Tessian protects every business's mission by securing the human layer

We're building intelligent security that works for human beings as they are, not how security policies would like them to be. Using machine learning technology, Tessian automatically predicts & eliminates advanced threats on email caused by human error - like data exfiltration, accidental data loss, business email compromise & phishing attacks - with minimal disruption to employees' workflow. As a result, employees are empowered to do their best work, without security getting in their way. You can read more about Human Layer Security here.

Tessian has raised a $74m Series C led by renowned security investors, March Capital (Crowdstrike, Knowbe4), with follow-on from Sequoia, Accel, Balderton, Latitude, Okta, Sozo, Citi & Schroder Adveq, to further our mission to secure the human layer.

Founded in 2013, Tessian is backed by world-class venture capital investors, has hubs in London, San Francisco, Boston, & Austin, & London, & is one of the Top-3 2021 Best Places to Work for Women.

At Tessian, we're building the world's first Human Layer Security platform. We're making a difference by providing automatic, real-time protection against threats such as social engineering, human error, & data exfiltration, for people all  around the world.

We are looking for Desktop (C#/.Net) engineers to help build out our integration offerings supporting our next stage of growth, drive our ability to scale, & grow with us as a company. You'll stop criminal threats & prevent embarrassing mistakes for millions of people.

In Client-side Integrations we hope to demonstrate to our clients that enterprise software can be done differently. We aim for a minimal-disruption approach to tackling email-based threats & we need our software - & our developers working on our client-side integrations - to enable this. Most enterprise clients access their emails via Microsoft Outlook, so our Outlook add-in is a key integration, & the desktop developer in this role will be working on the product at the very heart of our company.

You'll be surrounded by incredibly smart, talented & friendly colleagues. Engineers at Tessian love to learn from each other & pull together as a team to succeed. We all have a say in what we build & how we build it & you will be empowered - & encouraged - to have an opinion.

We know that we do our best work & have the most fun as a diverse team that represents our users & the world we live in. We work hard to develop our incredible Tessians & ensure that the Engineering team is a fantastic place to work for every gender, ethnicity, age, race, sexual orientation & educational background. We also seek diversity of experience:some of our engineers have been building Windows desktop & services for years, & some have learned the ins & outs of their tech stack & language on the job.