Scalendar November 2025

Event-driven Newsletter

November’s Scalendar is here!
From Scala meetups in London, Oslo, and Dallas to cross-stack events on APIs, React, DevOps, and architecture at scale, this month’s lineup has something for everyone.
Whether you’re building agent workflows with LLM4S, debating JavaScript demons in Warsaw, or mapping out your next platform strategy in San Francisco, you’ll find an event that speaks your language.

Hands-on workshops or hallway chats – November is packed with sharp insights and real-world inspiration.

Scala conferences in November 2025

LLM4S Dev Hour 

• Every Sunday, starting November 02, 2025
• Online
• https://luma.com/61maexly

Welcome back to the LLM4S Dev Hour – a weekly global virtual session dedicated to the LLM4S toolkit, a Scala-first AI solution for building intelligent agents and LLM-powered applications.
Each session features a live walkthrough of agent workflows, RAG systems, and multimodal apps – alongside deep dives into tracing, logging, tool integration, and a starter template complete with CI and best practices.
Whether you’re new to Scala or already working on AI apps, you’ll walk away with practical tools and the chance to connect with a worldwide developer community. Hosted by Kannupriya Kalra and Rory Graves.

ScalaBridge In-Person at Depop! 

• November 05, 2025
• London, UK / online
• https://www.meetup.com/scalabridge-london/events

Hands-on Scala evening hosted by Depop in London, designed for learners and open-source contributors alike. Whether you’re following the Foundations curriculum or hacking on your own project, ScalaBridge provides a welcoming space with peer support and community guidance – both in-person and via Discord.

Scala-Pils | scalabin

• November 05, 2025
• Oslo, Norway
• https://www.meetup.com/scalabin/events

Casual Scala meetup in Oslo – no agenda, just code, conversation, and craft beer. Held monthly at Nedre Foss Gård, this is a space to share ideas, float questions, or just connect with fellow devs. Next round is Wednesday, Nov 5 at 18:00.

Scala Talks: Write a book about Scala during Covid & AI tooling for developers | London Scala User Group 

• November 12, 2025
• London, UK
• https://www.meetup.com/london-scala

Head over to this in‑person gathering of Scala developers in London, where you’ll connect with peers working across Scala, functional programming and related frameworks. Expect a mix of lightning talks, community discussion and social time to share your experiences and ask questions. Great for anyone looking to deepen their Scala craft in a friendly local setting.

Effect-TS: ZIO through the lens of Typescript | Dallas Scala Enthusiasts

• November 14, 2025
• Online
• https://www.meetup.com/dallas-scala-enthusiasts/events

Join this monthly online meet‑up where Scala developers around Dallas gather to discuss ideas, bring questions, or present mini‑talks (all experience levels welcome). Great for peer learning, sharing small projects or just getting back to functional programming with Scala.

Since the event is virtual, connect from wherever you are – and come ready for spontaneous discussion rather than a formal agenda.

ScalaBridge Online | ScalaBridge London

• November 20, 2025
• Online
• https://www.meetup.com/scalabridge-london

Join the virtual session from the ScalaBridge London community on Thursday, Nov 20. Choose between two streams: “Foundations” (for developers newer to programming) or “Projects” (for more experienced coders working on practical applications). The event runs on Discord, so be sure to join the community beforehand.

Software Architecture

Øredev 2025 – Developers Conference 

• November 05-07, 2025
• Malmo, Sweden
• https://dev.events/conferences/oredev-2025-u3sdygiz
  

From AI workflows to DevOps pipelines and event-driven systems, Øredev is where serious devs converge to sharpen their edge. Set in Malmö, Sweden (Nov 5-7), this three‑day conference blends deep‑dive tech talks with real‑world architecture lessons, hands-on sessions, and a broad mix of engineering topics,  from data mesh to software security. Expect an international crowd, sharp speakers, and plenty of hallway conversations that go way beyond the slides.

APIdays Amsterdam

• November 06, 2025
• Amsterdam, Netherlands 
• https://dev.events/conferences/ap-idays-amsterdam-qfmen7md

This one‑day conference focuses on how APIs are powering automation, AI‑driven services, monetisation strategies, security and emerging architecture. With 20+ expert speakers ready to share practical insights and real‑world case studies, it’s an ideal dive for API‑builders, architects and platform thinkers.

Whether you’re focused on API governance, platform design, or API‑first business models,  you’ll find actionable takeaways and fresh perspectives.

QCon San Francisco 2025

• November 17-21, 2025
• San Francisco, CA, US
• https://qconsf.com/?utm_source=media&utm_medium=listing

Gear up for five days of concentrated developer‑craft at QCon San Francisco (November 17‑21, 2025): three days of packed sessions followed by two days of focused training. You’ll dive into GenAI in production, resilient & distributed architectures, Rust in the wild, staff+ engineering challenges, cloud‑native operations and next‑gen frontend paradigms. Sessions are led by senior engineers and architects – real problems, real solutions, zero fluff. 

Plus: a consciously inclusive setup (quiet zones, lactation rooms, accessibility features), rich peer‑sharing events, and a venue built for networking, collaborating, challenging your assumptions and leaving with fresh perspectives and connections.

Software Architecture Gathering 2025

• November 24-27, 2025
• Berlin, Germany 
• https://dev.events/conferences/software-architecture-gathering-2025-1g8gul8w

Dive into advanced software‑architecture thinking at this flagship conference organised by the International Software Architecture Qualification Board. With multiple tracks that span from shaping large‑scale system designs to AI‑driven architecture and business/management concerns, this event is built for practising architects, lead engineers, and anyone shaping system structure in code‑centric teams.
Expect a packed agenda of keynotes, workshops, and lightning sessions, all focused on professional insight rather than buzzword hype.

Frontend

DevOpsDays Warsaw 2025

• November 04-05, 2025
• Warsaw, Poland
• https://crossweb.pl/en/events/devopsdays-warsaw-2025/
  

Taking place 4-5 November 2025 at the Sound Garden Hotel in Warsaw, this conference brings together DevOps practitioners, developers, SREs, managers and tech leaders for deep sessions, open-space discussions and lightning talks on topics like cloud infrastructure, automation, CI/CD, Kubernetes and culture. Sponsored by the global DevOpsDays network, the edition is bilingual (English & Polish) and designed for both hands‑on engineers and cross‑functional teams.

JoyConf LA 2025

• November 06, 2025
• Los Angeles, CA, US
• https://dev.events/conferences/joy-conf-la-2025-93×29279
  

Taking place on November 6, 2025 at The Hudson Loft in Los Angeles, this one‑day conference by Storyblok is aimed at developers, marketers and digital innovators. The agenda blends tech‑centric sessions (e.g., building plugins, open‑source integrations) with content- and marketing‑led talks (e.g., AI‑search for SEO, content productivity). 

If you’re working at the intersection of content systems and engineering, this is a strong chance to plug into emerging workflows, see how content platforms scale, and network with folks shaping the stack.

WarsawJS Meetup #132 – onsite

• November 12, 2025
• Warsaw, Poland
• https://crossweb.pl/en/events/warsawjs-meetup-132-onsite/
  

This in‑person gathering at 42 Warsaw brings together JavaScript developers to dive into three talks: one exploring the journey with Lynx.js, another dissecting “JavaScript demons” and how to detect them, and a third on using Temporal for reliable workflows. Led by experienced practitioners Łukasz Chludziński, Maciej Papiewski, and Tomasz Nurkiewicz, this event is designed for anyone working with JS who is looking for deeper insights and live community interaction.

React Summit US 

• November 18-21, 2025
• New York, NY, US / online
• https://reactsummit.us/

Two days of deep‑dive React ecosystem insights (in person + online) scheduled for 18 -21 November 2025 at the Liberty Science Centre. The event features over 50 speakers across two tracks (Base Camp & Summit) and expects thousands of front‑end and full‑stack engineers. Topics include cutting‑edge work with React, server‑rendering, AI in UI, architecture at scale, and hybrid workshop streams. 

Whether you’re building large‑scale React apps, exploring AI‑powered UI, or just keeping up with the ecosystem, this event offers strong networking, practical sessions, and a chance to catch up with the community.

meet.js #Poznań 

• November 27, 2025
• Poznan, Poland
• https://crossweb.pl/en/events/meet-js-poznan-11-2025-62/

This edition of the local JavaScript community meetup focuses on real-world collaboration between devs and PMs: “PM in practice - help or hindrance?” Expect a relaxed, experience‑sharing format where attendees bring their own stories, successes and failures. 

If you’re working in JS/Frontend and want to hear from peers about team dynamics, this is a good one to include.

React Advanced London 2025

• November 28, 2025
• London, UK / online
• https://reactadvanced.com/

Dive into the cutting edge of the React ecosystem at React Advanced London (both in‑person and online). This conference focuses on deep technical topics, from architecture and performance to new React core features and real‑world scalability challenges. Expect hands‑on workshops, expert‑level talks and plenty of peer networking for engineers looking to level up.

Conclusion 

From open‑source sprints to full‑stack deep dives, this month’s lineup proves that learning doesn’t just happen alone in front of a screen. It’s in the questions asked after talks, the API debates over coffee, and the chance to hear how others are solving the same challenging problems.

Stay sharp, stay curious, and we’ll catch you in December – with plenty more architecture, Scala, and frontend in store.

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Previous Scalendar Editions

• Scalendar July 2025
• Scalendar August 2025
• Scalendar September 2025
• Scalendar October 2025