When you need more engineering capacity, the first question is not "who" but "how". Contract vs dedicated developers is the most common choice, but dedicated teams and fixed-scope projects are also on the table. Each model changes who owns the work, how you pay and how much management your team needs to provide.
The four common engagement models
Contract developer
An engineer engaged for a defined period or number of hours — for example 20 hours a week for three months to deliver a set of features or fill a skills gap. Billing is usually hourly or monthly.
Dedicated developer
A full-time engineer who works only on your product, attends your meetings and follows your process, while the provider handles employment, equipment and administration. Engagements are ongoing, typically on a rolling monthly basis.
Dedicated team
Several dedicated engineers — for example backend, mobile and front-end — often with a technical lead who coordinates delivery with your product owner.
Project-based development
The provider delivers an agreed scope, such as an MVP or a migration, owning planning and delivery against milestones.
Side-by-side comparison
| Contract | Dedicated | Project-based | |
|---|---|---|---|
| Best for | Deadlines, skills gaps, variable workload | Ongoing product development | Well-defined scope and outcome |
| Who directs the work | You | You | The provider, against agreed scope |
| Commitment | Weeks to months | Months to years | Until the scope is delivered |
| Cost model | Hourly or monthly | Monthly | Fixed price or milestones |
| Knowledge retention | Needs deliberate handover | High | Depends on documentation and handover |
| Management effort for you | Medium | Medium to high | Low to medium |
When to choose a contract developer
- You have a release deadline and your team is at capacity.
- You need a specialist skill for a limited time — for example a .NET Framework migration or adding AI features.
- The workload is variable or part-time.
- You want to test a working relationship before committing further.
When to choose dedicated developers
- You have a product roadmap measured in quarters or years.
- You want engineers who build deep knowledge of your codebase and domain.
- You have technical leadership in-house to set direction and review work.
- You want to grow capacity without the time and cost of local permanent hiring.
When a project-based engagement is better
If you can describe the outcome clearly — "a working SaaS MVP with authentication, billing and these five workflows" — and you do not have in-house technical leadership, a scoped project may be simpler. Our SaaS MVP development guide explains how to scope one well.
Cost: look at total cost, not the rate
Comparing hourly rates alone is misleading. Include:
- Utilization: a contract developer you use 20 hours a week can cost less than a full-time dedicated engineer you cannot keep busy.
- Ramp-up: every new engineer needs time to learn your system; frequent turnover of contractors repeats this cost.
- Management time: contract and dedicated models both need your team to prioritize and review work.
- Hiring cost and time you avoid compared with recruiting permanently.
How to make either model work
- Write down responsibilities: who prioritizes, who reviews code, who approves releases.
- Agree working hours and overlap with your time zone up front.
- Give access to the same tools your team uses — repositories, tickets, chat.
- Set a review point after the first month to adjust scope or model.
- Put IP ownership, confidentiality and notice periods in the written contract.
Key takeaways: choose contract for short or variable needs, dedicated developers for ongoing product work with in-house leadership, and project-based delivery for well-defined outcomes. Compare total cost, not hourly rates.
Explore our contract software developers and dedicated developers, or read how to hire a .NET developer.
