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Java/Spring Boot Developer – Real‑time FinTech Systems

Avenga · Province de Buenos Aires

Nuevo
Senior 🇬🇧 English
Java Spring Boot AWS EKS SQS SNS Clean Architecture Hexagonal Architecture JVM tuning

Descripcion del puesto

About the role

Avenga is looking for an experienced Java developer to join its FinTech team in Argentina. You will help design and scale high‑performance, low‑latency services that drive real‑time financial decisions for core transactional platforms.

Key responsibilities

  • Design, build, and evolve critical real‑time service architectures for high‑volume financial operations.
  • Lead the migration of backend components to Amazon EKS, managing related AWS services such as SQS and SNS.
  • Optimize system performance, scalability, and latency across distributed services.
  • Design and maintain versioned events to ensure traceability and auditability of transactional flows.
  • Mentor and provide technical guidance to engineering team members, promoting best practices.

Required profile

  • 5+ years of professional experience with Java and Spring Boot in demanding environments.
  • Proven expertise in real‑time decision systems and low‑latency processing.
  • Strong background in performance optimization, profiling, concurrency, and JVM tuning.
  • Hands‑on experience with modern architectural patterns such as Clean Architecture and Hexagonal Architecture.
  • Experience using AI‑assisted development tools (e.g., GitHub Copilot, Codex) to improve code quality.

Required skills

  • Java
  • Spring Boot
  • AWS (EKS, SQS, SNS)
  • Clean Architecture
  • Hexagonal Architecture
  • Performance profiling and JVM tuning
  • Low‑latency system design
  • AI‑assisted coding tools (GitHub Copilot, Codex)

What we offer

  • Opportunity to work on cutting‑edge FinTech platforms.
  • Collaboration with Data Science teams and exposure to machine‑learning models.
  • Professional growth in a global, technology‑focused environment.

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Avenga

Province de Buenos Aires