Backend Developer and Machine Learning Engineer
Building robust backends, machine learning pipelines and AI privacy-focused tools
Spring Boot · Angular · Python · on-prem RAG and Ollama. A technical hub with technical articles, 556 free dev-tools, an AI Knowledge Hub and open data datasets.
No generic roadmaps, introductory courses, or AI-written content: here every concept comes from a monorepo with three real production microservices, with architectural choices verifiable in the code.
Clean Architecture with 4-layer defense from ArchUnit in CI, Flyway migration with real post-mortems, multi-layer security: not a tutorial, a real production Spring Boot system.
Angular 21 SSR with hundreds of prerendered routes, Core Web Vitals measured, and enterprise-level i18n: the expertise that completes the stack, not the site headline.
Series focused on mid-to-senior jump and non-CS to dev path, with practical decision-based trade-offs: career is built with judgment, not just a degree.
Technical articles on Angular, Spring Boot, ML, AI and architecture.
556 free tools: calculators, generators, validators.
52 free extensions for Chrome and Firefox: dev-tools, SEO, accessibility and on-prem AI. 100% offline, zero telemetry.
High quality dataset for research, machine learning training and analysis.
Knowledge Pack for LLM, RAG Agent, Claude Projects and Copilot.
Visual tools and simulators for learning technical concepts.
Transcriptions and notes from 3 Italian universities (10,009 lectures).
Subscription, Audit, Data API and Paid Knowledge Packs.
17 sectoral tools: finance, health, HR, real estate, law and more.
Custom web development, technical SEO and business automation for clients and companies.
Lessons for middle and high school students: theory (algorithms, flowcharts) and practice (Java, C, C++, HTML, CSS).
702 technical articles on Angular, Spring Boot, Python and Machine Learning, Knowledge Packs optimized for LLMs and RAG, and open data datasets ready for training and analysis.
556 free in-browser tools: tax and payroll calculators for 23 countries, IBAN and tax-code generators, validators and SEO tools. No sign-up required.
Explore 556 Dev ToolsTechnical newsletter, code and performance audits, Dataset API and paid Knowledge Packs for teams and professionals who want to speed up development.
Explore Premium ServicesOn-premise RAG and LLMs with Ollama and FastAPI: privacy-first chat, recommendations and semantic search, with no data sent to US clouds and zero API costs.
Read articles on AI & ML11,009 university lectures transcribed from 3 Italian universities, plus interactive visual tools to learn technical concepts step by step.
Each zone is free and designed for developers, researchers, and professionals.
Tax calculators for 23 countries, IBAN generators, validators, SEO tools and more. No registration.
Download CC-BY-4.0 datasets ready for ML training, analysis, and research. CSV and JSON formats, updated regularly.
11,009 transcribed lectures from 3 Italian universities. Computer science, math, economics, and engineering. Free and indexed.
Web Development Angular SSR, Technical SEO, Business Automation and Architectural Consultation. Contact me for a quote.
Practical guides on Angular, Spring Boot, AI, and security. Updated with latest best practices and enterprise patterns.
Query the Knowledge Hub with on-prem RAG: answers based on the site's articles, total privacy, zero cloud latency.
From MVP to on-prem AI: bespoke development, automation and technical consulting. Production-grade stack, direct communication, verifiable quality.
From concept to a production-ready, validatable product. Scalable architecture and fast delivery.
Websites and web apps with Angular SSR and Spring Boot. Lighthouse 90+ performance and optimal SEO.
Management systems, internal tools and specific integrations. No templates: designed around your domain.
Technical audit, structured data, Core Web Vitals and content strategy. Measurable results.
Automated workflows, data pipelines and integration between heterogeneous systems via REST/webhook.
RAG with on-prem Ollama, semantic embeddings and vector search. AI without vendor lock-in.
Deep dive into Angular, Spring Boot, AI, security, and cloud-native architecture.
Big-O, Omega and Theta: what they really mean when comparing algorithms. Measurable Python examples, the counter-example everyone gets wrong, and a real-world case where O(n²) beats O(n log n) based on actual data size.
Read the articleTo achieve TTFB <1s and 95+ Core Web Vitals in Angular 21 SSR, five combined steps are required: @defer loading for below-the-fold components, selective route prerendering, multi-layer...
Read the articleA production AI Agent requires 4 critical components: reactive planning loop (ReAct/OODA), type-safe tool registry with validation, persistent memory...
Read the articleMy work is published and citable on high-authority open platforms, used by researchers and AI models around the world.
On-prem AWS on VPS: No data sent to US Cloud, Zero API costs.
556 Dev Tools in the browser, no registration or subscription required.
Quick answers to common questions about tools, AI, privacy, and premium plans.
Yes. The dev-tools, the technical articles and the university notes are free and registration-free. Premium plans (newsletter, audit, dataset-credits) add optional advanced features.
Yes. The AI model (llama3.1:8b) runs on Ollama installed on the Hetzner VPS in Europe. No data is sent to OpenAI, Anthropic, or Google. Zero API costs, no profiling.
The portal is available in Italian and English. Both versions are compiled and indexed separately, under /it and /en.
Yes. The datasets are released under the CC-BY-4.0 license and downloadable in CSV and JSON formats. Premium dataset credits provide access to advanced query APIs and enriched datasets.
You can start now without signing up: explore the dev-tools, read articles or browse the Knowledge Hub. For advanced features (AI chat, audit, dataset API), create a free account.
For €8 a month get a weekly technical newsletter with in-depth articles on Angular, Spring Boot, AI, and security, article previews, commented code, and priority access to the Telegram channel.
An interactive free map with 30 documented abandoned places: factories, castles, hospitals and more. Filter by category and risk level. For documentation and research only.
Open mapCreate a free account and access all premium tools and content.
Platform impact
Real data, no vanity counters. Measured on organic traffic and active production.
Privacy-focused AI on-premises
RAG with Ollama on Hetzner VPS: zero US cloud data, zero API costs. Adopted as reference architecture for EU AI Act compliant tech portals.
Multilingual SEO and automatic hreflang
Angular SSR AOT: routes prerendered in 2 locale builds, automatic hreflang and sitemaps for every article.