We are looking for a Senior Geotechnical Engineer to join our Americas East Infrastructure team, with a strong emphasis on geotechnical design, analysis, interpretation and delivery. The successful candidate will provide hands-on technical input and review across infrastructure and building projects, including bridges, rail and transit, tunnels and underground structures, waterfront/marine works, aviation, utilities and major redevelopment projects. The Opportunity • Lead and deliver geotechnical design workstreams for infrastructure and building projects, including bridges, rail and transit, tunnels and underground structures, waterfront/marine works, aviation, utilities, major redevelopment projects, and data centers. • Perform, check and review geotechnical analyses and design calculations for shallow and deep foundations, retaining walls, support of excavation, earthworks, settlement, slope stability, ground improvement, groundwater/dewatering considerations, and underground structures. • Develop geotechnical design parameters and practical recommendations from subsurface investigation data, laboratory testing, existing records, numerical analyses and engineering judgement. • Scope, plan, support delivery and interpret subsurface investigation and laboratory testing programs, translating ground information into design recommendations and construction-stage advice. • Prepare, check and review geotechnical calculation packages, reports, input to drawings, technical specifications, design memoranda and construction-phase documentation. • Undertake soil-structure interaction analyses and numerical modelling using tools such as Plaxis 2D/3D, FLAC, LS-DYNA or similar software, with a focus on practical design interpretation. • Collaborate with multidisciplinary teams to integrate geotechnical recommendations into civil, structural, tunnel, rail, waterfront, aviation, utility and building design packages. • Support construction-phase services, including review of contractor submittals and RFIs, interpretation of field conditions, foundation and earthworks observations, instrumentation review and technical input during construction. • Coordinate with geotechnical subconsultants, drilling contractors, laboratories and field staff to support high-quality investigation and design delivery. • Mentor, delegate to and provide technical guidance to junior geotechnical engineers, including review of calculations, reports, drawings and field documentation. • Support proposal and scope development for geotechnical design and investigation work, contributing to technically robust solutions that can be delivered within agreed scope, schedule and budget. • Present technical material clearly to internal teams, clients, reviewers, contractors and non-technical audiences. • Support technical input to bids and proposal for geotechnical projects. • Support senior leadership to maintain relationships with existing and prospective clients with in geotechnical works. Is this role right for you? • Bachelor's degree in Civil, Geological, Geotechnical or related engineering discipline; Master's degree in Geotechnical Engineering preferred. • Minimum 8 years of relevant geotechnical engineering design experience, including demonstrated experience leading and checking technical design work. • New York PE required, or ability to obtain New York PE within an agreed timeframe. PE licensure in New Jersey and/or Massachusetts is also desirable. • Strong technical experience in deep and shallow foundations, retaining walls, support of excavation, earthworks, slope stability, settlement analysis, ground improvement, groundwater/dewatering considerations, and underground structures. • Familiarity with relevant US codes, standards and guidance for infrastructure and building projects. • Experience planning, procuring, supervising and interpreting subsurface investigation and laboratory testing programs. • Experience with digital workflows for geotechnical data processing, calculation automation, GIS, OpenGround/gINT or similar tools. • Experience preparing and checking geotechnical calculations, design reports (including GIR, GER, GDR, GBR), drawings, specifications and construction-phase technical responses. • Experience with soil-structure interaction and numerical modelling using Plaxis 2D/3D or similar tools. • Construction-phase experience, including observation of foundation installation, support of excavation, earthworks, subgrade preparation, instrumentation and monitoring, and review of contractor submittals/RFIs. • Ability to mentor and guide junior engineers, including delegation, technical review and quality check of calculations and deliverables. • Strong written and verbal communication skills, with the ability to explain technical issues clearly to multidisciplinary teams, clients and contractors. • Experience with rail/transit, bridge, tunnel, waterfront/marine, aviation, utilities, datacenter or major redevelopment projects preferred. • Experience with NY/NJ public infrastructure clients or agencies such as MTA, MNR, PANYNJ, NYCDDC, NYCDEP, NYCEDC, Amtrak or similar preferred. • Active participation in professional organizations and local technical networks preferred. Please note that all applicants must apply directly via the job portal. What we offer you At Arup, we care about each member's success, so we can grow together. Guided by our values, we provide an attractive total reward package that recognizes the contribution of each of our members to our shared success. As well as competitive, fair and equitable pay, we offer a career in which all of our members can belong, grow and thrive - through benefits that support health and wellbeing, a wide range of learning opportunities and many possibilities to have an impact through the work they do. We are owned in trust on behalf of our members, giving us the freedom, with personal responsibility, to set our own direction and choose work that aligns with our purpose and adds to Arup's legacy. Our members collaborate on ambitious projects to deliver remarkable outcomes for our clients and communities. Profit Share is a key part of our reward, enabling members to share in the results of our collective efforts. Benefits at Work - At Arup, we have a comprehensive and valuable benefits program that works for our employees and their families while keeping costs low. These benefits provide health and welfare security for you as well as paid time off for rest and renewal. As a member of Arup, everyone shares in our success through a global profit share scheme (payments are dependent on the firm's financial performance). Our Global Profit Share Plan (paid bi-annually) provides an opportunity for you to share in the success of the Firm. As a valued employee of Arup, you can also choose to participate in our 401(k) plan with up to 10% company match to help you save for your future Flexible Working - We believe that flexible arrangements create a more inclusive way of working that supports our diversity and the wellbeing of our people. Options for alternative schedules and the ability to work outside of the office for a portion of your workweek are available New York Hiring Range - Hiring Range - The good faith base salary hiring range for this job if performed in New York is $130,000 to $150,000 per year. This range is commensurate with experience, educational background, and skill level. Benefits are not included in the base salary. Please note hiring ranges for candidates performing work outside of New York will differ.