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Helmi El AremHE

Helmi El Arem

MuleSoft Developer

€500/day
Lyon, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Helmi

I am an Integration Engineer, specializing in API design and enterprise integration solutions with the MuleSoft Anypoint platform. With my experience at companies like PwC and Nexofortis, I design scalable and secure APIs to interconnect complex business systems and support digital transformation.

🔧What I do:

  • Design and deploy REST and SOAP APIs with MuleSoft.
  • Develop integration solutions connecting Salesforce, AWS, and business applications.
  • Automate business processes with Workato to optimize workflows between different services.
  • Monitor and optimize API performance, ensuring 99.9% system availability in production.
  • Collaborate with DevOps teams to implement CI/CD pipelines ensuring reliable and automated deployments.

🎯Technical Skills:

Integration Platforms:
MuleSoft Anypoint Platform, Workato, Salesforce Data Cloud.

API Technologies:
REST, SOAP, GraphQL, OpenAPI, RAML.

Languages:
Java, Python, JavaScript, SQL.

Cloud & Tools:
AWS, Microsoft Azure, MongoDB, PostgreSQL, Git, Jenkins.

Methodologies:
Agile, API-First, microservices architecture.


📜Certifications:

  • ✓ MuleSoft Certified Developer
  • ✓ Salesforce Data Cloud Consultant
  • ✓ Solace Certified Solutions Consultant
  • ✓ Workato Pro Automation

Passionate about the challenges of system integration, I enjoy designing high-performance API architectures and staying at the forefront of innovation in API management, integration, and cloud technologies.

I am always open to new opportunities to connect with professionals in the field, as well as to share best practices around integration and APIs.
  • French

    Native or bilingual

  • English

    Native or bilingual

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

Experience

  • Nexofortis
    MuleSoft Consultant
    August 2025 - Today (1 year)
    Context: API supervision and management in production within a team of 3 developers.

    - Supervision and monitoring of APIs via Anypoint Monitoring, with implementation of technical and functional alerts to ensure 99.9% availability
    - Support and resolution of production incidents (log analysis, emergency fixes, communication with DevOps teams)
    - Facilitation of technical workshops with functional teams to translate business requirements into integration specifications
    - Design and implementation of advanced security strategies (OAuth2 policies, Basic Auth, Rate Limiting, Throttling, Client ID enforcement)
    - Writing of user guides and standard operating procedures for the support team
    - Technology watch on new MuleSoft features and recommendations for continuous improvement
    - Reduced incident resolution time by 35% through optimized monitoring and alert configuration
    - Successfully resolved 50+ production incidents with minimal business impact
    MuleSoft Anypoint Platform API Management CI/CD API Security Cloudhub
  • PWC TAC
    INTEGRATION ENGINEER
    WINE AND SPIRITS
    June 2023 - July 2025 (2 years and 1 month)
    Tunisia
    PROJECT CONTEXTS: API Design | API Management.
    • Gathering requirements from project managers for data synchronization with on-premises Jira.
    • Importing CSV files and validating mapping between source files and target projects.
    • Creating RAML in API Design.
    • Implementing Mule flows to synchronize CSV file exchange between project management software and on-premises Jira, using Anypoint Studio.
    • Creating regression tests using Postman.
    • Deploying APIs on CloudHub 2.0, and applying security policies via API Manager (OAuth 2.0).
    • Writing technical documentation for the API solution (sequence diagrams and solution presentations). Technologies: Anypoint Platform, API Manager, RAML, Dataweave, Jira, Cloudhub2.0, Object Store
    API Management Gitlab CI/CD API Manager Anypoint Studio Maven
  • Talan
    INTEGRATION ENGINEER
    LUXURY GOODS
    January 2022 - June 2023 (1 year and 5 months)
    Tunisia
    PROJECT CONTEXTS: API Design | API Management.
    • Writing technical documents for API solutions, in compliance with the API-led Connectivity architecture.
    • Designing, developing, and supporting integration solutions using MuleSoft.
    • Configuring data flows and integrating complex systems.
    • Using Anypoint Studio for developing MuleSoft applications, using predefined components and custom code.
    • Troubleshooting technical issues related to integration and optimizing performance.
    • Collaborating with functional and technical teams to analyze needs and propose suitable solutions.
    • Deploying solutions connecting various business systems.
    • Creating unit tests with MUnit and regression tests with Postman. Technologies: Anypoint Platform, Anypoint Studio, RAML, Dataweave, Salesforce, AWS, Solace, Git, Maven
    API Design Git/Github MuleSoft Anypoint Platform REST APIs AWS S3

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Education

  • Full Stack JavaScript Web Development Training (MERN Stack)
    Go My Code.
    2021
    Formation de développement Web Full Stack Java Script (MERN Stack)

Certifications

  • Salesforce MuleSoft Developer 1
    Salesforce
    2024
    Apache Maven Anypoint Platform Anypoint Studio RAML Dataweave

Skill set

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