Sean Oldfield
Senior Frontend Engineer at Xelix
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolSean Oldfield is a Senior Frontend Engineer based in London with ~8–9 years delivering user-focused SaaS products and leading frontend teams through large migrations. He has hands-on expertise modernising legacy AngularJS stacks to TypeScript/React ecosystems, and has owned architecture, mentoring, and delivery across web and mobile projects. Sean has led teams of 10+ direct reports, driven productivity tooling, and steered compliance efforts including SOC2, GDPR and ISO27001—bridging product, design and DevOps. His background includes full-stack work for financial and H&S platforms and early research applying NLP to developer comments, revealing an analytical bent for improving developer experience. Colleagues rely on him for pragmatic technical direction and hiring decisions as well as for turning migration proof-of-concepts into scalable production systems.
8 years of coding experience
14 years of employment as a software developer
Bachelor of Engineering - BE (Hons), Computer Software Engineering, First Class Honours, Bachelor of Engineering - BE (Hons), Computer Software Engineering, First Class Honours at University of Auckland
English
Github Skills (7)
dedicated-server7
dotnet6
yaml1
json1
to-yaml1
webpack1
loader1
Programming languages (3)
Github contributions (5)
winstonzhao/SOFTENG-306-Project-2
Sep 2018 - Oct 2018
Contributions:31 commits in 20 days
SheepySean/gitlab-activity-importer
Feb 2025 - Feb 2025
Automatically recreate your GitLab activity chart in Github without moving entire codebase.
Contributions:2 pushes in 1 day
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