Jay Mcguinness
Founder at BigJump Limited
Malvern Hills, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolJay Mcguinness is a seasoned founder and full-stack developer with over 25 years of experience delivering high-performance web platforms and serverless cloud solutions for major brands. As Founder of BigJump he partners with agencies and clients to turn ambitious ideas into scalable, secure products powered by AWS/Azure and IaC, with a strong emphasis on performance and user experience. He has a long track record advising enterprise clients like Dyson, Volkswagen and Porsche through hands-on technical consultancy and delivery. Jay combines deep backend expertise—including meaningful open-source contributions to the Marten document DB around multi-tenant unique indexes—with frontend and AI integration skills. Based in the Malvern Hills, he pairs entrepreneurial leadership with practical engineering, often stepping into board-level conversations to align technology with business outcomes. His background in computer systems engineering and early career work on financial systems and Classic ASP tools gives him uncommon breadth across legacy and modern stacks.
11 years of coding experience
4 years of employment as a software developer
Computer Systems Engineering, Computer Systems Engineering at University of Warwick
German
Github Skills (11)
net10
asp-net10
postgrest10
document-database10
postgresql10
csharp10
marten10
dotnet-core10
dotnet7
dotnet-new4
event-sourcing4
Programming languages (7)
Github contributions (5)
JasperFx/marten
Mar 2019 - Mar 2019
.NET Transactional Document DB and Event Store on PostgreSQL
Role in this project:
Back-end Developer
Back-end DeveloperContributions:7 commits, 1 PR, 3 comments in 13 days
Contributions summary:Jay's contributions primarily centered on enhancing the unique index functionality within the Marten document database. They added support for multi-tenant unique indexes, including both computed and duplicated fields. The user made modifications to the `ComputedIndex` and `DocumentMapping` classes to facilitate the implementation of these features. The changes also included adding attribute support, demonstrating a focus on core database features and extending existing capabilities.
dotneteventstorepostgresqlmartenpostgres
jaymcguinness/marten
Mar 2019 - Mar 2019
Postgresql as a Document Database and Event Store for .Net Applications
Contributions:5 pushes in 12 days
sqlserversql-serversqldatabasepostgres
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