JavaScript London in Collaboration with NewDay

Hi JavaScript London,

London's biggest JavaScript meetup is back, and this time we're at NewDay's offices in King's Cross. Grab a slice, grab a drink, and come spend an evening with some of the best JS engineers in the city. 🍕🍻

Address: 7 Handyside Street, London, N1C 4DA

Registration — Please register via Meetup and also via the website, as we need a list of attendees on the night. 👉 https://www.javascriptlondon.com/

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Talks:
Talk 1: Whitney, David - Director, Architecture NewDay -
Topic: Wild Typescript!

Talk 2: Adib, John - Engineering Manager Zapp
Topic: The Compound Effect of Guardrails in the Era of AI

Talk 3a: Khani, Elham - Engineering Manager NewDay
Topic: Managing the PIP process

Talk 3b: Rajaratnam, Roger - Staff Engineer NewDay
Topic: Playwright E2E testing AI skills

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Full Agenda:

• 6:00 PM: Doors Open. Grab a pizza slice, sip a beer, and start chatting with other attendees.
  6:30 PM: Welcome remarks by Sam, Richard and Justin
  6:35 PM: First talk
  7:05 PM: Toilet break
  7:15 PM: Second talk
  7:45 PM: Third talk
  8:15 PM: Closing remarks and an optional pub visit!

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Directions to NewDay: Closest station: King's Cross St. Pancras

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Sponsor: NewDay
NewDay is a London-based consumer credit technology company on a mission to help people move forward with credit. Founded in 2000 and headquartered in King's Cross, NewDay operates a highly scalable in-house digital platform that powers credit products for close to six million UK customers — from their own brands like Aqua, Fluid, and Bip (the UK's first digital-only credit card) to co-branded partnerships with household names including John Lewis & Partners, Amazon, and AO.

What sets NewDay apart is its proprietary credit decisioning capability, which allows it to responsibly say yes to customers often underserved by traditional high street banks. Over the past year the business has grown gross receivables to over £5 billion — up 21% year on year — and reported a 30% increase in underlying profit before tax, underpinned by a string of major deals including the acquisition of the Argos Financial Services card portfolio for £754 million in early 2025.

Backed by Cinven and CVC, and with KKR joining as a new strategic partner in 2025, NewDay is one of the UK's most ambitious and fast-growing fintech businesses — combining deep data science, modern engineering, and a clear social purpose to reshape the future of consumer credit.