LocalGlobe Edition Show & Tell – Complete Event Coverage

## Event: Show & Tell | LocalGlobe Edition – Thursday 22nd October 2020

### Talks by:
– Krzysztof Wroblewski & Michael Aldridge, Software Engineers at Tessian
– Mofe Salami, Developer Advocate at Yapily
– Stuart Kelly, Staff Engineer at Zego
– James Sherwood-Jones, Senior Software Engineer at Impala
– Rosie Watson, Full Stack Engineer at Lingumi

Welcome to the third event in the Show & Tell series, featuring companies from the LocalGlobe portfolio. We are proud to present five amazing growth stage companies that emphasize diversity in their teams. You will hear from individuals with different technical backgrounds, including our first female engineer presenter. Our participants come from various backgrounds, with and without kids, and from both the UK and outside of the UK. At TechTree, diversity is an important value for us.

Before we begin with the speakers, we would like to introduce our new mentoring platform. Starting in November, we will be launching a mentoring program with successful engineers from diverse backgrounds, including those from ethnic backgrounds and female engineers, who have previously worked at companies like Google, Palantir, and Skype. This platform aims to provide engineers with the mentorship they need to excel in their careers, regardless of their credentials. If you are interested in becoming a mentor or being mentored, please sign up through the link provided by my colleague Sam.

Now, let’s move on to our first presentation by Tessian. Tessian is a fast-growing company with around 60 engineers and plans to double their team size. Christoph and Michael will discuss the exciting work they’re doing at Tessian and the technical challenges they’ve overcome. Tessian’s core mission is to protect businesses against email threats, specifically those caused by human error. They use technology to assist humans and prevent mistakes that can lead to breaches in security. Tessian’s platform not only detects misaddressed emails but also safeguards against fishing and spearfishing attacks, providing administrators with better visibility of their company’s risk.

From a technical standpoint, Tessian employs an architecture that integrates with customers’ email infrastructure. They use services to classify emails and keep their models updated based on the email traffic they monitor. With their backend services written in Python and hosted on Amazon Web Services, Tessian ensures that customer data is securely stored in multiple data stores, including PostgreSQL and Amazon S3. To maintain data separation, they implement a multi-tenancy approach, allowing them to handle requests from different tenants simultaneously, ensuring data integrity and security.

Managing multi-tenancy comes with its challenges, as even the best engineers can make mistakes. However, at Tessian, we believe in a blameless culture and learn from errors, constantly improving our systems and processes.

Join us as Christoph and Michael share their insights into Tessian’s technical achievements and the future of email security.

*For more information, please check out our sources:*
– [TechTree](https://techtree.io/)
– [Tessian](https://www.tessian.com/)
– [PostgreSQL](https://www.postgresql.org/)
– [Amazon Web Services](https://aws.amazon.com/)

Event: Show & Tell | LocalGlobe Edition – Thursday 22nd October 2020

Talks by:
Krzysztof Wroblewski & Michael Aldridge, Software Engineers at Tessian
Mofe Salami, Developer Advocate at Yapily
Stuart Kelly, Staff Engineer at Zego
James Sherwood-Jones, Senior Software Engineer at Impala
Rosie Watson, Full Stack Engineer at Lingumi