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Sebastian Sigl Profile
Sebastian Sigl

@sesigl

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Passionate software engineer @Adevinta | Building websites in public | Tweeting about backend & frontend | Free coaching | Ex @eBay with 15 years experience

Dresden, Deutschland
Joined August 2015
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@sesigl
Sebastian Sigl
1 year
๐Ÿ“š Looking for a developer roadmap? . Here are 5 FREE Notion templates:. ๐ŸŽจ Frontend.โš™๏ธ Backend.๐Ÿ–ฅ๏ธ Full-Stack.๐Ÿ”ฌMachine-Learning.๐Ÿš„ Data-Eng. ๐Ÿ“ฆ 83 resources, 40 tasks, 40 Cheat Sheets and 500+ practice questions!.
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sesigl.gumroad.com
5 learning paths to become a software engineer containing a sorted collection of free resources. Everything is organized and integrated into comprehensive learning dashboards, including the possibi...
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@sesigl
Sebastian Sigl
7 days
Itโ€™s time to look into functional programming with . โ€žGetting Clojure: Build Your Functional Skills One Idea at a Timeโ€œ.by Russ Olsen. Whatโ€™s your functional programming gem that makes you a better generalist?. #functionalprogramming #clojure #architecture #cleancode
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@grok
Grok
4 days
Join millions who have switched to Grok.
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@sesigl
Sebastian Sigl
14 days
RT @sesigl: The AI Productivity Paradox is real. Devs are 55% faster with tools like Copilot. But new 2025 research shows code duplicationโ€ฆ.
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@sesigl
Sebastian Sigl
17 days
If you enjoyed this thread and want more high-quality content, subscribe to my newsletter here:.
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sebastiansigl.com
Subscribe to Sebastian Sigl's newsletter and benefit from big tech insights, actionable advice, and an independent viewpoint.
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@sesigl
Sebastian Sigl
17 days
I've written a full guide with code examples and the 4 core principles for writing AI-ready Python tests. It's the playbook for harnessing AI speed without sacrificing quality. Read it here: #Python #Testing #AI #SoftwareQuality.
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sebastiansigl.com
AI coding assistants are accelerating developmentโ€”but also magnifying quality risks. Hereโ€™s how to write Python tests that survive refactors, scale with your codebase, and tame the chaos of augmented...
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@sesigl
Sebastian Sigl
17 days
Next, build an architectural safety net. Use ๐——๐—ฒ๐—ฝ๐—ฒ๐—ป๐—ฑ๐—ฒ๐—ป๐—ฐ๐˜† ๐—œ๐—ป๐—ท๐—ฒ๐—ฐ๐˜๐—ถ๐—ผ๐—ป + ๐—ฃ๐—ฟ๐—ผ๐˜๐—ผ๐—ฐ๐—ผ๐—น๐˜€ to define clear, verifiable boundaries. When mocking, always use ๐šŠ๐šž๐š๐š˜๐šœ๐š™๐šŽ๐šŒ=๐šƒ๐š›๐šž๐šŽ. A mock that doesn't know the real object's interface is a test that lies.
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@BTCCexchange
BTCC
7 days
Bitcoinโ€™s on fire at $112K! Time to flip the charts on BTCC!.Exploring Cryptocurrency with Jaren Jackson Jr.๐Ÿ€.
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@sesigl
Sebastian Sigl
17 days
The solution starts with a mindset shift: ๐—ง๐—ฒ๐˜€๐˜ ๐—–๐—ผ๐—ป๐˜๐—ฟ๐—ฎ๐—ฐ๐˜๐˜€, ๐—ก๐—ผ๐˜ ๐—œ๐—บ๐—ฝ๐—น๐—ฒ๐—บ๐—ฒ๐—ป๐˜๐—ฎ๐˜๐—ถ๐—ผ๐—ป. Your tests should verify the "what," not the "how." This makes them resilient to the constant refactoring that AI-assisted development encourages.
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@sesigl
Sebastian Sigl
17 days
The problem: AI optimizes for the immediate task. It doesn't have architectural awareness. It will happily duplicate code rather than refactor a shared module. This creates brittle, high-churn code that slows down the entire team in the long run.
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@sesigl
Sebastian Sigl
17 days
The AI Productivity Paradox is real. Devs are 55% faster with tools like Copilot. But new 2025 research shows code duplication is up 8x and refactoring is down 40%. We're shipping faster, but are we building legacy code from day one?. A thread on how to fix it. ๐Ÿงต
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@sesigl
Sebastian Sigl
2 months
๐Ÿ”ฅThe uncomfortable truth for many tech companies: your hiring process is stuck in the past. While you're testing for textbook data structures, the real world demands skill in guiding AI, reviewing its output, and integrating it effectively. #CodingInterview #Tech #HiringNow
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@sesigl
Sebastian Sigl
2 months
RT @sesigl: Is your AI coding assistant just a fancy autocomplete? ๐Ÿค” We're on the cusp of something bigger: Agentic Coding. This isn't jusโ€ฆ.
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@BenLamm
Ben Lamm
5 days
Meet Romulus & Remusโ€”the worldโ€™s first de-extinct animals brought back from extinction using DNA from 72,000-year-old fossils. Follow to watch these dire wolves grow and to discover the next species weโ€™re working to bring back.
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@sesigl
Sebastian Sigl
2 months
What's your take? Is agentic coding the next significant leap in software development, or are we overhyping its current capabilities? What's the one development task you'd most eagerly delegate to a reliable AI agent?. Join the conversation! ๐Ÿ‘‡. 6/6.
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@sesigl
Sebastian Sigl
2 months
Want a deeper audio dive? . I also created a podcast episode discussing the nuances, the critical challenges (hello, testing, validation, and ensuring alignment with intent!), and the exciting potential of agentic coding. ๐ŸŽง. 4/6.
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open.spotify.com
Full Stack and Forward: AI-Powered Tech and Leadership ยท Episode
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@sesigl
Sebastian Sigl
2 months
To visualize the leap from current AI tools (like Copilot, Claude Code) to true agentic systems (think Jules, or future iterations), I've put together an infographic. Key difference: the level of autonomy & complexity of tasks handled. 3/6
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@sesigl
Sebastian Sigl
2 months
Agentic coding aims to augment developers, not replace them. Imagine an AI pair programmer that can independently research solutions, implement features, and even write initial tests based on high-level project goals. ๐Ÿคฏ. 2/6.
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@mschlapp
Matt Schlapp
2 days
My response to Mayor Frey and Governor Newsom telling people to not pray for the victims of a school shooting in his city:โคต๏ธ. If someone loves you enough to pray for you, why do you have to be so nasty about that?
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@sesigl
Sebastian Sigl
2 months
Is your AI coding assistant just a fancy autocomplete? ๐Ÿค” We're on the cusp of something bigger: Agentic Coding. This isn't just about AI suggesting code, but autonomously tackling complex development tasks. #AgenticCoding #AI #DevTools. ๐Ÿ‘‡1/6
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@sesigl
Sebastian Sigl
3 months
My take: LLMs won't overhaul how we write software, but they'll definitely boost areas like no-code, empowering non-engineers. Pink glasses on: the tedious stuff gets easier to automate! ๐Ÿš€ #AI #SoftwareDevelopment #LowCode.
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@sesigl
Sebastian Sigl
4 months
It's fantastic to see TDD gaining traction, especially with LLMs transforming code generation. The ability of TDD to provide a clear specification and immediate verification for AI-assisted development is amazing. Code quality is up, and feedback loops are tight.
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@sesigl
Sebastian Sigl
4 months
My X timeline is full of distractions. I will move my activity to Mastodon and give it a try. Follow me there if you like to engage:.
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mastodon.social
5 Posts, 9 Following, 0 Followers ยท Passionate software engineer @Adevinta | Building websites in public | Tweeting backend, frontend, data & leadership | Ex @ebay with 15 years work experience
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@sesigl
Sebastian Sigl
4 months
RT @sesigl: Is your team constantly firefighting ๐Ÿ”ฅ? Feeling like you're bailing water from an overflowing bathtub of tech debt, bugs, & delโ€ฆ.
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@Complex
Complex
4 days
Amboyโ€™s own Alvin Cailan just dropped a โ€œTouchdown Chicken Dipโ€ that goes crazy on a Wheat Thin. Pull up to Family Style Food Fest LA on 9/13 to try this and four more custom recipes. Sponsored by @WheatThins
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