Software Developer skills and qualifications

Updated 16 September 2026 · 2 min read

Software developer adverts often read like lists of technologies, but the skills underneath outlast any framework. Employers want developers who can solve problems in code, work with data, build reliable and secure applications, and collaborate well. This guide separates those durable skills from the tools of the moment and explains how to show them.

How this guide was made

Written for this site with AI assistance, then checked automatically before publishing. The topic table, sample questions, worked examples and study plan are generated from this site’s question bank: each worked example is recalculated by separate code, and each sample answer says where it came from.

The guide deliberately states no salaries, grades, pass marks or exam dates. Those change, and they could not be checked here, so take them from the advert itself.

This site is independent and is not affiliated with MIFOTRA or any employer.

Core programming skills

Writing clear, correct code in at least one widely used language, such as Java, Python, JavaScript, C# or PHP.
Using data structures and algorithms appropriately.
Applying object-oriented or functional design sensibly.
Debugging systematically with logs, tests and debuggers.
Reading and improving other people's code.

Where to spend your study time

The suggested emphasis reflects what this position works with day to day. It is a study guide, not a published exam blueprint.

Area	Suggested emphasis	Questions in the bank	Practise
Software development	56%	378	In the full bank
Cloud and emerging technology	22%	188	In the full bank
Cybersecurity	11%	541	Security
Linux command line	11%	360	In the full bank

Data and integration skills

Most applications store and exchange data. Developers need to design database tables, write SQL queries, understand indexes and transactions, and work with at least one database system. Building and consuming APIs, usually over HTTP with JSON, is just as common. Understanding how data moves between systems prevents many bugs.

Quality and delivery skills

Employers value developers who test their own work with unit and integration tests, and who use version control well: meaningful commits, sensible branches and clear pull requests. Familiarity with continuous integration and automated deployment shows you can deliver changes safely and often.

Security awareness

Secure development is expected, not optional. Developers should validate input, prevent injection attacks, handle authentication and sessions correctly, store passwords as salted hashes and keep secrets out of source code. Awareness of common web vulnerability categories, such as those in the OWASP Top 10, is a strong signal.

Collaboration skills

Software is built in teams. Developers take part in planning, estimate work, report progress and blockers, review code constructively and write documentation others can use. In agile teams, reliably delivering what was agreed matters as much as technical brilliance.

Showing skills convincingly

A portfolio of working projects is the most persuasive evidence. Include the code, a short explanation of what each project does and why you made its key decisions, and tests where you can. Contributions to open-source projects, or clear technical writing, also help.

Open adverts for this position

No open Software Developer advert matched when the jobs board was last checked. It is refreshed every morning.

Browse every open vacancy

Common questions

Do I need to know many languages?

Depth in one language and the ability to learn others matter more than a long list. Employers expect good developers to pick up a new language when a project needs it.

Are frameworks important?

Yes, for productivity, and adverts often name them. But frameworks change, while fundamentals such as data structures, HTTP and databases stay useful for a whole career.

How do I keep my skills current?

Build something new every few months, read release notes for the tools you use, and learn from code reviews. Steady, practical learning keeps you current without chasing every new trend.

How much should I know about databases as a developer?

Enough to design sensible tables, write correct queries, understand indexes and transactions, and recognise a slow query. Data outlives application code, so mistakes in its design are expensive to correct later.