Sebastiaan Mannem
Chief Technology Officer at Nibble IT
South Holland, Netherlands
Summary
🤩
Rockstar🎓
Top SchoolSebastiaan Mannem is a seasoned technology leader and CTO with 11 years of hands-on experience building and operating database-focused, cloud-native systems from the Netherlands. He combines deep Postgres expertise with practical Kubernetes/OpenShift and automation skills (Ansible, Bash, Python, Go) to deliver reliable backup, HA and disaster-recovery solutions across on‑prem and cloud environments. As an active contributor to wal-g, he has improved Postgres remote backup, WAL handling and pgx integrations—work that directly impacts large-scale database archival and restore workflows. His background spans product management and solutions architecture at EnterpriseDB through to running his own consultancy and now leading Nibble IT, giving him both customer-facing product sense and implementation rigor. Colleagues know him for translating complex data-protection requirements into pragmatic, automated platforms and for spotting edge cases in backup/restore that others miss.
11 years of coding experience
4 years of employment as a software developer
Amsterdam University of Applied SciencesOCP, OCP at Oracle
Stackoverflow
505reputation
41kreached
16answers
0questions
Github Skills (23)
postgresql10
archiving10
backup10
go10
golang10
databases9
sql-database9
database9
relational-databases9
azure8
aws8
microsoft-azure8
cloud-computing7
aws-s37
amazon-s37
Programming languages (10)
Github contributions (5)
wal-g/wal-g
Sep 2020 - Aug 2022
Archival and Restoration for databases in the Cloud
Role in this project:
Back-end Developer & Database Engineer
Back-end Developer & Database EngineerContributions:36 reviews, 17 commits, 7 PRs in 1 year 11 months
Contributions summary:Sebastiaan primarily contributed to the database archival and restoration functionalities of the `wal-g` project. Their work involved upgrading database connection libraries (pgx) and improving the Postgres remote backup capabilities. These contributions included modifying code related to backup handlers, delta backups, and file streaming. The user also addressed specific issues, such as client encoding problems and handling WAL file existence errors.
golangsqlservermysqlrestorationdatabases
pgvillage/pgvillage
Sep 2022 - Mar 2025
A supported solution blueprint for easily deploying, running and managing Postgres in your estate
Contributions:24 PRs, 34 pushes, 24 branches in 2 years 7 months
deployingblueprintsupporteddockerpostgres
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