The same providers serve San Francisco as serve the rest of California, so the real question is not who is local. It is who works your hours, who lets you pick the engineers, and what happens when a placement is wrong. US demand for Full-Stack providers concentrates on React and Node.js, and that is where a shortlist should be judged rather than on framework familiarity. The shortlist below separates providers on how they handle Full-Stack work that already exists, because inherited code is where most of these engagements actually start.
developer role spanning front end and back end
A full stack developer works across both the front end a user sees and the back end that serves it, typically covering the interface, the API, the database and enough deployment knowledge to ship.
The value is fewer handoffs on small teams, and the trade-off is depth, so it matters which half of the stack a given candidate is genuinely strong in.
Full stack is the right shape for small teams and early products. As a team grows, specialisation usually beats breadth, so hire for the phase you are in.
Entry 01 is ours and is marked as such. Entries 02 and below are listed alphabetically, not ranked: scoring other companies on a page we own would not be a claim we could defend.
Best for: Companies that want US-hours coverage and EU engineering standards without paying a full onshore agency rate. Startups backed by our clients have raised over $120M, and the group has delivered 350+ client projects.
In San Francisco: engineers work San Francisco business hours from our US and EU teams, with delivery capacity in Vietnam for the work that runs overnight. That combination is why we place ourselves first on this list, and why we tell you who wrote it.
Trade-off: We are a marketplace first: you interview and choose the engineers. If you want a vendor to absorb the whole problem with no involvement from you, a traditional agency is a closer fit.
Disclosure: HireDeveloperUSA.com is operated by Digital Unicorn, so this entry is our own. Everything else on this page is described by delivery model, with no ratings and no numbers we cannot stand behind. See what we have shipped.
Best for: US companies prioritizing time-zone overlap
Trade-off: Team composition is proposed by the vendor rather than picked by you
Best for: Scaling a dedicated team over several quarters
Trade-off: Minimum team sizes make small engagements awkward
Best for: Consumer-facing product work with design and engineering bundled
Trade-off: Studio model assumes you buy the full package rather than individual engineers
Best for: Enterprise applications with long support horizons
Trade-off: Traditional services model rather than embedded engineers
Best for: Long-running maintenance and feature work
Trade-off: Fully remote model, less suited to on-site requirements
Best for: Product engineering with a European delivery base
Trade-off: Less suited to US-hours-only requirements
Best for: Cost-sensitive custom builds with defined scope
Trade-off: Time-zone overlap with US teams requires a shifted schedule
Best for: Short senior engagements where speed matters more than rate
Trade-off: Among the more expensive marketplace options, and minimum commitments apply
Best for: Scaling several remote engineers at once
Trade-off: Matching is heavily automated, so screening depth varies by role
Best for: Startups scaling engineering after a raise
Trade-off: Positioned for funded companies, priced accordingly
Ask what the last hard problem in Full-Stack looked like. The answer should involve React or TypeScript, a constraint they did not choose, and a trade-off they accepted deliberately. Teams that have only built greenfield Full-Stack tend to underestimate what maintaining it costs.
On price, vetted full-stack developers bill roughly $40 to $145 per hour, against $120 to $225 at an agency for the same work with a delivery layer on top. If you have a technical lead with capacity, the marketplace rate is the honest comparison and the agency premium buys management you already have. If you do not, the premium is rational rather than wasteful, and the question becomes which provider will actually make decisions instead of relaying them.
Red flags that should end the conversation
Vetted engineers bill roughly $40 to $145 per hour depending on seniority, agencies $120 to $225, and a full-time hire runs $105,000 to $180,000 in base salary. The rate guide breaks down what moves the number.
Yes, and it is the more common engagement. Expect an assessment first: reading the code, measuring what is slow or fragile, and agreeing what stays. Anyone who proposes a rewrite before that assessment is quoting the version of the project that fails most often.
Hire directly in San Francisco
Vetted engineers matched to your stack and your hours in 48 hours. $0 until you hire.
🇺🇸 Trusted by companies across the United States