Articles by Jean C Becker, founder of JBKR Web, on real technology decisions in Brazilian companies: costs, legacy systems, mobile apps and applied AI. Every article carries a date, cited sources and hands-on experience from projects since 2006.
Since 3 August 2026, SEFAZ rejects NF-e and NFC-e from regular-regime companies without the IBS and CBS fields. In September, Simples Nacional companies choose between the standard and the hybrid model. In 2027, split payment begins. This article sums up what changed, what still changes and gives a checklist to know whether your ERP, e-commerce or invoicing system is ready.
An MVP app for Android and iOS costs between BRL 30k and BRL 120k in Brazil in 2026; apps with a complex back end, payments and integrations exceed BRL 150k. This article opens the books (what drives the price, what does not, and how JBKR Web quotes) based on 12 Android and 7 iOS projects delivered.
The AI application that returns the most money in Brazilian companies is not the chatbot: it is using language models to understand, document and test old systems in PHP, Java, .NET and COBOL. This article separates what works today from what is still a promise, and explains how JBKR Web uses AI in legacy modernization, always with human review.
Most old systems do not need a rewrite; they need an updated version, backups and a technical owner. This article gives objective criteria to decide between maintaining, modernizing in parts or rewriting, with the cost ranges practised in 2026 and the method JBKR Web has used for 20 years.
