{"id":1554449,"url":"https://alion.io/job/aecom-engineering-intern-tunnelling-underground-infrastructure","title":"Engineering Intern – Tunnelling & Underground Infrastructure","company":{"id":3394,"name":"AECOM","domain":"aecom.com","url":"https://alion.io/company/aecom","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"B","score":82,"open_postings":440,"ghost_share":0,"stale_share":0.716,"repost_share":0,"time_to_fill_p50_days":40,"computed_at":"2026-10-06T05:45:30Z"}},"role":"Early Careers","role_family":"Early Careers","seniority":"intern","employment_type":"internship","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Markham, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":25,"max":35,"currency":"CAD","period":"hour","gross":null,"usd_annual":50000},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":true,"relocation_package":false,"has_equity":true,"technologies":[{"name":"Microsoft Office","optional":true}],"status":"live","first_seen_at":"2026-09-29T19:01:33Z","employer_posted_date":"2026-09-29","last_verified_at":"2026-10-06T23:35:25Z","board_verified":true,"closed_at":null,"days_open":7,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":7},"description":"Work with Us. Change the World.\nAt AECOM, we're delivering a better world. Whether improving your commute, keeping the lights on, providing access to clean water, or transforming skylines, our work helps people and communities thrive. We are the world's trusted infrastructure consulting firm, partnering with clients to solve the world’s most complex challenges and build legacies for future generations.\nThere has never been a better time to be at AECOM. With accelerating infrastructure investment worldwide, our services are in great demand. We invite you to bring your bold ideas and big dreams and become part of a global team of over 50,000 planners, designers, engineers, scientists, digital innovators, program and construction managers and other professionals delivering projects that create a positive and tangible impact around the world.\nWe're one global team driven by our common purpose to deliver a better world. Join us.\n AECOM is seeking a passionate, skilled and innovative Engineering Intern to support the delivery of major tunnelling and underground infrastructure projects across Canada. The successful candidate will support the planning, design, analysis, and construction of complex underground works, including transportation tunnels, shafts, caverns, and underground stations. This is a new position.\nThis position provides an opportunity to work with experienced geotechnical and tunnel engineers on some of Canada's largest infrastructure projects, while developing practical expertise in rock mechanics, geological engineering, geotechnical analysis, and underground construction.\nAt AECOM, you will join a global team of 50,000+ professionals driven by a shared purpose: delivering a better world. Our work improves mobility, resilience, clean water access, and community connectivity across Canada.\nKey Responsibilities\nSupport rock engineering and geotechnical design activities for tunnels, shafts, caverns, and underground structures.\nAssist in the interpretation of geological, hydrogeological, and geotechnical investigation data.\nPerform engineering calculations related to excavation stability, ground support, and rock mass characterization.\nAssist with numerical modelling and analytical assessments of underground excavations.\nSupport preparation of engineering reports, design memoranda, drawings, specifications, and technical documentation.\nAssist with tunnel and shaft support design, including rock bolts, dowels, shotcrete, lattice girders, steel sets, and reinforced linings.\nParticipate in constructability reviews and geotechnical risk assessments.\nReview and organize site investigation data, borehole logs, laboratory testing results, and geological mapping records.\nAssist with construction monitoring programs and interpretation of instrumentation data.\nParticipate in site visits and field inspections, including geological mapping and excavation observations under supervision.\nCollaborate with geotechnical, structural, civil, and tunnel engineering teams.\n Minimum Requirements\nCandidate must be pursuing a Bachelor’s degree in Civil Engineering, Geotechnical Engineering, Mining Engineering, Geological Sciences, Rock Engineering or related discipline, and must have completed at least 3 years of study. \nPreferred Qualifications\nStrong academic background and/or coursework in geotechnical engineering, rock mechanics, engineering geology, soil mechanics, underground construction, or related areas.\nCoursework, research, or project experience related to rock mechanics, tunnel engineering, engineering geology, geotechnical engineering, or numerical modelling is an asset.\nPrevious co-op, internship, research, field, or project experience related to geotechnical engineering, mining, tunnelling, or underground infrastructure is considered an asset.\nInterest in underground excavations and rock engineering, with basic knowledge of rock mass behaviour, excavation stability, and ground support concepts for tunnels, shafts, caverns, or other underground structures.\nFamiliarity with rock mass classification systems such as Rock Mass Rating (RMR), Q-System, or Geological Strength Index (GSI) is an asset.\nBasic knowledge of underground excavation methods, such as Tunnel Boring Machine (TBM) tunnelling, drill-and-blast excavation, Sequential Excavation Method (SEM/NATM), or shaft construction, is preferred.\nExposure through coursework, research, or practical experience to numerical modelling or geotechnical software such as Rocscience applications (RS2, RS3, DIPS), FLAC2D/FLAC3D, PLAXIS, GeoStudio, UDEC, or 3DEC is an asset.\nExperience or coursework involving geological logging, drill core interpretation, site investigation data, or assessment of geotechnical information is desirable.\nExposure to GIS, BIM, 3D geological modelling tools, or geotechnical instrumentation and monitoring data is considered an asset.\nStrong written and verbal communication skills, proficiency with Microsoft Office applications, and the ability to work effectively as part of a multidisciplinary team.\n Sponsorship is not available for this position\nRelocation assistance is not available for this position\nAt AECOM, we are committed to maintaining a secure and trustworthy recruitment process and take any fraudulent hiring activity seriously. To support this commitment, all newly hired employees are required to attend an in-person Day 1 onboarding at an AECOM office location as a condition of employment.\nAbout AECOM\nAECOM is proud to offer comprehensive benefits to meet the diverse needs of our employees. Depending on your employment status, AECOM benefits may include medical, dental, vision, life, AD&D, disability benefits, paid time off, leaves of absences, voluntary benefits, perks, flexible work options, well-being resources, employee assistance program, business travel insurance, service recognition awards, retirement savings plan, and employee stock purchase plan.\nAECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle - from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2025. Learn more at aecom.com.\nWhat makes AECOM a great place to work\nYou will be part of a global team that champions your growth and career ambitions. Work on groundbreaking projects - both in your local community and on a global scale - that are transforming our industry and shaping the future. With cutting-edge technology and a network of experts, you’ll have the resources to make a real impact. Our award-winning training and development programs are designed to expand your technical expertise and leadership skills, helping you build the career you’ve always envisioned. Here, you’ll find a welcoming workplace built on respect, collaboration and community - where you have the freedom to grow in a world of opportunity.\nAs an Equal Opportunity Employer, we believe in your potential and are here to help you achieve it. All your information will be kept confidential according to EEO guidelines. Artificial intelligence will be used to support the screening, assessment, and selection of applicants for this role. 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