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Business / products / operations

JDC Ventures & operations.

I’m Jonathan D’Costa, director of JDC Ventures Ltd. I previously managed Jollymart’s suppliers, packaging, Amazon listings, advertising and accounts.

JollySip temperature-display flaskJollySwipe washable lint roller
JollySip / JollySwipeOriginal listing imagery

Director

JDC Ventures Ltd · Frimley · Sep 2026–present

I’m developing early-stage physical and digital products, including Cravate. I became director in September 2026, following the company’s rename from Jollymart Ltd.

I’m exploring additive manufacturing through EcoLayerLabs ↗, an early-stage project under JDC Ventures Ltd.

  • I’m developing a portfolio of products and ventures. I start with a real problem, build a testable solution and refine it against practical and commercial constraints.
  • My focus spans physical products, digital tools and new commercial ventures. I consider design, delivery and operations together.

Sep 2026 – present

Business Operations Manager

Jollymart Ltd · Frimley

I ran operations for a UK-registered limited company from age 15: wholesale sourcing, a private-label product launch and day-to-day management across Amazon, eBay and a website I built.

  • I managed a private-label launch from start to finish, negotiating price, minimum order quantity and specification directly with manufacturers, then checking supplier quality before committing to a bulk order.
  • I designed private-label packaging and compliance materials: custom tamper-seal branding, Amazon FBA barcode labelling and an in-pack QR code prompting reviews.
  • I led the launch and produced all creative in Blender, including a CGI spot used for a paid TikTok ad.
  • I created JollySip and JollySwipe’s names, Amazon listing copy and complete product image sets. I spent one to two weeks on each listing’s visuals, using Blender for modelling and rendering, then Canva for typography and layout.
  • I ran Amazon advertising and identified the launch’s main loss drivers: ad spend outpacing margin, competitive underpricing and a supplier defect rate.
  • I handled bookkeeping and accountant liaison, preparing financial records for statutory filings. I redesigned the reporting format in 2026, and the accountant adopted it as the standard going forward.
  • I built the company’s original website manually in Brizy.

Aug 2023 – Aug 2026

From product to presentation.

JollySip flask, modelled and rendered by me in Blender
JollySip £12.99
JollySwipe lint roller product composition, created by me
JollySwipe £8.99

2023 – 2024 · product / operations / creative

Jollymart product launch

I took two private-label products from supplier selection to complete Amazon listings.

I combined supplier negotiation, product specification, packaging and FBA compliance with naming, listing production, advertising and margin analysis.

Supplier negotiationProduct launchPackaging & FBAAmazon advertisingUnit economics
Open product listings

Contact

Get in
touch.

Contact me about projects, collaborations and opportunities.

[email protected]
LinkedIn ↗