Senior Software Engineer & Tech Lead, former @cern. π° Writing The Optimist Engineer optimistengineer.com
Joined June 2009
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ππΌ Marcos here and I love these topics:
β³οΈ Software Engineering
β³οΈ Technical Leadership
β³οΈ Technical Growth
I help you to be better on those topics here down π
newsletter.optimistengineer.β¦
All with a bit of optimism π±
#softwareengineering #leadership #growth #optimistengineer
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Marcos F. Lobo πΊπ¦ππ @marcosflobo@hachyderm.io retweeted
May 12
We've all designed some bad software before. Just me? Ok.
@arrayexception calls out for signals that you've got a suboptimal designβthink rigidity, fragility, immobility, and viscosityβand what to do about it.
newsletter.optimistengineer.β¦
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Son lo suficientemente fuertes como para caer al suelo ordenadores, bolsos, etc., desde las mesas de los asientos.
Hace pocos minutos ha ocurrido en el tren en el que voy.
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If you need to understand the difference between different LLM models, this is a must-read
ππ» open.substack.com/pub/alexewβ¦
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π¨ π£ Estoy muy feliz de contΓ‘ros que ya que estΓ‘ disponible la entretenida entrevista que me hizo HernΓ‘n DΓaz RodrΓguez, dentro del marco de la Microcredencial en Inteligencia Artificial en la @uniovi_info
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Si te gusta la navidad y te apetece disfrutarla en #asturias esto te interesa ππ½
open.substack.com/pub/ruralpβ¦
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An incremental architecture is an architecture designed to grow.
And why this is something you should care of? ππ½
newsletter.optimistengineer.β¦
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Cross-functional teams deliver faster than layered organizations because each team owns a domain end-to-end. No waiting for βthe backend teamβ or βthe frontend teamβ to free up a sprint.
newsletter.optimistengineer.β¦
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People leave companies because:
π’ Money
π’ Stability
π’ Work respect
Fruits, candies, retro-game machine, and apΓ©ros after work are just smoke bombs.
newsletter.optimistengineer.β¦
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Folks, I've just published another learning about how make software Architectures Incremental.
I would love to hear your thoughts about it ππ½
newsletter.optimistengineer.β¦
#software #architecture #TechLead
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In this email, I just wanted to make a heads-up about Crossplane, a technology that solves a real and important problem that the majority of us suffer from every day:
ππΌ Not owning our infrastructure.
newsletter.optimistengineer.β¦
#crossplane #kubernetes
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Are you into some certification?
π’ Is it worth it?
π΄ Or better to pass?
I read you in the comments ππ½
newsletter.optimistengineer.β¦
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If you want, I can share a checklist and commands to spin up the POC in 10 minutes with Promptfoo.
You can run it today and present results in your next sprint demo.
Interested?
ainativecompass.substack.comβ¦
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You can now own your infrastructure without opening a ticket.
newsletter.optimistengineer.β¦
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Practical idea: define 5 representative prompts, run them with 2 models and 2 data domains.
Measure accuracy, format correctness, and tokens.
If just one combination performs clearly better, youβve already saved time and money.
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Useful tools to kick off your POC:
Promptfoo for CI testing, LangSmith for traceability, and OpenAI Evals for programmable cases.
Start with one tool and measure. Then decide if building something internal makes sense.
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If your org needs governance or traceability, manual prompt testing wonβt cut it.
Integrate prompt tests into CI: fail the pipeline if a prompt breaks coverage or format.
Youβll avoid regressions and production surprises.
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