewater and flood resiliency related projects
• Master's degree in Civil Engineering or Structural Engineering
• OSHA 10 Hr Training

Continue your career journey as an Arcadian.
We can only achieve our goals when everyone is empowered to be their best. We believe everyone's contribution matters. It's why we are pioneering a skills based approach, where you can harness your unique experience and expertise to carve your career path and maximize the impact we can make together.
You do meaningful work, and no matter where your next role in Arcadis takes you, you'll be helping to deliver sustainable solutions for a more prosperous planet. Make your mark; on your career, your colleagues, your clients, your life and the world around you.
Together, we can create a lasting legacy.
Our Commitment to Equality, Diversity, Inclusion & Belonging
We want you to be able to bring your best self to work every day. Our ambition is to be an employer of choice and provide a great place to work for all our people. We are an equal opportunity employer. We are dedicated to a policy of non-discrimination in employment on any basis including race, creed, color, religion, national origin, sex, age, disability, marital status, sexual orientation, gender identity, citizenship status, disability, veteran status, or any other basis prohibited by law.
Arcadis offers benefits for full time and part time positions. These benefits include medical, dental, and vision, EAP, 401K, STD, LTD, AD&D, life insurance, paid parental leave, reward & recognition program and optional benefits including wellbeing benefits, adoption assistance and tuition reimbursement. We offer nine paid holidays and 15 days PTO that accrue per year. The salary range for this position is $100,000 - $130,000. Actual salaries will vary and are based on several factors, such as experience, education, budget, internal equity, project and location.
#LI-ET1