Najnowsze informacje o pracy w Webellian Sp. z o.o. na stanowisko Senior Database Administrator. If the Senior Database Administrator wolny etat w Mazowieckie odpowiada Twoim kwalifikacjom, prześlij swoje aktualne CV bezpośrednio przez portal Jobkos.
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Senior Database AdministratorMiejsce pracy: WarszawaTechnologies we useExpected
PostgreSQL
Microsoft Azure
Python
Bash
Claude Code
Operating system
Windows
About the project
As a Senior Database Administrator (DBA) with DevOps expertise within Advanced Analytics Team, you will be the primary owner of database health, reliability, and the full lifecycle of database artifacts across production AI systems. This is not a traditional DBA role — you will bring a strong DevOps mindset to database operations, treating schema migrations, stored procedures, configuration, and database infrastructure as versioned, tested, and continuously delivered artifacts.
Your responsibilities
Own the database artifact lifecycle: version-control all database objects (schemas, migrations, stored procedures, functions, views, roles) and manage their delivery through CI/CD pipelines using tools such as Flyway, Liquibase, or sqitch.
Design, implement, and maintain PostgreSQL database schemas: normalisation, indexing strategies, partitioning, constraint design, and schema evolution patterns that support zero-downtime migrations.
Build and operate database CI/CD pipelines in collaboration with DevOps: automated migration testing, schema validation, rollback strategies, and environment promotion (dev to staging to production).
Monitor and optimise database performance: query analysis with EXPLAIN/EXPLAIN ANALYZE, index tuning, vacuum and autovacuum configuration, connection pool management (PgBouncer), and long-running query governance.
Own backup, recovery, and disaster recovery procedures: point-in-time recovery (PITR), WAL archiving, replication configuration (streaming and logical), and regular recovery testing.
Manage database security and access control: RBAC, row-level security (RLS), audit logging, secrets rotation via Azure Key Vault, and compliance with data protection policies.
Operate and manage PostgreSQL on Azure: Azure Database for PostgreSQL Flexible Server configuration, high availability setup, read replicas, scaling operations, and cost governance.
Define and enforce database change management standards: peer review of migration scripts, naming conventions, anti-pattern detection, and pre-production validation gates.
Support Data Engineers and Backend Engineers with database design guidance, query optimisation advice, and hands-on troubleshooting of data access bottlenecks.
Manage database observability: dashboards and alerting for query performance, replication lag, connection saturation, bloat, and storage growth using Azure Monitor, pg_stat_* views, and Grafana.
Champion Claude Code as a daily tool for writing and reviewing migration scripts, generating documentation, automating database maintenance tasks, and accelerating troubleshooting.
Our requirements
6+ years of professional DBA experience with PostgreSQL as the primary platform, including deep operational knowledge in production environments.
Strong database DevOps mindset: experience managing database artifacts as code, with version control, automated testing, and pipeline-driven delivery.
Hands-on experience with schema migration tooling: Flyway, Liquibase, sqitch, or equivalent — including branching strategies, baseline management, and rollback patterns.
Expert-level PostgreSQL internals: MVCC, WAL, autovacuum, locking behaviour, query planner, index types (B-tree, GIN, GiST, BRIN), and connection management.
Experience with PostgreSQL high availability and replication: streaming replication, Patroni or equivalent HA tooling, logical replication, and failover procedures.
Production experience with Azure Database for PostgreSQL: Flexible Server, HA configuration, PITR, read replicas, and Azure Monitor integration.
Proficiency in scripting for database automation: Python or Bash for maintenance scripts, migration utilities, audit tooling, and CI/CD integration.
Experience with CI/CD pipelines in the context of database delivery: integrating migration tooling into GitHub Actions or equivalent, with environment promotion and rollback gates.
Strong understanding of database security: RBAC, RLS, secrets management (Azure Key Vault), encryption at rest and in transit, and audit trail requirements.
Hands-on proficiency with Claude Code: using it daily for migration script authoring, query review, documentation generation, and operational automation.
Strong communication skills: able to translate database constraints and risks clearly to Backend Engineers, Data Engineers, and product stakeholders.
This is how we organize our workThis is how we work
agile
This is how we work on a project
Continuous Deployment
Continuous Integration
issue tracking tools
What we offer
Contract under Polish law: B2B or Umowa o Pracę
Benefits such as private medical care, group insurance, Multisport card
English classes available
Hybrid work (at least 1 day/week on-site) in Warsaw (Mokotów)
Opportunity to work with excellent professionals
High standards of work and focus on the quality of code
New technologies in use
Continuously learning and growth
International team
Pinball, PlayStation & much more (on-site)
Benefits
sharing the costs of sports activities
private medical care
life insurance
remote work opportunities
fruits
video games at work
coffee / tea
drinks
parking space for employees
leisure zone
Pinball, PlayStation & much more
English classes
Recruitment stages
A quick phone call with our Recruiter.
Online technical interview, testing your skills.
II face-to-face interview with your potential supervisor.
️Feedback.
Join a growing team of dedicated professionals! We love to pass on the knowledge to grow excellence, speak our minds without playing politics, and just enjoy hanging around together. If you share our passions - we want to meet you! So go ahead and apply.
Webellian Sp. z o.o.
Webellian is a well-established Digital transformation and IT consulting Firma committed to creating a positive impact for our clients. We are driven by shared values, strong principles, and a passion for innovative and disruptive technologies. We are a community of truly passionate engineers and senior advisors who work with our clients across industries, playing a deep and meaningful role in accelerating and realizing their vision and strategy.
Please include the following statement: I hereby authorize Webellian Polska Sp. z o.o. to the process personal data provided in this document for realising the recruitment process pursuant to the Personal Data Protection Act of 10 May 2018 (Journal of Laws 2018, item 1000) and in agreement with Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (General Data Protection Regulation).
Szczegóły oferty:
Firma: Webellian Sp. z o.o.
Stanowisko: Senior Database Administrator
Miejsce pracy: Mazowieckie
Kraj: PL
Jak złożyć aplikację:
Po zapoznaniu się z kryteriami i wymaganiami opisanymi w informacjach o pracy Senior Database Administrator at the office Mazowieckie powyżej, niezwłocznie przygotuj dokumenty aplikacyjne, takie jak list motywacyjny, CV, kopię dyplomu oraz inne załączniki. Wyślij aplikację, klikając 'Następna strona' poniżej.
TO OGŁOSZENIE WYGASŁO (ponad 30 dni temu).
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