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Rostow GokengRG

Rostow Gokeng

Senior Java Developer/Spring Boot/Devops/AWS

€600/day
Achères, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Rostow

Senior Java Developer with over 13 years of experience in software engineering, specializing in Java/Spring development, with solid skills in Cloud and DevOps. I have been involved in the design and implementation of robust architectures (monolithic, microservices, hexagonal), the setup of CI/CD pipelines and cloud-native solutions (AWS). I also had initial experience in BigData environments, particularly on Databricks regarding the migration of existing jobs on serverless clusters in a FinOps strategy and also the setup of jobs using Databricks APIs. I am a proponent of practical software engineering principles: Clean Code, SOLID, TDD.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Achères (up to 50km)

Experience

  • Société Générale
    Senior Java Developer
    BANKING AND INSURANCE
    August 2024 - Today (2 years)
    Paris, France
    **Project**: Implementation of the "Certification Factory" project, which is a redesign of an existing system to comply with central bank requirements. The system will eventually allow for the calculation of RWA (Risk-Weighted Assets) based on local and group situation data.
    • Development of the core application called "Control-center" which allows for the management of the repository, basic technical data, as well as the orchestration and monitoring of different jobs (workflows and pipelines) during monthly and quarterly closings.
    • Development and implementation of CI/CD pipelines on Jenkins and Terraform for the delivery of applications within the project scope.
    • Deployment of applications on AWS and calculation jobs on Databricks.
    • Implementation of the "FinOps" approach aimed at reducing operational costs on Databricks by migrating certain jobs to serverless environments, as well as setting up Jenkins jobs to interact with Databricks for cluster changes and stopping long-running jobs.
    • Migration of applications from Nexus to JFrog Artifactory as part of security standardization.
    Databricks Spring boot AWS Terraform Java17
  • Nexity
    Senior Java Developer
    REAL ESTATE
    June 2022 - June 2024 (2 years)
    Paris, France
    **Project**: Complete redesign of the Nexity customer area for individuals (The existing application, monolithic and developed in C#, must be completely rewritten and enriched into a microservices application based on Spring Boot/Spring Cloud.


    • Development of the various Mynexity program journeys (residential real estate journeys for new purchases, tenant journeys, secure messaging, etc.)
    • Development in the various microservices (Core, Residential Real Estate, Messaging).
    • Participation in various production releases.
    • Integration and deployment in environments using Azure DevOps

    • Code review, Pair programming, Craft sessions, reverse engineering in the C# application. Java 17, Jira, Spring SonarCloud, Kubernetes, AWS AWS AWS AWS DataDog.
    Java17 Java Spring Boot AWS Azure DevOps Kubernetes
  • Crédit Agricole CIB
    TECHNICAL ANALYST JAVA-CALYPSO
    BANKING AND INSURANCE
    June 2020 - April 2022 (1 year and 11 months)
    **Projects**: Evolutionary and corrective maintenance on Crédit Agricole Back Office applications based on the CALYPSO platform. These applications are intended for the back-office processing of interest rate (FX) and bond products.


    • Calypso workflow customization (trade workflow, transfer workflow, message workflow, rules, filters, etc).
    • Calypso Scheduled Tasks creation and customization to be integrated with Control-M.
    • Calypso Message and documents customization (Payment message, Confirmation message, advice documents, message templates, etc).
    • Calypso reporting customization (Report template, Report, Report style, Report output, etc).
    • Calypso Engine customization (CRE engine, MessageSender engine, etc).
    • Calypso accounting (Accounting event, CREs generation and customization, etc).
    • Support for the support team and BAs for analysis and debugging.
    • Release management (Development and configuration of Jenkins jobs for generating release management-related reports).
    • Integration and deployment in different environments.

    **Methodology**: Scrum

    **Technical Environment**: Java 8, Calypso back office, Jenkins, Jira, Linux Servers
    Java Calypso Jenkins Atlassian JIRA Linux

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Education

  • Computer Engineering Design Engineer
    Ecole Nationale Supérieure Polytechnique, Yaoundé
    2011

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