Senior Database Reliability Engineer (PostgreSQL, IaC)
New
C
capital.comFinancial services
Limassol, Cyprus; Sofia City, Bulgaria; Warsaw, Mazowieckie, PolandFull-TimeSenior
Salary not disclosed
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Job Details
- Experience
- 5+ years running production databases as a DBRE, SRE, platform or database engineer
- Required Skills
- PostgreSQLPythonGrafanaPrometheusCI/CDTerraformAnsible
Requirements
- Bring deep production experience running PostgreSQL at scale, including MVCC, vacuum and bloat, locking, physical and logical replication, and query planning.
- Have 5+ years running production databases as a DBRE, SRE, platform engineer, or database engineer.
- Use infrastructure as code as a normal working practice, with changes version-controlled and reviewed before application.
- Use CI/CD pipelines for infrastructure and database changes, including schema migrations.
- Have experience designing high availability and disaster recovery, including replication, automated failover, and multi-region or multi-cloud redundancy.
- Have a track record of zero-downtime changes, such as online migrations, major-version upgrades, or moving data between clusters.
- Understand application-database interactions, including connection pools, ORMs, transaction scope, retries, idempotency, and safe deployment order.
- Define observability measures, alert on SLOs, and verify changes with data.
- Script operational automation in Python, Bash, or Go.
- Be comfortable working in a regulated financial services environment with access control, encryption, and audit trails.
- Nice to have: Terraform, Ansible, production MySQL, Redshift, ClickHouse, DynamoDB, logical replication or CDC tooling, Kubernetes, Java services, Linux performance tuning, or Vault and other secrets managers.
Responsibilities
- Design and run highly available PostgreSQL across zones and regions, with automated, tested failover and fencing against split-brain.
- Define database infrastructure as code and apply peer-reviewed changes through CI/CD pipelines with drift detection.
- Build self-service database provisioning for product teams.
- Plan and execute migrations, upgrades, and table moves with zero or near-zero downtime.
- Partner with developers on schema changes, queries, connection pooling, transaction scope, retries, and expand-and-contract migrations.
- Define SLOs and build SLO-based alerts and dashboards to identify latency and capacity problems.
- Design backup and recovery, and verify them with scheduled restore and failover tests measuring RTO and RPO.
- Secure data through least-privilege access, secrets management, encryption, audited access, and PII masking.
- Participate in incident response and on-call, write blameless post-mortems, and follow through on actions.
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