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Frequently Asked Questions

Who are Deltastring Ltd?

Deltastring Ltd are platform engineering specialists based in London, led by Rosie Elliott-Welch and Nico B. Boyce.

Deltastring leadership at Geckoboard. Deltastring leadership at Geckoboard.

We’re the technical specialists that major CX agencies and consultancies hire for complex platform engineering work on enterprise accounts. We provide migrations, automations, integrations, and custom applications.

Is Zendesk down?

Maybe, take a look at is Zendesk down for details of current outages and bookmark our Zendesk news today page to keep on top of it all!

Tell me more about Rosie Elliott-Welch

Rosie Elliott-Welch is an experienced business operations professional and founder of Deltastring Ltd. Rosie’s background is in the world of retail, leading relocations and running projects at head office. Most recently, Rosie has been working in outsourced government contracts, focused on forecasting and using big data to mitigate risk in outcomes.

Rosie’s specialisms are in people and processes, as well as using business intelligence to reveal actionable insights.

Tell me more about Nico B. Boyce

Nico B. Boyce is a Zendesk engineer and a founder of Deltastring Ltd, a growing business operations consultancy. He has been writing software since the mid nineties, starting out with a scavenged Zenith SupersPort, an Amstrad PC1512, and a Nokia 2110. An early project was refactoring an ELIZA implementation, found on an unlabeled 5¼” floppy, over to TI Basic. Is there anyone else in the Zendesk space approaching thirty years building chatbots?

Unlike most specialists in this sector, Nico has a background in Python and data. He is primarily focused on the Zendesk API and building integrations between systems. He has built out Ultimate AI, Zapier, Salto, and custom integrations for clients. He has experience with Salesforce Service Cloud, Freescout, Bolddesk, Gorgias, and other Zendesk alternatives. The project he worked on implementing Ultimate AI with Zendesk chat at HyperJar has been extensively referenced as a case study.

Where are Deltastring based?

We are based in London, UK. We work remotely with clients across the UK, Europe, and globally.

We do not take ad hoc meetings at our office, but you are welcome to book a virtual meeting to discuss your business needs.

Are you hiring?

Sometimes! Check our careers page and find out.

Do you work with US companies?

Yes, we regularly work with American businesses. We provide W8 forms, bill in USD, and coordinate across timezones. See our US customers page for full details on working with US companies.

Can I book the Deltastring team to speak on my podcast or at my event?

We always welcome such opportunities. Nico has appeared on CBC Radio 1 and local broadcast media in Hampshire, collaborated with General Motors and the Petersen Museum, and sold a podcast format to a global media business. Recently team Deltastring recorded a conversation with our friends at Geckoboard.

Please email such requests to hello@deltastring.com and we’ll get back to you.

What’s the gradient tool about?

Whilst building this website, Nico developed a new method for colour gradients that sits between traditional RGB linear gradients (which fade through muddy grey-brown midpoints) and LCH gradients (which rotate around colour space but are too vivid). The technique blends both approaches, rotating the hue but with increased gravity towards destaturation. A 65-70% blend produces gradients that are vivid but not garish. Try the gradient comparison tool yourself - works best in Chrome due to Firefox’s reduced colour space support.

Where else can we find you on the internet?

You can connect with Nico on LinkedIn and Rosie on LinkedIn.

Follow our company page on LinkedIn.

You can watch our videos on YouTube.

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What happened in Zendesk this week

Platform changes, security updates, and honest opinions from someone who builds on Zendesk every day. One email, Fridays.


What do people say about Nico B. Boyce and Deltastring Ltd?

“Delivered on time, on budget, in deep partnership, improving the daily work for our care partners, directly impacting the experience of our merchants” —VP Experience at Checkout.com

“London’s best teacher of Zendesk” —Systems Manager at HyperJar

“A powerful source of knowledge in the Zendesk community” —Zendesk User Group UK and Ireland leader

“The sole person in Operations we trust with Write access to the Git” —Director of Operations at Etsy brand Depop