Top Tech Jobs & Startup Jobs in Montreal

Lead the design, development, deployment, and maintenance of scalable cloud-native platform capabilities for Walmart Connect’s sponsored search advertising infrastructure. Build large-scale data processing systems, pipelines, distributed services, and AI/ML applications using Java, Spark, Kafka, Flink, and GCP. Provide technical leadership, conduct architecture reviews, mentor engineers, collaborate cross-functionally, and drive software quality, resilience, observability, and continuous improvement.

Leads the design, development, and deployment of scalable data platforms and AI applications. Builds cloud-based data pipelines with Python, Scala, Spark, Airflow, and GCP services; ensures data quality, governance, lineage, and modeling. Develops RAG and agentic AI solutions using LangChain and LangGraph, supports SAP e-commerce data flows, monitors pipeline reliability, influences architecture, mentors engineers, and drives cross-functional technical excellence.

Leads the design, development, testing, and delivery of scalable software solutions within Walmart’s data frameworks team. Responsibilities include requirements analysis, architecture and component design, coding, code reviews, debugging, performance monitoring, corrective maintenance, and CI/CD support. The role develops data access frameworks and SDKs for relational, NoSQL, cache, search, and messaging systems while collaborating with stakeholders to deliver secure, maintainable, high-performance applications.

Supports high-volume federal, state, and local Form 1099 tax reporting and withholding compliance. Responsibilities include preparing regulatory filings, analyzing tax data, validating transactions, maintaining audit documentation, responding to notices and inquiries, performing tax research, and resolving compliance issues. The role partners with tax, compliance, earnings, and technology teams to improve processes and ensure accurate, timely reporting.

Leads end-to-end delivery of scalable software features and models, including design, development, testing, debugging, code reviews, CI/CD, and production support. Integrates AI/ML components, translates business needs into technical requirements, monitors performance, and promotes secure, maintainable engineering practices. The role also involves stakeholder collaboration, mentoring, and contributing to technical strategy and continuous improvement across Walmart’s AdTech platform.

Leads development of scalable platform capabilities, infrastructure, tooling, and AI/ML frameworks. Applies cloud-native architecture, manages the full software lifecycle, conducts design reviews, builds AI-driven applications, and ensures reliable production systems. The role mentors engineers, influences architecture, collaborates with stakeholders, and drives continuous improvement through innovation, automation, and engineering best practices.