Meet our speakers!
Tammy Bütow
Tammy Bütow is a Principal SRE at Gremlin where she works on Chaos Engineering, the facilitation of controlled experiments to identify systemic weaknesses. Gremlin helps engineers build resilient systems using their control plane and API. Tammy previously led SRE teams at Dropbox responsible for Databases and Storage systems used by over 500 million customers. Prior to this Tammy worked at DigitalOcean and one of Australia's largest banks in Security Engineering, Product Engineering and Infrastructure Engineering.

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Kat Cosgrove
Kat Cosgrove is a chronic early-adopter of new technologies and a real-life cyborg. Her professional engineering background is in web development, IoT, and programming education, but today she's a Developer Advocate for JFrog. She loves finding creative solutions for hard problems, especially if they're a little hacky.
When she's not building demos or at a conference, she spends her time gaming, watching e-sports, and working on useless but entertaining side-projects. She also volunteers with area non-profits geared towards getting more women and other underrepresented minorities into tech.
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Agata Cieplik
Hi, I'm Agata and I work as an Infrastructure SWE at Dropbox. I studied Computer Science at the University of Warsaw (MIMUW) in Poland, and it was there I gained my first industry experience; I worked as a software engineer at a well-known online wallet brand in Poland, where my primary focus was to integrate it with third-party hubs and the Masterpass initiative. I have also helped to design and implement one of the first SEPA-compliant payment terminal applications on the European market while working as an embedded systems engineer at Novelpay.
I've been at Dropbox for 3 years: during this time I've helped scale Paper's infrastructure, enabling our product to support larger teams. Over the last year I've been working on a monitoring team, where I have been able to redefine and support the notifications and alerting engine, which processes tens of thousands of alerts every minute.
I am also funny.
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Elle O'Brien
Elle O'Brien is a data scientist at Iterative, Inc.
(the team behind DVC.org). She holds a PhD from the University of Washington and has presented about data science, AI, and statistical methods at the University College of London, Rev Data Science Summit, the American Statistical Association's Symposium on Data Science & Statistics, and more. Previously, she conducted research in computational neuroscience and speech perception, and worked as the Chief Scientist at Botnik Studios, an AI-comedy
writing collective.
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Ana Margarita Medina
Ana is a Software Engineer living in San Francisco. She is currently working as a Chaos Engineer at Gremlin, helping companies avoid outages by running proactive chaos engineering experiments. Prior to Gremlin, she has worked at various-sized companies like Google, Uber, SFEFCU and Miami-based startup. Catch her tweeting at @Ana_M_Medina mostly about traveling, diversity in tech and mental health.
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Wendy Segura
Wendy Segura is a current Security Engineer Fellow at Insight. She previously interned at Agari Data, Inc., as a Security Engineer. She is interested in DevSecOps and in her spare time enjoys writing technical articles, some of which have been published at Sweetcode.io
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Adrienne Braganza Tacke
Adrienne Braganza Tacke is a Filipina software engineer, international speaker, and published author of the book Coding for Kids: Python. She is also a LinkedIn Learning instructor who specializes in Azure and Cloud Development courses. She takes great delight in solving complex problems and building awesome things, particularly with C# and JavaScript. Most of all, she relishes the opportunity to teach anyone about code.
Adrienne recently joined MongoDB as Senior Developer Advocate.
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Anna Petrovicheva
Anna is CTO of OpenCV.AI and CEO of Xperience AI. Anna is an expert in Deep Learning for Computer Vision and a member of OpenCV Technical Committee. Previously Anna worked at Itseez (the OpenCV company) and Intel where she created open-source optimized Machine Learning libraries and Deep Learning algorithms for autonomous driving and retail.
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Sasha Rosenbaum
Sasha is a Program Manager at GitHub, focused on helping engineers be successful with using GitHub for work as well as for open source.
In her career, Sasha has been a developer, an IT administrator, a consultant and a cloud architect. Sasha is a chair of the new DeliveryConf, a co-organizer of DevOps Days Chicago, and an author of a book on Serverless Computing in Azure.
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