Programming Tutorials

Practical programming tutorials with clear examples and best practices for Python, C++, JavaScript and more. Learn design, testing and performance.

Fintech Software Development UK: FCA, Rails and Cost

Fintech software development is priced and scheduled like ordinary software development right up until somebody asks who is authorised to hold the money. At that point the project stops being an engineering exercise and becomes a regulatory one with an engineering component, and the timeline you had in mind stops being...

MVP Software Development: Scope, Cost and Timeline

MVP software development goes wrong at the scoping meeting, not during the build. Somebody says “minimum viable product”, everybody nods, and then the feature list arrives containing user accounts, an admin panel, billing, notifications, a dashboard and a mobile app. That is not a minimum viable product. That is a...

Custom API Development Cost: What You Pay For in 2026

Anyone estimating custom API development cost from the number of endpoints is going to be wrong, usually by a factor of three. Endpoints are the cheapest part. A dozen of them, reading and writing data you already hold, is a fortnight’s work for a competent backend developer. What costs money is everything that turns...

COBOL Modernisation Services: How to Choose a Vendor

Buying COBOL modernisation services is unlike buying any other kind of software work. The system in question has been running for thirty or forty years, nobody currently employed fully understands it, and the consequences of getting it wrong are measured in regulatory reporting failures rather than missed sprints....

Hire a C++ Developer: Rates, Specialisms and Vetting

The decision to hire a C++ developer usually arrives with a specific problem attached. Something has to be fast, or has to run on hardware, or has to interface with a library that only ships a native interface. What follows is a hiring process that treats C++ as a single skill, and that assumption is the source of most...

Hire a Qt Developer: Skills, Rates and Licence Traps

Companies that need to hire a Qt developer are usually building something that has to run on a machine rather than in a browser: an instrument panel, a diagnostic tool, a control application for hardware nobody else supports. The candidate pool is a fraction of the size of the web market, the vocabulary is different,...

Mainframe Migration Tools: What Works and What Fails

Every mainframe migration begins with someone searching for mainframe migration tools, and every vendor demonstration that follows looks remarkably convincing. A few thousand lines of COBOL go in, readable Java comes out, the test suite passes, and the slide deck promises seventy or eighty per cent automation. The...

Legacy Software Modernisation: Rewrite vs Refactor Guide

Deciding when to modernise a legacy software system is one of the most consequential architectural decisions an enterprise engineering team faces in 2026. Outdated systems limit feature development, introduce security vulnerabilities, and increase hosting costs due to inefficient resource usage. However, completely...