About us
DotNetSheff is a friendly Sheffield tech meetup for anyone interested in software development, .NET, AI, web, cloud, games, architecture and modern engineering.
We run monthly in-person events with expert speakers, free pizza, drinks, and relaxed socialising before and after talks.
Whether you’re a student, junior developer, experienced engineer or just curious about tech — you’re welcome.
Please get in touch via Twitter (@dotnetsheff) or email (organisers at dotnetsheff.co.uk) if you or someone you know may be interested in speaking.
http://dotnetsheff.co.uk
Upcoming events
3
![[🏫 In-Person] EF Core LINQ Provider for MongoDB with AI with Arthur Vickers](https://secure.meetupstatic.com/photos/event/5/e/c/4/highres_483804260.jpeg)
[🏫 In-Person] EF Core LINQ Provider for MongoDB with AI with Arthur Vickers
Sheffield Technology Parks, Arundel Street, Sheffield, GB🎉 Join us for an evening of .NET, MongoDB, AI and good company!
This event will be a single talk on Building an EF Core LINQ Provider for MongoDB with Claude Code with Arthur Vickers. 🧑💻🤖🍃⚠️ This will be an in-person event, the venue is Sheffield Tech Parks. 🏢📍
🙌 Everyone is welcome! You don't need to be a .NET developer or even work with .NET to attend. Whether you're interested in MongoDB 🍃, EF Core, LINQ, AI-assisted development 🤖, Claude Code, or just want to meet and chat with other developers 🗣️🍻, we'd love to see you there!
📍 Google Maps: https://maps.app.goo.gl/xm9z5Wr97QbefVCP7
🚗 Parking: Sheffield Tech Parks have limited parking, however provide free parking to our guests! 🎉 Once at the barriers phone 0114 221 1800 and they'll let you in.📅 Agenda:
🍕🥤 Pizza/Drinks (18:15 - 18:30)
👋🗣️ Introduction (18:30)
🧑🏫🤖 Building an EF Core LINQ Provider for MongoDB with Claude Code
🍻 Social @ Pub (after the talks) 🎉***
👉 Building an EF Core LINQ Provider for MongoDB with Claude Code
LINQ allows C# developers to write queries in a natural, database-agnostic way, while retaining performant execution. However, building a fully-featured LINQ provider for EF Core is a daunting job, typically requiring person-years of skilled development. To avoid this, the MongoDB EF Core provider wraps the existing LINQ provider from the driver. This is a slow, memory-intensive mechanism, and requires that the driver understand EF Core semantics. Therefore, I used Claude Code to build a first-class EF Core LINQ provider for MongoDB. This is the story of that effort: what worked, what didn't, and what building complex software with an AI agent is really like.***
🎟️ Come along, learn something new, meet some great people, and enjoy some free pizza and drinks! 🍕🥤
🤝 You don't have to be a .NET developer to join us — everyone is welcome! ❤️
15 attendees[🏫 In-Person] Lightning Talks
Sheffield Technology Parks, Arundel Street, Sheffield, GBThis event will be a special Lightning Talks Night, featuring 5–6 short talks from members of the local developer community sharing tools, ideas, projects, lessons learned, and technologies they’ve been exploring.
⚠️ This will be an in-person event, the venue is Sheffield Tech Parks.
- Google Maps: https://maps.app.goo.gl/xm9z5Wr97QbefVCP7
- Parking: Sheffield Tech Parks have limited parking, however provide free parking to our guests! Once at the barriers phone 0114 221 1800 and they'll let you in.
Agenda:
- 🍕 Pizza/Drinks (18:15 - 18:30)
- 🗣 Introduction (18:30)
- ⚡ Lightning Talk #1 - TBA
- ⚡ Lightning Talk #2 - TBA
- ⚡ Lightning Talk #3 - TBA
- ⚡ Lightning Talk #4 - TBA
- ⚡ Lightning Talk #5 - TBA
- 🍻 Social @ Pub (after the talks)
👉 What are Lightning Talks?
Lightning talks are short, fast-paced presentations lasting around 10–15 minutes each. They're designed to share an idea, demo, project, lesson learned, or technology in a concise and engaging way.Instead of one long session, you'll hear five diverse talks covering a range of topics—from AI and databases to developer tooling, business insights, and Microsoft 365. It's a great opportunity to discover something new, pick up practical tips, and hear from members of the local developer community.
Whether you're looking for inspiration, want to learn about new technologies, or simply enjoy chatting with fellow developers afterwards, Lightning Talks Night is always a fun, varied, and relaxed evening.
4 attendees
Past events
170
