Valentin Agachi
Staff Back-End Engineer at VisWiz.io
Gothenburg, Sweden
Summary
🤩
RockstarValentin Agachi is a web-focused software engineer and founder with 15 years of experience building and shipping full-stack web applications, currently based in Gothenburg. He has progressed from front-end roles at startups and Facebook to staff back-end engineering at Plex, blending UI sensibility with server-side and database expertise. As founder of VisWiz.io and CodingHeads he pairs hands-on development with product thinking, and he actively contributes to prominent open-source projects like TechEmpower/FrameworkBenchmarks and DefinitelyTyped—improving backend tests and Mongoose TypeScript definitions. Known for smoothing the edges between front-end expectations and robust backend implementations, he brings pragmatic leadership to engineering teams and a continual appetite for learning new technologies.
15 years of coding experience
19 years of employment as a software developer
Stackoverflow
368reputation
28kreached
1answer
1question
Github Skills (27)
mongoose10
javascript10
performance-monitor10
benchmark10
typesc10
expressjs10
app-framework10
hapi10
typescript10
benchmarking10
type-definition10
mongodb-database10
type-system10
performance-analysis10
typescript-types10
Programming languages (12)
Github contributions (5)
TechEmpower/FrameworkBenchmarks
May 2013 - Jan 2014
Source for the TechEmpower Framework Benchmarks project
Role in this project:
Backend Developer
Backend DeveloperContributions:12 commits in 8 months
Contributions summary:Valentin primarily contributed to the backend development of the TechEmpower Framework Benchmarks project, focusing on implementing and updating tests for the Hapi and Express frameworks. Their work included adding new database interaction functionalities, such as update operations for both Mongoose and MySQL ORM within these frameworks. They also addressed validation issues and refined existing tests to align with project requirements, demonstrating a focus on server-side logic and database interaction performance.
techempowerframeworkbenchmarkperformancebenchmarks
DefinitelyTyped/DefinitelyTyped
Aug 2019 - Dec 2020
The repository for high quality TypeScript type definitions.
Role in this project:Back-end Developer
Back-end DeveloperContributions:12 commits, 15 PRs, 37 comments in 1 year 4 months
Contributions summary:Valentin primarily contributes to the type definitions for the mongoose library, focusing on enhancing and correcting types to ensure accurate usage within TypeScript projects. The contributions involve refining type definitions for core functionalities, such as the `lean()` method, fixing the `_id` type for lean results, and integrating updated types to ensure compatibility. Furthermore, the user's work demonstrates a clear understanding of how the Mongoose library functions, updating type signatures for find, update, and bulkWrite operations.
typescript-definitionstype-definitionshigh-qualitydtsdefinitions
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