Research Engineer | Software Engineer (Oxford, UK)

Do you want to make software better for its users? Are you a skilled, self-directed software engineer who would like to help us design and develop our next generation of products? Would you like to help us secure the code that runs the world?

The main thing we look for in candidates is intelligence and the ability to learn. We are interested in talking to people at any point in their career: from Interns to Seniors and above. 
For this role, you should be able to demonstrate an interest in programming languages, a passion for coding and an appreciation of code quality and security. 

  • Essential Requirements
  • Strong knowledge and experience of one or more of the following programming languages: C / C++, C#, Java, JavaScript, Python, Go, Datalog  (this can be commercial, academic or personal experience)
  • A rigorous foundation in Computer Science (BSc, MSc, PhD or equivalent practical experience)

  • Desirable skills (of interest but by no means essential:)
  • Open-source software development and contributions to software repositories/communities (GitHub, StackOverflow, Bitbucket)
  • Advanced OS experience: Linux / MacOS / Windows
  • An interest in interesting technology e.g. Rust, Lua, Scala, Haskell, OCaml, Lisp, Elm, Kotlin, Prolog, Datalog, Clojure
  • Git; Cloud Computing; Continuous Deployment; DevOps
  • Program analysis or Programming language design
  • Compilers; formatters; extractors; tooling

As a research engineer at Semmle, you will be given the freedom to pursue the best solutions to interesting problems. We are not looking for plug-and-play programmers to bang out glue code. You will have wide-ranging responsibilities for managing individual software projects, from design to deployment. You will closely with Semmle QL, our variant analysis engine that allows product security teams to explore code to find zero-days and all variants of vulnerabilities.  Much of your work would be out in the open, and would directly benefit tens of thousands of open-source projects via; the only variant analysis platform that combines deep semantic code search with data science insights to help developers ship secure code.

About Semmle
Semmle believes security is a shared responsibility. Our mission is to secure the code that runs the world by bringing the security and development communities together. Google, Microsoft, NASA, Uber, Palantir and many others rely on Semmle’s products to scale their security expertise and quickly explore any codebase to discover zero-days and all variants of vulnerabilities. We empower product security teams to deliver variant analysis results to development teams using LGTM to ship safe code and protect their customers. Semmle's platform enables the security community to collaborate and share their expertise in the field of variant code analysis and security research.

We offer intellectually stimulating work, competitive salaries, and a relaxed work environment in Oxford, Valencia, Copenhagen, New York, San Francisco or Seattle.

How do you apply?
Semmle aims to hire outstanding people who have a diversity of perspectives, ideas and cultures. We actively support diversity and inclusion in the workplace and are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, gender identity, age, citizenship, marital status or disability status.

Please complete the following form to apply or feel free to get in touch with Zac Wallis at for more information.

We encourage applicants to let us know of any accessibility requirements, so that we may provide the best possible support during the application process and your time at Semmle.

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