Freelancer profile translated to English.
Back to original languageAbout Mohammed
Senior back-end developer and cloud consultant with over 12 years of experience, I work on SI redesign projects, microservices design, automation, and Java architecture optimization.
Certified AWS (Solutions Architect & AI Practitioner), Terraform, Java (SE & EE), SQL, and Scrum, I combine expertise in cloud, back-end, DevOps, and AI. My scope covers Java/Spring Boot, AWS, microservices architecture, testing (JUnit, Mockito, Cucumber), CI/CD with Jenkins, infrastructure as code with Terraform, and integration of generative AI solutions.
I have supported clients such as Société Générale, Europcar, SFR, and SNCF in agile contexts, with strong technical and product proximity.
Available for freelance missions in back-end development, AWS cloud architecture, AI, or automation.
French
Native or bilingual
English
Fluent
Arabic
Native or bilingual
German
Basic
Can work on-site
Paris (up to 15km)
Experience
- StetJava Engineer / Backup Tech LeadJuly 2022 - Today (3 years and 11 months)Paris, FranceMission: SEPA interbank clearing project, in a critical, secure, and cloud (AWS) environment.- Rapid skill development in a complex ecosystem (SEPA flows, Scala, Freetle, AWS) to fully contribute to the core SI topics:- Migration of SEPA messages to the SEPA 2019 standard (XML parsers, XSD, EPC compliance)- Migration of critical modules to Java 17, update of sensitive dependencies, remediation of vulnerabilities detected by Fortify- Migration from Log4j to Logback for enhanced application security- Automation of the test environment installation procedure (via Shell scripting):- Significant productivity gain and reduction of configuration errors- Implementation of Jira dashboards + introduction of Agile time boxing:- Reduction of daily meetings from 45 to 15 minutes- Skill development of new joiners on Scala and Freetle (coaching, pair programming)- Collaboration with SPE on:- Retro-documentation of existing modules- Preparation of critical migrations- Creation of an application component map to improve SI visibility- Collaboration with the AI team for functional requirements gathering- Creation and management of Jira tickets (incidents, evolutions, technical and business requests)Stack: Java 17, Spring Boot, Scala, ActiveMQ, XML/XSD, Logback, Freetle, AWS, Fortify, Nexus, Shell scripting, SSH, Git, Maven, Jenkins, Jira, IntelliJ IDEA, Linux, Agile/Scrum
- Nassimoxia consultingFounder – Cloud & Backend ArchitectOctober 2021 - Today (4 years and 8 months)Creation of the SIMUSALAIRE platform, a SaaS tool for simulating payslips, calculating taxes, and converting gross/net for freelancers, employees, and umbrella companies.Definition of the technical architecture in microservices and development of the Java back-end (Spring Boot) with REST API exposure.Provisioning of AWS cloud infrastructure with Terraform: EC2, IAM, ECR, SNS, VPC, CloudWatch.Implementation of automated CI/CD pipelines with Jenkins, Docker containerization, and secure deployment with NGINX.System monitoring with CloudWatch Logs, Prometheus, and Grafana; alerting via AWS SNS.Application security: identity management, IAM, audits, backups, and continuous optimization.Management of the product roadmap, technological watch, and user support.Technical environment: Java 17, Spring Boot, PostgreSQL, MongoDB, REST API, Docker, Terraform, Jenkins, AWS (EC2, IAM, ECR, SNS, CloudWatch), GitHub, NGINX, Maven, Prometheus, Grafana.Methodology: DevOps, Infrastructure as Code, Continuous Integration & Deployment (CI/CD), Agile (Kanban).
- Europcar International SASUSenior Back-end DeveloperAUTOMOBILEOctober 2019 - June 2022 (2 years and 8 months)Paris, FranceMission: Participation in the Click and Go program aimed at rebuilding Europcar's information system as a REST API, based on a microservices architecture.Main responsibilities:– Development of microservices for complete customer account management– Analysis of recurring errors to improve KPIs– Creation of an account verification tool for level 1 support– Implementation of monitoring dashboards on Kibana– Design of monitoring pages on Splunk– Leading technical training sessions and onboarding new team members– Code reviews, pull request validation– Writing unit and integration tests (Mockito, MockMVC)– Leading agile ceremonies (Scrum master)– Technical support for the team on complex tasksTechnical environment:Java 11, Spring Boot, Swagger, JUnit, WireMock, Jenkins 2, Pipeline, Kibana, Splunk, Oracle, Git, Jira, IntelliJ IDEA, LaunchDarkly, Selma, Postman, Maven, Sonar
Reviews
Thomas
Formatome
Reviewed on 11/28/2017
Very responsive and attentive to needs, he adapted well to the intern profiles and the requested course content.
Very professional, we are delighted with this first collaboration. For future missions, we would fully trust him.
Looking forward to it.
Recommendations
Be the first to recommend Mohammed
Help this freelancer shine by sharing your experience working together.
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- State Engineer in Software EngineeringENSIAS-National School of Computer Science and Systems Analysis2013
- Preparatory Class - MP (Mathematics and Physics)Moulay Driss High School2010
Certifications
- AWS Certified Solutions Architect – AssociateAws2025
- AWS Certified AI PractitionerAws2025