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Islem SellamiIS

Islem Sellami

Software Development Engineer

€600/day
Vélizy-Villacoublay, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Islem

Software Development Engineer with over 5 years of experience, I design and develop robust and scalable software solutions, primarily in C++, Python, and Node.js. I have worked in critical environments (railway, industrial supervision), where I was responsible for the implementation, maintenance, and validation of complex software modules. I master the entire development cycle, integrating DevOps best practices (CI/CD, automation, AWS) within a quality and Agile approach.

Currently seeking a new opportunity or mission, I am motivated by projects with high technical impact, where quality, performance, and rigor are essential.

For more information, please do not hesitate to contact me. It will be a pleasure to discuss with you.

See you soon !
  • English

    Fluent

  • French

    Fluent

  • Arabic

    Native or bilingual

  • German

    Basic

Can work on-site
Vélizy-Villacoublay (up to 20km)

Experience

  • Hitachi Rail
    Railway Supervision Software Engineer ATS
    September 2024 - Today (1 year and 9 months)
    Framework Contract RATP L13, L3, L3B, L5, L12: Migration and homogenization of software versions:
    • Development and software integration of new features
    • Incident processing and technical support
    • Analysis and correction of software bugs
    • Verification tests of modules on platform or in simulated environment
    • Delivery of versions and installation tools
    • Creation of client mockups (change from PMI to APISIG)
    Tools: ATS, C++, TCL, Git, Agile Methodology, JIRA, UNIX
  • ALSTOM
    Software Development Engineer
    TRANSPORTATION
    January 2022 - August 2024 (2 years and 6 months)
    St.-Ouen, France
    Within the ATS (Automatic Train Supervision) department:
    • Design and development in C++ of server modules / Iconis product
    • Analysis and correction of anomalies and operational maintenance of the system.
    • Writing technical documents: code documentation, algorithms, interfaces, APIs
    • Verification tests of modules on platform or in simulated environment

    • Create the SNMP module with C#
    • Projects: Amsterdam - Lyon
    C++ ATS S2K C#
  • Beagle
    DevOps Engineer
    SOCIAL NETWORKS
    November 2020 - January 2022 (1 year and 3 months)
    Paris, France
    *Project Manager: Managed a team of 4 developers for 3 projects:

    Task organization with Agile Scrum methodology
    Timeline
    Ticket management
    Project design (Class diagrams, specifications...)

    *Design and development of mobile applications, using a serverless microservices architecture in AWS Cloud:

    Design and development of a mobile application (NodeJs back-end and React Native front-end)
    Hosting of the FRONT part in AWS Cloud using the S3 service.
    Hosting of the API part in AWS Cloud using Lambda and API Gateway services.
    Hosting of the database using the AWS DocumentDB service.
    Securing the application using the AWS Cognito authentication service.
    Creating a domain name for the application using the AWS Route53 service.
    Implementing a cache service for the application using the AWS CloudFront service.
    Securing the application in HTTPS using the AWS Certified Manager service.

    *Automation of application integration, deployment, and testing:

    Implementation of CI/CD workflows for the Front part of the application with Git, Jenkins, and S3.
    Implementation of CI/CD workflows for the API part of the application with Git, Jenkins, and Lambda.
    Automation of development tests using Selenium for functional tests and JMeter for performance tests.
    Tools: React Native, Expo, NodeJs, Python, Git, AWS, Linux, Microservices, CI/CD, Jenkins,
    Agile Scrum Methodology, Jira.
    React Native Node.js AWS Fargate DevOps Mobile Development MongoDB

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Education

  • Master 2
    Paris Saclay
    2019
  • Computer Engineering
    ENSI
    2018

Skill set

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