Tomasz Kowalczyk
Software consultant with over 15 years of experience in the web applications industry. Functional Programming enthusiast pursuing the ultimate goal of software quality and maintainability. An author of several open-source libraries. Provides well-designed and open solutions to technical problems.
Montreal 2027 sessions
Artificial Intelligence, Real Consequences
English session - Intermediate
How much code do you still truly read? Do you check what green tests actually prove? Everything passed review without a problem, but the outage it caused is still yours. I will teach you my hard-won principles for getting this process back under control: verifying without asking, checking assumptions before building on them, ranking changes by irreversibility, actually enforcing rules. You wanted to make things predictable. Let's reclaim that.
Authentication is the easy half
English session - Intermediate
You asked for an ID before you opened the door. Who checks which rooms they open next? Authentication alone gets you almost nothing. Once a request is trusted, whole classes of failures open up: unauthorised reads, privilege grants, wrong balances, forgotten endpoints still answering, control panels wide open. I will walk you through the vulnerability and teach you the defence. Let's look at both halves and get authorisation right.
