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Eldar Tech Stack

Payment systems and fintech software for Latin American institutions

Technology, Information and Internet Comuna 4, Autonomous City of Buenos Aires 51–200 employees Founded 2009 Privately Held

Eldar builds transactional software and solutions for payment processors and financial institutions across Latin America, with 15+ years in the space. The stack—Java, Spring Boot, Kafka, PostgreSQL, Cassandra, ISO 8583—reflects a mature backend architecture for high-volume, mission-critical payment flows. Active hiring skews senior and technical (7 engineering roles, 5 senior positions), while pain points cluster around talent retention and data pipeline challenges, suggesting infrastructure scaling and team stability are parallel priorities.

Tech Stack 49 technologies

Core StackJava AWS Kubernetes OpenShift Jenkins Linux Kafka RabbitMQ PostgreSQL MySQL MongoDB Cassandra GitLab CI/CD Docker Power BI Power Query Python Jira Azure DevOps C Android Azure GCP Git SQL ISO 8583 Spring Boot Excel VBA PowerPoint+19 more

What Eldar Is Building

Challenges

  • Improving development processes
  • Retention of talent
  • Growth of talent
  • Complex data transformation
  • Manual data load
  • Data consolidation across initiatives
  • Risk minimization and business continuity
  • Technology and process transformation
  • Ensuring tax compliance
  • Reducing tax errors

Active Projects

  • Data consolidation for dashboards
  • Data cleaning routines
  • Raid log maintenance
  • Pos android application development
  • Lead regional cab for technology areas
  • Coordinate impact and risk assessment
  • Monitor and report change metrics
  • Qr operations solution
  • Iso 8583 messaging platform
  • Participación en regímenes promocionales

Hiring Activity

Steady10 roles · 4 in 30d

Department

Engineering
7
Ops
2
Finance
1
HR
1
Sales
1

Seniority

Senior
5
Mid
4
Lead
2
Manager
1

Notable leadership hires: Tech Lead, Java Lead

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About Eldar

Eldar is a Buenos Aires–based software firm focused on payment systems, transaction platforms, and fintech solutions for medium-market and enterprise clients across Latin America. The company has operated since 2009 and maintains a 51–200-person team with deep expertise in payment industry architecture, compliance, and regional deployment. Current work spans POS applications, QR-based payment operations, ISO 8583 messaging platforms, and data consolidation tooling for financial dashboards. They operate in Argentina and Brazil and partner with regional and global payment technology vendors.

HeadquartersComuna 4, Autonomous City of Buenos Aires
Company Size51–200 employees
Founded2009
Hiring MarketsArgentina, Brazil

Frequently Asked Questions

What tech stack does Eldar use for payment systems?

Java, Spring Boot, Kafka, PostgreSQL, Cassandra, Android, AWS, Azure, GCP, Kubernetes, Docker, and ISO 8583 messaging protocols. Also uses RabbitMQ, Jenkins, Git/GitLab CI/CD for delivery.

What is Eldar working on right now?

POS Android application development, QR-based payment operations, ISO 8583 platform modernization, data consolidation for dashboards, and regional technology leadership initiatives across their client base.

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