Top Tech Jobs & Startup Jobs in Montreal

Temporary Payroll Specialist supporting the transition from a US Branch to a new US LLC and implementation of a global payroll provider. Responsibilities include payroll tax registrations, final filings, payroll configuration, data migration, testing, parallel runs, issue resolution, compliance tracking, documentation, and coordination with Finance, Tax, Legal, HR, vendors, and international payroll teams.

Lead StackAdapt’s internal AI platform team, overseeing platform-scale onboarding of APIs, UIs, and knowledge systems. Own the LLM evaluation pipeline, partner with product and feature teams, establish AI UX patterns, architect scalable APIs and backend systems, and ensure production performance. Hire and mentor full-stack engineers, promote engineering best practices, conduct code reviews and interviews, prioritize roadmaps, and contribute code to high-impact technical initiatives.

Assist Product Designers and Engineers in creating user-centered digital product experiences. Responsibilities include developing wireframes, mockups, prototypes, and user flows; applying design patterns; auditing design consistency; participating in design reviews; and collaborating cross-functionally to launch usable advertising platform features.

Part-time Tax Analyst supporting quarterly and year-end tax provisions, corporate and indirect tax return reviews, tax authority notices, audits, tax research, and other finance projects. The role requires Canadian tax compliance experience, CPA progress or completion, strong attention to detail, deadline management, and effective remote communication. This is a temporary, 20-hour-per-week position with remote flexibility in Canada.

Partner with Account Executives and cross-functional teams to sell StackAdapt's marketing technology portfolio to enterprise marketers. Own pipeline, source and close opportunities, lead executive discovery and demos, develop account strategies, and act as a subject matter expert on customer data, AI-powered marketing, journey orchestration, and measurement.

Leads and scales StackAdapt’s eCommerce new-business sales organization across North America. Responsibilities include developing outbound sales processes and playbooks, managing pipeline and forecasting, coaching Sales Directors and Account Executives, partnering with Marketing and Revenue Operations, improving lead quality, adopting AI-enabled sales technologies, and representing the company at industry events. The role builds a predictable revenue engine through disciplined execution, account-based selling, and cross-functional go-to-market leadership.

Provides administrative support across People Operations, Talent, Global Mobility, and office operations. Responsibilities include interview scheduling, ATS and HRIS updates, onboarding and offboarding support, employee inquiries, employment documentation, work authorization administration, data audits, policy tracking, and office coordination. The intern also supports process improvement projects, maintains confidential employee records, and assists with Toronto hub operations.

Owns advanced reporting, dashboards, data analysis, KPI development, ETL requirements, and data quality initiatives for internal stakeholders. The role delivers recurring and ad hoc reports, builds automated workflows, documents data definitions and processes, communicates insights to senior leaders, and supports BI sprint planning. Strong SQL, data visualization, stakeholder communication, and systematic data quality problem-solving are required.

Provide legal support for commercialization and product development of an AI-powered ad tech platform: draft and negotiate commercial agreements, manage IP portfolio and complex IP litigation, advise on AI, data, and privacy matters, counsel product teams on compliance and IP protection, and develop automated legal workflows.

Manage programmatic advertising campaigns across multiple channels, including trafficking, pixel implementation, QA, pacing, optimization, troubleshooting, monitoring, and performance reporting. Collaborate with Client Services and Sales teams, provide campaign setup expertise, translate performance insights into recommendations, and develop scalable best practices for high-quality campaign execution.