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Hiring your first software developer feels like a milestone, and it is. It is also where small businesses make some of their most expensive mistakes. A bad hire in a five-person company does not just waste a salary; it stalls the project the business was counting on, burns months of momentum, and often leaves behind code nobody else understands. Most of these mistakes are avoidable. Here are the ones we see most often, and what to do instead.
Hiring a developer before defining the job
The most common mistake happens before any candidate is interviewed. The owner knows they need something technical built and starts hiring, without a clear picture of what the developer will actually do in the first ninety days. The result is a vague job post, mismatched candidates, and a hire who spends their first month waiting for direction. Before you post anything, write down the specific outcomes you need: the system to be built, the problem to be solved, the deadline that matters. If you cannot describe the work concretely, you are not ready to hire for it. Our guide to hiring a software developer in Windsor walks through how to scope the role before you start looking.
Confusing a freelancer, an employee, and a firm
These are three different solutions to three different problems, and mixing them up is expensive. A freelancer suits a well-defined, short-term build. An employee makes sense when you have ongoing development work to fill a full-time role for years. A development firm fits when you need a whole team, designers, developers, and project management, for a defined project without hiring anyone permanently. Small businesses often hire an employee for what is really a three-month project, then wonder what to do with a developer once it ships. Or they hire a freelancer for ongoing work and discover that one person's availability is a single point of failure. Match the engagement model to the actual shape of the work.
Judging candidates on resumes instead of work
A polished resume tells you someone can write a polished resume. In software, the reliable signals are working software and the ability to explain decisions. Ask candidates to walk you through something they built: what the problem was, what choices they made, what they would do differently now. Give strong candidates a small paid trial task related to your actual project, not a puzzle or a trick question. A few hours of paid work reveals more about competence and communication than three rounds of interviews.
Skipping the paid trial
Related to the last point, but worth stating separately because so many small businesses skip it. A short paid project, even just a day or two, answers the questions interviews cannot: can this person understand your business context, do they communicate clearly when stuck, and is their code something another developer could pick up? It also lets the candidate evaluate you. The cost of a paid trial is trivial next to the cost of a bad hire.
Treating technical skill as the only skill
A brilliant developer who cannot explain their work, misses deadlines silently, or dismisses your questions will cost you more than a solid developer who communicates well. For a small business, the developer will talk directly to you, not through layers of management. You need someone who can translate between business problems and technical solutions in plain language. In the interview, notice whether they ask about your business or only about the technology. Curiosity about your operation is one of the strongest predictors of a useful hire.
Hiring the cheapest option
Budget pressure is real, but software is one of the worst places to optimise purely on price. An inexperienced developer at a low rate often takes three times as long and produces code that a future developer has to rewrite, which means you pay twice. That does not mean you need the most expensive candidate. It means you should evaluate the ratio of capability to cost, and be deeply suspicious of rates far below the market. If a quote seems too good to be true, ask what is different about the offer rather than celebrating the bargain.
Having no onboarding plan
Even a great developer fails without context. New hires need access to systems, an explanation of how the business actually operates, and a clear first project with a defined done. Small businesses often hand a new developer a laptop and say let us know if you need anything, then wonder why week three looks like week one. Plan the first two weeks before the start date: accounts and access ready on day one, walkthroughs of the business process the software supports, and a small, shippable first task.
Ignoring ownership and documentation
This is the mistake that hurts years later. If your developer builds critical systems and leaves, what do you actually have? Make sure your agreement covers who owns the code, where it is stored (in your accounts, not theirs), and that basic documentation exists so another developer can take over. Code that only exists on one person's laptop, with no documentation and no handover, is a business risk disguised as an asset. Address it on day one, not on their last day.
Expecting one person to do everything
A single developer is not a designer, a project manager, a security expert, and a support team. Small businesses sometimes hire one person and implicitly expect all of those roles, then blame the developer when design is rough or deadlines slip. Be honest about which skills the role actually needs, and plan for the gaps, whether that means a designer on contract, a firm for the initial build, or simply adjusted expectations. If what you really need is a team for a defined project, a custom web application built by a firm can be more cost-effective than a full-time hire.
Frequently asked questions
Should a small business hire a developer or use a development firm?
It depends on the shape of the work. Hire an employee when you have ongoing, full-time development needs for the foreseeable future. Use a firm when you need a complete team for a defined project, or when you need the project done without building an in-house capability. Many small businesses find a firm more cost-effective for their first major build.
How much does it cost to hire a software developer in Windsor?
Salaries vary with experience and specialisation, but expect a meaningful full-time salary plus benefits, equipment, and onboarding time. Before committing, compare the annual cost against the cost of having a firm build the specific system you need; for a single project, the firm is often cheaper.
What should I look for in a developer interview?
Evidence of finished work they can explain clearly, curiosity about your business (not just the technology), and clear communication. A small paid trial task related to your real project is the single most informative step you can add.
How do I protect my business if a developer leaves?
Keep code in your own accounts from day one, require basic documentation as work is completed, and have a written agreement covering code ownership. These three habits turn a departure from a crisis into an inconvenience.
Hiring your first developer, or wondering whether you need one at all? Describe the project you have in mind and we will give you a straight recommendation, even if the answer is that a firm-built project makes more sense than a hire. Get a free quote.