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Arthur GereyAG

Arthur Gerey

Fullstack Developer | Java Springboot Angular

€500/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Arthur

Fullstack & DevOps Developer | Java Springboot Angular Kubernetes

Areas of intervention:
  • Information systems withhigh criticality(Industry, Infrastructure, Fintech)
*Microservicesarchitecture, high-throughput applications, and real-time data

*Technical refactoring**, legacy **migration**, and restructuring of **complex IS
  • Softwareperformance**, **scalability**, and **securityaudits

Business Value & Methodology:
  • Understanding CTO / CEObusiness challenges
  • Pragmatic approach focused onstability and ROI
  • Integration intoAgile, Scrum, SAFeenvironments
  • Proactive communication andtechnical leadership

Backend Technical Stack:
  • Java 17+, **Spring Boot**, Spring Security
*Microservicesarchitecture, REST API, PostgreSQL
  • Quality:Clean Code**, **TDD**, **DDD**, Exhaustive **testcoverage

Frontend Technical Stack:
  • **Angular**, React.js
  • **TailwindCSS**, TypeScript, State Management

DevOps & Cloud Expertise:
  • Orchestration:Kubernetes(K8s), Docker, Helm
  • Automation: **CI/CD**, GitlabCI, GitHub Actions
  • Infrastructure observability andmonitoring

Based inLyon and Paris**, available for travel across **all of France.
Available forfull remote.

📩 Let's discuss your project!
Response within one hour, 7 days a weekvia Malt messaging or LinkedIn.
  • French

    Native or bilingual

  • English

    Native or bilingual

  • Spanish

    Conversational

  • Japanese

    Basic

Can work on-site
Paris (up to 50km), Lyon (up to 50km), Lille (up to 50km), Bordeaux (up to 50km), Nantes (up to 50km)

Experience

  • Enedis
    Full Stack Java/Angular Developer
    ENERGY AND UTILITIES
    November 2024 - Today (1 year and 9 months)
    Lyon, France
    Within DIGIT, the IS department of ENEDIS, I work on an internal Infrastructure Portal used by theentire national ISof ENEDIS.

    This Infra Portal consists of12 complex applicationswithspecific business logic(environment requests, infrastructure as code, namespace/cluster creation, business data visualization, etc.). This portal isparticularly criticalas it is thegateway to the entire ENEDIS IS.

    Thetechnical constraints are numerous(network zones, dependencies on external services, data retrieval, interfaces composed of complex business data, data access security, rights and administration management, etc.) and thebusiness concepts are complex**. **Understanding the businessand having aproduct visionare essential.

    We performmigrationsandversion upgrades(Angular, Java), integrate aproprietary Design System**, and manage our own **Kubernetes scripts**. We are also modernizing the user interface by working in **close collaboration with the UI/UX teams.

    Operating inAgile(hybrid Safe/Scrum), we collaborate withall ENEDIS IS stakeholdersto deliver amodern, performant, maintainable, and stable application.

    # Stack: Angular 12/18/19, Java 11/21, Springboot 2/3, Postgres SQL.
    Angular Java Spring Boot PostgreSQL Kubernetes
  • EDF
    Full Stack Java/Angular Developer
    ENERGY AND UTILITIES
    September 2021 - October 2024 (3 years and 1 month)
    Lyon, France
    Within EDF's Digital Manufacturing, I worked on several applications for the **nuclear sector**.

    The goal was to producehigh-performance MVPs with high business valuein short cycles (3-month PI) forvarious nuclear stakeholders and different business uses(incident management on power plants, X-ray test programming, defect analysis on cooling systems, etc.).

    Thetechnical constraints were numerous(data retrieval, interfaces composed of complex business data, data access security, rights and administration management, etc.) and thebusiness concepts were complex**. **Understanding the businessand having aproduct visionwere essential.

    Operating inAgile(hybrid Safe/Scrum), we collaborated with Business Analysts, UI/UX designers, and the Infra team to ensure anapplication that respected the business, was user-friendly, and high-performing.

    # Stack: Angular 11/13/16 (Material), Java 11/21, Spring Boot, Maven, Postgres, Tailwind CSS.
    Spring Boot Java Angular Maven PostgreSQL
  • AREA
    Full Stack Java/Angular Developer
    TRANSPORTATION
    September 2020 - September 2021 (1 year)
    Lyon, France
    Within AREA's IS, I developedseveral APIs and features for the customer area.

    These APIs and features were used by AREA's end-users and clients. There weresignificant challenges regarding their performance and stability.

    I alsomodernized their APIs**, performed several **version upgrades**, and carried out numerous **unit teststo ensure thereliabilityof the customer area.

    # Stack: Java 6, Apache Camel, OpenShift, MySQL, Angular 9. Development and maintenance of APIs for customer area management.
    Java Angular OpenShift MySQL Apache Camel

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Education

  • Engineering Degree - Digital Sciences
    Ecole supérieure de Chimie Physique Electronique de Lyon
    2020
  • University Diploma in Technology - Physical Measurements
    Université de Savoie
    2015

Certifications

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