REST API Design: The Complete Guide to Building APIs That Last
A practical, opinionated guide to REST API design — resource naming, HTTP methods, status codes, versioning, pagination, errors, security, caching, and more. Everything you need to …
How I Turned a 100 ms Problem into a Microsecond Query with AI-Assisted Performance Engineering
A real Hungarian-lottery problem, two complete solutions with the actual Go on the table, and the honest story of how AI helped collapse latency from a 100 ms budget to ~1.5 …
Goodbye Random Inserts: UUIDv7 vs ULID vs UUIDv4 — Unique Identifiers, Performance, and Database Impact
Random UUIDv4 primary keys quietly double your table size and wreck insert performance. How time-ordered IDs — ULID and the new UUIDv7 standard — fix fragmentation, cache locality, …
Zero Trust vs. Traditional VPNs: The Future of Perimeterless Secure Access
The castle-and-moat era is over: there is no moat left to defend. Why the VPN's implicit-trust model breaks in a cloud-first world, and how Zero Trust Network Access (ZTNA) …
A Production-Grade Guide to Golang Database Connection Management with MySQL/MariaDB
Your sql.DB is a pool, not a connection — and treating it wrong leaks connections, hangs services, and triggers Error 1040. A production guide to pool tuning, transactions, …
AI Agents in Software Development: Navigating the Skies of Modern Coding
Coding is switching from visual flight to instrument flight. How AI agents — wired together by the A2A and MCP protocols — become co-pilots in software development, and why the …
The CTO’s Role in Data Management and Governance: Building a Future-Proof Foundation
Data is a fintech's greatest asset — until it becomes its biggest liability. How a CTO builds the data strategy, infrastructure, and governance that keep it on the right side of …
The Role of Artificial Intelligence (AI) in Fintech
AI in finance is racing past $20 billion — and it's not hype. A CTO's field guide to where AI actually works in fintech: fraud detection, robo-advisors, credit scoring, chatbots, …
Macroservices (Mini-Services): Filling The Gap Between Monoliths and Microservices
Not every team needs Netflix-scale microservices — and monoliths stop scaling long before that. Macroservices (mini-services) are the middle path: domain-sized services, fewer …
Monolithic vs SOA vs Microservices Architecture: Choosing the Right Approach for a Fintech Startup
Monolith, SOA, or microservices? A CTO's decision guide for fintech startups — with concrete numbers for team size, transaction volume, and infrastructure cost at each stage of …