Romain Hardouin
Staff Engineer @Teads
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WORK HISTORY
Staff Engineer @Teads
Lyon, FR
Data Infrastructure Leadership Envisioned the self-serve Teads Stateful Platform, using a make-before-break strategy to manage the Redpanda fleet, enabling 16x faster deployments over our Kubernetes solution. Initiated and currently leading the Kafka-to-Redpanda migration project, where I authored a comprehensive TCO analysis projected to reduce costs by 20%, save two weeks of team operations per year, enhance scalability, and simplify the stack by reducing components fivefold. Designed and orchestrated an Aurora MySQL fleet upgrade (from version 1 to 3) across 15 clusters and 100+ instances, benefiting more than 10 engineering teams. Orchestrated the migration of over hosts from Datadog to an internal observability stack, yielding substantial cost savings.Datastore Subject Matter Expert Served as a Kafka and Cassandra expert, enabling infrastructure team autonomy through training, documentation, and support. Provided on-call expertise to resolve critical data infrastructure issues.Cross-Functional Collaboration Member of the GenAI governance team. Proposed and led a Generative AI Hackaton project aimed at delivering personalized ad experiences. Defined and drove the company-wide \"Datastore Vision\" aligning infrastructure strategy with business scalability goals. Contributed as a key member of the \"Core Vision\" working group, driving the company\'s technical direction and roadmap. Successfully advocated for and implemented a \"Twelve-Factor App\" methodology for infrastructure, establishing principles for robust and scalable systems. Collaborated as part of a virtual team with diverse stakeholders to deliver Google Privacy Sandbox services.Mentorship Fostered a culture of continuous learning by leading regular internal presentations and training sessions. Mentored junior engineers, guiding their technical growth and preparing them for expanded responsibilities.
EDUCATION
BTS Informatique, Lyon
Applied Associate Degree in Computer Science, Computer Software Engineering
CPGE, Cergy
Advanced Mathematics Preparatory Program
ABOUT ROMAIN HARDOUIN
I bring +10 years of experience in designing scalable, high-performance distributed cloud data platforms. I have been working with Cassandra since 2010, leading cross-team initiatives to modernize data infrastructure, optimize system performance, and drive automation with Python, Java, and Go.At Teads, I improved the availability and performance of our Kafka and Cassandra platforms by reducing P99 latency through better data modeling, workload splitting, and client-server tuning. I’m currently leading a strategic migration from Kafka to Redpanda to cut costs, improve scalability, and enhance operability.I also envisioned the self-serve Teads Stateful Platform, replacing our legacy deployment process with an immutable infrastructure model, leading to 16x faster deployments for our Redpanda fleet.Passionate about AI, I explore AI-driven workflows, vector databases, and LLMs, all of which are shaping the future of our industry.
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