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Sebastian Sogamoso

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titleconferencedate
The Overnight FailureScaleConf Colombia 20182018-04-27
A recounting of a real production incident where a billing system charged users thousands of times too much; it explains the root cause, immediate impact, and…
Talk in Spanish on
The overnight failureRubyConf 20172017-11-15
A carpool app runs a weekly job that enqueues passenger driver charge jobs into a queue and the payment gateway charges and pays drivers. A bug enqueues…
Talk on
TCP Sockets Programming in RubyWindyCityRails 20162016-09-15
Explains how Ruby maps to the Berkeley socket API and demonstrates actual calls like socket bind listen connect read write close, shows using Ruby helpers…
Talk on
When Making Money Becomes a Headache...Rails Pacific 20162016-05-20
Covers real failures: assuming HTTP status code ≠ success for async settlements, relying on unchecked webhooks, missing idempotent charges that double-bill…
Talk on
Microservices, a bittersweet symphonyRailsConf 20152015-04-21
Argues that microservices often introduce more operational complexity than they solve, backed by concrete rules and tradeoffs: use cognitive load to size…
Talk on
Services Taste Better in Small Disposable CupsNickel City Ruby 20142014-10-02
Claim: designing services as small, independently deployable units reduces blast radius but requires concrete boundaries and ops work. Recommends following…
Talk on
SOLID principles through testsLA RubyConf 20142014-02-06
Argues that concrete examples show tests driving SOLID: using TDD with Ruby RSpec and wishful testing leads to extracting responsibilities into classes like…
Talk on
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