--- title: Medium | daily.dev description: Experienced engineers, not junior developers, are often the source of the most costly production failures. Overconfidence from years of pattern recognition... canonical: https://daily.dev/posts/medium-xbnrnh9la twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Medium | daily.dev og:description: Experienced engineers, not junior developers, are often the source of the most costly production failures. Overconfidence from years of pattern recognition... og:url: https://daily.dev/posts/medium-xbnrnh9la og:image: https://api.daily.dev/og/posts/XbNRnH9La.png og:image:alt: Medium og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Medium **[Medium](https://daily.dev/sources/medium_js)** · 4 min read · 0 upvotes · 0 comments ## Summary Experienced engineers, not junior developers, are often the source of the most costly production failures. Overconfidence from years of pattern recognition leads to unchecked assumptions, undocumented decisions, and accumulated complexity. The highest-performing engineers maintain curiosity, invite disagreement, and prioritize clarity over cleverness. Humility and continuous self-questioning scale better than raw intelligence, and the most dangerous engineer is the one who stops being curious. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [What Actually Makes You Senior](https://daily.dev/posts/what-actually-makes-you-senior-e5z85lfpg) · Programming Digest · 1 upvotes · 0 comments - [Blog: The Senior Engineer's Trap: When Your Own Expertise Becomes the Bottleneck](https://daily.dev/posts/blog-the-senior-engineer-s-trap-when-your-own-expertise-becomes-the-bottleneck-1urkzl6hb) · Wawandco · 42 upvotes · 3 comments - [A Scientist’s Guide to Debugging Engineers](https://daily.dev/posts/a-scientist-s-guide-to-debugging-engineers-8knech3od) · Manager.dev · 4 upvotes · 0 comments - [How good engineers write bad code at big companies](https://daily.dev/posts/how-good-engineers-write-bad-code-at-big-companies-my1zgfefc) · Hacker News · 3 upvotes · 0 comments --- Tags: [#code-review](https://daily.dev/tags/code-review), [#company-culture](https://daily.dev/tags/company-culture), [#technical-debt](https://daily.dev/tags/technical-debt) [View this post on daily.dev](https://daily.dev/posts/medium-xbnrnh9la) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Medium","url":"https://daily.dev/posts/medium-xbnrnh9la","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/medium-xbnrnh9la"},"datePublished":"2026-07-23T12:12:44.251Z","dateModified":"2026-09-14T07:26:35.559Z","description":"Experienced engineers, not junior developers, are often the source of the most costly production failures. Overconfidence from years of pattern recognition...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d6ab0a9a223ee01bc82d647f54feb2d2?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/d6ab0a9a223ee01bc82d647f54feb2d2?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Medium","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Medium","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/medium","url":"https://daily.dev/sources/medium_js"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/medium-xbnrnh9la","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"code-review,company-culture,technical-debt","timeRequired":"PT4M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Medium","item":"https://daily.dev/sources/medium_js"},{"@type":"ListItem","position":3,"name":"Medium"}]} ```