CO-OP ev · Back-end architect & developer
Jan 2026 → Oct 2026 · 10 mosDesigned and built the company's entire back end from scratch in Django: data model, API, architecture and the technical foundations.
Stack: Django, Python 3, PostgreSQL
Vivien Giraud
Freelance Python back-end developer · Django · FastAPI · AWS
freelance@viviengiraud.fr · +33 6 21 43 30 87 · pythonfreelance.fr · linkedin.com/in/viviengiraud
Limoges, France · Fully remote from Limoges, France
● Available from November 2026
Profile
Senior Python back-end developer (15 years), freelance since 2021 for scale-ups and large groups: Django, FastAPI, Flask, AWS. Former startup founder (API, infrastructure, payments, CI/CD from scratch) and embedded systems engineer. Fully remote from Limoges, France; fluent English (C1).
Skills
- Back end
- Python 3 (3.9 → 3.13) · Django · Django REST Framework · FastAPI · Flask · gRPC · REST · GraphQL · TDD / pytest
- Cloud & infra
- AWS (EC2, S3, RDS, Lambda, VPC) · Terraform · GCP · Docker · CI/CD (Bitbucket Pipelines) · Linux
- Data & AI
- PostgreSQL · SQL · Machine learning · LLM pipelines · Speech-to-text / text-to-speech
- Integrations
- Stripe · Braze · SAP · Shopify · PayPal · Amadeus · Duffel · Distribusion
- Embedded & security
- C · ARM (assembly) · GDB / OpenOCD · QEMU · SmartCard · Vulnerability research
Freelance experience 11 missions · 2021–2026
Karos Mobility · Back-end developer
Aug 2025 → Nov 2025 · 4 mosMigrated the engagement platform to Braze and audited the existing code base of the commuter carpooling app.
Stack: Python, Braze
Syrocco · Back-end developer
Jun 2025 → Jul 2025 · 2 mosUpgraded projects from Python 3.9 / 3.10 to Python 3.13, reviewed and optimised code and development processes.
Stack: Python 3.13
Back Market · Back-end developer
Jan 2025 → Mar 2025 · 3 mosPython back-end development within the engineering teams of the refurbished products marketplace.
Stack: Python
Coty · Back-end developer
Jun 2024 → Nov 2024 · 6 mosBuilt a tool that automatically reconciles Shopify and PayPal payments into SAP.
Stack: Python, Shopify API, PayPal API, SAP
L'Oréal · Back-end developer
Aug 2023 → May 2024 · 10 mosBuilt Cloud Sustainability tooling: measuring and tracking the environmental footprint of the group's cloud resources.
Stack: Python, Cloud APIs
Edailabs · Back-end engineer
Jan 2024 → Feb 2024 · 2 mosBack end for a voice AI chatbot serving an iOS app: streamed audio in, speech-to-text, LLM query, then streamed text-to-speech out. Latency brought down to ~100 ms with gRPC.
Stack: FastAPI, gRPC, LLM, STT / TTS
Powens · Senior lead developer
Nov 2022 → Jun 2023 · 8 mosRe-architected the monolithic API into FastAPI microservices for the open banking platform.
Stack: FastAPI, Microservices, Python
WeeFin · Back-end developer
Aug 2022 → Nov 2022 · 4 mosNew features in pure Python for ESG Connect, the ESG data platform.
Stack: Python
Alma · Back-end developer · International squad
Apr 2022 → Jun 2022 · 3 mosIn the I18N squad: features enabling the fast roll-out of new countries for the instalment payment solution.
Stack: Python
Saint-Gobain Glass France · Back-end developer
Sep 2021 → Feb 2022 · 6 mosNew features for the glass coater on the existing Django back end.
Stack: Django, Python
Entrepreneurship 2016–2022
Tridea · Founder & CEO · back-end developer and architect
Sep 2017 → Apr 2022 · 4 yrs 8 mosOnline travel agency specialised in self-connecting flights (virtual interlining). Built from scratch: Flask then Django REST Framework API, Bitbucket CI/CD pipeline, Stripe payments, AWS infrastructure, transport supplier integrations (Amadeus, Distribusion, Save A Train, Duffel). Featured on Europe 1 radio.
Stack: Flask, Django REST Framework, AWS, Stripe, CI/CD
Web To Store · Founder · back-end developer and architect
Nov 2020 → Apr 2022 · 1 yr 6 mosSaaS launched within Tridea letting any shop set up a Click & Collect store in under 15 minutes.
Stack: Django, AWS, Stripe
Streem · Self-employed founder
Feb 2016 → Aug 2017 · 1 yr 7 mosJukebox 4.0: a new way for a venue's customers to interact with its playlist.
Stack: Python
Embedded & security 2011–2016
INSIDE Secure · Field Application Engineer, previously Solution Delivery Engineer
Pre-sales and support for MatrixSSE (software protection) and MatrixHCE (mobile payment). Security study of the D-Link DCS-2310L camera for Black Hat 2015: two critical vulnerabilities found (unauthenticated video stream access, clear-text credentials).
NEOTION · Embedded systems developer
Fork of GDB + OpenOCD to build a debugging system for in-house processors. SmartCard reader designed from scratch and integrated into the QEMU emulator. C, Python, ARM assembly, USB, FTDI, AVR32.
Teaching
Lecturer at engineering schools: TDD, Python, Django, Flask, FastAPI, object-oriented programming.
Side projects
123Hector 123hector.com — SaaS that reads, sorts and answers Google, Tripadvisor and Yelp reviews for hotels, restaurants, campsites and tourist attractions: every review read, every reply written in the venue's own voice, neighbours compared, and what to fix this week.
RappelRadar rappelradar.fr (archived) — Alerts you as soon as a consumer recall affects a product you bought.
PromoPeers promopeers.com (archived) — Let influencers share affiliate links and promo codes, and their followers find the best deals.
Education
- Master's degree in real-time and embedded systems
Ingésup (Y-Nov Aix-en-Provence) · 2011–2014 - Two-year technical degree in business computing (BTS)
Beaupeyrat, Limoges · 2009–2011
Certifications
- AWS Certified Cloud Practitioner · Amazon Web Services
- C1 Advanced · Cambridge English
Languages
- French · native
- English · full professional (C1)
- Spanish · limited working
- Hungarian · elementary
- Chinese · elementary