After 5+ years of freelancing and talking to hundreds of potential clients, I know exactly which questions separate founders who hire well from those who end up disappointed. Here are the 10 questions you should ask any freelance developer before signing a contract — along with what good and bad answers look like.
## Question 1: "Can you show me a project similar to mine?"
**Why it matters:** Relevant experience is the single strongest predictor of project success. A developer who has built 5 SaaS platforms will build yours in half the time and with better architecture than someone doing it for the first time.
**Good answer:** "Yes, here is [specific project]. It had similar requirements — [details]. Here is what I learned from it that applies to your case."
**Red flag:** "I have not built exactly that, but I can learn quickly." Learning on your budget is expensive.
**Scoring:** Full portfolio match = 10 points. Partial match = 5 points. No relevant experience = 0 points.
## Question 2: "How would you architect this project?"
**Why it matters:** This reveals technical depth without requiring you to be technical. A good developer will think out loud about trade-offs.
**Good answer:** "For your use case, I would use [framework] because [reason]. The database would be structured as [brief explanation]. For the API, I would use [approach] because [trade-off consideration]."
**Red flag:** "I will figure that out once we start." Architecture decisions made on the fly lead to rewrites later.
## Question 3: "What is your estimated timeline, and how did you arrive at it?"
**Why it matters:** The breakdown matters more than the number. A developer who can decompose the project into milestones understands its scope.
**Good answer:** "Based on the requirements, I estimate 4–6 weeks. Here is the breakdown: authentication system — 3 days, core features — 2 weeks, integrations — 1 week, testing and deployment — 3 days. The range accounts for unknowns in the API integration."
**Red flag:** "About a month." No breakdown means they have not thought it through.
## Question 4: "How do you handle scope changes?"
**Why it matters:** Every project has scope changes. The process for handling them determines whether changes cause delays and budget overruns or are managed smoothly.
**Good answer:** "I document the original scope clearly. When changes come up, I assess the impact on timeline and cost, send you an updated estimate, and we agree before I implement. Small changes within reason I absorb. Significant changes get a mini-proposal."
**Red flag:** "We will deal with it as it comes." This leads to disputes about what was included.
## Question 5: "What is included in your price?"
**Why it matters:** Hidden costs are the number one source of budget surprises. Get everything in writing.
**Good answer:** "My price includes: development, basic UI (or integration with your design), deployment to your server, documentation, and 30 days of bug fixes. Not included: graphic design, content writing, third-party API costs, and hosting fees. Here is what those typically cost."
**Red flag:** "Development." Too vague. Does it include deployment? Testing? Bug fixes?
## Question 6: "How will you keep me updated on progress?"
**Why it matters:** Communication failures kill more projects than technical failures. Establish the cadence upfront.
**Good answer:** "I send a weekly update every [day] with what was completed, what is next, and any blockers. For urgent items, I message via Telegram/Slack immediately. You will have access to a staging environment to see progress in real time."
**Red flag:** "I will send you the final product when it is done." Four weeks of silence followed by a delivery that misses the mark.
## Question 7: "What happens if you cannot finish the project?"
**Why it matters:** Life happens. Illness, emergencies, burnout. Knowing the exit plan protects both sides.
**Good answer:** "My contract includes a termination clause. If I cannot continue, you receive all code and documentation completed to date. I use Git, so you have full version history. I can help find a replacement developer and brief them."
**Red flag:** "That will not happen." Overconfidence about never having problems is itself a problem.
## Question 8: "Can I see your code quality?"
**Why it matters:** Clean code is easier to maintain, extend, and hand off. Messy code creates technical debt that costs more to fix than the original development.
**Good answer:** "Here is my GitHub profile. This [repository] shows my code style. I follow [PEP 8 / specific style guide], write docstrings for complex logic, and include basic tests."
**Red flag:** "My code is proprietary / under NDA." While some work is genuinely confidential, a developer with zero public code is harder to evaluate.
## Question 9: "What is your payment structure?"
**Why it matters:** Payment structure aligns incentives. Milestone-based payments protect both sides.
**Good answer:** "30% upfront to start work, 30% at the midpoint milestone (working demo), 40% on final delivery and your acceptance. I do not ask for more than 30% upfront because you need to see progress before committing more."
**Red flag:** "100% upfront" or "50% upfront with the rest on completion" with no intermediate milestones. The first is a major risk. The second gives you no leverage during the crucial middle phase.
## Question 10: "What do you NOT do well?"
**Why it matters:** Self-awareness is the mark of a professional. Every developer has weaknesses, and the good ones are honest about them.
**Good answer:** "I am a backend specialist. I can build a functional UI, but if you need pixel-perfect design, you should work with a designer. I also do not do native mobile apps — I focus on web and API development."
**Red flag:** "I can do anything." Nobody is equally good at everything. A developer who claims otherwise is either exaggerating or has not done enough work to discover their limitations.
## Scoring Framework
Use this scoring to compare developers:
| Category | Weight | Score (0–10) |
|----------|--------|-------------|
| Relevant portfolio | 30% | |
| Communication quality | 25% | |
| Technical depth | 20% | |
| Process maturity | 15% | |
| Pricing transparency | 10% | |
| **Total** | **100%** | |
A developer scoring 7+ across all categories is a strong hire. Below 5 in any category — especially communication or relevant experience — is a warning sign.
## The Meta-Question
Beyond these 10 questions, pay attention to one thing: **does the developer ask YOU questions?** A developer who listens to your requirements and immediately quotes a price has not understood the project. A developer who asks clarifying questions about your users, your business model, and your success criteria is the one who will build the right thing.
## My Approach
When potential clients contact me, I spend the first 30 minutes asking about their business — not their technical requirements. I want to understand who their users are, what problem they are solving, and what success looks like. Only then do I discuss architecture, timeline, and pricing. This approach has led to 15+ successful projects and long-term client relationships.
If you are evaluating developers for your project, I am happy to have a free consultation — even if you end up choosing someone else. Understanding your project well enough to give honest advice is part of my process.
Frequently Asked Questions
What are typical hourly rates for freelance developers in Europe?
Junior developers charge EUR 30-50/hour, mid-level EUR 50-80/hour, and senior developers EUR 80-150/hour. Fixed-price projects are often more predictable for both sides.
How do I evaluate a freelance developer portfolio?
Look for projects similar to yours in complexity and tech stack. Ask for live URLs you can test. Check if they built the entire project or just one component. Request references from past clients.
What are the biggest red flags when hiring a freelance developer?
No portfolio or only tutorial projects, unwillingness to sign a contract, unclear communication, and promising unrealistic timelines. A good developer will say no to unreasonable deadlines.