Description

Job Purpose:

The Senior Proposal Writer is responsible for leading the development of high-impact, client-facing proposals that support revenue growth. This role partners closely with Sales, Solution Architects, and Leadership to shape win strategies, craft compelling narratives, and deliver compliant, high-quality RFP/RFI responses that differentiate CallTower in the CX, CCaaS, AI and UCaaS market.

Duties:

In the context of tenders, the Senior Proposal Writer is responsible for coordinating key activities related to the process. Their responsibilities include:

Proposal Strategy & Development

Lead end-to-end RFP/RFI responses, including strategy, messaging, and positioning

Develop win themes and value propositions aligned to client needs and competitive landscape

Translate technical solutions into transparent, compelling business narratives

Cross-Functional Leadership

Partner with Sales, Pre-Sales, Product, Legal, and Delivery teams to shape responses

Facilitate proposal strategy sessions and stakeholder alignment to meet response deadlines

Process & Content Optimization

Maintain and evolve reusable content library and templates

Drive continuous improvement of proposal processes and tools (including AI-enabled capabilities)

Oversee and manage the response process, including procurement portals, communications with customer procurement teams, and bid coordination.

Risk & Compliance

Ensure all proposals align with contractual, legal, and compliance standards

Identify and mitigate commercial and contractual risks

Communicate with federal, state,



and provincial bodies to request compliance documents

Review contract clauses and verify the conformity of proposals

The Senior Proposal Writer will also partake in managing contractual documents for the Company (scope of work, change requests, hours of bank, support contracts, subscription contracts, etc.). His/her responsibilities include:

Prepare, review, and finalize proposal content (technical, financial, compliance, corporate etc.)

Apply, evaluate, and adjust these measures as required, and consult legal counsel for review if necessary.

Implement a compliance process for all stakeholders

Review the development process and optimize it

Review SOW grids and T&C.; Make any valuable improvement when possible and automate them

Safeguard the Company’s interests by thoroughly reviewing the terms and conditions of all legal documents—including MSAs, NDAs, client contracts, freelance agreements, and Board signing authorities. Prepare comprehensive lists and detailed grids as required.

Ensure consistency of legal clauses to protect the Company

Analyze proposal T&C; and assumptions and SOW to mitigate business risks for clients, partners and suppliers





Ensure consistency between liability insurance contracts and the Company’s contractual commitments

Other duties as assigned by management

Success Measures

Improve proposal win rate and qualification effectiveness

Meet or exceed proposal turnaround SLAs

Increase reuse of standardized content and reduce cycle time

Maintain high compliance and quality standards across submissions

Qualifications

7+ years of experience in IT or consulting services as a Proposal Writer

Bachelor’s degree or 6+ years’ of relevant work experience

Excellent understanding of the different phases of IT project implementation

Ability to successfully communicate client tender objectives and their main characteristics to the delivery and sales teams through oral and written presentations

Strong interpersonal skills: capacity to work in teams of various sizes, with employees with different technical abilities and professional authority

Ability to manage and coordinate service and information requests from stakeholders with proactive means of communication

Solid knowledge of software tools such as Word, Excel, PowerPoint, Acrobat

Experience supporting enterprise SaaS / CCaaS / UCaaS deals

Proven ability to influence deal outcomes and win strategies

Experience using proposal automation tools or AI-assisted writing tools

Experience in project management is an asset

Ability to analyze and write proposals

Exceptional writing skills

Strong organizational skills, precision and great attention to detail

Fluency in English and French (spoken and written) is mandatory

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📌 Senior Proposal Writer (Ontario)
🏢 CallTower
📍 Ontario