Our Approach
What is Human Layer Security?
The Ultimate Guide to Human Layer Security.
Human layer security platform
Hear what they have to say
Building a human layer security culture at ARM
Focusing on Security Basics with Game Changing Technology
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Securing the Future of Hybrid Working Report
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Why We Click:
The Psychology Behind Phishing Scams and How to Avoid Being Hacked
Securing the human layer
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Tessian is growing. Come join us.

We're on a mission to empower people to do their best work, without security getting in their way.

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Make An Impact.
Fundamentally, people do their best work when they can see its impact. We don't like hiding in the shadows; we want to do highly impactful, meaningful work for a company that is solving some of the world's biggest problems.
Learn Faster.
We’re addressing issues no one has before - that means we have to learn quickly and iterate readily. We support you with tailored development plans to help you thrive in your role and keep growing.
Go Further.
We believe working for Tessian is a rare career opportunity, which we want to be experienced by a diverse team. The contributions you make here will accelerate your career at an unusually fast pace.

Our Values.

Securing businesses, people and their data is critical work. We make sure that everyone that joins our team not only shares our mission for securing the human layer, but also our values, which define the way we work.

  • Human first.

    We approach everything with empathy and we look out for each other alongside our own wellbeing. Respect, kindness and inclusion are at the core of our company because our people are what make us Tessian.

  • Customer centricity.

    We fixate on our customers’ success. They’re the lifeblood of our business and guide our daily decision-making. Whether we’re launching a feature, or pursuing a partnership, we always ask “How does this help our customers?”

  • Positive mindset. Solution oriented.

    We lead with a curious, positive mindset, and go above and beyond to find solutions when problems arise. When our solutions fail, they fail fast — we embrace the failure and keep learning, iterating, and improving.

  • Grit and perseverance.

    We have sustained passion for achieving long-term goals. We see setbacks as opportunities to adapt and grow. We’re committed to building the resilience and motivation to tackle big challenges that others might give up on.

  • We do the right thing.

    We’re always honest and guided by integrity in every decision we make, with one another, with our customers, with everyone. We do what we believe is right, even when it means making difficult decisions.

  • Craft at speed.

    We work with great care and skill, sometimes at an uncomfortably fast pace. Rather than aim for perfection in one at the expense of the other, we balance attention to detail with speed of delivery.

Human first.

We approach everything with empathy and we look out for each other alongside our own wellbeing. Respect, kindness and inclusion are at the core of our company because our people are what make us Tessian.

Customer centricity.

We fixate on our customers’ success. They’re the lifeblood of our business and guide our daily decision-making. Whether we’re launching a feature, or pursuing a partnership, we always ask “How does this help our customers?”

Positive mindset. Solution oriented.

We lead with a curious, positive mindset, and go above and beyond to find solutions when problems arise. When our solutions fail, they fail fast — we embrace the failure and keep learning, iterating, and improving.

Grit and perseverance.

We have sustained passion for achieving long-term goals. We see setbacks as opportunities to adapt and grow. We’re committed to building the resilience and motivation to tackle big challenges that others might give up on.

We do the right thing.

We’re always honest and guided by integrity in every decision we make, with one another, with our customers, with everyone. We do what we believe is right, even when it means making difficult decisions.

Craft at speed.

We work with great care and skill, sometimes at an uncomfortably fast pace. Rather than aim for perfection in one at the expense of the other, we balance attention to detail with speed of delivery.

You’ll love it here.
We care deeply about the people that make up Tessian.
Here are just some of the ways we’ll look after you:
  • Every Friday we provide lunch and eat together as a team in the office.
    Company Lunches
  • We hold bi-annual performance and development reviews, dedicated career development meetings and team specific training to help support our employees.
    Learning and development
  • We offer pension plan contributions for both our US and UK employees.
    Retirement Plans
  • We believe in the positive impact dogs have on our culture and well being at Tessian and we’re delighted to welcome new furry friends to our team.
    Dog-Friendly Office
  • We’re happy to accommodate flexible working hours and working from home where needed.
    Flexible Working
  • We want to support our employees to live their healthiest lifestyles so we’ve partnered with Classpass to give access to a wide range of classes, wellness options and gym time!
    Classpass Discount
  • We’re proud of how much people love working here, and we’re continually working to make Tessian an even better place to be.
    4.8 glassdoor rating
Here's how it works.
We try to keep the interview process simple. It's about getting to know one another, and seeing if your skills and experience and our mission and culture are a mutual fit.
Ready to apply? See open roles
Submit Application
Complete an online application and our Talent team will review your experience and suitability for the role.
Phone Interview
If we think there could be a fit, someone from our team will set up a call to explore your motivations for Tessian and why you think you'd be a great fit for the role.
Technical Challenge
Technical ability is really important, so if successful at a phone interview, you'll be invited to complete a role-specific challenge to demonstrate this.
On-Site Interview
If that goes well, you'll be invited to come to our offices to meet more members of the team. We’ll have a deeper conversation about the role and answer any final questions you have.
Your Offer!
All of your interviewers will then meet to reach a final decision - if you're successful, we'll give you a call and invite you to join the team.
Our Offices.
  • Mission St, San Francisco

    Tessian’s San Francisco office is based in the Mission district, within a beautifully decorated WeWork building. The team here is growing rapidly as we build out our commercial presence in the US.

    Join us in San Francisco
  • Liverpool St, London

    Tessian’s London office is based in the bustling financial and tech district. The office fills 11,00 square feet and is located in the Broadgate complex, a pedestrian area filled with restaurants, cafes, cinemas and gyms.

    Join us in London
Ready to take on your
next big adventure? Join our teams on a global mission.
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Company registered number 08358482.