Senior Java / Microservices

Werben HR; Buenos Aires; Presencial; ARS 134.492.961 - 209.211.273; Jornada completa

Descripción de la vacante

Werben HR is seeking a Senior Java Engineer with 7+ years of experience to architect, develop, and scale high‑performance distributed systems. You will work on production‑ready microservices, event‑driven architectures, and cloud deployments, ensuring clean code and reliability.

Responsibilities include designing scalable microservices, implementing Kafka integrations, and deploying on OpenShift or AWS. You will lead technical quality initiatives and collaborate in an Agile environment to solve

Formación

• 7+ years of hands-on software development experience with enterprise backend systems.
• Proficiency in Java 8+ including concurrency, streams, functional programming, and design patterns.
• Experience building production-grade applications using Spring Boot and related ecosystem modules.
• Hands-on in designing, developing, and operating distributed microservices architectures.
• Strong understanding of Apache Kafka and event-driven integration patterns.
• MongoDB NoSQL modeling, indexing, and query optimization.
• Familiarity with OpenShift and/or AWS for deployment, scaling, and monitoring.
• Excellent communication and collaborative skills within agile teams.

Responsabilidades

• Design, build, and maintain scalable, high-throughput microservices using Java and Spring Boot.
• Implement event-driven architectures and messaging integrations using Apache Kafka.
• Design, query, and optimize NoSQL databases using MongoDB for backend services.
• Deploy, scale, and monitor containerized applications on OpenShift and/or AWS environments.
• Drive code quality through rigorous code reviews, unit testing, CI, and clean design principles.
• Diagnose complex technical issues, optimize backend performance, and troubleshoot distributed systems in production.

Conocimientos

Core Java

Spring Framework

Microservices

Event-Driven / Kafka

MongoDB

OpenShift

AWS

CI/CD

Kubernetes

System Design

Collaborative

Code Quality

Herramientas

Apache Kafka

Jenkins

GitHub Actions

GitLab CI

Docker

Kubernetes

OpenShift

AWS

Descripción del empleo

About the Role

We are seeking a Senior Java Engineer with 7+ years of experience to join our engineering team. In this role, you will play a key part in architecting, developing, and scaling high-performance distributed systems. You will work on production-ready microservices, event-driven architectures, and cloud deployments, ensuring clean code, system reliability, and best engineering practices.

Key Responsibilities

• Architecture & Development: Design, build, and maintain scalable, high-throughput microservices using Java and Spring Boot.


• Event-Driven Systems: Implement event-driven architectures and messaging integration using Apache Kafka.


• Data Modeling: Design, query, and optimize NoSQL databases using MongoDB for backend services.


• Cloud & DevOps: Deploy, scale, and monitor containerized applications on OpenShift and/or AWS environments.


• Technical Leadership & Quality: Drive code quality through rigorous code reviews, unit testing, continuous integration, and clean system design principles.


• Problem Solving: Diagnose complex technical issues, optimize backend performance, and troubleshoot distributed systems in production.

Technical Qualifications

• Senior Experience: 7+ years of hands-on software development experience with enterprise backend systems.


• Core Java: Deep proficiency in Java (Java 8+), including modern concurrency, streams, functional programming, and design patterns.


• Spring Framework: Proven experience building production-grade applications using Spring Boot and related ecosystem modules.


• Microservices: Hands-on experience designing, developing, and operating distributed microservices architectures.


• Event-Streaming / Messaging: Solid understanding of Apache Kafka and event-driven integration patterns.


• Databases: Strong hands-on experience with MongoDB (NoSQL modeling, indexing, and query optimization).


• Cloud Platforms: Familiarity with OpenShift and/or AWS (ECS, EKS, EC2, CloudWatch) for application deployment, scaling, and operational monitoring.

Soft Skills & Engineering Mindset

• Analytical Thinking: Strong problem-solving mindset and ability to debug complex cross-system challenges.


• Code Excellence: Passion for writing clean, maintainable, efficient, and well-tested code.


• System Design: Deep understanding of software design principles (SOLID, DDD, fault tolerance, circuit breakers).


• Collaborative: Excellent communication skills and comfortable working in fast-paced Agile team environments.


• Nice-to-Have (Bonus)


• Experience with CI/CD automation pipelines (Jenkins, GitHub Actions, GitLab CI).


• Exposure to Kubernetes or Docker container orchestration.


• Knowledge of relational databases (PostgreSQL/MySQL) alongside MongoDB.