A full stack developer can take a feature like “let customers save a delivery address” and build every layer of it alone: the form and its validation in the browser, the API endpoint, the new database column, the login check that stops one customer seeing another’s addresses, and the deployment that puts it live. That breadth is why small product teams hire them first, and why a vague job description for the role attracts so many people who are really strong on only one side.
Below is a full stack developer job description you can copy and adapt, followed by how the role differs at each level, how to test both halves of the stack while screening, the most common mistakes in these listings, and when to hire on contract or permanently.
Full stack developer job description template
Fill in the bracketed parts and adjust the stack to match yours.
About the role
[Company] is looking for a Full Stack Developer to build and own features in [product name], our [web application / platform] for [users]. You will work across our React and Next.js frontend, our Node.js API and our PostgreSQL database, taking features from design handoff to production. You will join a team of [team size] engineers in [city / remote] and work directly with product and design.
Responsibilities
- Build responsive, accessible user interfaces in React and Next.js from designs in [Figma / design tool].
- Design and build REST or GraphQL APIs in Node.js that the frontend and other clients rely on.
- Design database schemas and write migrations in PostgreSQL [or MongoDB], keeping data consistent as features change.
- Implement authentication and authorisation, including sessions or tokens and per-user access rules.
- Handle form validation on both the client and the server, so bad data never reaches the database.
- Write tests at the right level: component tests for UI, integration tests for APIs, a few end-to-end tests for key journeys.
- Deploy features through our CI pipeline using Docker on [AWS / cloud platform] and watch them after release.
- Diagnose problems that cross layers, such as a slow page caused by an unindexed query.
- Take part in code review and keep shared components and API contracts tidy for the rest of the team.
Requirements
- [X]+ years building web applications in production, with work on both frontend and backend.
- Strong TypeScript or JavaScript, used on both the client and the server.
- Solid React experience, including hooks, state management and component design.
- Experience building APIs in Node.js with a framework such as Express, NestJS or Next.js route handlers.
- Working SQL knowledge: joins, indexes and reading a query plan.
- Understanding of web security basics such as XSS, CSRF, SQL injection and secure password storage.
- Experience shipping through Git, pull requests and a CI pipeline.
Nice to have
- Experience with server-side rendering and caching in Next.js.
- Familiarity with MongoDB or another document database.
- Experience with Tailwind CSS or a component library and design system.
- Basic infrastructure knowledge: Docker, environment configuration and cloud hosting on AWS.
What we offer
- [Salary range and any bonus or equity].
- [Work mode and location].
- [Benefits such as health insurance, learning budget, equipment].
How the full stack developer role changes by level
Junior full stack developer. Usually stronger on one side, often the frontend, and learning the other. They build screens and simple endpoints against an existing schema, with a senior reviewing database changes. The job description should be honest that they will be supported and should ask for one side done well plus curiosity about the other, rather than pretending they will own everything.
Mid-level full stack developer. Owns a feature across every layer without help: proposes the schema change, writes the migration, builds the API and the UI, and adds the tests. They notice when a frontend shortcut will create a backend problem later. Requirements here should name your actual stack and ask for examples of features shipped end to end.
Senior full stack developer. Makes structural choices for the whole application: how state is shared between client and server, how the API is versioned, when to split a service out, how authentication works across apps. They set the conventions juniors follow and review the risky changes. At this level, ask for evidence of migrations or rewrites they led on a live product with real users.
Skills that matter most and how to check them
The main risk with this hire is a candidate who is strong on one layer and thin on the other. Your screening has to test both and the join between them.
- A small end-to-end task. Ask for a tiny app: a list of items a logged-in user can add to and delete from, with a database behind it. Review the schema, the API shape and the UI together. It reveals more than separate frontend and backend rounds.
- Data modelling. Ask them to sketch tables for “users can belong to several teams and have a different role in each”. Weak candidates put a role column on the user table.
- Security across layers. Ask: “The frontend hides the delete button for non-admins. Is that enough?” The answer you want is no, the API must check permissions too.
- Debugging across the stack. Describe a page that loads slowly and ask where they would look first. Good candidates check the network tab, the API timing and the query before rewriting components.
- Frontend craft. Ask how they would handle loading, empty and error states for a list. Listen for accessibility and responsive layout without prompting.
Common full stack developer job description mistakes
- Asking for three frontend frameworks and three backend languages. Nobody is strong in React, Angular, Vue, Java, Python and Go at once. Fix: name the one frontend and one backend stack you use and accept equivalents.
- Using “full stack” to mean “do everything”. If you also expect DevOps, design and data engineering, you are describing several jobs. Fix: list the layers this person truly owns and say who handles the rest.
- Leaving out the database. Many listings only mention the frontend and an API framework. Fix: name the database and say whether they will design schemas or only query them.
- No signal about the split. Candidates want to know if the work is mostly frontend or mostly backend. Fix: give a rough description, such as “most of your time will be on API and data work, with some UI”.
- Skipping security. A full stack developer often owns login and permissions. Fix: name authentication and access control as a responsibility so candidates take it seriously.
Contract, contract-to-hire or permanent
Hire a full stack developer on contract when you need an MVP or internal tool built fast and the scope is clear. One developer who can cover every layer is efficient for a project like this, and a contract keeps the commitment matched to the project.
Contract-to-hire is useful because full stack strength is hard to judge in interviews. Watching someone ship real features across your stack for a few months tells you which side they are truly comfortable on.
Go permanent when the developer will hold knowledge of how your whole application fits together, which is expensive to lose. Zilo AI can help you hire full stack developers in India on contract, contract-to-hire or permanent terms, screened on real code, API and data design and testing habits. For backend, frontend or DevOps roles, see the full list on our IT talent page.
Frequently asked questions
What is the difference between a full stack developer and a backend developer?
A backend developer works on APIs, services and data, and rarely touches the user interface. A full stack developer builds both the interface and the server side of a feature. Hire full stack when features are small and one person can carry them through; hire backend when the server side is complex enough to need a specialist.
Which tech stack should I put in a full stack developer job description?
The one you actually use. If you run React with Node.js and PostgreSQL, say exactly that. Listing several alternative stacks makes the role look undefined and pulls in mismatched applicants.
Can a full stack developer also manage deployments?
Often, yes, for straightforward setups such as a Docker container on a managed cloud service. For complex infrastructure with many services, Kubernetes and strict uptime needs, a DevOps engineer is a better fit.
What does a full stack developer do day to day?
A typical day mixes building a feature across the UI, API and database, reviewing a colleague’s pull request, fixing a bug that crosses layers, and talking with a designer or product manager about the next piece of work.
If you would prefer Zilo AI to find and screen full stack developers for your team, tell us your stack and how the work splits between frontend and backend. Contact Zilo AI to get started.