Lars-eric Jonsson
Senior Area Sales Manager at ABB Offshore Wind Connections
Gothenburg, Västra Götaland County, Sweden
Summary
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Rockstar🎓
Top School
Top expert inElixir and Erlang Web Development
Lars-eric Jonsson is a Senior Area Sales Manager based in Gothenburg with 15 years of professional experience combining technical depth and commercial leadership in the power and offshore wind sector at ABB. Trained as an electrical engineer (MSc, Chalmers), he pairs domain expertise in utility and system sales with hands-on software and infrastructure contributions in the Elixir and Erlang ecosystems. As a core Elixir contributor and creator of the Hex package manager, he has implemented critical backend features—from database drivers and protocol handling to dependency resolution and CDN-aware deployments—showing rare cross-discipline fluency. His open-source work spans high-profile projects (Elixir, Phoenix, Ecto, rebar3, OTP) and includes low-level protocol, driver, and build tooling improvements that improve reliability and deployability. Colleagues describe him as pragmatic and detail-oriented: he moves between sales strategy and gritty technical fixes, improving both product robustness and customer outcomes. He brings an unusual blend of field-facing commercial acumen and deep backend engineering experience that accelerates technical sales and solution delivery.
14 years of coding experience
Master of Science, Electrical Engineering, Master of Science, Electrical Engineering at Chalmers University of Technology
Stackoverflow
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Github Skills (93)
dependency-management10
postgresql10
package-management10
dependency-analysis10
testing10
http10
websocket10
file-operations10
vim10
proto10
http-client10
build-automation10
markdown10
session-management10
protocol-buffers10
Programming languages (20)
Github contributions (5)
elixir-mongo/mongodb
Oct 2014 - Dec 2016
MongoDB driver for Elixir
Role in this project:
Back-end Developer
Back-end DeveloperContributions:200 commits, 47 PRs, 129 pushes in 2 years 1 month
Contributions summary:Lars-eric primarily contributed to the Elixir MongoDB driver, implementing the initial BSON encoding and decoding functionality. They fixed issues with encoding arrays, moved encoding logic to a dedicated encoder module, and established the initial structure for decoding BSON data. Furthermore, they added tests for all the supported BSON types. The user was involved in developing the foundation for interacting with MongoDB using Elixir.
mongodb-driverdriverelixirmongodb
hexpm/hex
Dec 2013 - Jan 2023
Package manager for the Erlang ecosystem.
Role in this project:Back-end Developer
Back-end DeveloperContributions:71 releases, 119 reviews, 1182 commits in 9 years 2 months
Contributions summary:Lars-eric implemented a dependency resolution algorithm for the Erlang ecosystem's package manager, incorporating functions for adding, resolving, and back-tracking dependencies. They added tests to validate and refine the functionality of this resolution logic. Furthermore, they added functionality to support forked packages.
erlangelixirpackage-managererlang-vm
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