Freelancer profile translated to English.
Back to original languageAbout Miguel
Software engineer from Tours with 20 years of experience, I confirmed my role as Tech Lead during a 6-year adventure as Team Lead in a health startup, starting in 2014, where I designed the architecture, recruited and led a team of 3 to 10 developers, and delivered a solution used by over 6,400 patients in two hospital units.
I design robust and scalable distributed systems using the Scala functional ecosystem (Fs2, Cats Effect, Http4s, Doobie): complex business services, event stream integration and processing (Kafka), data storage and querying (PostgreSQL, Elasticsearch, Redis), API exposure. This dual mastery of backend and data streams allows me to intervene effectively on data engineering issues, particularly in designing reliable pipelines and managing large-scale data consistency. I have worked in demanding fields in this regard — cryptocurrencies (Ledger), international logistics (Geodis), PCI-certified payment (Ingenico), and IT security (TheHive).
Beyond code, I bring a culture of quality: rigorous code reviews, pair programming, technical mentoring, and supporting teams in adopting functional practices.
English
Fluent
French
Native or bilingual
Can work on-site
Tours (up to 10km), Paris (up to 10km)
Experience
- StrangeBee/TheHiveBackend DeveloperSOFTWARE PUBLISHINGJuly 2025 - April 2026 (9 months)Paris, FranceContribution to the development of TheHive 5 – Collaborative Security Incident Management Platform (SOC, CERT, CSIRT)
- Product maintenance and improvement: Bug fixing and optimization of existing features to ensure platform stability and performance
- Collaboration with the product team: Active participation in development cycles, testing, code reviews, and deployment of enhancements
- Development of new features
- Geodis/DigitalFactoryBackend DeveloperLOGISTICS AND SUPPLY CHAINJanuary 2023 - June 2025 (2 years and 5 months)Levallois-Perret, FranceWithin a team dedicated to modernizing Geodis' sales tools (digital factory), I participated in the development of software for establishing prices for maritime and air freight transport of goods between two locations worldwide. This tool relies on the carrier price repository API maintained by the same team.I participated in the product development until its launch-ready version. Here are some of the features developed:
- Mapping the file containing all cargo routing requests with their constraints
- Segmentation of each customer request into segments assigned to the sales teams responsible for the relevant regions
- Pricing automation: automatic retrieval of valid prices for the period from the Geodis repository to establish an initial quote
- Verification of the validity of each commercial proposal
After an initial testing phase, technical adjustments were made:- Optimization of costly SQL queries in both systems
- - Identification of queries eligible for optimization
- - Execution plan analysis
- - Rewriting
- Control of price flow to maintain acceptable working conditions
- Ingenico/SoftposBackend DeveloperAugust 2022 - September 2023 (1 year and 1 month)I joined the Ingenico Softpos team, which consists of 10 people. This team's role is to build an Android SDK certified PCI Contactless Payments on COTS – CPoC. The solution secures customer payment information from a merchant Android application to their acquirer. A set of backend services ensures the confidentiality and integrity of information during payment.I represented the backend Softpos solution referent. I handled the development of the backend services necessary for the solution's deployment.
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Education
- Engineer's degreePolytech'Tours2005
Certifications
- Sun Certified Programmer for the Java 2 Platform 1.4Sun