François Martin

Senior Full Stack Software Engineer at Karakun AG

François Martin is a senior full-stack software engineer at Karakun AG in Switzerland, passionate about building high-quality applications. He co-authored the open-source JavaFX frameworks WorkbenchFX and PreferencesFX, and organizes Basel's Hackergarten to help developers get involved with open-source projects. François is an Oracle ACE Associate and co-authored the ISTQB Test Analyst v4.0 syllabus. He is also part of the content committees for the BaselOne and DevBcn conferences. François has given 85 talks, workshops, and mentoring sessions across 18 countries. He has spoken at major international conferences, including WeAreDevelopers World Congress, JavaZone, NDC Oslo, Jfokus, KCDC, Devnexus, and Devoxx Greece. He regularly shares practical insights to inspire developers and help teams build better software.

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Upcoming events(6)

KCDC 2026

Kansas City, MO, USA

TalkMy code is faster than yours... let me prove it to you!TalkFrom Bugs to Brilliance: Testing Toolbox in Action MentoringNext Steps for a Developer MentoringUsing Conferences to Reach the Next Level

BED-Con 2026

Berlin, Germany

Talk82 Bugs I Collected in a Year You Won't Believe Made It to Production

BaselOne 2026

Basel, Switzerland

Talk82 Bugs I Collected in a Year You Won't Believe Made It to Production

TestCon Europe 2026

Vilnius, Lithuania

TalkTesting on Thin Ice: Chipping Away at Test Unpredictability WorkshopFrom Zero to Maintainer: Contributing to Open Source Projects

Devoxx Morocco 2026

Casablanca, Morocco

TalkMy Fixes Became the Lesson: Teaching AI Better Coding Habits

Tokyo Test Fest 2026

Tokyo, Japan

TalkFrom Bugs to Brilliance: Testing Toolbox in Action

Publications(6)

How my coding agent pushed a commit deleting every file to main and almost broke production

Open Source Doesn't Need Another Pull Request. It Needs Triage.

ISTQB Advanced Level Test Analyst Syllabus v4.0 (PDF)

Stop Rerunning, Start Shipping: 7 Strategies to Eliminate Flaky Tests

Eliminating Flaky Tests to End World Hunger

Why Software Testing Is a Waste of Time: Unpacking the Paradox

Interviews(18)

Date	Details	Media
May 4, 2026	More Than a Blog: How Foojay Connects, Sustains, and Evolves the Java Community (#94) Interviewer: Frank Delporte Interviewee: François Martin Topics: FoojayJava CommunityOpenJDKTechnical WritingCommunity BuildingFoojay, Java Community, OpenJDK, Technical Writing, Community Building Show: Foojay, the Friends Of OpenJDK	Play video
Apr 26, 2026	Why François Martin Keeps Coming Back to JCON Interviewer: Buhake Sindi Interviewee: François Martin Topics: JCON 2026Developer CommunityJava ConferenceVolunteeringMentoringJCON 2026, Developer Community, Java Conference, Volunteering, Mentoring	Play video
Apr 22, 2026	François Martin on Mentoring and Using AI Responsibly for Open Source Contributions at JCON 2026 Interviewer: Baruch Sadogursky Interviewee: François Martin Topics: AI for OSSOpen SourceAI CodingPull RequestsMentoringAI for OSS, Open Source, AI Coding, Pull Requests, Mentoring Show: AI Native Dev	Play video
Feb 6, 2026	Interview with Heinz Kabutz: Java Concurrency Is Easier Than You Think Interviewer: François Martin Interviewee: Heinz Kabutz Topics: Java ConcurrencyThreadsPerformanceJava Concurrency, Threads, Performance	Play video
Feb 6, 2026	How Java Developers Should Start Using AI with Mary Grygleski Interviewer: François Martin Interviewee: Mary Grygleski Topics: AI for JavaDeveloper ProductivityLLMsAI for Java, Developer Productivity, LLMs	Play video
Feb 6, 2026	Interview with Arjan Tijms: The Fastest Path Into Open Source Interviewer: François Martin Interviewee: Arjan Tijms Topics: Open SourceJakarta EEDeveloper CommunityOpen Source, Jakarta EE, Developer Community	Play video
Nov 6, 2025	OpenJDK Evolutions plus Tips and Tricks (#83) Interviewer: Frank Delporte Interviewee: François Martin Topics: JMH microbenchmarksJVM/implementation performance comparisonsProfiling vs benchmarkingVirtual threadsJava 25 LTSJMH microbenchmarks, JVM/implementation performance comparisons, Profiling vs benchmarking, Virtual threads, Java 25 LTS Show: Foojay, the Friends Of OpenJDK	Play video
Oct 16, 2025	#VerboseMode at #BaselOne 2025 with François Martin on Java Streams Interviewer: Baruch Sadogursky Interviewee: François Martin Topics: Java StreamsPerformanceFunctional ProgrammingJava Streams, Performance, Functional Programming Show: VerboseMode by TuxCare	Play video
May 31, 2025	Interview with François Martin at JNation 2025 Interviewer: Andres Almiray Interviewee: François Martin Topics: JMHJava 30th AnniversaryCommunityConferenceJMH, Java 30th Anniversary, Community, Conference	Play video
May 26, 2025	Interview with François Martin, a JCON Europe 2025 speaker, about Java & JavaScript automated testing tools Interviewer: Marián Varga Interviewee: François Martin Topics: Testing ToolsAssertion LibrariesTesting CultureTesting Tools, Assertion Libraries, Testing Culture	Play video
May 25, 2025	Behind the Scenes of JNation with the Organizer and Java Champion Roberto Cortez Interviewer: François Martin Interviewee: Roberto Cortez Topics: Conference OrganizationAttendee ExperienceConference Organization, Attendee Experience	Play video
May 14, 2025	Foojay at JCON 2025 - François Martin Interviewer: Frank Delporte Interviewee: François Martin Topics: ConferenceCommunityTesting ToolsResilience TestingJava Virtual ThreadsConference, Community, Testing Tools, Resilience Testing, Java Virtual Threads Show: Foojay, the Friends Of OpenJDK	Play video
May 6, 2025	Mentoring & Behind the Scenes of JCON Europe with the Organizer and Java Champion Richard Fichtner Interviewer: François Martin Interviewee: Richard Fichtner Topics: Mentoring & TakeawaysConference OrganizationCommunityMentoring & Takeaways, Conference Organization, Community	Play video
Apr 29, 2025	FikaAI Interview with François Martin Interviewer: Ari Waller Interviewee: François Martin Topics: Developer JourneyCareerCommunityFuture of AIDeveloper Journey, Career, Community, Future of AI Show: FikaAI by Neo4j	Play video
Feb 28, 2025	Teaching Java & Contributing to Java Interviewer: Jim Grisanzio Interviewee: François Martin Topics: Developer JourneyJavaTeachingTest-Driven DevelopmentOpen SourceCommunityDeveloper Journey, Java, Teaching, Test-Driven Development, Open Source, Community Show: Duke's Corner Podcast by Oracle	Open interview
Nov 18, 2024	Design Engineering at GitHub: Interview with Head of Design Diana Mounter Interviewer: François Martin Interviewee: Diana Mounter Topics: Design EngineeringGitHubPerformanceDesign Engineering, GitHub, Performance	Play video
May 16, 2024	#BuildPropulsionLab at #JCON2024: @BrianDemers with @fmartin_ Interviewer: Brian Demers Interviewee: François Martin Topics: Flaky TestsBuildCIRemote CollaborationCommunicationFlaky Tests, Build, CI, Remote Collaboration, Communication Show: Build Propulsion Lab by Gradle	Play video
May 14, 2024	Foojay at JCON 2024 - François Martin Interviewer: Frank Delporte Interviewee: François Martin Topics: ConferenceJUGFlaky TestsTesting ToolsCIConference, JUG, Flaky Tests, Testing Tools, CI Show: Foojay, the Friends Of OpenJDK	Play video

Past events(56)

Start	End	Event	Location	Sessions
Sep 2, 2026	Sep 2, 2026	Garden State Java User Group 2026	Madison, NJ, USA	Talk From Bugs to Brilliance: Testing Toolbox in Action
Jun 18, 2026	Jun 19, 2026	Voxxed Days Luxembourg 2026	Luxembourg, Luxembourg	Talk 82 Bugs I Collected in a Year You Won't Believe Made It to Production Talk From Bugs to Brilliance: Testing Toolbox in Action
Jun 16, 2026	Jun 17, 2026	DevBcn 2026	Barcelona, Spain	Mentoring Ask Me Anything Tue, 16 Jun slot Mentoring Public Speaking Mentoring Ask Me Anything Wed, 17 Jun slot How writing just one import the wrong way slows down your website
Jun 9, 2026	Jun 9, 2026	Java User Group CH Basel 2026	Basel, Switzerland	Talk I Didn't Know You Could Do That With Java Streams!?
Jun 3, 2026	Jun 4, 2026	jPrime 2026	Sofia, Bulgaria	Talk My code is faster than yours... let me prove it to you!
May 14, 2026	May 15, 2026	GeeCON 2026	Kraków, Poland	Talk 82 Bugs I Collected in a Year You Won't Believe Made It to Production AI-Assisted Coding Beyond the Vibe: Craft, Economics, and the Human at the Controls
Apr 20, 2026	Apr 23, 2026	JCON EUROPE 2026	Cologne, Germany	Mentoring Using Conferences to Reach the Next Level Mentoring Next Steps for a Developer
Mar 10, 2026	Mar 12, 2026	JavaLand 2026	Rust, Germany	Talk 82 Bugs I Collected in a Year You Won't Believe Made It to Production
Feb 2, 2026	Feb 4, 2026	Jfokus 2026	Stockholm, Sweden	Talk I Didn't Know You Could Do That With Java Streams!? Mentoring Using Conferences to Reach the Next Level Mentoring Next Steps for a Developer
Jan 15, 2026	Jan 15, 2026	Java User Group CH St. Gallen 2026	St. Gallen, Switzerland	Talk I Didn't Know You Could Do That With Java Streams!?

François Martin

Speaking statistics

Upcoming events(6)

Publications(6)

Interviews(18)

Past events(56)