Eric Haggar
Software Engineer @Qlik
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WORK HISTORY
Software Engineer @Qlik
CA
Progressed from a Fullstack Engineer on the MyQlik team to specializing in backend development on the IAM team, now leading core authentication services for the Qlik SaaS platform.Key Accomplishments• Led core authentication services for the Qlik SaaS platform, securing service-to-service and external API access via OAuth and API keys, and enabling SSO with OIDC and SAML.• Led zero-downtime migration of token signing from a JavaScript service to a new Go microservice, improving latency and reducing operational costs across 150+ microservices.• Reduced customer onboarding time by 65% through self-service automation of Qlik Cloud tenant provisioning and configuration.• Redesigned auth invalidation flows to be non-blocking, eliminating Redis bottlenecks and reducing cache invalidation latency by up to 250x.• Designed an OAuth 2.0 extension grant type to simplify Qlik chart embedding on partner sites, reducing customer development effort by 50%.• Engineered an automated recovery login, reducing account ownership transfer processing from days to milliseconds.• Migrated OAuth 2.0 APIs from stateless to stateful tokens using MongoDB and Redis, enabling token management APIs and audit capabilities.
EDUCATION
University of Ottawa
Bachelor’s Degree, Computer Science and Mechanical Engineering (CO-OP)
SKILLS
ABOUT ERIC HAGGAR
Backend Software Engineer with 6+ years of experience building reliable and scalable distributed systems and delivering end-to-end product features.
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