Proposal Development Specialist

We are seeking a highly organized and detail-oriented Proposal Development Specialist to join our Building Services team in our Vaughan office and be an integral part of delivering continued success within this department. 

The Proposal Development Specialist is responsible for leading and supporting the full proposal and pursuit lifecycle while actively contributing to client strategy and business development initiatives.

Why This Role Matters to Modern Niagara  

This position plays a key role in supporting client relationships and contributing to continuous improvement across all pursuits. This role goes beyond traditional proposal coordination by partnering with leadership, operations, and account teams to shape win strategies, support strategic planning discussions, prepare and participate in business reviews, and lead or support client debriefs.

Key Impact / Purpose  

• Active participation and contribution in business reviews and client debriefs


• Demonstrated improvement in proposal quality, win rates, and internal processes


• Effective coordination across teams, with stakeholders reporting clear communication and alignment


• Contribution to lessons learned and knowledge-sharing initiatives that improve future pursuits

Duties and Responsibilities:   

• Proposal Management: Coordinate and proposal preparation, review, and submission of high-quality proposals, ensuring compliance with RFP requirements, deadlines, and organizational standards with final approvals provided by leadership.


• Strategic Contribution: Contribute input and analysis to pursuit planning, leadership-led go/no-go decision processes, win strategy sessions, and client-focused discussions to support business growth.


• Client Engagement: Support client-facing business reviews and post-submission debriefs, as part of the pursuit or account team and contributing actionable insights.


• Cross-Functional Collaboration: Work closely with operations, engineering, project management, and account teams to gather inputs, coordinate responses, and align on .


• Process Improvement: Identify and opportunities to enhance proposal quality, efficiency, and success rates, including lessons learned and knowledge sharing across the organization.


• Communication: Serve as a clear and consistent point of contact for internal teams and clients regarding proposal-related items, ensuring all stakeholders are informed of deadlines, updates, and critical information.


• Compliance and Quality Assurance: Ensure all proposals and client communications comply with legal, contractual, and internal governance standards.

Must haves:     

• Post-secondary education in Business, Marketing, Communications, Engineering, or a related field, or equivalent professional experience demonstrating successful proposal development, client engagement, and business development responsibilities

• 3-5 years of experience in proposal writing, pursuits, or business development within construction, building services, engineering, or technical services


• Demonstrated experience coordinating the full proposal lifecycle, including RFP analysis, compliance, coordination, and submission


• Proven ability to contribute input and support strategic discussions, win-strategy sessions, and go/no-go decisions


• Experience preparing for and participating in client business reviews and post-award or post-loss debriefs as part of the team


• Strong understanding of RFP compliance requirements, procurement portals, and submission protocols


• Excellent written and verbal communication skills, with the ability to engage confidently with senior leadership and clients


• Strong organizational skills with the ability to manage multiple concurrent pursuits and competing deadlines


• Proficiency in Microsoft Office (Word, Excel, PowerPoint) and proposal management tools

Nice to haves:  

• Experience in HVAC, mechanical, electrical, or integrated building services environments


• Familiarity with formal proposal governance frameworks


• Experience supporting business development activities, market positioning, or client account planning


• Experience facilitating or documenting lessons learned and continuous improvement initiatives

This is a new position. Expected annual compensation; $60,000 - $70,000

Modern Niagara offers a competitive total compensation package including:   

• Performance based bonus opportunities 


• Defined Contribution Pension Plan with a generous employer contribution  


• Flexible Health and Dental benefits with tiered options to meet the needs of you and your family  


• An annual health spending account to support your overall wellness  


• 24/7 confidential support through our Employee and Family Assistance Program with access to comprehensive resources and professional services  


• A competitive vacation package with additional vacation granted throughout your tenure with the organization.  


• Employer Paid Parental Leave Top Up  


• Annual Community Day dedicated to volunteering and giving back to the communities where we live and work  


• Corporate Discounts through various vendors across Canada for programs such as fitness, mobile phones, travel, home and auto insurance and many others  

Here at Modern Niagara, because we know our people are the best in the industry, we pride ourselves on providing a total compensation package that rewards employees for their hard work and supports employees and their families in their overall wellbeing.   

About Modern Niagara  

Who We Are 

Modern Niagara helps building owners, managers, and general contractors meet the mechanical, electrical, integrated building technology, and building services needs of their buildings across Vancouver, Calgary, Edmonton, Toronto, Southwestern Ontario, and Ottawa. 

We are committed to having a positive and meaningful impact on Canada’s infrastructure — and on the communities where we live, learn, work, and heal. We build for life. 

Our Culture & Values 

We value passion, initiative, determination, professionalism, and teamwork. Health and safety are embedded in everything we do, and our award-winning safety culture consistently performs well above industry standards. 

Diversity, Equity & Inclusion at Modern Niagara 

We are committed to building a diverse, equitable, and inclusive organization where everyone has access to opportunity, feels a sense of belonging, and can thrive. We actively work to remove barriers faced by members of equity-seeking groups (including women, Indigenous, Black, racialized, 2SLGBTQIA+ people, people with disabilities, and newcomers to Canada) in the construction industry. We encourage applications from candidates of all backgrounds and lived experiences and are committed to a barrier-free hiring process. 

If you require accommodation at any stage of the recruitment process, please contact us at  View email address on jobs.jobcopilot.com so we can make appropriate arrangements. 

We appreciate every applicant’s interest in joining Modern Niagara. Only those selected for an interview will be contacted.