Senior Java Backend Engineer: Reactive Microservices Lead

Citi; New York (NY); Ibrido; USD 121.000 - 171.000; Tempo pieno

Vantaggi offerti da questo lavoro

Hybrid working model

Professional development

Competitive compensation

Employee assistance program

Global collaboration

Descrizione del lavoro

Citi’s Technology division seeks a Senior Java Backend Engineer to design high‑performance, event‑driven systems at global scale. You will build reactive microservices, integrate real‑time data streams, and drive quality across a modern Java stack.

Collaborating with product, frontend, and architecture, you will shape solutions that impact Citi’s clients worldwide. The role emphasizes Spring WebFlux, Kafka, MongoDB, Elasticsearch, and code reviews, with mentoring responsibilities.

Competenze

• 6–10 years of backend software development experience with Java
• Proficiency in Java (8+), including functional programming with Lambdas and reactive paradigms
• Hands-on experience with Apache Kafka
• Solid MongoDB NoSQL data modelling and Elasticsearch for search/analytics
• Expert-level test-driven development using JUnit with strong unit testing discipline
• Git-based collaboration, PRs, code reviews, and branching strategies (GitFlow)
• Familiarity with CI/CD pipelines and automated testing

Mansioni

• Build and deploy asynchronous, event-driven Java microservices.
• Design reactive backend services using Spring WebFlux.
• Develop and maintain real-time data pipelines using Apache Kafka.
• Engineer search and analytics with Elasticsearch.
• Architect and optimize data persistence in MongoDB.
• Champion code quality through TDD, comprehensive JUnit test suites, and code reviews.
• Mentor mid-level engineers and set coding standards.
• Partner with product, infrastructure, and architecture teams to deliver features.

Conoscenze

Java 8+

Reactive programming

Spring WebFlux

Apache Kafka

MongoDB

Elasticsearch

JUnit

Git workflows

CI/CD

REST API design

Formazione

Bachelor’s degree

Master’s degree preferred

Strumenti

Docker

Kubernetes

AWS

Azure

GCP

Descrizione del lavoro

Citi’s Technology division seeks a Senior Java Backend Engineer to design high‑performance, event‑driven systems at global scale. You will build reactive microservices, integrate real‑time data streams, and drive quality across a modern Java stack.

Collaborating with product, frontend, and architecture, you will shape solutions that impact Citi’s clients worldwide. The role emphasizes Spring WebFlux, Kafka, MongoDB, Elasticsearch, and code reviews, with mentoring responsibilities.