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Best Software Developers
Updated 2026-09-26
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Custom software can automate work, connect your tools or become a product in its own right. It is also easy to under-specify, so the result does the wrong thing well. Software projects go wrong when requirements are vague, nothing is tested along the way, or the code and accounts are never handed over. This guide helps you stay in control.
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What a good software project includes
Software development gigs range from small scripts to full applications. For anything beyond a small task, the project should state:
- Requirements: a written list of features and how each should behave.
- Technology: language, frameworks and where it will run.
- Milestones with deliverables you can test.
- Testing: how the developer checks the work, and how you will accept it.
- Documentation: how to install, run and update the software.
- Handover: source code in your repository, credentials and account access.
- Support: how long bugs in delivered work are fixed.
How to brief a software developer
- The problem the software solves, and who will use it.
- Features, each written as "a user can… and then…".
- Examples: sample inputs, files, screens or reports.
- Existing systems it must work with, and how to access them.
- Must-have versus later: what the first version needs, and what can wait.
- Constraints: security, data privacy, performance and platforms.
- Budget range and deadline, so the developer can propose a realistic scope.
Ask the developer to repeat the requirements back in their own words before starting. Misunderstandings found at this stage cost nothing; found at delivery, they cost a lot.
What drives the price
- number and complexity of features
- integrations with other systems
- user accounts, payments and security needs
- user interface design
- testing, documentation and deployment
- support after launch and the developer's experience
Red flags
- A fixed price for a large project with no written requirements.
- No milestones, with everything delivered at the end.
- Code kept on the developer's accounts with no plan to hand it over.
- Requests to pay or communicate outside the marketplace.
- Refusal to explain technical choices in plain words.
Test every milestone yourself with real data before approving it. Write down what you tried and what happened. Clear, reproducible bug reports get faster fixes than general complaints, and they create a record if there is a dispute.
For web-based projects, see our website development guide. If you are not sure what to build yet, a UX designer can help you test ideas before coding starts. For AI features, read our AI development guide.
Keep a short decision log during the project: what was agreed, what changed and why, with dates. Software projects involve many small choices made in messages, and they are easy to forget. When a question comes up months later, such as why a feature works a certain way, the log answers it in seconds. It also helps a new developer understand the project quickly if you ever need to change who maintains the software, and it gives both sides a shared record if there is ever a disagreement about scope.
Quick pre-order checklist
- I have written requirements with examples.
- The project is split into testable milestones.
- The code will be delivered to a repository I control.
- Hosting and service accounts will be in my name.
- I know how long bugs will be fixed after delivery.
FAQ
How detailed should my requirements be?
Detailed enough that you and the developer agree on what done means. Describe each feature as what a user does and what should happen, with examples. The developer can then estimate and suggest simpler options.
Should I pay per milestone?
For larger projects, yes. Split the work into milestones with something you can test at each one. It keeps progress visible and limits risk if the project runs into trouble.
Which programming language should be used?
Unless you have a reason, let the developer suggest one, but ask why. Common, well-supported technologies make it easier to find another developer later.
Will I own the code?
Confirm in writing that you receive full rights to the code written for you, delivered in a repository you control. Open-source libraries keep their own licenses, which is normal.
What about hosting and running costs?
Ask where the software will run, who pays for servers and services, and roughly what they cost each month. Keep those accounts in your own name.