We are seeking a Senior Software Engineer to support, enhance, and modernize a Microsoft-based technology stack that serves multiple business teams and customers. This role requires a hands-on engineer who can work directly with stakeholders, understand business processes, translate needs into practical technical solutions, troubleshoot complex issues across both modern and legacy systems, and thoughtfully apply AI tools to improve development, analysis, documentation, and operational support, including a practical understanding of how modern AI/LLM-based solutions are structured and integrated into applications.
The ideal candidate is comfortable balancing new development with day-to-day production support, root-cause analysis, system improvements, clear communication with business partners, and a proven track record leveraging AI toolsets to improve software delivery, analysis, documentation, and operational efficiency.
Communication skills are critical to this position, and this person must be able to establish rapport and work through issues with business users when identifying solutions to business problems.
Typically, a mosaic is where all the pieces fit together nicely. That’s not us. This Mosaic is where every piece stands out. That’s because each person at our agency brings their own, unique set of skills to every brief, build, interaction, reaction, design and idea.
As part of the Acosta Group, Mosaic is one of the original marketing agencies who specialize in interactions, experience isn’t just what we have, it's what we create. With 3,000+ team members and hubs in Toronto and Dallas, we’ve spent over 35 years bringing brands to life through experiential marketing, integrated commerce campaigns, and field sales strategies that drive real behavior change.
From awareness, to earned, brand equity, consideration, and sales — we approach every project with people in mind, regardless of the channel or discipline. The result is an idea that can spark emotion and create action — whether it’s a sale or a smile. We celebrate bold thinking and embrace curiosity as we shape what’s next.
Acosta Group is an equal opportunity employer and will ensure that applicants with disabilities are provided with reasonable accommodations. If reasonable accommodation is needed, please contact AskHR@acosta.com. Be sure to include "Applicant Accommodation" in the subject of your email to expedite the request.
Acosta Group believes in good faith that the minimum and maximum annual salary or hourly compensation range for this opportunity is accurate and reasonable at the time of posting.
AI and Automated Decision-Making Notice
We use artificial intelligence (AI) tools to help screen and/or assess applications for this role. These tools analyze information you provide (for example, your résumé or answers to application questions) to support our hiring team’s review. All hiring decisions include human judgment.
If you have questions about our use of AI in recruitment or require an accommodation, please contact
privacy@acosta.com or by calling us at 1-800-377-2754.
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