CAIS

London
341 Total Employees
Year Founded: 2009
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Margo Steines Margo Steines
Published on September 23, 2025

10 Top Trading Firms in London

These firms employ financial analysts, mathematicians and engineers to drive trading innovation in the U.K. and beyond.

Margo Steines Margo Steines
Updated on May 07, 2026

30 SaaS Companies in London to Know

Software-as-a-Service products provide digital assets with maximum flexibility, and business is booming in London.

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Abel Rodriguez Abel Rodriguez
Updated on July 17, 2026

34 US Companies With Offices in London

Some of the most well-known companies in the United States have offices in this bustling capital city — and lots of them are hiring.

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Abel Rodriguez Abel Rodriguez
Updated on October 31, 2025

18 Finance Companies in London to Know

More than 1,600 companies in the U.K.’s fintech industry create a wide range financial products for consumers and businesses. These are the ones to watch.

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Margo Steines Margo Steines
Updated on June 23, 2026

28 Fintech Companies in London to Know

London’s fintech companies serve consumers and businesses in Europe and beyond. These are the ones we think you should know.

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Margo Steines Margo Steines
Updated on March 23, 2026

83 Top Tech Companies in London

These companies are helping London grow into one of the world’s premiere tech hubs.

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Recently posted jobs

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CAIS

Lead Application Security Engineer

9 Days AgoSaved
Hybrid
London, England, GBR
Fintech • Software • Financial Services
Lead application security for the platform by embedding automated controls into the SDLC, conducting security architecture and code reviews, driving threat modeling, triaging vulnerabilities, coordinating remediations, partnering with engineering/product teams, and scaling tooling and AI-assisted workflows to raise security across cloud-native and containerized environments.
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