Freelancer profile translated to English.

Description

Backend Developerspecialized inPython/Django/DRF**, with a strong **DevOpsculture and solidAWSexperience.

I help product/SaaS teamsdeliver fastwithout compromisingquality**, while **improving system scalabilityand **reliability**: clear architecture, code review, testing, CI/CD, monitoring.

*Backend Expertise**: **Python**Django/DRF, PostgreSQL**, Redis,Celery.

*Cloud/Ops**: **AWS(Lambda, IAM, EC2, ECR…), **Kubernetes**, **Terraform, Docker**, CI/CD pipelines (CircleCI, GitLab, GitHub, ...).

*Bonus**: Recent exposure to **Cyber Threat Intelligence via OpenCTI(connectors, API integrations, data normalization to **STIX2.1**)

Available forLead / Backendmissions: scoping, delivery, mentoring, refactoring, scalability, and production backend stabilization.

Industry field of expertise

Languages

French
Native or bilingual
English
Native or bilingual

Workplace preferences

Remote only

Primarily works remotely

Freelance
Senior Software Engineer
TECH
January 2026 - Today (7 months)
Aix-en-Provence, France
I intervene as a reinforcement or lead onPython backendswithscalabilityandreliabilitychallenges.

**Audit & Action Plan**: architecture, technical debt, CI/CD, observability, performance, application security (pragmatic).
**Delivery**: APIs, targeted refactoring, migration, third-party API integrations, industrialization (tests, review, standards).
**Production Stabilization**: monitoring/alerting, incident reduction, resilience (timeouts/retries/idempotence), DB/cache optimization.
Python Django AWS PostgreSQL OpenCTI
Filigran
Senior Software Engineer (Remote)
TECH
March 2025 - December 2025 (9 months)
Paris, France
Python Backendwithin the Integration team aroundOpenCTI**, with a focus on **API integrationand their **scalability/reliability**.

Design, refactoring, and maintenance of 15+OpenCTI connectorsfor TI API integrations, normalization, and data transformation toSTIX 2.1(CrowdStrike, Recorded Future, Microsoft Sentinel/Defender TI, Wiz, Shodan, Flashpoint, ...)
Implementation of pipelines (retries, idempotence, timeouts) + improvement of production reliability (logs, alerting, run).
Reinforcement ofCI/CD(tests, linting, packaging/release), reduction of regression risk, and acceleration of deployments.
Contributions to the common **connector SDK**: implementation of reusable patterns (configuration, validation, error handling) to standardize development and accelerate delivery.

Technologies:Python, Docker, OpenCTI, STIX2.1, TAXII, Microsoft Graph API
OpenCTI CTI Python STIX Microsoft Graph API
Pricemoov
Lead Software Engineer (Remote)
TECH
June 2022 - February 2025 (2 years and 8 months)
Paris, France
Tech Leadon a pricingSaaSsolution, responsible for the core application team (pricing calculation engine), with a focus on scalability, performance, and production reliability.

*Technical Leadof the team in charge of the pricing calculation engine: scoping, architecture, decision-making, technical prioritization, code review, and mentoring (improving quality and autonomy levels).
**Scaling**: structuring asynchronous processing (Celery/queues) + resilience patterns (retries, timeouts, idempotence) to handle peaks and secure execution.
**Performance Improvement**: PostgreSQL optimization (queries/indexes/transactions) + Redis (caching) to reduce bottlenecks and stabilize latency.
**Process**: monitoring/alerting, incident analysis, hardening workflows, and reducing production regressions.
**Delivery**: strengthening tests + CI/CD, controlled deployments, standardizing practices (quality, release, runbook) to deliver fast without compromising quality.

**Technologies**: Python, Django, DRF, PostgreSQL, Redis, Celery/queues, AWS, Docker, CI/CD, observability/monitoring.
AWS Python Django PostgreSQL DevOps