Architecte princ. de sécurité II

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We are seeking an experienced Senior Solution Architect to lead the design, scalability, resilience, and security of Bell's enterprise Elastic platform. This role will shape the technical direction of a multi-terabyte security analytics environment supporting SOC operations, threat detection, incident response, and compliance initiatives. Working across Elastic, Kafka, Open Shift/Kubernetes, Terraform, and Ansible, you will serve as the platform's technical authority, driving architecture decisions, mentoring senior engineers, and ensuring the platform remains secure, highly available, and ready for future growth.

• Define and evolve the target architecture for the Elastic deployment: cluster topology, data tiering (hot/warm/cold/frozen), index and ILM strategy, cross-cluster search and replication, and capacity planning for multi-TB daily ingest.
• Design for resilience on Open Shift with ECK: upgrade strategy, disaster recovery, high availability across data centers.
• Own the platform's security design: authentication and RBAC, encryption, network segmentation, audit logging, and whatever our compliance obligations require.
• Maintain the technical roadmap with the product owner. Evaluate new Elastic features and licensing changes, decide what we adopt, and plan the work.
• Set standards for index naming, data schemas (Elastic Common Schema), ingest patterns, and our Terraform and Ansible code, and review major changes against them.
• Mentor the senior engineers on the team and explain design decisions to security leadership and architecture boards in language they can use.
• Lead root-cause analysis when the platform has a hard performance or stability incident.

• 7+ years in infrastructure or data platform engineering, including 4+ years of hands-on Elastic work at scale, some of it as an architect or technical lead.
• You have designed large multi-node Elasticsearch clusters and can talk in detail about sharding, tiering, ILM, performance tuning, and upgrades that went wrong.
• Working knowledge of the rest of our stack:
  Kafka ingestion patterns, Open Shift or Kubernetes (ideally ECK), Terraform, and Ansible.
• You understand what a SOC needs from a data platform. If you've supported detection engineering or incident response before, even better.
• Experience in agile teams that run CI/CD and carry operational responsibility for what they build.
• You can explain a design to an engineer and to a CISO, and you can defend a decision without being stubborn about it.

• Elastic Certified Engineer.
• Experience with Elastic Security (SIEM), machine learning features, or searchable snapshots at scale.
• Background in a regulated environment ([e.g., financial services, telecom, public sector]) and familiarity with ISO 27001, NIST, or SOC 2.

Adequate knowledge of French is required for positions in Quebec.

Additional Information:

Position Type: Management
Job Status: Regular - Full Time
Job Location: Canada :
Ontario :
Toronto
Work Arrangement: Hybrid
Final date to receive applications: 08/16/2026

For work arrangements that are ‘Hybrid’, successful candidates must be based in Canada and report to a set Bell office for a minimum of 3 days a week. Recognizing the importance of work-life balance, Bell offers flexibility in work hours based on the business needs.

We know that caring for our team members is at the heart of a healthy, positive and thriving workplace. As part of our team, you’ll enjoy a comprehensive compensation package that…