Outside IR35 Full Stack Developer Contract Jobs
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.Net Developer/Dot Net Developer; Security cleared, Azure, Rest API
Posted 2 days ago by Vesta Consulting Limited
The role of .Net Developer requires a security-cleared professional with expertise in C# and modern .NET technologies, s...
- Rate £500 per day
- Category Outside
- Work type Hybrid
- Location Taunton, Somerset, UK
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Full Stack Engineer
Posted 3 days ago by Leo Technology
The Full Stack Engineer role involves working with a London-based MedTech company, focusing on enhancing their Azure-bas...
- Rate £425 per day
- Category Outside
- Work type Remote
- Location London; City of London; East London; Central London; South East London; West London; Canary Wharf; South West London; North London; Greenwich; Stratford
Full Stack Engineer
Posted 3 days ago by Leo Technology
The Full Stack Engineer role involves working with a London-based MedTech company to enhance their Azure-based core plat...
- Rate £425 per day
- Category Outside
- Work type Remote
- Location London; City of London; East London; Central London; South East London; West London; Canary Wharf; South West London; North London; Greenwich; Stratford
PL/SQL Developer
Posted 4 days ago by Cadence Resourcing Limited
The PL/SQL Developer role involves joining a support team to manage and resolve incidents within a critical Agresso (Uni...
- Rate Negotiable
- Category Outside
- Work type Hybrid
- Location London; City of London; East London; Central London; South East London; West London; Canary Wharf; South West London; North London; Greenwich; Stratford
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About Our Outside IR35 Full Stack Developer Contract Roles
What does a full stack developer contractor do?
Full Stack Developer contractors are engaged to work across both the front-end and back-end layers of web applications and digital products, taking end-to-end ownership of features or services rather than specialising in a single layer of the stack. The scope of full stack work varies considerably by team and product: some engagements involve building React frontends backed by Node.js or Python APIs; others require working across a .NET or Java backend with an Angular or Vue.js frontend; others involve contributing to a cloud-native microservices architecture alongside a React or Next.js application layer. Full Stack contractors are particularly valued on smaller teams and earlier-stage products where the ability to work across the stack reduces coordination overhead and accelerates delivery.
The technical profile expected of Full Stack Developer contractors is broader than most single-discipline developers, and the market has evolved towards specific stack combinations rather than genuine language-agnostic versatility. The most in-demand full stack profiles in the UK contracting market combine React or Next.js on the front end with Node.js, Python, or .NET on the back end, TypeScript across the stack, and experience with cloud deployment on AWS or Azure. SQL database skills are assumed, alongside familiarity with RESTful API design and increasingly GraphQL. The depth of expertise expected in each layer varies by seniority: junior full stack contractors are expected to be functional across the stack, while senior full stack contractors are expected to be genuinely strong in at least one layer and capable across the rest. Strong software engineering practices including testing, version control, and CI/CD are expected as standard.
What is the market like for full stack developer contractors?
The Full Stack Developer contract market is one of the highest-volume segments of the UK technology contracting market. The breadth of the role makes it attractive to a wide range of clients, from startups who need developers who can work across the entire product to enterprises that want contractors who can contribute to multiple teams without hand-off friction. The JavaScript ecosystem dominates the full stack contracting market, with React, Node.js, and TypeScript being the most commonly specified combination. Rates are broadly aligned with senior frontend or backend developer roles, with the full-stack capability providing breadth of opportunity rather than a rate premium in most cases. Contractors who are genuinely strong in both the front-end and back-end layers of their chosen stack consistently find the broadest range of opportunities.
What does Outside IR35 mean?
IR35 is UK tax legislation that determines whether a contractor is genuinely self-employed or working in a manner that resembles employment. When a contract is classified as outside IR35, the engagement is treated as a business-to-business arrangement. The contractor operates through their own limited company, invoices for services, and manages their own tax affairs including corporation tax, self-assessment, and VAT where applicable.
Outside IR35 engagements are assessed against three key factors: the degree of control the client exercises over how the work is delivered, whether the contractor has a genuine right to provide a substitute, and whether there is a mutuality of obligation between the parties. Contracts that demonstrate contractor autonomy, project-based delivery, and the absence of ongoing employment obligations are more likely to sit outside IR35. Since April 2021, responsibility for making this determination sits with the end client for medium and large private sector organisations.
On QualityContracts.co.uk, approximately 28% of roles with a stated IR35 status are classified as outside IR35. The proportion varies by sector and role type, with some disciplines seeing a significantly higher or lower share of outside IR35 opportunities. Each listing on this page displays its IR35 status where provided by the hiring organisation.
What full stack developer roles are usually Outside IR35?
Full stack development has one of the more balanced IR35 profiles in technology, with around 45% of contracts where status is stated sitting outside. The breadth of full stack work, spanning frontend, backend, and sometimes infrastructure, means engagements are often structured as complete feature builds or product development projects. Digital agencies, product companies, and organisations building greenfield applications offer the most outside IR35 opportunity. React or Angular combined with Node.js or Python backends dominate the technology requirements.
How much do full stack developer contractors usually earn when working Outside IR35?
Contract rates for full stack developer roles typically range from £500 to £850 per day, depending on the scope of the role, required expertise, and the delivery expectations of the engagement. Rates shown are for outside IR35 engagements and reflect the gross day rate paid to the contractor's limited company before any personal tax obligations.
How many Outside IR35 full stack developer vacancies are there on Quality Contracts?
Over the past twelve months, we have tracked over 350 full stack developer contract roles across the site. Of the roles currently listed on our site, around one in four are Outside IR35. Data reviewed up to June 2026.