Sampo Lahtinen
Software Engineer at Sampo Lahtinen
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolSampo Lahtinen is a Berlin-based software engineer with a decade of experience building user-focused web applications, currently working on backend features for the widely used Prisma CLI while also freelancing as a full-stack developer. He specializes in React and Next.js front-ends with GraphQL/Apollo integrations and has a strong track record of improving developer workflows—introducing TypeScript into legacy codebases and creating a shared React component library at scale. A visually oriented developer with roots in materials science, he uniquely blends UX-driven design sensibilities and data analysis skills to bridge users, designers, and engineers. His background spans building D3 dashboards for anomaly detection, Power BI data models for R&D, and hands-on contributions to open-source tooling, reflecting a pragmatic, interdisciplinary approach to product development.
10 years of coding experience
6 years of employment as a software developer
Bachelor of Science (BSc), Materials Science, 5, Bachelor of Science (BSc), Materials Science, 5 at Aalto UniversityFront-End Web Developer Nanodegree, IT, Front-End Web Developer Nanodegree, IT at Udacity
Finnish, English, Spanish, Swedish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (11)
user-authentication10
typescript10
nodejs10
authentication10
typescripts10
api10
apidoc10
typescript-types10
cli10
postgresql9
database-management9
Programming languages (5)
Github contributions (5)
prisma/prisma
Nov 2023 - Mar 2025
Next-generation ORM for Node.js & TypeScript | PostgreSQL, MySQL, MariaDB, SQL Server, SQLite, MongoDB and CockroachDB
Role in this project:
Back-end Developer
Back-end DeveloperContributions:61 reviews, 17 PRs, 88 pushes in 1 year 4 months
Contributions summary:Sampo primarily contributed to the back-end functionalities of the Prisma CLI, focusing on platform authentication and project management features. Their work involved implementing new CLI commands, integrating with the Prisma Platform API for user authentication, and managing project and API key creation/deletion. They also enhanced existing CLI commands, such as login and logout, and integrated new features for Prisma Postgres database setup.
sqlserverunit-of-workormmongodbsql-server
sampolahtinen/lerna-react-playground
Jul 2021 - Feb 2023
Contributions:5 releases, 23 PRs, 35 pushes in 1 year 7 months
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