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Tomasz Gramza is an experienced identity specialist and the Principal Engineer in OLX Group Europe – one of the world’s fastest-growing networks of trading platforms used by over 300 million people every month. He drives the Identity Pillar of their Technology Strategy to secure, protect and propagate customer identities within their platforms. He led the adoption of OAuth2, PKCE, OpenID Connect, JWT, etc. and the integration of solutions protecting against Account Takeovers, Account Openings, etc. He is currently introducing a unified Omni-Account for the whole network of OLX trading platforms in Europe.