Oracle & PostgreSQL Developer

About the Position

Oracle & PostgreSQL Developer

Location: Belgrade, Serbia

Company: Unlimit

About Unlimit

Unlimit is the global fintech powerhouse behind the world’s largest proprietary payments infrastructure. Founded in 2009, we operate across 17 global offices with 700+ experts, seamlessly integrating 1,000+ payment methods into a single platform. Our mission is to break down financial barriers and enable seamless money movement across borders.

Summary

We are looking for a Lead Oracle Developer to design, optimize, and evolve Unlimit’s enterprise-grade Oracle data platforms that power our global financial systems. You will lead database design and performance initiatives across OLTP and OLAP environments, ensuring scalability, reliability, and seamless integration with data pipelines and AI-driven analytics.

Responsibilities

• Shape the future of our data architecture, ensuring our databases are optimized, secure, and ready to support real-time operations at global scale.
• Define and drive the evolution of Oracle database development across high-volume transactional (OLTP) and analytical (OLAP) systems.
• Work closely with application teams, data engineers, and DBAs to plan and deliver complex database releases.
• Review critical code and ensure that performance, integrity, and reliability standards are consistently met.
• Lead a small team of developers, set priorities, and guide them in implementing best practices for design, testing, and optimization.
• Partner with platform and data teams to integrate Oracle data flows with modern pipelines, analytics systems, and AI workloads.

Requirements

• 6+ years of professional experience in Oracle SQL and PL/SQL development, ideally at or above OCP (Oracle Certified Professional) level.
• Solid understanding of OLTP and OLAP systems, including design, performance optimization, and maintenance.
• Proven experience developing and supporting 24x7 high-availability systems.
• Strong skills in query tuning, indexing, partitioning, and performance diagnostics using AWR/ASH or equivalent tools.
• Experience leading or mentoring a team of developers (2+ people).
• Proficiency with Git for version control and release management.
• Structured analytical thinking and attention to detail.
• Bachelor’s degree in Computer Science, Engineering, or a related IT field.
• English proficiency (B2 or higher) for effective collaboration in a global environment.

Nice to Have

• Knowledge of data warehouse design principles and ETL integration.
• Familiarity with AI or analytics workloads that leverage Oracle or hybrid data architectures.
• Experience with automation, CI/CD pipelines, and Terraform for database provisioning.
• Understanding of PostgreSQL or cloud-managed databases (e.g., Aurora, RDS).
• Proven ability to collaborate across teams to resolve production performance and scalability challenges.

We Offer

• Opportunity to work in a leading global fintech company.
• Be part of a diverse and inclusive team.
• Competitive salary and benefits.
• Professional growth and development opportunities.

About the Company

Unlimit is an equal opportunity employer. We believe passionately that employing a diverse workforce is central to our success. We make recruiting decisions based on your experience and skills. We welcome applications from all members of society irrespective of age, sex, disability, sexual orientation, race, religion or belief.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

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