Daniel Gustafsson
Postgres Hacker at The cURL project
Stockholm, Stockholm County, Sweden
Summary
🤩
Rockstar🎓
Top SchoolDaniel Gustafsson is a seasoned Postgres hacker and backend engineer with 20 years of experience, now working on PostgreSQL at Microsoft and contributing to cornerstone open-source projects like postgres and curl. He blends deep core-database expertise—having been a PostgreSQL committer since 2021 and a core contributor since 2014—with practical operational experience from Greenplum, Pivotal/VMware, and large-scale web platforms. Daniel’s contributions range from implementing core features and hardening memory handling to polishing docs and improving certificate handling in libcurl, reflecting a focus on robustness and clarity. An organizer and long-time community builder (Nordic PGDay, PostgreSQL Conference Europe, Stockholm PG User Group), he pairs technical craft with open-source stewardship. Based in Stockholm, he also brings uncommon cross-discipline experience in finance and governance as a long-serving board treasurer. He’s known for meticulous, low-level fixes and a curiosity that the GitHub bio captures as “☕ drinker and rabbit-hole explorer.”
20 years of coding experience
20 years of employment as a software developer
B.Sc, Software Engineering, B.Sc, Software Engineering at Malmö UniversityComputer Science, Philosophy, Computer Science, Philosophy at Lund UniversityM.Sc, Computer Science, M.Sc, Computer Science at La Trobe University
English, Swedish
Stackoverflow
159reputation
50kreached
7answers
0questions
Github Skills (23)
ssl10
tls1210
postgresql10
databases10
c1110
tls1310
security10
c1710
mtls10
openssl10
libtls10
relational-databases10
sql-database10
documentation10
database10
Programming languages (10)
Github contributions (5)
hapostgres/pg_auto_failover
Jun 2020 - Oct 2022
Postgres extension and service for automated failover and high-availability
Role in this project:
Backend Developer
Backend DeveloperContributions:16 commits, 16 PRs, 6 comments in 2 years 4 months
Contributions summary:Daniel primarily focused on improving the documentation and fixing minor issues within the pg_auto_failover project. Their contributions include correcting spelling and formatting errors in the documentation files, ensuring clarity and consistency. Additionally, they made code adjustments such as adding guards to memory allocation, fixing configuration file references, and removing dead code, demonstrating a focus on code quality and robustness.
failoverhigh-availabilitypostgresql-extensionpostgresqlpostgres
curl/curl
Sep 2016 - Jan 2023
A command line tool and library for transferring data with URL syntax, supporting DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, MQTT, MQTTS, POP3, POP3S, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS and WSS. libcurl offers a myriad of powerful features
Role in this project:Back-end Developer
Back-end DeveloperContributions:229 reviews, 203 commits, 350 PRs in 6 years 5 months
Contributions summary:Daniel primarily contributes to the development and maintenance of the cURL library, focusing on improving security and functionality. The contributions include fixing typos in the code and comments to enhance readability. The user made several changes to the DarwinSSL module, addressing issues related to PKCS12 import and certificate handling. Additionally, the user refactored the code to use calloc() in place of malloc() + memset() for memory allocation, improving the codebase's consistency.
command-line-toolftpftpsimapldap
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