You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Ahmed Ben AbderrahmaneAB

Ahmed Ben Abderrahmane

Supermalter

Développeur Java | Spring Boot | Go

€600/day
Paris, FR
8-15 years

Average response time: 1 hour

About Ahmed

💻 Fort de 10+ ans d’expérience en développement informatique et architecture logicielle, j’accompagne mes clients sur des projets d'envergure en construisant des systèmes fiables, scalables et alignés avec leurs enjeux et visions produit et business.

📌J’interviens notamment sur :

- la conception d’APIs et services performants et sécurisés pour des applications critiques à fort trafic et volumétrie

- l’optimisation de systèmes existants (performance, scalabilité, résilience)

- la modernisation de plateformes legacy vers des architectures modernes.

🚀 Expériences clés :

- Développement de systèmes de facturation de Malt, leader européen des marketplaces freelances

- Refonte complète de systèmes de planification des opérations aériennes de Qantas, plus grande compagnie aérienne en Australie (remplaçant 25+ ans de legacy)

- Développement de solutions d’aide à la décision pour optimiser la planification des vols et la gestion des perturbations chez Qantas, améliorant ainsi l’efficacité opérationnelle et l’expérience client

- Conception de services et APIs scalables optimisant l'expérience de recherche de 5+ millions d’utilisateurs sur Ricardo, la plus grande plateforme e-commerce en Suisse

⚙️ J’applique des architectures éprouvées (DDD, microservices, event-driven) avec un focus sur la simplicité, la maintenabilité et la performance.

🛠️ Je m’inscris dans une approche “You Build It, You Run It”, avec un ownership end-to-end : conception, développement, déploiement et exploitation de systèmes critiques.

-----------------------
Tech Stack: Java (21), Spring Boot, Golang, Kotlin, SQL, PostgreSQL, MongoDB, Redis, Kafka, RabbitMQ, GCP, AWS, Apache Beam, Dataflow, Docker, Kubernetes, Terraform, CircleCI, GitHub Actions, Maven, Gradle, Grafana, Prometheus, Datadog.
  • English

    Fluent

  • French

    Native or bilingual

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

Experience

  • MALT
    Senior Software Engineer Java Kotlin Spring Boot
    SOFTWARE PUBLISHING
    February 2026 - Today (5 months)
    - Designing, developing and maintaining resilient billing systems to optimize invoicing, ensure regulatory compliance and enhance overall customer experience on Malt, the leading freelance marketplace in Europe.

    - Contributing to cross-functional initiatives at the intersection of product, engineering, finance, accountability and legal.
    Java Spring Boot Kotlin RabbitMQ PostgreSQL MongoDB
  • Swiss Marketplace Group (SMG)
    Senior Backend Engineer Java Spring Boot Golang
    E-COMMERCE
    October 2022 - January 2026 (3 years and 3 months)
    Nice, France
    • Designing, developing and maintaining scalable and high-performance backend systems optimizing the search experience for 5M+ users on Ricardo, the largest marketplace in Switzerland, by applying domain driven design, microservices and event-driven architecture principles.

    • Built a cutting-edge image embeddings-based search recommendation system powering Ricardo AI, a major innovation launched in 2024, that significantly enhanced user engagement and product discovery on the platform.

    • Developing SEO-focused initiatives (such as dynamic sitemaps generation, internal tools for SEO content curation) to enhance organic traffic and improve search engine rankings, in close collaboration with the SEO team.

    • Implementing and running Apache Beam pipelines on GCP Dataflow for large-scale data processing (e.g. Kafka events ingestion and aggregation).
    Java Spring Boot PostgreSQL Apache Kafka Redis GO
  • Amadeus
    Senior Backend Engineer Java
    SOFTWARE PUBLISHING
    December 2014 - October 2022 (7 years and 10 months)
    Nice, France
    • Designed, developed and maintained mission-critical systems for Qantas, the largest airline in Australia, within an agile multi-region DevOps-driven team.

    • Delivered scalable and high-performance decision support systems optimizing flight scheduling and disruption recovery, boosting operational efficiency and enhancing customer experience.

    • Handled responsibilities including requirements clarification with Business stakeholders, mentoring and ramping-up new-comers, promoting best practices within the team, production loads, stability and performance monitoring, data analytics and technical documentation.

    • Provided a recognized technical Subject Matter Expertise (SME) in data interfaces (read-write integration with Qantas information systems), business rules and decision support engines, automated load and performance tests as well as data analytics pipelines.
    Java Scala Couchbase Amazon Web Services Spark

Recommendations

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • MSc. in Engineering
    ENSTA Paris
    2014
    Optimization and Operations Research

Skill set

Categories