Samuel Varallo
User Researcher at Companies House
Greater Cardiff Area United Kingdom
Summary
👤
Senior🎓
Top SchoolSamuel Varallo is a user researcher and former software developer with nine years’ experience in UK digital services, currently researching at Companies House after five years on its engineering team. He blends hands-on development skills (Java, JavaScript, SQL, automated testing with Selenium/Cucumber) with user-centred research methods, giving him a rare full-stack perspective on product decisions. His background began in a multi-rotation digital graduate scheme where he led automated testing adoption, ran scrum activities and wrote product stories—skills that inform pragmatic, delivery-focused research. Based in the Greater Cardiff Area, he draws on a Biochemistry degree to bring analytical rigour and curiosity to user insight work. Colleagues know him for translating technical constraints into clear user recommendations and for bridging developer and researcher priorities to speed iteration.
9 years of coding experience
6 years of employment as a software developer
Biochemistry, Biochemistry at Aberystwyth University4 A levels in Biology Chemistry History and the Welsh Baccalaureate , 4 A levels in Biology Chemistry History and the Welsh Baccalaureate at Ysgol Greenhill School
English, French, Welsh
Github Skills (31)
entity10
confirmation9
api8
sdk8
statement8
nodejs7
chips7
javascript6
mongodb5
oracle-database5
plsql5
retrieval4
frontend4
database4
django3
Programming languages (6)
Github contributions (5)
companieshouse/mongo-to-s3-export
Dec 2020 - Jan 2022
Lambda to export mongodb to S3.
Contributions:1 review, 3 PRs, 2 pushes in 1 year 1 month
exportserverlessaws-lambdaawsmongodb
companieshouse/promise-to-file-web
Jan 2020 - Mar 2021
Contributions:1 review, 54 PRs, 67 pushes in 1 year 2 months
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