Ainsley Clark

Andrea Medda Campus

Antoine Eddi

Bill Kennedy

Bruno Scheufler

Bryan Boreham

Daniel Martí

David Vella

Daniela Petruzalek

Emily Achieng

Eleanor McHugh

Florin Patan

George Kampanos

Haseeb Majid

Jamie Tanna

Jesús Espino

John Cinnamond

Kemal Akkoyun

Kevin Holditch

Liam Hampton

Lyle Dean

Naveen Ramanathan

Roland Shoemaker

Sam Burns

Google


    loveholidays is the UK and Ireland's leading online travel agency, with a vision to become Europe's number 1 holiday provider by building the most-loved package holiday experience. loveholidays' systems currently process a trillion holiday offers daily, helping millions of customers find their perfect holiday. The website is the fastest in the industry, serving up to 8,000 requests per second, with loveholidays engineers deploying to production 1,500 times every month.
      

loveholidays


    Gno.land is set to become the leading open-source smart contract platform, using Gno, an interpreted and fully deterministic variation of the Go programming language for succinct and composable smart contracts. With transparent and timeless code, Gno.land is the next generation of smart contract platforms, serving as the “GitHub” of the Gno ecosystem, with realms (smart contracts) built using fully transparent, auditable code that anyone can inspect and reuse. Intuitive and easy to use, Gno.land lowers the barrier to Web3 and makes censorship-resistant platforms accessible to everyone. If you want to help lay the foundations of a fairer and freer world, join us today. 
      

Gno.land

Katapult is a high-performance, independent cloud platform built for developers who want speed, simplicity, and control. Powered by 100% renewable energy, Katapult delivers fast, scalable infrastructure with transparent pricing and no vendor lock-in. Everyone claims to be simple, powerful, and built for developers—we actually mean it. No complexity for the sake of it, no pricing surprises, just cloud that works. Transparent. Powerful. No nonsense.

Katapult

Atos is a global leader in digital transformation with c. 82,000 employees and annual revenue of c. € 10 billion. European number one in cybersecurity, cloud and high-performance computing, the Group provides tailored end-to-end solutions for all industries in 69 countries. A pioneer in decarbonization services and products, Atos is committed to a secure and decarbonized digital for its clients. Atos is a SE (Societas Europaea) and listed on Euronext Paris. The purpose of Atos is to help design the future of the information space. Its expertise and services support the development of knowledge, education and research in a multicultural approach and contribute to the development of scientific and technological excellence. Across the world, the Group enables its customers and employees, and members of societies at large to live, work and develop sustainably, in a safe and secure information space.

Atos

Paddle offers SaaS companies a completely different approach to their billing and subscription operations. Instead of assembling and maintaining a complex stack of payment-related apps and services, we do it for you. So you can focus on developing your product and growing your business.
 SaaS is born global. Our products are designed to simplify and automate your billing operations and propel your growth, setting you up for global expansion from day one.
 Keep a finger on the pulse of your business with accurate, accessible revenue reporting with ProfitWell Metrics.
 Automatically recover failed card payments and increase customer retention with Paddle Retain.
 Work with the world’s leading SaaS pricing experts, Price Intelligently, to solve your unique monetization problems.
 Seamlessly handle your billing and subscription management with Paddle Billing, the best-in-class comprehensive billing solution built for SaaS.
 join 4,000+ businesses already growing with Paddle. Paddle is a <a href="https://flexa.careers/companies/paddle">Flexa100 company</a> and we're hiring!

Paddle


    Algolia is a developer-first AI search and discovery API built for speed, relevance, and scalability. With multiple products like AI Search, AI Browse, AI Recommendations, and Advanced Personalization, it delivers real-time indexing, typo tolerance, and instant search out of the box. Designed for flexibility, Algolia integrates with your technology stack, giving you full control over ranking, filtering, and relevance tuning. Whether you’re building e-commerce, SaaS, or AI-driven apps, Algolia powers fast, intelligent search at scale. Get started in minutes with Algolia.
      

Algolia


    GoLand, a JetBrains IDE, is built for professional Go developers—stable, fast, and ready for large-scale projects. It comes with a full toolset to boost productivity, including powerful code completion, intuitive navigation, and built-in debugging and profiling tools. With seamless integration for Docker, databases, and popular Go frameworks, everything you need is in one place. If Go development is your focus, GoLand is designed to exceed your expectations. Find our team at the conference to learn more!
      

JetBrains


       Ardan Labs specializes in the production of High Performance Software, Consulting, Staffing and Training. Known as a thought leader in the industry, we have over 12 years of engineering experience in building production-level systems working in large scale projects that involve technologies in Go, Docker, Kubernetes, Terraform and Rust. We are process driven, transparent with our partners and foster a culture of cooperation internally and externally. Whether you are looking to produce software that is scalable, efficient, and reliable; need in-depth insights on your architecture and infrastructure; need more specialized engineering help to speed up production; or are looking to train your team to the next level, Ardan Labs can help you get there.
      

Ardan Labs

Despite its 15 year history, Go has had a rather uneventful security history. Let’s talk about why that is, some of the mistakes we did make and what they taught us, what we’re working on now, and what’s on the horizon to make Go an even better, safer language for the next 15 years. 

Roland Shoemaker, Go Security Team Lead at Google, presents the keynote at GopherCon UK 2025, held on 14–15 August.

#golang  #golanguage  #goprogramming  #cybersecurity  #securecoding  #gopherconuk #googlego  #devsecops  #programminglanguages

Go Security – Past, Present, and Future - Roland Shoemaker

A technical overview of the changes to the Go language, toolchain, and standard library coming in Go 1.25, to be released in early August.

Go has been adding new features at a rapid pace in recent years - modules, generics, PGO, iterators, FIPS - so it is crucial that Go enterprise users are kept in the loop and provide feedback to the Go team. I have been doing these 'What's coming in Go 1.X' talks since 2018 and they have been really successful at engaging Go users with the project, converting many into new contributors.

Watch Daniel Marti, Software Engineer at Cue Labs and Go contributer, talk features of Go 1.25 in his talk given at GopherCon UK 2025 held on the 14-15th August.

#gopherconuk #golang #goprogramming #golanguage  #softwaredevelopment #opensource

What's coming in Go 1.25 - Daniel Marti

This talk explores the various strategies for unit testing Go applications that interact with external services like S3.Testing against real external dependencies is considered the gold standard, but it’s often impractical due to access restrictions, cloud costs or the difficulty of reliably simulating failure scenarios such as network partitions.

We begin with the gold standard: testing directly against S3. To simulate failure paths such as network errors, we introduce Toxiproxy, a framework that enables controlled simulation of network failures during tests.

In some scenarios, testing against the external dependency is not possible due to restricted permissions or cost constraints. This is quite common in regulated fintech companies. In such cases cloud emulation services such as LocalStack can be used to test both success and failure cases.

For external dependencies without such emulation services, Go’s httptest package and third-party libraries like httpmock can be used to simulate external service behavior.

Finally, when HTTP mocking is too complex or impossible, we climb to the top of the testing pyramid and use interface based mocking. We’ll demonstrate both manual interface mocking and automated mock generation using tools like Mockery.

Naveen Ramanathan, Software Engineer at JP Morgan, gives his talk at GopherCon UK 2025 held on the 14-15th August.

#gopherconuk #golang #goprogramming #golanguage  #unittesting  #softwaretesting #softwaredevelopment

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