InstaTalent
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Hire full-stack developers who already passed an interview.

Full-stack developers ship features end to end: the interface, the API behind it, the data model and the deployment. They suit small teams that need one person to own a feature from idea to production. Every full-stack developer on InstaTalent took a 25-minute spoken interview pitched at their level, and a person on our team reviewed it before the profile went live.

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  • 25-minute spoken interview
  • Pre-vetted: AI-interviewed, human-reviewed
  • Salary and availability up front
  • Pay only when a candidate says yes

When to hire a full-stack developer

  • You are an early team and need one engineer who can build a whole feature without hand-offs.
  • Your frontend and backend developers keep waiting on each other.
  • You have a product to build or rebuild and want someone who understands every layer of it.

Skills you’ll find

ReactNext.jsNode.jsTypeScriptPythonPHP and LaravelPostgreSQLREST APIsAuthenticationDeployment

What every profile shows

  • Interview result by skill
  • Level and experience
  • Skills and headline
  • Estimated English level (CEFR)
  • Salary range (USD / month)
  • Availability and notice
  • Time zone and work arrangement

Names show as first name and initial. Contact details, CV and the interview recording are shared once the candidate accepts your introduction.

{The interview}

How we interview full-stack developers

A 25-minute spoken interview with our AI interviewer, pitched at the level the candidate chose. Questions are drawn at random for each interview and followed up with questions about the candidate’s own work, so answers can’t be rehearsed. Each skill is scored against written anchors for that level, and a person on our team reviews the interview before the profile goes live.

  • 40%

    Experience and behaviour

  • 40%

    Spoken technical questions

  • 20%

    Spoken English (CEFR estimate)

What we assess, by level

The same four skills at every level, with the bar set for that level. These are the standards our interviewer scores against and what a strong answer looks like.

Junior full-stack developer

About 0–2 years, including first jobs, internships, bootcamps and self-taught

Frontend engineering
Builds usable interfaces: splits screens into components, manages basic state, calls APIs and handles loading, error and empty states, builds forms with validation, and knows the basics of responsive layout and accessibility.
Strong: Built the whole frontend of a small app themselves; explains its structure, state and loading and error handling clearly, and why they chose that approach.
Backend and data
Builds simple server logic: REST-style endpoints, validating requests on the server, basic database design and queries, keeping secrets out of code and returning useful errors.
Strong: Built the API and database for a small app themselves; validates input on the server, connects related data sensibly and explains why.
Building end to end
Connects a frontend, an API and a database into a working app: understands the request flow, basic login, deployment, Git, debugging across layers and checking their own work.
Strong: Has shipped a complete small app with a frontend, an API and a database, deployed it, and explains clearly how the pieces fit and how they found bugs across them.
Ownership and collaboration
Communicates clearly, asks for help at the right time, takes feedback well, learns independently and works well with others, including remotely.
Strong: Proactive learner who clarifies unclear tasks, shares progress and problems early, and gives concrete examples of growing from feedback.

Mid-level full-stack developer

About 2–5 years of professional work

Frontend engineering
Builds production-quality UIs: component structure, client versus server state, data fetching, loading and error handling, forms, accessibility, frontend performance and testing.
Strong: Makes deliberate choices about state, data fetching and component boundaries, handles edge states by default, has measured and improved real performance, and explains trade-offs unprompted.
Backend and data
Designs APIs around the frontend's needs, models data sensibly and writes reliable server logic: validation, error handling, query performance, background work and changing APIs without breaking clients.
Strong: Designs APIs and data models that hold up as the product changes; thinks about paging, indexes, versioning and failure cases, with real examples.
Building end to end
Delivers features across the stack: authentication and sessions, permissions, testing on both sides, CI and deployment, and debugging and performance work that crosses layers.
Strong: Owns features from screen to database to production; reasons clearly about auth, permissions, testing and performance across layers, and learns from incidents.
Ownership and collaboration
Takes responsibility for features end to end, gives and receives code review well, works closely with design and product, estimates and communicates clearly, including remotely.
Strong: Drives outcomes beyond their own task, raises problems early with options, resolves disagreements with evidence and improves how the team works.

Senior full-stack developer

5+ years, including leading work or mentoring others

Frontend engineering
Shapes frontend architecture for products and teams that keep changing: component and state strategy, rendering and data-loading choices, performance, accessibility, shared components and long-term maintainability.
Strong: Has shaped a frontend many people build on; makes deliberate trade-offs on rendering, state and performance, and explains how they kept it consistent and maintainable over time.
Backend and data
Designs backends and data that scale and stay reliable: API design and evolution, data modelling and migrations, consistency, security, observability and service boundaries.
Strong: Reasons clearly about scaling, consistency, security and observability with real examples; explains the trade-offs they made and what they would change.
Building end to end
Designs and leads work across the stack: where logic lives, authentication and authorisation, testing and delivery pipelines, developer experience, cross-layer performance and incident handling.
Strong: Designs whole systems with clear boundaries, makes the team faster and safer through tooling and process, leads cross-layer investigations and turns incidents into lasting improvements.
Ownership and collaboration
Leads technically and supports others: mentoring, influencing decisions, balancing product needs with technical risk, and communicating clearly across functions and time zones.
Strong: Raises the level of the team: grows people, builds agreement on difficult decisions, balances speed and quality openly and works smoothly with distributed teams.

How hiring works

  1. 01

    Browse interviewed talent

    Filter by role, level, interview result, English level, budget, availability and time zone.

  2. 02

    Read the evidence

    See how each candidate did in the interview, their strengths and what to explore next.

  3. 03

    Ask for an introduction

    Share the role and salary range. Candidates answer within 72 hours; a decline costs you nothing.

  4. 04

    Talk directly

    Once they accept: name, contact details, CV and the full interview recording and transcript.

Questions, answered

It depends on the person, which is why the interview scores frontend, backend and end-to-end delivery separately. You see the result for each area, so you can tell whether someone leans frontend, leans backend or is strong across the stack.

Building interfaces, designing APIs and data, connecting them into features that work in production (authentication, permissions, testing, deployment), and ownership and collaboration. Spoken English is estimated too.

Small teams and early products usually move faster with full-stack developers who own features end to end. Larger products with deep frontend or backend problems often benefit from specialists. You can browse both in the directory.

Each candidate takes a 25-minute spoken interview with our AI interviewer, pitched at their role and level. Questions are drawn at random and followed up with questions about their own work, so answers can’t be rehearsed. A person on our team then reviews every interview before the profile goes live. You see bands and evidence, never a ranking by an AI score alone.

The Free plan includes one introduction a month; paid plans include more. An introduction only counts when the candidate accepts it, and there are no placement fees when you hire.

Yes. Every profile shows the candidate’s time zone and how they want to work (remote, hybrid, on-site or open to relocating), and you can filter by both.

You do. The AI gathers evidence and our team checks quality, but every hiring decision is made by people at your company.

Other roles

Meet full-stack developers with the interview already done.

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