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Shuwen NiSN

Shuwen Ni

Technical Architect / Tech Lead

€650/day
Paris, FR
8-15 years
AWS Certification
TOGAF
Java/NodeJS
Microservices
Agile Methodology

Average response time: 1 hour

Freelancer profile translated to English.
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About Shuwen

Senior Technical Architect— Cloud, TOGAF, Fullstack Java/NodeJS/React/Angular

Looking for an architect capable of framing, designing, and delivering your IT projects in a demanding environment? With over 10 years of experience in banking and insurance, I will guide you from technical strategy to production.

My background:

BNP Paribas (payment processing, securities services), Société Générale (digital, retail banking), and BPCE SI Assurance. I have designed and launched critical applications handling large volumes, managed distributed teams in France/India, and supported major transformations (project redesign, infrastructure migration, integration).

What I bring concretely:


**Application and Microservices Architecture**: Java 21, Spring Boot, Spring Security, REST/OpenAPI APIs, Kafka, MongoDB, PostgreSQL, Oracle



**Cloud and DevOps**: Kubernetes, OpenShift, Docker, AWS, Helm, Terraform, CI/CD industrialization: GitLab CI, ArgoCD, Jenkins, Vault, Sonar, Fortify



**IT Integration and Security**: API Management (Apigee), SSO/OpenID, IBM MQ Series, secure transfers (SFTP, Axway CFT)



**Governance**: Architecture documents, infrastructure diagrams, standards and best practices, MEGA HOPEX


Frontend: React, Angular, TypeScript

Certifications:

TOGAF 10 Enterprise Architecture (Level 1 and 2)
ArchiMate Foundation
AWS Certified Solutions Architect Professional
Databricks Generative AI Fundamentals

Management and Methodology:

Cross-functional tech lead in Scrum, multi-team coordination, code reviews, coding guidelines, developer coaching, BDD/TDD, GenAI acculturation.

Types of missions: technical framing and POC, application architecture, cross-functional tech lead, IT redesign and modernization, platform migration, system integration, observability and monitoring (Dynatrace).

Trilingual in French, English (professional), and Chinese (native).

Available in Île-de-France, hybrid or remote.

Let's talk about your project.

  • Chinese

    Native or bilingual

  • French

    Fluent

  • English

    Fluent

Can work on-site
Paris (up to 50km)

Experience

  • BPCE SI Assurance
    Technical Architect / Tech Lead
    CIVIC AND SOCIAL ORGANIZATIONS
    July 2025 - Today (11 months)
    • • Technical specifications and cross-functional solution framing for several Insurance IT projects
    • • Standardization of practices (agile, quality) + BDD/Cucumber (executable specifications)
    • • Acculturation and deployment of authorized GenAI tools at BPCE Stack: Java, Spring Boot, Angular, Oracle, MongoDB, Kafka, Microsoft Visio.
  • BNP Paribas ITG
    Tech Lead / Technical Architect (Payment Processing / CB)
    March 2024 - July 2025 (1 year and 4 months)
    • • Design and launch of a CB payment management application (architecture choices, end-to-end delivery)
    • • Cross-functional management: coordination of France/India teams, code reviews, coding guidelines, security, observability / monitoring
    • • API / SSO integration and CI/CD industrialization (GitOps) Stack: React/TypeScript (OpenAPI), Java 21/Spring Boot/Spring Security, PostgreSQL, Kafka, MongoDB, Apigee, OpenID, Docker/Kubernetes, GitLab CI, ArgoCD, Helm, Vault, Ansible, Dynatrace, IBM Cloud, DMZR, Archimate, MEGA HOPEX
  • Société Générale (RESG)
    Cross-functional Tech Lead
    May 2021 - March 2024 (2 years and 10 months)
    • • Cross-functional management on 3 projects (Scrum): AngularJS → React/NodeJS redesign and multi-team coordination
    • • Coordination of architecture / infrastructure / full-stack development for the scope
    • • Platform migration: OpenShift → DockerEE Stack: React, Angular, TypeScript (OpenAPI), NodeJS (NestJS, TypeORM), Java Spring Boot, PostgreSQL, REST, OpenID, AWS, RabbitMQ, GitHub/GitLab, Docker, Jenkins, Sonar, Kubernetes
Check out Shuwen's experience

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Education

  • Certified TOGAF 10 Enterprise Architecture – Level 1 and 2
    Open Group
    Certified TOGAF 10 Enterprise Architecture – Niveau 1 et 2
  • Certified ArchiMate Foundation
    Open Group
    Certified ArchiMate Foundation
Check out Shuwen's education

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