Langan Engineering & Environmental Services

Compliance

• Direct and manage large, complex environmental engineering projects, including performing senior-level technical analysis and review
• Develop environmental permitting and regulatory strategy for a variety of industrial and construction projects
• Manage the preparation and submission of permits and compliance programs for multiple environmental media, including air, wastewater, stormwater, waste, spill prevention and storage tanks, EPCRA (Tier II, TRI)
• Prepare and submit responses to Notice of Violations and negotiate permit requirements with regulatory agencies on behalf of clients
• Conduct multi-media environmental compliance audits, gap assessments, inspections, and program reviews
• Lead and develop a team of environmental compliance staff, including hiring, coaching, training, and motivating team members
• Provide direct oversight and management of junior staff for specific project assignments
• Lead and/or assist in the preparation of proposals, including scope and fees development
• Ensure that multiple projects and tasks are delivered on time and within budget
• Manage change orders, prepare draft invoices, support project billings, and assist in payment collections
• Identify and pursue new client opportunities, expand work within existing projects, and attend develop additional work within an existing projects, and attend business development meetings and events
• Maintain membership and leadership roles in relevant industry organizations
• Coordinate other work groups across different office locations and different disciplines as needed
• Interface professionally with clients, contractors, subcontractors, staff, project personnel, and supervisors
• Collaborate as part of a multidisciplinary engineering team to support projects across US.

Environmental Practice Lead – Compliance and Permitting

Engineer

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

Project Geotechnical Engineer

• Preform environmental due diligence associated with transactions;
• Perform field inspections and environmental investigations;
• Perform air, soil, gas, groundwater sampling and remediation of contaminated properties;
• Assist with the planning and execution of field investigations by logging borings, collecting samples, performing field tests, and collecting and recording data.
• Perform routine and special calculations;
• Field oversight of remediation activities and subcontractors, ensuring compliance with job specifications;
• Identify and implement solutions to both routine and more complex field and/or laboratory problems and accurately document results;
• Communicate with supervisor on any problems encountered on project sites;
• Assist with the preparation of technical reports, specifications, and plans; data management and evaluation; and environmental assessment and remediation;
• and Perform other duties as requested.

Environmental Engineer, Scientist, Geologist

Project Manager

• Perform complex analyses for specific portions of broader engineering and environmental projects;
• Participate in the identification and pursuit of new clients, develop additional work within an existing project and attend business development meetings with new and existing clients;
• Provide direct oversight and management of junior staff for specific project assignments. Coach, train, and motivate staff assigned to Environmental projects.
• Participate in interviewing and hiring staff;
• Supervise field activities and ensure correct interpretations of findings. Ensure that data collection and laboratory analyses are completed correctly, within budget, and on time;
• Manage and deliver on multiple projects and tasks within specific budgets, schedules, and deadlines.
• Prepare progress reports and draft change orders. Prepare draft invoices, project billings, and assist in payment collections;
• Effectively organize, write, and edit reports, draft proposals, and other documents;
• Coordinate other work groups within the same or different office locations and/or within the same or different disciplines on an as-needed basis;
• Interface effectively and professionally with clients, contractors, subcontractors, staff, project personnel, supervisors, and others; and
• Perform other duties as requested.

Senior Project Manager – Environmental

Civil Engineer

• Assist with the preparation and modification of various engineering documents including reports, specifications, plans, construction schedules, cost estimates and design plans for projects using engineering and design software (AutoCAD, Civil 3D, etc.) and equipment
• Use reports, maps, drawings, engineering plans, tests, and aerial photographs to assess soil composition, terrain, hydrological characteristics, and topographical and geologic data and their impact on the planning and design of projects
• Familiarity with current local, state, and federal land use permitting is a plus
• Collaborate with team members on project tasks and assignments
• Perform other job duties as requested

Senior Civil Engineer

AI Engineer

• Design, build, and maintain production-grade backend services, REST APIs, and data pipelines in Python and/or Node.js that power AI-driven applications at scale
• Build and ship responsive, user-centered front-end applications using React and modern JavaScript, with a focus on performance, accessibility, and intuitive design
• Architect and optimize LLM-powered features on Azure OpenAI, including prompt engineering, RAG pipelines, tool/function calling, and fine-tuning, to deliver reliable, production-quality AI capabilities
• Lead rapid prototyping efforts (spikes, proofs-of-concept, and MVPs) to de-risk ideas, demonstrate feasibility, and accelerate adoption of high-impact AI capabilities
• Bridge the gap between AI model capabilities and real-world user needs, translating ambiguous requirements into well-scoped, high-impact product features
• Partner with engineers, project managers, and discipline leads across Langan to surface high-value AI integration opportunities and scope technically sound solutions
• Proactively identify and prototype automation opportunities that reduce manual burden on engineering teams and accelerate project delivery
• Communicate clearly with non-technical stakeholders, translating system performance, model behavior, and technical tradeoffs into actionable insights for leadership
• Work on multiple project timelines simultaneously
• Perform other duties as requested

• Prepares the planning, design and permitting documents of renewable energy land development and infrastructure projects in close collaboration with Project Personnel using engineering and design software (AutoCAD, Civil 3D, etc.) and equipment
• Leads tasks associated with the preparation and modification of various engineering documents including reports, specifications, plans, cost estimates and designs for projects
• Performs cost calculations and determines feasibility of projects based on the analysis of collected data
• Performs zoning, sustainability and other feasibility assessments for development projects
• Coordinates and performs field inspection services, as needed
• Writes and/or reviews draft reports, including feasibility studies, stormwater management reports, technical specifications, and utility reports
• Use reports, maps, drawings, engineering plans, tests, and aerial photographs to assess soil composition, terrain, hydrological characteristics, and topographical and geologic data and their impact on the planning and design of projects
• Collaborates with team members on project tasks and assignments
• Perform other duties as requested

Senior Civil Engineer – Renewable Energy

• Coordinate and perform the planning and permitting of traffic/transportation engineering, land development and infrastructure projects;
• Manage and deliver on multiple projects and tasks within specific budgets, schedules, and deadlines.
• Prepare progress reports and draft change orders.
• Prepare draft invoices, project billings, and assist in payment collections;
• Coordinate and work with staff to determine the feasibility of projects based on the analysis of preliminary data, and prepare and modify reports, specifications, plans, and design for projects;
• Effectively organize, write and edit draft proposals, reports and other documents;
• Participate in the identification and pursuit of new clients, learn to develop additional work within an existing project and attend business development meetings with new and existing clients;
• Provide direct oversight and management of junior staff for specific project assignments.
• Coach, train, and motivate staff assigned to Traffic/Transportation projects.
• Participate in interviewing and hiring staff;
• Interface effectively, and professionally with clients, contractors, subcontractors, staff, project personnel, supervisors and other office locations/disciplines.
• Actively participate in internal and external technical presentations and produce written articles for internal and external publications;
• Perform other duties as requested.

Senior Traffic Project Manager

Marketing

• Create graphic design art and visual materials for in-house production and external clients using a wide range of media including photography and computer aided design technology such as InDesign, Flash, Photoshop, Illustrator and Microsoft PowerPoint
• Assist with preparation of proposals and presentations
• Execute a wide range of projects for visual displays, electronic presentations, newsletters, brochures, advertisements, logos and a variety of other material used for web, publication, slide, video and multimedia presentations
• Compose, edit, and create graphic material and prepares information needed for RFQs, RFPs and other reports
• Perform other duties as requested

Marketing Intern – Summer 2026

• Lead and expand Langan’s Cultural Resources practice, including strategic planning, client development, and collaboration with office and practice leadership;
• Serve in key roles such as Principal Investigator, Project Manager, and Technical Lead on complex cultural resource projects;
• Manage a wide range of project tasks including research designs, work plans, survey strategies, reporting, data recovery, site/resource evaluations, and mitigation planning, etc;
• Prepare, oversee, and review technical documents for archaeological and/or architectural history studies; background, historic and ethnographic contexts; evaluations, regulatory analysis, etc;
• Oversee field operations, ensuring proper execution of archaeological and historic architecture surveys, excavations, monitoring, laboratory analysis, and documentation, etc;
• Interface with clients, permitting agencies, Tribal representatives, and internal team members; clearly communicate regulatory requirements and project strategies in concise, accessible terms;
• Ensure compliance with Section 106 of the National Historic Preservation Act, NEPA, state and local cultural resource regulations (including Washington DAHP and Oregon SHPO processes);
• Support proposal development, scope/fee preparation, and broader business development efforts to expand client relationships and project opportunities;
• Manage project budgets, schedules, and client expectations; oversee invoicing and financial performance of assigned projects;
• Supervise, mentor, and train staff archaeologists, architectural historians, paleontologists, and field crews; assist in staffing and recruitment as needed;
• Collaborate across disciplines and offices to support integrated environmental and land development work;
• Maintain up-to-date knowledge of regional cultural resource standards, best practices, and regulatory trends; participate in internal and external training programs;
• Promote and uphold Langan’s commitment to health and safety in both office and field environments;
• Contribute to the growth and improvement of the corporate-wide cultural resource practice in the US and internationally.

Senior Project Manager – Cultural Resources

• Assist with the planning, design and permitting of traffic/transportation engineering, land development and infrastructure projects;
• Complete traffic analysis for traffic impact studies;
• Use engineering equipment and design software (SYNCHRO, HCS, etc.) to prepare engineering and design documents;
• Apply knowledge and techniques of engineering and advanced mathematics;
• Write and/or review draft reports including traffic impact studies and parking studies;
• Perform other duties as requested.

Traffic Engineer

• Manage environmental investigation and remediation projects
• Perform complex analyses for specific portions of broader engineering and environmental projects
• Supervise field activities and ensure correct interpretations of findings
• Manage and deliver on multiple projects and tasks within specific budgets, schedules, and deadlines
• Effectively organize, write and edit draft proposals, reports and other documents
• Participate in the identification and pursuit of new clients, develop additional work within an existing projects and attend business development meetings with new and existing clients
• Provide direct oversight and management of junior staff for specific project assignments
• Coach, train, and motivate staff assigned to Environmental projects
• Participate in interviewing and hiring staff
• Coordinate other work groups across office locations and disciplines on an as-needed basis
• Interface effectively and professionally with clients, contractors, subcontractors, staff, project personnel, supervisors, and others
• Perform other duties as requested

Project Environmental Engineer

• Design earth structures, deep foundations, support of excavation and underpinning systems
• Assist project manager with field work coordination and project management support
• Scope and oversee geotechnical investigations and construction projects, and periodically perform inspections of geotechnical construction where needed
• Coordinate investigations and assist in geotechnical report writing
• Prepare standard logs and field forms, including drilling and test pit logs, field investigation dailies, and chain of custody logs
• Fieldwork is required
• Perform other duties as requested.

Senior Staff Geotechnical Engineer

• Direct and manage large, complex national-scale water and wastewater permitting and compliance projects, including senior-level technical analysis and regulatory strategy development across multiple regulatory jurisdictions;
• Deliver on multiple fast-paced projects and tasks within specific budgets, schedules, and deadlines;
• Develop regulatory and permitting strategies for municipal and industrial drinking water, wastewater, pretreatment, source water withdrawal, and reuse projects throughout the U.S.;
• Manage the preparation and submission of permit applications and compliance programs under NPDES, general permits, surface water and groundwater withdrawal permits, and water reuse programs nationwide;
• Provide regulatory oversight for Safe Drinking Water Act compliance programs for utilities and industrial clients;
• Lead national response efforts for Notices of Violation (NOVs), corrective actions, enforcement negotiations, and regulatory inspections at the local, state, and federal levels;
• Conduct and oversee on-site facility audits and multimedia environmental compliance assessments for municipal and industrial clients across diverse regulatory regions
• Support treatability studies, system upgrades, startup, retrofits, and optimization of drinking water and wastewater treatment systems;
• Lead and/or assist in the preparation of national and regional proposals, including scope development, fee estimates, teaming strategies, and execution plans;
• Ensure projects are delivered on time and within budget, including national program coordination, change management, invoicing support, and financial performance tracking;
• Identify and pursue national client opportunities, expand work within existing key accounts, and support strategic growth initiatives for the firm’s water and environmental compliance practice;
• Coordinate across multiple Langan offices and technical disciplines to support integrated water, environmental, and infrastructure projects;
• Serve as a national technical advisor interfacing with clients, regulators, contractors, attorneys, and stakeholders;
• Collaborate as part of multidisciplinary, multi-office teams supporting projects across the United States.

Senior Project Manager – Water & Wastewater Permitting, Compliance

• Coordinate and perform the planning and permitting of traffic/transportation engineering, land development and infrastructure projects
• Manage and deliver on multiple projects and tasks within specific budgets, schedules, and deadlines
• Prepare progress reports and draft change orders
• Prepare draft invoices, project billings, and assist in payment collections
• Coordinate and work with staff to determine the feasibility of projects based on the analysis of preliminary data, and prepare and modify reports, specifications, plans, and design for projects
• Effectively organize, write and edit draft proposals, reports and other documents
• Participate in the identification and pursuit of new clients, learn to develop additional work within an existing project and attend business development meetings with new and existing clients
• Provide direct oversight and management of junior staff for specific project assignments
• Coach, train, and motivate staff assigned to Traffic/Transportation projects
• Participate in interviewing and hiring staff
• Interface effectively, and professionally with clients, contractors, subcontractors, staff, project personnel, supervisors and other office locations/disciplines
• Actively participate in internal and external technical presentations and produce written articles for internal and external publications
• Perform other duties as requested