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Work at 3di

Being part of the 3di team guarantees you work for a variety of customers and exercising your talents with us makes for some of the richest work experience possible. You’ll use a range of tools, apply some powerful methods, and get to explore some fascinating products. These will include scientific instruments, software applications, complex machinery and consumer electronics.

We offer you challenges, learning experiences, independence, and a great team of colleagues to support you. Whether you are experienced, or just getting started, we are looking forward to meeting you.

If this sounds like somewhere you would like to work, apply for one of our open positions below, or submit your CV for Freelancing opportunities.

Currently open positions

Freelance technical writing work

We always need to add to our team of freelance writers. 3di delivers outsourced technical writing services to global businesses, with an in-house team of 40 based in the UK and Poland. We use specialist freelancers to enable us to flex and deliver to our customers’ high standards. We’ll make sure we can work together successfully and then begin to develop long-term relationships so you can contribute as part of the 3di team across a variety of customers.

Get in touch if you can provide the following:

  • Excellent written English and some form of writing or English language training or qualification.
  • Technical background in at least one of the following: software development, software programming, mathematics, AI-related technologies, robotics-related technologies, electronics engineering.
  • 3+ years of technical writing experience in at least one of the following: developer and API documentation, docs as code, software user help, embedded user assistance.
  • Experience with at least one of the following tools or technologies: DITA, Markdown, RST, Flare, Confluence.
  • 15+ hours a week of availability.
  • Ideally, actively engaged in membership of a professional technical writing peer group or professional association such as the ISTC, STC, Tekom, or Writethedocs.

Due to the geographical spread of our customer projects and the current necessity to work remotely, in the majority of cases location is not important. If you are interested, click the link below.

Have questions about freelancing at 3di?

Commercial arrangements with freelancers and service sub-contractors

3di has an in-house team. We also have a network of 3di Associates based around the world: we use the expertise of self-employed freelancers or specialist companies to deliver our services to customers. The nature of 3di customer assignments vary but the way we work with 3di Associates will be consistent depending on what type of service the 3di Associate delivers: technical authoring, translation, consulting, web development, graphic illustration, localization Q&A.

For those companies or freelancers (3di Associates) that need to comply with UK tax rules: we regularly assess the way we work and contract with 3di Associates against the UK Government’s HMRC Guidance. According to our latest (July 2023) HMRC Determination, “Off-payroll working rules (IR35) do not apply” because 3di Associates work on a business-to-business basis.

Becoming a 3di Associate does involve us checking that the business relationship is going to work. We will assess the quality and relevance of what the company has done before, and understand if there is anything that might compromise 3di services to customers. The potential 3di Associate will need to ensure they have invested in, and can deploy efficiently, the necessary hardware and software to handle the latest cloud-based and locally-hosted applications.

For each project, we will agree either an hourly rate or a fixed price for the work, and the 3di Associate will invoice us at agreed milestones or intervals. Our payment terms are 30 days from date of invoice.

3di will provide clear guidance about what is expected from the 3di Associate so that they make the contribution to 3di’s service we need. This will cover the scope and quality of the work, and the processes, tools and progress communication. 3di Associates are responsible for delivering to the quality of service agreed, meeting delivery milestones, and for correcting errors at their own cost.

We welcome applications from freelancers or specialist companies worldwide and look forward to establishing long-term relationships that work well for our 3di Associates, the 3di team and our customers. If you are interested, contact us at

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