& associates hydro marine construction simplified bridge systems innovation in action we are marine structural engineers and contractors with a dual expertise in design build services providing you with seamless innovative and cost effective underwater inspection design and construction solutions . learn more underwater inspection design and construction the castle group combines the knowledge and design skill of a leading edge marine engineering company with the practical know how of an underwater contractor . from underwater design and analysis to bridge construction to repair and consultation the castle group offers comprehensive and cost effective solutions . the castle group is as innovative in our corporate structure as we are in our designs . we consist of three companies offering unparalleled innovation execution and timeliness w.j. castle & associates hydro marine construction simplified bridge systems . the result is a marine engineering firm informed by real world dynamics and a marine construction company that can draw on the expertise of seasoned engineers . based in philadelphia pennsylvania but servicing the northeast and the entire united states we re ready to contribute to your next project . the castle group is certified sbe and vosb . employment opportunities marine structural engineer a marine engineering and construction company located in hainesport nj is looking to fill an engineering position . duties bridge and other marine structure inspections including underwater inspections . design of marine structures and bridges . construction engineering . construction management and construction inspection . both office and field assignments . requirements bs or beng in civil or structural engineering . 1 to 4 years of experience and minimum of eit certification . nhi bridge inspection course completion a plus . experience in diving a plus . experience with autocad and or microstation a plus . william j. castle pe & associates founded in 1983 are a structural civil engineering company . we provide structural designs underwater inspection services testing and more . learn more founded in 1997 hydro marine construction has enabled the castle group to provide construction and design build services using our own personnel . learn more established in 2001 simplified bridge systems designs and builds customized prefabricated bridge systems then delivers and installs them on site . learn more the castle group p 800.644.4713 f 609.261.3422 wjc wjcastlegroup.com tynddol building 1345 route 38 west hainesport nj 08036 home w.j. castle & associates hydro marine construction simplified bridge about us testimonials projects news contact us employment site map 2013 the castle group website and seo created by mediamark spotlight