Eduardo Lucas – Blog https://www.eduardo-lucas-dev.com/blog Thoughts on Python engineering, data architecture, enterprise systems, and 25+ years of lessons learned the hard way. en-us Tue, 25 Aug 2026 19:02:56 GMT <![CDATA[Is Claude Code Worth It If You Already Use ChatGPT and GitHub Copilot?]]> https://www.eduardo-lucas-dev.com/blog/is-claude-code-worth-it https://www.eduardo-lucas-dev.com/blog/is-claude-code-worth-it Wed, 25 Mar 2026 00:00:00 GMT AI Claude Code Developer Tools GitHub Copilot <![CDATA[AI Can Write Code — But It Can't Replace Thinking: Why Learning Programming Still Matters]]> https://www.eduardo-lucas-dev.com/blog/ai-cant-replace-thinking https://www.eduardo-lucas-dev.com/blog/ai-cant-replace-thinking Sun, 05 Apr 2026 00:00:00 GMT AI Software Engineering Programming Tech Careers <![CDATA[Gratitude, Growth, and the Weight of a Long Goodbye]]> https://www.eduardo-lucas-dev.com/blog/gratitude-growth-long-goodbye https://www.eduardo-lucas-dev.com/blog/gratitude-growth-long-goodbye Sun, 12 Apr 2026 00:00:00 GMT Career Leadership Reflection Professional Growth <![CDATA[Talking to the Machine: How to Survive — and Win — AI-Powered Job Interviews]]> https://www.eduardo-lucas-dev.com/blog/ai-powered-job-interviews https://www.eduardo-lucas-dev.com/blog/ai-powered-job-interviews Fri, 01 May 2026 00:00:00 GMT AI Career Job Interviews <![CDATA[From Procedures to Intelligence: A Developer's Shift Across Paradigms]]> https://www.eduardo-lucas-dev.com/blog/from-procedures-to-intelligence https://www.eduardo-lucas-dev.com/blog/from-procedures-to-intelligence Sat, 02 May 2026 00:00:00 GMT AI Software Architecture Career Programming Paradigms <![CDATA[Stop Burning Tokens: A Developer's Guide to Smarter AI Usage]]> https://www.eduardo-lucas-dev.com/blog/stop-burning-tokens https://www.eduardo-lucas-dev.com/blog/stop-burning-tokens Sun, 10 May 2026 00:00:00 GMT AI Claude Code Developer Tools Productivity <![CDATA[Async Tasks in Django with Celery + Redis]]> https://www.eduardo-lucas-dev.com/blog/async-tasks-django-celery-redis https://www.eduardo-lucas-dev.com/blog/async-tasks-django-celery-redis Sun, 31 May 2026 00:00:00 GMT Django Celery Redis Backend Python <![CDATA[Stop Using Django REST Framework for Internal APIs]]> https://www.eduardo-lucas-dev.com/blog/stop-using-drf-for-internal-apis https://www.eduardo-lucas-dev.com/blog/stop-using-drf-for-internal-apis Fri, 12 Jun 2026 00:00:00 GMT Django DRF Django Ninja Python Backend <![CDATA[Should You Be Able to Code Without AI? 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It Moved.]]> https://www.eduardo-lucas-dev.com/blog/ai-code-review-bottleneck https://www.eduardo-lucas-dev.com/blog/ai-code-review-bottleneck Wed, 08 Jul 2026 00:00:00 GMT AI Code Review Engineering Best Practices <![CDATA[Django + DRF and Your Frontend: How the Pieces Actually Connect]]> https://www.eduardo-lucas-dev.com/blog/django-drf-frontend-architecture https://www.eduardo-lucas-dev.com/blog/django-drf-frontend-architecture Tue, 14 Jul 2026 00:00:00 GMT Django DRF Frontend React API <![CDATA[Understanding IP Addresses]]> https://www.eduardo-lucas-dev.com/blog/ip-address https://www.eduardo-lucas-dev.com/blog/ip-address Sun, 19 Jul 2026 00:00:00 GMT System Design Novice Networking Fundamentals <![CDATA[Django + GraphQL: What Actually Happens When You Wire Them Together]]> https://www.eduardo-lucas-dev.com/blog/django-graphql-strawberry https://www.eduardo-lucas-dev.com/blog/django-graphql-strawberry Wed, 22 Jul 2026 00:00:00 GMT Django GraphQL Python API Backend <![CDATA[The OSI Model, Explained for Developers]]> https://www.eduardo-lucas-dev.com/blog/osi-model-explained https://www.eduardo-lucas-dev.com/blog/osi-model-explained Sun, 26 Jul 2026 00:00:00 GMT System Design Novice Networking <![CDATA[10 Backend Concepts You Better Know Before Your Next Interview]]> https://www.eduardo-lucas-dev.com/blog/backend-interview-essentials https://www.eduardo-lucas-dev.com/blog/backend-interview-essentials Thu, 30 Jul 2026 00:00:00 GMT Backend Career Interview Prep <![CDATA[The TCP/IP Model: A Developer's Refresher]]> https://www.eduardo-lucas-dev.com/blog/tcp-ip https://www.eduardo-lucas-dev.com/blog/tcp-ip Sun, 02 Aug 2026 00:00:00 GMT System Design Novice Networking <![CDATA[DSA Interview Patterns, Part 1: Arrays, Strings, Sets, and Big O]]> https://www.eduardo-lucas-dev.com/blog/dsa-arrays-strings-sets-big-o https://www.eduardo-lucas-dev.com/blog/dsa-arrays-strings-sets-big-o Wed, 05 Aug 2026 00:00:00 GMT DSA Algorithms Interview Prep Python <![CDATA[DSA Interview Patterns, Part 2: Hash Maps]]> https://www.eduardo-lucas-dev.com/blog/dsa-hash-maps https://www.eduardo-lucas-dev.com/blog/dsa-hash-maps Fri, 07 Aug 2026 00:00:00 GMT DSA Algorithms Interview Prep Python <![CDATA[How DNS Actually Works]]> https://www.eduardo-lucas-dev.com/blog/dns https://www.eduardo-lucas-dev.com/blog/dns Sun, 09 Aug 2026 00:00:00 GMT System Design Novice Networking <![CDATA[DSA Interview Patterns, Part 3: Two Pointers]]> https://www.eduardo-lucas-dev.com/blog/dsa-two-pointers https://www.eduardo-lucas-dev.com/blog/dsa-two-pointers Mon, 10 Aug 2026 00:00:00 GMT DSA Algorithms Interview Prep Python <![CDATA[DSA Interview Patterns, Part 4: Sliding Window]]> https://www.eduardo-lucas-dev.com/blog/dsa-sliding-window https://www.eduardo-lucas-dev.com/blog/dsa-sliding-window Wed, 12 Aug 2026 00:00:00 GMT DSA Algorithms Interview Prep Python <![CDATA[DSA Interview Patterns, Part 5: Binary Search]]> https://www.eduardo-lucas-dev.com/blog/dsa-binary-search https://www.eduardo-lucas-dev.com/blog/dsa-binary-search Fri, 14 Aug 2026 00:00:00 GMT DSA Algorithms Interview Prep Python <![CDATA[What Is a CDN?]]> https://www.eduardo-lucas-dev.com/blog/cdn https://www.eduardo-lucas-dev.com/blog/cdn Sun, 16 Aug 2026 00:00:00 GMT System Design Novice Performance <![CDATA[DSA Interview Patterns, Part 6: BFS and DFS]]> https://www.eduardo-lucas-dev.com/blog/dsa-bfs-dfs https://www.eduardo-lucas-dev.com/blog/dsa-bfs-dfs Mon, 17 Aug 2026 00:00:00 GMT DSA Algorithms Interview Prep Python <![CDATA[DSA Interview Patterns, Part 7: Backtracking and Heaps]]> https://www.eduardo-lucas-dev.com/blog/dsa-backtracking-heaps https://www.eduardo-lucas-dev.com/blog/dsa-backtracking-heaps Wed, 19 Aug 2026 00:00:00 GMT DSA Algorithms Interview Prep Python <![CDATA[Behavioral or Technical? At the Senior Level, It's Not Even Close]]> https://www.eduardo-lucas-dev.com/blog/behavioral-vs-technical-interviews https://www.eduardo-lucas-dev.com/blog/behavioral-vs-technical-interviews Fri, 21 Aug 2026 00:00:00 GMT Career Interview Prep Leadership <![CDATA[Availability: The Metric Everyone Quotes and Almost Nobody Calculates Right]]> https://www.eduardo-lucas-dev.com/blog/availability https://www.eduardo-lucas-dev.com/blog/availability Sun, 23 Aug 2026 00:00:00 GMT System Design Novice Reliability <![CDATA[Behavioral Interviews for Software Engineers: An Introduction]]> https://www.eduardo-lucas-dev.com/blog/behavioral-interviews-introduction https://www.eduardo-lucas-dev.com/blog/behavioral-interviews-introduction Mon, 24 Aug 2026 00:00:00 GMT Career Interview Prep <![CDATA[Scalability: Why 'Just Add More Servers' Is Both Right and Incomplete]]> https://www.eduardo-lucas-dev.com/blog/scalability https://www.eduardo-lucas-dev.com/blog/scalability Sun, 30 Aug 2026 00:00:00 GMT System Design Novice Scalability <![CDATA[Caching: The Highest-Leverage Trick in System Design]]> https://www.eduardo-lucas-dev.com/blog/caching https://www.eduardo-lucas-dev.com/blog/caching Sun, 06 Sep 2026 00:00:00 GMT System Design Novice Performance <![CDATA[Proxies: The Server in the Middle]]> https://www.eduardo-lucas-dev.com/blog/proxy https://www.eduardo-lucas-dev.com/blog/proxy Sun, 13 Sep 2026 00:00:00 GMT System Design Novice Networking <![CDATA[Load Balancers: The Traffic Cop of Every System That Doesn't Fall Over]]> https://www.eduardo-lucas-dev.com/blog/load-balancer https://www.eduardo-lucas-dev.com/blog/load-balancer Sun, 20 Sep 2026 00:00:00 GMT System Design Novice Scalability <![CDATA[CAP Theorem: Why You Can't Have It All (And That's Okay)]]> https://www.eduardo-lucas-dev.com/blog/cap-theorem https://www.eduardo-lucas-dev.com/blog/cap-theorem Sun, 27 Sep 2026 00:00:00 GMT System Design Practitioner Distributed Systems <![CDATA[PACELC: The Trade-off CAP Theorem 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Nov 2026 00:00:00 GMT System Design Expert Architecture <![CDATA[Monolith vs. Microservices: Choosing the Right Architecture]]> https://www.eduardo-lucas-dev.com/blog/monolith-vs-microservices https://www.eduardo-lucas-dev.com/blog/monolith-vs-microservices Sun, 29 Nov 2026 00:00:00 GMT System Design Expert Architecture <![CDATA[Message Brokers: The Middleman Your Services Actually Need]]> https://www.eduardo-lucas-dev.com/blog/message-broker-explained https://www.eduardo-lucas-dev.com/blog/message-broker-explained Sun, 06 Dec 2026 00:00:00 GMT System Design Expert Messaging <![CDATA[APIs Explained: How Software Talks to Software]]> https://www.eduardo-lucas-dev.com/blog/api-fundamentals https://www.eduardo-lucas-dev.com/blog/api-fundamentals Sun, 13 Dec 2026 00:00:00 GMT System Design Expert APIs <![CDATA[REST, GraphQL, and gRPC: Three Ways to Ask for Data]]> https://www.eduardo-lucas-dev.com/blog/rest-graphql-grpc https://www.eduardo-lucas-dev.com/blog/rest-graphql-grpc Sun, 20 Dec 2026 00:00:00 GMT System Design Expert APIs <![CDATA[WebSockets, Long Polling, and Server-Sent Events]]> https://www.eduardo-lucas-dev.com/blog/websockets-long-polling-sse https://www.eduardo-lucas-dev.com/blog/websockets-long-polling-sse Sun, 27 Dec 2026 00:00:00 GMT System Design Expert APIs Real-Time <![CDATA[Service Mesh: Who's Watching Your Microservices Talk to Each Other?]]> https://www.eduardo-lucas-dev.com/blog/service-mesh-explained https://www.eduardo-lucas-dev.com/blog/service-mesh-explained Sun, 03 Jan 2027 00:00:00 GMT System Design Expert Microservices <![CDATA[API Gateway: The Front Door to Your Backend]]> https://www.eduardo-lucas-dev.com/blog/api-gateway https://www.eduardo-lucas-dev.com/blog/api-gateway Sun, 10 Jan 2027 00:00:00 GMT System Design Expert APIs Microservices <![CDATA[Rate Limiting: How Systems Protect Themselves From Their Own Popularity]]> https://www.eduardo-lucas-dev.com/blog/rate-limiting https://www.eduardo-lucas-dev.com/blog/rate-limiting Sun, 17 Jan 2027 00:00:00 GMT System Design Expert Reliability <![CDATA[Single Sign-On: One Login, Many Doors]]> https://www.eduardo-lucas-dev.com/blog/single-sign-on https://www.eduardo-lucas-dev.com/blog/single-sign-on Sun, 24 Jan 2027 00:00:00 GMT System Design Expert Security <![CDATA[OAuth: Letting Apps Act on Your Behalf Without Handing Over Your Password]]> https://www.eduardo-lucas-dev.com/blog/oauth https://www.eduardo-lucas-dev.com/blog/oauth Sun, 31 Jan 2027 00:00:00 GMT System Design Expert Security <![CDATA[Symmetric and Asymmetric Encryption]]> https://www.eduardo-lucas-dev.com/blog/symmetric-asymmetric-encryption https://www.eduardo-lucas-dev.com/blog/symmetric-asymmetric-encryption Sun, 07 Feb 2027 00:00:00 GMT System Design Expert Security <![CDATA[Consistent Hashing]]> https://www.eduardo-lucas-dev.com/blog/consistent-hashing https://www.eduardo-lucas-dev.com/blog/consistent-hashing Sun, 14 Feb 2027 00:00:00 GMT System Design Expert Distributed Systems <![CDATA[Concurrency Control and Locks: Keeping Shared State Sane]]> https://www.eduardo-lucas-dev.com/blog/concurrency-control-and-locks https://www.eduardo-lucas-dev.com/blog/concurrency-control-and-locks Sun, 21 Feb 2027 00:00:00 GMT System Design Expert Distributed Systems