Polina Bungina
Senior Software Engineer at Zalando
Berlin, Germany
Summary
🤩
Rockstar🎓
Top SchoolPolina Bungina is a Database Consultant with nine years of experience building and operating production-grade PostgreSQL platforms and cloud-native database services. Based in Berlin, she has driven PostgreSQL-as-a-Service and HA cluster tooling at Zalando and contributed to prominent open-source projects like Patroni, Postgres-Operator and Spilo, improving reliability around WAL handling, major-version upgrades, and Kubernetes deployments. Her background spans backend development, DevOps and L3 database engineering, with hands-on work on Greenplum internals, backup/restore scripts and automated installation playbooks. Polina combines strong automation skills—including CI/CD for multi-architecture container images—with a pragmatic approach to migrations and backup safety. She pairs deep operational experience with a research mindset from her work analyzing query execution for monitoring features. Colleagues rely on her for turning complex database failure modes into robust, testable processes.
9 years of coding experience
5 years of employment as a software developer
Bachelor's degree, Applied informatics, Bachelor's degree, Applied informatics at ITMO University
English, Russian, Spanish, German
Github Skills (35)
kubernetes10
docker10
postgresql10
admin10
back-end-development10
python10
scripting10
databases10
cluster-computing10
bash10
failover10
database-administration10
dockers10
cicd10
automation10
Programming languages (4)
Github contributions (5)
zalando/spilo
Jun 2022 - Jan 2023
Highly available elephant herd: HA PostgreSQL cluster using Docker
Role in this project:
DevOps Engineer & Database Engineer
DevOps Engineer & Database EngineerContributions:2 releases, 53 reviews, 42 commits in 7 months
Contributions summary:Polina contributed to the repository by modifying build scripts and deployment configurations. They updated the Ubuntu version used in the test workflow and adjusted scripts to use a more strict version of shellcheck. Furthermore, the user made several changes to PostgreSQL-related scripts, including `post_init.sh`, `wale_restore.sh` and `postgres_backup.sh`, improving their functionality and ensuring compatibility with PostgreSQL versions and settings. The user also adapted the tests to use `podman` instead of `docker`.
pythondocker-imageelephantdockerpatroni
patroni/patroni
Aug 2022 - Jan 2023
A template for PostgreSQL High Availability with Etcd, Consul, ZooKeeper, or Kubernetes
Role in this project:Back-end Developer & DevOps Engineer
Back-end Developer & DevOps EngineerContributions:10 releases, 367 reviews, 20 commits in 5 months
Contributions summary:Polina's commits primarily focused on improving the reliability and maintainability of the Patroni project. They addressed potential data loss issues during PostgreSQL rewind operations by archiving potentially missing WAL segments. The user implemented fixes to exception handling and improved the handling of Kubernetes deployments, ensuring more robust behavior. Additionally, the user bumped versions for build dependencies and enhanced the shell scripts and build processes, demonstrating a focus on continuous integration and deployment.
etcdzookeeperavailabilityhaproxykubernetes
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