J

Julian Tibble

Product Manager

Oxford, United Kingdom17 yrs 4 mos experience
Highly Stable

Key Highlights

  • Expert in software engineering and optimization.
  • Led development of security analysis tools.
  • Significant contributions to GitHub Copilot.
Stackforce AI infers this person is a SaaS expert with a focus on software engineering and optimization.

Contact

LinkedIn

Skills

Core Skills

Software EngineeringOptimization

Other Skills

Go (Programming Language)JavaC#Large Language Models (LLM)KubernetesComputer ScienceAlgorithmsSoftware DevelopmentPython

Experience

17 yrs 4 mos
Total Experience
8 yrs 7 mos
Average Tenure
2 mos
Current Experience

Nscale

Principal Product Software Engineer

Apr 2026 – Present · 2 mos · Greater Oxford Area · Remote

Github

2 roles

Principal Software Engineer

Promoted

May 2020 – Dec 2025 · 5 yrs 7 mos

  • From 2021, I worked on the Copilot team. I wrote the "origin tracker" that powers the GitHub Copilot setting "Block suggestions matching public code".
  • I also worked on GitHub Code Scanning, CodeQL, and the internal transitions system (which involved co-writing a custom Kubernetes operator).
OptimizationGo (Programming Language)Software Engineering

Senior Engineering Manager

Dec 2019 – May 2020 · 5 mos

Semmle

2 roles

VP of LGTM Engineering

Promoted

Aug 2014 – Dec 2019 · 5 yrs 4 mos · Oxford, United Kingdom

  • I led the team that makes LGTM, a system for continuous security analysis across hundreds of thousands of repositories. It is built using Semmle's core QL technology.
OptimizationJavaSoftware Engineering

Software Developer

Oct 2008 – Aug 2014 · 5 yrs 10 mos · Oxford, United Kingdom

  • I have worked on compiler frontends, high-speed relational algebra evaluators, program analysis, and more.
C#OptimizationSoftware Engineering

Education

University of Oxford

Doctor of Philosophy (D.Phil.) — Computer Science

Jan 2005 – Jan 2010

University of Oxford

Bachelor of Arts (BA) — Computer Science

Jan 2002 – Jan 2005

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