Intermediate Noise and Vibration Engineer/Specialist (Building Acoustics)

What is the role?

As an Intermediate Noise and Vibration Engineer/Specialist – Building Acoustics at LEA, you will analyze, model, and evaluate noise and vibration in buildings and infrastructure projects. You will review architectural and mechanical designs for acoustic performance, perform field measurements, prepare technical reports, and recommend practical mitigation solutions. You will collaborate with multidisciplinary teams, manage multiple projects, and ensure compliance with industry standards, Ontario regulations, and Tarion acoustic requirements, while contributing to high-quality, client-focused engineering solutions.

Why join LEA?

LEA is an employee-owned engineering consulting firm with a 72‑year history. We provide multidisciplinary engineering services across Transportation, Civil, Structures, Construction Administration, Electrical and Infrastructure Systems, and Environmental Management.

We have a strong track record of delivering high-quality, recognized projects in the Transportation & Systems Division, encompassing Noise & Vibration, Transportation Planning, Traffic Engineering, Transportation Design, Transportation Safety, Intelligent Transportation Systems, Infrastructure Security Systems, and Traffic Signal and Street Lighting.

At LEA, we are committed to producing high-quality, client-focused engineering solutions while supporting the professional growth and self-realization of our people. As an employee-owned company, every team member contributes directly to LEA’s continued success and growth.

We’re confident that by joining LEA, you can discover and realize your full career potential because LEA:

• Has been recognized as a Greater Toronto Top Employer and Canada’s Top Employer for Young People for 2025 & 2026, highlighting our commitment to fostering an outstanding workplace culture and supporting the next generation of professionals.
• Recruits high-performing, motivated individuals who strive to achieve the highest level of technical excellence and quality.
• Is an Employee-owned company, and almost half of our employees are shareholders.
• Offers a competitive total rewards package of salary, substantial bonuses, benefits and other perks.
• Is continuously involved in many exciting and challenging projects throughout Ontario and around the world.
• Allows for a collaborative hybrid work environment with flexible hours to maintain a healthy work-life balance.
• Cultivates team companionship and collaboration, offering a variety of social events aimed at fostering relationships across the company, including sports leagues, game nights, special events, and volunteer/charitable opportunities.
• Is an organization that is committed to achieving our Environmental, Social & Governance objectives through our various committees.
• Prioritizes mentorship, training, and rotational assignments for knowledge advancement and career growth.
• Has an entrepreneurial spirit as an employee-owned company, with continuous growth and expansion, taking part in meaningful projects.

In this role, your duties and responsibilities will include:

• Review architectural, mechanical, and electrical drawings/shop drawings for acoustic integrity (e.g., partition terminations, penetrations sealing, vibration isolation details); provide detailed recommendations and working drawings as needed.
• Prepare technical analyses using commercial software packages (e.g., Cadna/A, TNM, SoundPlan, STAMSON, INSUL) and proprietary in-house tools for environmental noise/vibration predictions, impact assessments, mitigation design, and building acoustics evaluations (e.g., partition STC/ASTC/IIC modelling, HVAC/equipment noise propagation, vibration isolation).
• Complete high-quality technical reports with minimal supervision, including baseline assessments, compliance evaluations, mitigation recommendations, Acoustic Design Reviews, Noise Impact Studies (NIS), acoustic specification documents, Vibration Impact Studies, Construction Noise and Vibration Management Plans, and any reporting required to support environmental approvals/permitting, building code compliance, and Tarion warranty processes.
• Communicate technical findings, potential impacts, and recommended mitigation measures (e.g., partition upgrades, silencer specifications, vibration isolators) clearly to internal teams, clients, regulatory agencies, builders, and stakeholders (e.g., via meetings, presentations, or public consultations).
• Collaborate closely with project managers, architects, mechanical/electrical engineers, and multidisciplinary teams throughout all phases of project delivery, from initial scoping and proposal development to detail design, construction, and warranty/commissioning.
• Manage multiple active projects simultaneously, balancing priorities to meet schedules, budgets, and deliverables.
• Prepare high-quality proposals for private clients (e.g., developers, architects) as well as responses to larger-scale Requests for Proposal (RFP) and Expressions of Interest (EOI).
• Stay current with industry standards, software advancements, regulatory changes (including Tarion updates), and best practices to ensure compliance and innovative solutions in building acoustics.
• Conduct noise and vibration field measurements at industrial, residential, institutional, transportation, and construction sites, including setup, calibration, data collection, processing, interpretation, and specialized building acoustics testing (e.g., ASTC field testing on partitions per ASTM E336, background noise for NC criteria, mock-up partition evaluations, and post-construction commissioning to verify acoustic performance).
• Participate in professional development opportunities, including training, workshops, seminars, and involvement in professional associations, to maintain and enhance industry knowledge and skills.
• Support additional assignments within the Transportation & Systems Division.

The qualifications you need:

• Bachelor's degree (or higher) in Engineering (Acoustical, Mechanical, Civil, Environmental, or related field), Physics, Environmental Science or equivalent.
• Eligibility for Professional Engineer (P.Eng.) designation in Ontario (or current registration/eligibility with PEO) upon completion of required experience.
• Minimum of 3–6 years of relevant consulting experience in environmental noise/vibration and building acoustics assessments (e.g., residential, institutional, mixed-use, shelter/transitional housing developments; transportation, industrial, or construction sectors).
• Strong demonstrated expertise in building/architectural acoustics, including:
  1. Experience in the development and selection of acoustic specifications for sound transmission between spaces (e.g., residential/family units to administrative/common areas), background noise levels, Speech Transmission Index (STI), and speech privacy;
  2. Understanding of key criteria from internationally recognised design criteria and guidelines (ANSI, ASTM, ASHRAE, ISO, etc.) and metrics, including STC (Sound Transmission Class), ASTC (Apparent Sound Transmission Class), NIC (Noise Isolation Class), NC/PNC/RC (Noise Criteria/Room Criteria), IIC (Impact Insulation Class), STI (Speech Transmission Index), RT60 (Reverberation Time), etc.;
  3. Proficiency in completing Acoustic Design Reviews for partitions, floors, and ceilings (assessing/recommending STC/ASTC/IIC ratings; identifying flanking paths; ensuring compliance with OBC, Tarion Builder Bulletin 19R requirements, and Tarion warranty acoustic performance standards);
  4. Familiarity with the fundamentals of indoor HVAC and mechanical/electrical noise prediction and attenuation (airborne, duct-borne, and structure-borne transmission; NC/RC/PNC criteria; vibration isolation for equipment such as elevators, pumps, boilers, chillers, and rooftop units); and
  5. Room acoustics modelling and treatment (e.g., RT60, acoustic absorption and silencing)
• Strong client-facing skills, with the ability to collaborate effectively across multidisciplinary teams (architects, mechanical/electrical engineers, developers) to develop practical, project-specific acoustic solutions
• Solid understanding of environmental noise and vibration principles, including:
  1. Predictive roadway and railway noise and vibration models (e.g., FTA, STEAM, TNM, ORNAMENT).
  2. Fundamental sound and vibration propagation algorithms
• Proficiency with industry-standard modelling software such as Cadna/A, STAMSON, TNM, INSUL, SoundPLAN, EASE or equivalent tools.
• Comprehensive knowledge of Ontario environmental legislation and guidelines, including but not limited to the Environmental Protection Act, MECP Noise Pollution Protocol (NPC) Publications (e.g. NPC-300), municipal noise bylaws, and the MTO Environmental Guide for Noise.
• Familiarity with sound level meters (SLMs), dosimeters, noise and vibration monitors, and data acquisition systems (e.g., Brüel & Kjær, Sigicom, Larson Davis); hands-on experience conducting sound level and vibration measurements at both source and receptor locations, including long-term monitoring, attended surveys, compliance with ISO/IEC standards, and field acoustic testing (e.g., ASTC per ASTM E336, NIC, background NC measurements).
• Strong writing and presentation skills, with proven ability to prepare clear, concise technical reports (e.g., Acoustic Design Reviews, Noise/Vibration Impact Study reports, specification documents) and communicate complex findings to non-technical audiences

Assets (Nice to Have)

• Programming or scripting skills (e.g., Python, MATLAB) for data processing, automation, or custom acoustic analysis.
• Experience with advanced signal processing techniques and tools.
• Familiarity with additional modelling tools for rail transit, international standards (ISO 1996, ANSI), or advanced room acoustics simulation (e.g. EASE, RAP-ONE II).
• Hands-on experience with Tarion-compliant acoustic field testing, certification processes, or warranty investigations in residential/institutional developments.
• Previous involvement in large-scale environmental impact assessments (EIAs), transit projects, renewable energy developments, or institutional/healthcare/shelter acoustic designs.
• Membership in professional organizations (e.g., CAA, INCE, ASA).

Total Rewards at LEA

At LEA, we offer a total rewards package designed to support your financial well-being, health, and work-life balance, along with unique opportunities for shareholding and long-term share value growth.

• Annual Salary Range: $68,000 – $82,000
• Annual Salary Range: We are open to discussing compensation and will consider your salary expectations for the role’s responsibilities.
• Discretionary Profit Sharing: LEA offers opportunities to receive a bonus payment from the profit-sharing program.
• Shareholding: Unique opportunity to become a shareholder in the firm, have a voice in governance, and benefit from long-term share value growth.
• Group Health Benefits: Comprehensive coverage including prescription drugs, dental, vision, STD, LTD, life insurance, critical illness, wellness account, travel coverage, and virtual health services.
• Retirement & Savings Plans: RRSP with employer matching and TFSA options for tax-free growth.
• Personal Days: 7 days of flexible paid time off that can be used as needed, including for personal matters or vacation.
• Hybrid & Flexible Work Model: LEA operates in a hybrid environment with flex hours to ensure flexibility, safety, and well-being. Periodic attendance at our Markham/Toronto office is expected for in-person learning and collaboration.
• Social Club: LEA has a unique, employee-co-funded social club with an annual budget of approximately $50,000 to host social events and activities that bring employees together. Many events welcome guests, with the social club covering part or all of the guest costs.

Type of Position:

Full-Time Permanent

The work arrangement:

LEA operates in a hybrid environment to ensure flexibility, safety, and the well-being of everyone. Valid driver's license and willingness to travel for field work within Ontario (and occasionally beyond), including construction site inspections and commissioning testing.

LEA's Commitment to Inclusive Hiring and Equal Opportunity:

LEA Consulting Ltd. is proud to be an equal employment opportunity employer, with Diversity, Equity, and Inclusion (DEI) embedded in all strategic planning and operational activities. As part of our commitment to fair representation and equitable access to opportunities, we encourage applications from underrepresented groups, including Indigenous peoples, LGBTQ2S+ individuals, newcomers, neurodiverse individuals, persons with disabilities, racial and ethnic minorities, refugees, veterans, and women.

We evaluate all qualified candidates based on their skills and experiences, without regard to factors such as age, colour, conviction for an offence for which a pardon has been granted, disability, family status, gender identity or expression, genetic characteristics, marital/family status, national origin, protected veteran status, race, religion, sex, sexual orientation, or any other status protected under the Canadian Human Rights Act.

Accessibility:

LEA is committed to providing an inclusive and accessible experience for all candidates. If you require accommodations during any stage of the recruitment or interview process, please contact People@LEA.ca. We remain committed to ensuring that accommodations are available and supported throughout employment.

AI Disclosure:

We do not use Artificial Intelligence (AI) tools to screen, assess, or select applicants at any stage of the hiring process for this position.

Vacancy Status:

This position is an existing vacancy.

Apply and stay connected with LEA:

We appreciate your interest in joining LEA! If this role aligns with your experience, we would love to hear from you. While we’ll only be reaching out to candidates selected for an interview, we encourage you to apply again when a suitable opportunity arises. Stay connected with us on LinkedIn, Facebook, Instagram, Twitter, and YouTube.