A frontend developer owns the screens your users judge the product by

It depends on where features wait. If the API is ready and screens lag behind it, or users struggle with what is already there, hire for the front end. If every feature needs a new table, an endpoint and a screen, and nobody owns how they meet, a full-stack developer is the better fit. Many products need the second first and the first later.

Within limits. The developer builds from an existing component library and your brand's colours and type, and shows each screen working before the details are polished. Small screens and variations of existing ones need no designer. Deciding how a new product should look and feel still does, even part-time, and we will say so rather than guess.

Yes, without pausing feature work for a rewrite. New screens are written in the current framework and mounted inside the old app, route by route, while the old code keeps serving the rest. Each route moves with its tests, and the old app shrinks until nothing of it is left to load. We will not propose a rewrite from scratch by default.

With the technical half, yes: pages rendered on the server, a title and description per page, structured data, clean URLs and load speed on mobile. Those decide whether search engines can read and rank what you publish. Keywords, content and links stay with whoever runs your marketing; the developer makes sure nothing in the code works against them.

Usually, though we will not promise a score before anyone has measured. The developer starts from real users' data, not a lab test on a fast laptop, and finds what blocks loading: oversized images, third-party scripts, fonts, or one bundle for every route. A performance budget then runs on every pull request, so the speed does not drift back as features land.

For what they build and fix, yes. The developer audits against WCAG 2.2 AA with automated checks and, more importantly, by hand with a keyboard and a screen reader, because tools catch only part of the problems. Fixes are ordered by the users each one blocks. If a tender needs a formal conformance report, an independent auditor should sign it, not the developer who made the fixes.

Yes. Most of our recent client work runs on React, Next.js and Vue, written in TypeScript, and each profile names the frameworks the person has shipped in. The developer joins in whatever your product runs and does not propose a switch without a reason you can check. If your product runs on a framework we do not staff, we say so before sending profiles, and recruitment against your requirements is an option.

Your whole team, because it lives in your repository with its stories, design tokens and approved screenshots. It can be published as a package your other apps install, so the next developer starts from the components rather than the design file. Decisions about naming, states and tokens are written next to the code as the work happens, not in a handover document at the end.

Yes. Many clients start with one senior engineer to cover a specific capability or capacity gap, then add specialists only when the roadmap requires them.

Yes. Adding an engineer follows the same route as the first, and you interview them. Reducing the team follows the notice period agreed in the contract, and the work is handed over in your repository before anyone leaves.

Yes. You manage priorities and day-to-day work directly, in your own channels and delivery process.

Yes. You interview every candidate using your own process and make the final decision about who joins the team.

Our engineers are ImproveIT employees and long-term contractors working through our teams in Poland and Ukraine. We are not a freelance marketplace and do not resell developers from other vendors.

Replacement terms are defined in the contract upfront, so it does not become a negotiation.

You do. IP assignment is included in the contract, and we can sign an NDA before discussing the project.

We sign an NDA before discussing the project, and confidentiality and IP assignment are part of the contract. Engineers work in your repositories, cloud accounts and tools with the access your team grants, so you can narrow or revoke it at any time.

Yes. Our engineers work with teams across Europe and the US. We agree the required working-hour overlap before matching candidates.

Our developers work in English with international product and engineering teams every day. English level is included in the candidate information you receive before the interview.

Rates depend on the role, seniority, experience, and engagement model. You receive the rate, availability, and candidate profile in writing before making any commitment.

Both are agreed before the engagement starts and included in the proposal and contract. We are flexible in that and usually agree on the terms suitable for a client.