Human Resources Administrator (Contract) in Cambridge

Come Build Your Career at Aecon! As a Canadian leader in infrastructure development, Aecon is safely and sustainably building what matters for future generations to thrive! We lead some of the most impactful infrastructure projects of our generation, at the forefront of transformational change in transportation and energy, and partnering every day to build, connect, power, and strengthen our communities.

At Aecon, you can count on:

• Safety Always. Our number one core value. If we can’t do it safely, we don’t do it at all.
• Integrity. We lead by example, with humility and courage.
• Accountability. We’re passionate about delivering on our commitments.
• Inclusion. We provide equitable opportunities for everyone.

We lead the infrastructure industry with purpose, and our people are at the heart of everything we do. So, we invest in our people, just like they invest in us!

At Aecon we:

• Ensure you and your family receive the services needed to support your mental, emotional, and physical well-being.
• Believe in helping you build your career through our Aecon University and Leadership Programs.
• Are committed to supporting and investing in inclusive work environments, through initiatives like Equity, Diversity & Inclusion training, our Aecon Women in Trades and Aecon Diversity in Trades programs, and our Employee Resource Groups (ERGs) to ensure we are building inclusion into every aspect of our culture at Aecon.
• Are a leader in sustainable construction. With a strong commitment to operating responsibly by minimizing our impact on the environment and surrounding communities.

Our business success relies on strong execution and continuous improvement – driven by the diversity, expertise and teamwork of our people. We’re always searching the globe for innovative, collaborative minds to join our best-in-class Aecon community!

What is the Opportunity? The Human Resources Administrator provides high-volume, detail-oriented HR administrative support with a primary focus on onboarding, payroll coordination, and HRIS/organizational maintenance. This role ensures timely, accurate employee lifecycle transactions and partners with internal stakeholders to improve and standardize onboarding processes, documentation, and templates across the team. This is a 15-month contract opportunity.

What You'll Do Here:

• Onboarding & Offboarding Administration Coordinate end-to-end onboarding activities for new hires, ensuring all required documents, approvals, and pre-employment requirements are completed accurately and on time. Initiate and track onboarding tasks in the HRIS and related systems; ensure completeness of new hire records prior to Day 1. Coordinate first-day readiness with hiring managers and cross-functional partners (e.g., IT, Security/Site Access, Payroll) to support a smooth employee experience. Support offboarding/termination administration by coordinating required documentation and system transactions, as applicable.
• Payroll Coordination & Employee Transactions Prepare and submit payroll-impacting transactions by established deadlines (e.g., new hires, job changes, pay changes, organizational/position changes, leaves, and terminations). Partner with Payroll to resolve issues, answer routine inquiries, and support timely corrections where needed. Maintain accurate documentation and records to support auditability and compliance.
• HRIS, Organizational Maintenance & Data Integrity Maintain accurate employee and organizational information in the HRIS (e.g., org structure updates, position/seat maintenance, and employee record changes). Complete regular data quality checks to ensure accuracy and consistency of HR records; escalate issues and recommend corrective actions. Generate and maintain trackers and basic reports to support onboarding volume, status, and outstanding actions.
• Process Improvement, Documentation & Standardization Partner with the HRBP/Specialist (Process Improvement lead) to implement and embed improved onboarding processes over the next year (e.g., updated forms, SOPs, templates, and trackers, New Formstacks). Identify opportunities to reduce rework, improve cycle time, and strengthen controls within HR admin workflows; document recommendations and support implementation. Create and maintain standardized templates (e.g., letters, job descriptions, onboarding communications) and support standardization of existing job descriptions.
• HR File & Records Management Lead clean-up and re-organization of the shared HR drive to improve efficiency, findability, and version control. Establish a simple, consistent folder structure and naming conventions; remove outdated duplicates and archive content appropriately. Ensure HR documentation is stored in the correct location and maintained in line with confidentiality and data protection expectations.

What You Bring to the Team:

• Post-secondary education in Human Resources, Business Administration, or a related field (or equivalent experience).
• 1-2 years of experience in an HR Administrator/Coordinator or HR operations role, supporting onboarding and HR transactions.
• Strong working knowledge of HRIS transactions and data entry; SAP/SuccessFactors experience is an asset.
• Proficiency in Microsoft Office (Outlook, Word, Excel); comfort working with trackers, shared drives, and templates.
• Demonstrated ability to handle sensitive/confidential information with discretion and professionalism.

Key Competencies:

• Highly detail-oriented with a strong quality and accuracy mindset.
• Strong organization and time management; able to manage high volume and competing deadlines.
• Customer-service oriented with strong written and verbal communication.
• Continuous improvement mindset; able to document and standardize processes.
• Strong stakeholder management and ability to partner across teams.

Reason for vacancy: Replacement. The expected salary range for this opportunity is $50,000-$56,000.

Aecon fosters diversity, inclusion and belonging within and across our organization. We welcome all to apply including, women, visible minorities, Indigenous peoples, persons with disabilities, and persons of any sexual orientation or gender identity.

We are committed to adhering to the objectives and requirements outlined in the Accessible Canada Act (ACA), and to meeting the accessibility needs of persons with disabilities in a timely manner. Through the implementation of the requirements of the ACA and its applicable regulations, appropriate accommodations will be provided upon request throughout the interview and hiring process.

As part of our commitment to fair and transparent hiring practices, Aecon may use artificial intelligence (AI) tools to assist in screening and reviewing candidates. These tools are applied responsibly and in accordance with applicable privacy laws and Aecon’s AI Usage Policy. All final decisions are made by qualified Aecon team members.