Jobs at Thornton Tomasetti

Graduate Engineer supporting Applied Science consulting projects involving thermo-fluids, technical safety, fire and explosion modeling, hazard and risk assessments, heat transfer, facility siting, and failure analysis. The role requires engineering problem-solving, technical writing, client communication, IT proficiency, and willingness to learn new applications. Work contributes to decarbonization initiatives across infrastructure, energy, industrial, marine, and transportation projects.

Support Midwest offices by preparing RFQ/RFP responses, proposals, and marketing collateral. Organize and format resumes, project sheets, and presentations, maintain branding consistency, and collaborate with technical staff to present firm capabilities. Some travel required.

Mechanical Engineer supporting machinery analysis and design for large operable systems and intricate mechanisms. Responsibilities include CAD modeling, technical writing, field observations, industry code research, troubleshooting, technical reporting, and collaboration with senior engineers. The role requires a Mechanical Engineering degree, FE exam completion, CAD proficiency, strong communication and analytical skills, and willingness to travel occasionally for field work.

Supports forensic structural investigations by documenting field conditions, collecting data, assisting with structural evaluations, preparing technical reports and exhibits, and collaborating on repair or mitigation solutions. The role provides hands-on experience investigating structural failures, damage, and performance issues across buildings, infrastructure, and specialty structures.

Prepares general ledger analyses, journal entries, financial management reports, and complex financial reporting for global entities. Reviews financial data, resolves reporting inquiries, monitors internal controls, and supports accounting system enhancements, audits, regulatory filings, and special projects. The role requires strong analytical, organizational, communication, and problem-solving skills, along with the ability to work independently and collaboratively.

Engineer Intern supporting façade engineering projects, including structural analysis, design, detailing, and performance evaluation of curtain walls, cladding systems, and façade components. Responsibilities include reviewing wind, seismic, and thermal criteria; preparing drawings, specifications, and BIM documentation; collaborating with engineers, architects, and consultants; and assisting with constructability reviews, mock-up testing, and façade performance evaluations.

Mechanical Engineer Intern in the Forensics Practice assisting with HVAC and building systems investigations. Responsibilities include documenting field conditions, collecting data, evaluating system performance and failure modes, preparing technical reports and exhibits, and collaborating on repair or mitigation solutions. The role is designed for a current mechanical engineering student interested in building systems and forensic problem-solving.

Leads forensic structural engineering evaluations and end-to-end project delivery. Provides expert guidance on complex structural challenges, manages multidisciplinary teams, mentors engineers, strengthens client relationships, supports business development, and contributes to firm strategy. The role requires advanced technical judgment, project leadership, client management, and professional engineering licensure.

Manages project billing operations, including project setup, invoice preparation, timesheet review, billing documentation, discrepancy resolution, account reconciliation, collections support, and financial reporting. Collaborates with project managers and clients to ensure accurate, compliant, and timely invoicing. Supports accounting projects and maintains project records in accounting systems.

Support electronic security design for facilities and campuses, including access control, video surveillance, intrusion detection, infrastructure coordination, and technical documentation. Assist with reports, drawings, device schedules, technology studies, field surveys, and construction-phase activities. Collaborate with architects, engineers, IT stakeholders, and physical security specialists while developing foundational knowledge of low-voltage cabling, power, and networks. The intern will also participate in risk-based security planning and may work toward obtaining a U.S. security clearance.

Manage Thornton Tomasetti’s firmwide Communities of Practice program across technical and business topics. Responsibilities include developing governance, supporting community leaders, increasing participation, coordinating communications, curating knowledge, administering budgets, managing collaboration platforms, tracking program health, and reporting impact. The role requires facilitating cross-functional communities, translating expert knowledge into reusable content, coordinating events and initiatives, and improving the operating model through data and feedback.

Provides office administration and project support for the Romsey office and Protective Design & Security practice. Responsibilities include coordinating facilities, supplies, visitors, meetings, events, records, invoices, expenses, project documentation, domestic and international travel, and security administration. The role requires discretion when handling confidential information, strong organization, effective communication, and proficiency with Microsoft Office.

Provide specialist thermofluids and CFD engineering across energy, infrastructure and defense projects. Lead teams and projects, develop business opportunities, interface with clients, present results, prepare proposals, and design or improve engineering systems throughout their lifecycle.

Lead and grow the façade engineering practice in Los Angeles, oversee design consulting and forensic investigations, manage project strategy, resourcing, finances, quality assurance, client relationships, business development, and contribute to company standards and leadership.

Partners with senior leaders on talent strategy, organizational design, workforce planning, employee relations, compensation, performance management, and culture initiatives. Coaches managers, leads sensitive employee investigations and termination processes, supports talent calibration and organizational change, and delivers leadership training. Uses HR metrics, HR technology, and AI tools to inform workforce decisions and improve employee experience across a matrixed organization.

Develop and maintain Tekla Structures plugins, tools, and custom applications for engineering and design teams. Create computational solutions, engineering calculations, reporting automation, and software customizations using C# and .NET. Collaborate with project leaders and CORE Studio development teams while supporting applications used across the firm. The role also involves working with Tekla, Revit, Rhino, Grasshopper, and related APIs and SDKs.

Lead seismic engineering and structural dynamics projects for nuclear safety-related structures, including foundations and soil-structure interaction. Manage complex analyses, deliver projects, support business development, engage clients, and guide junior engineers. Work may also involve blast response, fatigue and failure assessment, probabilistic analysis, and numerical simulation.

Assist with field investigations of electrical systems, document conditions, collect data, evaluate system performance and failure modes, prepare technical reports and legal exhibits, and collaborate with multidisciplinary teams on repair or mitigation solutions.

Manages global learning and organizational development programs, including needs assessments, instructional design, facilitation, train-the-trainer initiatives, learning content development, Workday Learning administration, data analysis, and continuous program improvement. Collaborates with subject matter experts, senior leaders, HR partners, and international stakeholders, with particular focus on Asia-Pacific teams.

Manage global learning and organizational development programs, including needs assessments, instructional design, content development, facilitation, train-the-trainer initiatives, accreditation coordination, and continuous improvement. Administer learning content, data, and processes in Workday, while providing program logistics, analysis, and administrative support. The role requires collaboration with international stakeholders, subject matter experts, senior leaders, and HR teams, with a focus on Europe and complex professional-services environments.