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Senior Database Administrator

UnlimitBelgrade
On-site Full-time

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Experience Level

Senior

Qualifications

5+ years of hands-on experience in database administration or engineering. Strong proficiency in PostgreSQL, including replication, partitioning, performance tuning, PgBouncer/RDS Proxy, vacuum strategies, and pgvector. Extensive experience with Oracle databases, focusing on backup, restore, and performance tuning.

About the job

Join Our Team at Unlimit
 
Unlimit stands at the forefront of the fintech revolution, powering the world's largest proprietary payments infrastructure.
Founded in 2009, we operate from 17 global offices and boast a team of over 700 experts, adept at integrating more than 1,000 payment methods into a cohesive platform. From London to São Paulo, we enable businesses to expand internationally with a comprehensive suite of financial tools, including payment processing, alternative payment methods, multicurrency business accounts, card issuance, banking-as-a-service, and crypto services.
Our mission is to dismantle financial barriers, facilitating seamless money movement worldwide. We equip innovative businesses with the tools they need to effortlessly manage and execute payments, no matter where they operate.

The Role
We are seeking a skilled Senior Database Administrator to enhance and maintain our production database environment across PostgreSQL, Oracle, and AWS-managed database services.

This hands-on technical position emphasizes the reliability, performance, availability, security, and automation of our critical databases. You will collaborate closely with engineering, SRE, and security teams to ensure our database systems are consistently stable, scalable, and secure by design.

Key Responsibilities
- Administer and support production environments spanning PostgreSQL, Oracle, Aurora/RDS, MongoDB, and DocumentDB.
- Guarantee high availability and preparedness for disaster recovery (replication, backups, PITR, and failover testing).
- Execute performance tuning, query optimization, and capacity planning.
- Develop and uphold backup/restore protocols and upgrade strategies.
- Monitor database health, defining actionable alerts and dashboards.
- Streamline operational processes through automation and Infrastructure as Code methodologies.
- Advocate for secure access models and enforce governance standards.
- Engage in incident response and root cause analysis pertinent to database systems.
- Contribute to the creation of database standards, documentation, and operational runbooks.
- Assist developers with schema design, indexing strategies, and performance troubleshooting.

Required Qualifications
- A minimum of 5 years of practical experience in database administration or database engineering.
- Extensive expertise in PostgreSQL including:
replication (physical/logical),
partitioning,
performance tuning,
PgBouncer / RDS Proxy,
vacuum strategy,
pgvector.
- Solid experience with Oracle including:
backup/restore,
performance tuning,
and other related tasks.

About Unlimit

Unlimit is a leading global fintech company established in 2009, recognized for its extensive proprietary payments infrastructure and a commitment to breaking down financial barriers. With a team of over 700 experts spread across 17 global offices, we empower businesses to grow internationally using our unified financial solutions.

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