Technical Writer Assistant Jobs in Ontario (NOW HIRING)

The Opportunity:

Tetra Tech is adding a Technical Writer to our Power team based in Mississauga, ON.

In this role, you will lead and support the development of high-quality, persuasive, and compliant proposals, qualifications packages, and related business development materials. You will work closely with discipline leads, project managers and business development staff to translate complex technical information into clear, compelling content that aligns with client requirements and Tetra Tech's strategic objectives.

Why Tetra Tech:

At Tetra Tech, we are Leading with Science to solve the world's most complex challenges.  Our industry-leading experts in engineering and consulting are committed to driving positive change in communities around the world.  For over 50 years, we have been at the forefront of innovation and sustainability.  Today we stand as a market leader, offering cutting-edge solutions in water, environment, energy, and international development.  Our work has improved more than 625 million lives around the world.

Your Impact:

Join Tetra Tech to make a real difference.  Our work leverages cutting-edge technologies, advanced analytics, and the expertise of world-class scientists and engineers to create meaningful change around the world. Discover your full potential - join us to advance your career while leaving a lasting legacy.

Position Summary:

We are currently seeking a Technical Writer for our Power team. This is a new vacant position for which we are actively recruiting. To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

Essential Job Functions:

• Lead the development, writing, editing, and formatting of compelling, high-quality proposals, qualifications packages, and related business development materials.
• Work with discipline leads, project managers, and business development staff to gather information and develop clear, persuasive proposal content.
• Translate complex technical, project, and client information into concise, accurate, and client-focused written responses.
• Analyze request for proposal (RFP), request for qualifications (RFQ), and other solicitation documents to identify submission requirements, evaluation criteria, themes, and compliance needs.
• Develop proposal outlines, content plans, schedules, and compliance matrices to support on-time and complete submissions.
• Draft and tailor executive summaries, approach narratives, project descriptions, team qualifications, resumes, and other proposal sections.
• Edit and proofread proposal content to ensure consistency, clarity, professionalism, grammar, and adherence to branding and style guidelines.
• Manage document versions, filing, and internal review workflows to ensure accuracy and proper document control.
• Assist with or lead production activities including final formatting, assembly, quality checks, and submission of proposal deliverables.
• Track deadlines and help ensure all materials are completed and submitted on time.
• Provide general proposal and marketing support as needed, including meeting coordination, note-taking, and follow-up actions.

Required Qualifications:

• Bachelor's degree in English, Communications, Journalism, Marketing, Technical Writing, or a related field preferred.
• 3+ years of experience in proposal writing, technical writing, marketing communications, or a related role, preferably in a consulting, engineering, utility, construction, or power-related environment.
• Demonstrated ability to write clear, persuasive, and technically accurate content for complex proposals and business development materials.
• Strong editing, proofreading, and organizational skills with excellent attention to detail.
• Ability to manage multiple deadlines, shifting priorities, and fast-paced proposal schedules.
• Strong interpersonal skills and the ability to collaborate effectively with technical staff, project managers, and business development professionals.
• Self-starter with the ability to work independently and with minimal supervision.
• Proficiency in Microsoft Word, Excel, Outlook, and PowerPoint; experience with Adobe Acrobat and other proposal production tools is an asset.
• Familiarity with proposal best practices, RFP/RFQ response development, and document control processes is an asset.
• Experience in the power, energy, utilities, engineering, or infrastructure sectors is highly desirable.
• Strong verbal communication skills and the ability to present ideas clearly and professionally.
• Ability to remain calm under pressure and meet tight deadlines.

Physical Requirements:

• Ability to sit or stand as required and remain in a stationary position for at least 50% of the workday.
• Frequent use of hands and fingers to handle, manipulate, or feel objects, including continuous operation of a computer and other standard office equipment such as calculators, copiers, and printers.

Work Environment / Environmental Factors:

• The majority of work is performed in a professional office setting.
• Periodic travel may be required and could involve limited exposure to extreme temperatures. Travel may include air travel, during which the employee may be required to remain seated for extended periods.