Sveinn Kristjánsson
Technical Co-Founder at Outcome
Stockholm, Sweden
Summary
👤
Senior🎓
Top SchoolSveinn Kristjánsson is a Technical Co-Founder and engineering leader with 13 years of experience building large-scale distributed systems, data architectures, ML infrastructure and platform products from Stockholm. He led engineering teams at Spotify and now co-founded Outcome to build TeamOS, an AI-driven collaboration platform that synthesizes cross-tool signals into a knowledge graph to surface team bottlenecks and drive continuous improvement. Equally comfortable in leadership and hands-on engineering, he has deep expertise in API design, search/recommendation systems, and mobile/web development, and has contributed core PostgreSQL JSON support to the popular Sequelize ORM. His background in decentralized wireless research and early iOS game startups gives him a rare blend of systems-level thinking and product-focused hustle. Forever curious about complex systems of technology and people, he combines architecture, strategy and empathy to solve high-impact problems with teams he trusts.
13 years of coding experience
13 years of employment as a software developer
Bachelor of Science (BSc) Computer Science, Bachelor of Science (BSc) Computer Science at Sogang UniversityBachelor of Science (BSc) Computer Science, Bachelor of Science (BSc) Computer Science at Reykjavik UniversityInformation Technology, Information Technology at Technical College Reykjavík
Swedish, English, Icelandic
Github Skills (11)
json10
javascript10
nodejs10
postgresql10
database9
testing9
databases9
sql8
typescript-types7
typescript7
typescripts7
Programming languages (10)
Github contributions (5)
sequelize/sequelize
Sep 2014 - Sep 2014
Feature-rich ORM for modern Node.js and TypeScript, it supports PostgreSQL (with JSON and JSONB support), MySQL, MariaDB, SQLite, MS SQL Server, Snowflake, Oracle DB (v6), DB2 and DB2 for IBM i.
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:14 commits in 4 days
Contributions summary:Sveinn primarily contributed to the implementation of PostgreSQL JSON data type support within the Sequelize ORM. This involved adding the JSON data type to the core library, providing stringification for JSON objects, and avoiding quoting for JSON operators. The user also wrote comprehensive tests for the new functionality, demonstrating expertise in database interactions. Further, they provided examples of how to use the implemented features.
feature-richormsql-servermicrosoft-sql-serversequelize
sveinnfannar/express-sequelize-restbuddy
Sep 2014 - Jun 2015
Contributions:44 commits, 1 PR, 4 pushes in 8 months
apirestsimplifyrest-apirest-apis
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