khaled hadjali

Python Backend Developer | DevOps

Salary / Daily rate

Paris, France

Freelance, open to permanent contract

Can come onsite

Skills

DjangoDevOpsPythonTest Driven DevelopmentReactpandasNodeRedisAzureMongoDBSQL databasesSQL QueriesDynamoDBPostmanOVHcloudPrometheusLinuxEvent Driven ArchitectureGoogle Cloud PlatformKubernetesGitSAP HANAClean CodeFirebaseDockerDigitalOceanSQLiteGraphQLGitHubPostgreSQLGitLabGrafanaRabbitMQ

Languages

Arabic (Native)English (Fluent)French (Fluent)German

About me

Intro

Python backend developer with 5+ years building scalable web applications and DevOps solutions. Expertise in FastAPI, Django, and cloud infrastructure with proven experience at major tech companies like Sagemcom. Specialized in microservices architecture, Kubernetes orchestration, and data pipeline optimization to deliver robust, high-performance backend systems.

Links

Work experience

Backend devops developer

NORMA

Jan 2021 - Present

5 years 10 months

69340 Francheville, France

Senior Backend & DevOps Engineer (Python, FastAPI, Django) Experienced in designing and delivering scalable backend platforms and distributed systems across delivery, fintech, trading, and B2B products. Strong background in backend architecture, microservices, real-time features, and cloud infrastructure (GCP, VPS, Kubernetes). Led end-to-end development of multiple products (Tawssil, Tradias, Livrili), building REST/gRPC APIs, real-time tracking, and event-driven microservices while managing complex data layers (PostgreSQL, Redis, DynamoDB, MongoDB). Hands-on DevOps expertise including CI/CD pipelines, containerization, monitoring (Prometheus/Grafana), and secure production deployments. Experienced Tech Lead and Product-oriented engineer: managed teams, defined architecture, optimized performance (up to 60% faster pipelines), onboarded developers, and collaborated closely with stakeholders to deliver reliable, scalable platforms.

Senior Software Engineer – Big Data Platform

AmadeusFreelance

Mar 2025 - Mar 2026

1 year 1 month

Remote

Contributed to the Data Mesh ingestion framework, implementing and enhancing metadata-generator and file-dispatcher components (container lifecycle, routing logic, zone-aware compliance across Red/Green/Orange). Designed and optimized anonymization and Data Quality pipelines on Databricks (Spark/Scala), improving execution parallelism, container-level isolation, and operational reliability. Optimized integration tests for Mesh ingestion, significantly reducing execution time while preserving full end-to-end validation of real ingestion flows (dispatcher → storage → DQ). Automated CI/CD workflows using Azure DevOps Pipelines (TST/PRD separation, config rendering, validation gates, controlled deployments). Provisioned and managed Flexify and Mesh infrastructure via Bicep, ensuring reproducible, secure, and environment-specific infrastructure as code. Strengthened governance, observability, and compliance across Azure Data Lake (ADLS Gen2) with structured configuration and monitoring integration (Prometheus / Deequ). Tools: Python, Scala, Spark, Databricks, Azure (ADLS Gen2, Event Grid, Key Vault), Bicep, Azure DevOps, Deequ, Pushgateway, Prometheus, Grafana.

Python Developer

Sagemcom

May 2020 - Dec 2020

8 months

Mégrine, Tunisia

SAGEMCOM production management follow-up and monitoring application with its customers Within an Agile Kanban team of 8 people (1 ScM, 1 team lead, 6 developers): Tasks : Exchanges with the industry team to qualify needs Responsible for the Virtualization of the development and test environment Write dags on airflow . Wrote unit tests on the Apache airflow framework Preparation of a development and production environment with docker Fixed bugs in a production monitoring system Analysis and optimization of code quality and execution time Creation of a web service using FastAPI Tools :Python, Docker, Git, SVN, Postgres, FastAPI, apache airflow, virtualization

Python / django Developer

Neopolis Development

Mar 2019 - May 2020

1 year 3 months

Remote

Development of insurance web applications that solve several problems in the insurance field and integration of a REST API architecture layer by communicating with 3 external software applications. ● Participation in front and back-end development ● Compliance with best development practices: unit testing, code coverage rate, etc. ● Ensure TDD best practice ● Creation of web services for communications with third parties (banks, brokerage firms and insurers)


Education

institut superieur informatique et multimedia

Licence

2014 - 2017

4 years

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