Senior Staff Geotechnical Engineer

Langan provides expert land development engineering and environmental consulting services for major developers, renewable energy producers, energy companies, corporations, healthcare systems, colleges/universities, and large infrastructure programs throughout the U.S. and around the world. Employees collaborate across 50+ offices, gaining hands‑on experience that fosters career growth. The firm’s entrepreneurial culture emphasizes innovative technical solutions, robust training, knowledge sharing, community impact, workplace flexibility, carbon‑neutral office spaces, and an inclusive, supportive environment.

About the role

Senior Staff Geotechnical Engineer – Celina or Dallas, Texas. The engineer will prepare technical reports, specifications, and plans; design foundations, retaining walls, and other geotechnical aspects of construction; and partner cross‑functionally on premier land‑development projects.

Responsibilities

• Design earth structures, deep foundations, and support systems for excavation and underpinning.
• Assist the project manager with field‑work coordination and project‑management support.
• Scope and oversee geotechnical investigations and construction projects; perform periodic inspections of geotechnical construction as needed.
• Coordinate investigations and contribute to geotechnical report writing.
• Prepare standard logs and field forms, including drilling and test‑pit logs, field investigation dailies, and chain‑of‑custody logs.
• Perform required fieldwork.
• Perform other duties as requested.

Qualifications

• Bachelor’s degree in Civil or Geotechnical Engineering (required); Master’s degree in Geotechnical Engineering (strongly preferred).
• 3+ years of related geotechnical experience in investigations and construction inspections.
• FE/EIT certification (preferred).
• Office experience with investigation and field‑work coordination, geotechnical reports, and specification writing.
• Prior field experience in earthwork, driven and drilled pile construction, load testing, footings, subgrade and backfill inspection, ground improvements, retaining wall design and construction, and excavation support system design and inspection.
• Software knowledge: gINT, Slide/SLOPE/W, PLAXIS, LPILE, GRLWEAP, MSEW, SHAKE.
• Excellent written and verbal communication skills.
• Strong attention to detail with analytical, multitasking, and judgment capabilities.
• Ability to work independently and in a team environment.
• Ability to perform field work as required.
• Reliable transportation for client meetings and job‑site visits; valid driver’s license in good standing.

Benefits

• Company‑paid medical, dental, and vision coverage.
• Life insurance, short‑ and long‑term disability insurance, and paid pregnancy disability leave.
• 401(k)/Roth with company match.
• Paid time off, including parental and military leave.
• Employee referral and professional license bonuses.
• Educational reimbursement.
• Employee resource groups and flexible work schedules.
• Extensive training, wellness programs, buddy and mentoring programs, and more.