Node.js Developers in the UK

About Node.js Developers

Node.js and TypeScript are core to how we build, not a service we bolted on last quarter. Hire a senior Node.js engineer or a small backend team to build APIs, real-time systems, and the services behind your product. Flat quotes, direct access to the person writing your code, and no interns billed at senior rates.

What the engagement includes

• A senior engineer full-time on a monthly rolling contract. You set the roadmap and run the standups, we ship against it, and you can stop any month with notice.
• TypeScript by default, on the backend as well as the front, so bugs surface at compile time and the next developer can actually read what shipped.
• Tests and CI as part of the build, not a promise for later: unit and integration tests with Vitest or Jest and supertest, running green in CI before anything merges.
• You own the GitHub repo, the infrastructure, and the deployment from the first commit. Clean handover or exit whenever you want it, nothing locked to us.
• Flat INR quotes with GST for Indian clients, and USD, GBP, CAD, or AED via Wise for overseas teams. W-8BEN and LUT on file, 24-hour response.
• Direct access to the person writing the code. No account-manager layer, no offshore handoff, no junior quietly swapped in after the sales call.

Off-payroll sizes, the April 2026 umbrella rules and agency worker status around a dedicated Node.js engineer

A Node.js backend team often ends up mixed, with a UK contractor working through their own company beside engineers supplied from India, and the off-payroll working rules in Chapter 10 of ITEPA 2003 treat those two people very differently. For the UK contractor, the status decision sits with the client if the client is medium or large, and the Companies Act thresholds behind that test rose for financial years beginning on or after 6 April 2025, to turnover above £15 million and a balance sheet above £7.5 million, with the 50 employee limit unchanged. HMRC's manual explains that a company has to meet the conditions for two consecutive years, and that for a normal twelve month year 2027 to 28 is the earliest tax year the new figures can change a client's position, so a company that crossed the old line may turn out to be small again, depending on its year end. For the engineer in India the manual is clear in a different way. The rules matter only where the worker would be within the charge to UK tax or National Insurance, and someone who is not UK resident and works outside the UK is unlikely to be. It also says the residence of an intermediary has no bearing, so an engineer who invoices through a company registered in India, or one set up in the UK, is judged by where they live and where the work is done, not by where the company sits. That matters on the day a client asks to take a favourite engineer on directly. An engineer employed and paid through an agency's payroll is not the arrangement the rules are written for. The same person contracting through a company they own is, and if they then spend part of the year writing your services from your office, the analysis starts again from the beginning. Which side of those lines a particular engagement falls on is for your accountant.

The rule that took effect this year reads more literally onto staff augmentation than most buyers expect. From 6 April 2026 Chapter 11 of Part 2 of ITEPA 2003 makes the agency that contracts with the end client, or the client itself where there is no agency, jointly and severally liable for PAYE an umbrella company fails to pay. HMRC's definition does not depend on what a firm calls itself: it covers any third person that employs the worker and carries on a business of supplying labour, under a contract with the client or with someone in the chain, and its guidance says an umbrella company includes any business supplying labour under a contract of employment. A company that employs Node.js engineers and assigns them to your team fits those words. The manual adds that where a worker is placed with a UK client by or through a non-UK resident agency, it is the client who is jointly liable, and an older rule in section 689 already treats the person in the UK for whom an employee works as the payer for PAYE where the employer is outside the UK. The sum in question is the PAYE actually due, and for engineers who live and work in India that is normally nothing, which is why the arrangement works as it does. Presence is what changes it. An engineer who flies in for a fortnight to sit with your team through a cut-over of the payments service, or who comes for a longer sponsored assignment while a new event pipeline beds in, can bring UK income tax into those days, and the duty to account for it can fall on you rather than on us. So travel is agreed in writing beforehand with dates, and you are told who is in the UK and for how long, so your payroll team can decide whether anything has to run. Whether a particular visit creates a PAYE obligation is for your accountant.

A visit raises a second question, about employment rights rather than tax. The Agency Workers Regulations 2010 apply to Great Britain, and the government's guidance, updated in March 2026, puts outside them people working on managed service contracts who are not under the host organisation's direction and supervision, and secondees whose employer's main activity is not supplying people to work under someone else's direction. A dedicated engineer is closer to the other end of that scale. Someone who takes tickets from your backlog, joins your stand-up and ships under your engineering manager's review is supervised and directed by you, which the guidance treats as the mark of an agency worker, and the guidance adds that a tribunal looks at the reality of the arrangement rather than its label. While the engineer works from India this is academic, because the regulations are written for Great Britain. It stops being academic if they work from your premises here, which beyond the narrow activities allowed to a business visitor means a sponsored assignment. From the first day of an assignment an agency worker is entitled to the same access as comparable staff to collective facilities, such as a canteen, car parking or a staff room, and to information about vacancies. After 12 calendar weeks in the same role with the same hirer, however few hours a week, they are entitled to the same basic conditions as if recruited directly, including the key elements of pay, working time, night work, rest breaks and annual leave. An engineer on an Indian salary who spends a quarter in a London office under your direction could therefore reach the point where London pay is the comparison. That is why a long UK stint is planned as its own short engagement with its own terms, and why an on-call rota for a production Node service is run from India rather than by flying someone in. How the regulations apply to a given arrangement is for your employment counsel.

How we work with UK clients

UK engagements tend to start with procurement questions rather than technical ones. Who holds the data, which law governs the contract, whether you can produce a record of processing if the ICO asks. We answer those in the proposal instead of leaving them to a legal review three weeks in, because that review is where UK projects usually stall.

Invoicing is the other thing worth settling early. We are outside the UK, so services we supply generally fall under the reverse charge and your finance team accounts for the VAT rather than paying it to us. Our invoices say so explicitly. We quote in pounds, the figure does not move with the exchange rate mid-project, and payment by bank transfer avoids the card fees that make a five-figure invoice unnecessarily expensive.

Questions UK clients ask

Node.js Developers: common questions

Other markets we work in