Romain User

RU

Open to opportunities

Romain User

@romainemery

Java/Spring Boot backend engineer, 4 yrs. REST APIs, Kafka, Kubernetes & GitOps at banking scale. Remote-first, fluent English.

At Crédit Agricole Technologies & Services, I built a Java and Spring Boot REST API for asynchronous document archival, processing 100,000 documents daily across five Crédit Agricole business units.

I integrated Amazon S3 to modernize storage for more than 30 million documents, designed domain-driven backend services, and delivered adaptable folder-based document management solutions across business lines. I also own Helm deployment repositories and support GitOps delivery through ArgoCD.

Earlier, I developed GDPR data-processing batch jobs for banking databases, automated operations with Bash, and built a Java EE application for remotely restarting and diagnosing Windows services.

Experience

Work history, roles, and key accomplishments

CS

Current

Software Engineer

Current

Crédit Agricole Technologies & Services

Jul 2022 - Present (4 years 2 months)

Designed and built a production REST API in Java with Spring Boot for asynchronous document archival workflows, processing 100,000 documents per day. Integrated Amazon S3 to modernize document storage and implemented CI/CD/CT pipelines with Helm and ArgoCD.

Helm ArgoCD CI CD Domain Driven Design Java Spring Boot REST APIs S3 Docker Kubernetes

Education

Degrees, certifications, and relevant coursework

EP

Epitech

Master of Science, Big Data

Grade: Honors

Graduated with Honors in MSc Big Data.

EP

ECV Paris

Bachelor, Digital Project Management

Bachelor's degree in Digital Project Management.

UN

Université de Caen Normandie

Associate's Degree, Computer Science

Associate's Degree in Computer Science (French DUT equivalent).

Tech stack

Software and tools used professionally

Amazon S3

Kubernetes

MySQL

MongoDB

Spring Boot

Redis

JavaScript

Java

Java EE

Kafka

Windows

SQL

ArgoCD

Bash

Turnkey

Availability

Open to opportunities

Location

France

Authorized to work in

Social media

Job categories

Software Engineer Backend Engineer Java Developer DevOps Engineer Cloud Engineer Data Engineer Software Engineer Developer Software Developer IT Software Engineer Software Engineer Jobs Engineering Software Developer Software Engineer Software Systems Engineer Software Engineering Jobs

Skills

Java Spring Boot REST APIs Kafka S3 Docker Kubernetes Helm ArgoCD GitOps CI CD SQL MySQL SQL Server MongoDB Redis Git BASH Java EE HTML CSS JavaScript Domain Driven Design Windows Turnkey

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