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David AiraultDA

David Airault

Bioinformatician

€550/day
Nantes, FR
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About David

Do you have NGS sequencing data and need actionable results, not just a raw table? That's precisely what I do.
As a bioinformatician specializing in microbiology, I analyze raw sequencing data to extract directly usable information: characterization of microbial communities, detection of genes of interest (biocide/antibiotic resistance, virulence), and validation of PCR/qPCR primers in silico.
Over 7 years of industrial projects at bioMérieux and Lesaffre, I have developed and maintained Nextflow and Snakemake pipelines in production, addressing real-world challenges in agri-food, health, and the environment. I can work directly on raw reads (without prior assembly), a faster approach suitable for complex or non-culturable samples.
My deliverables are annotated and interpreted reports, usable by teams without bioinformatics expertise.

Fully available for missions in English. Previous experience in international R&D environments (bioMérieux, Lesaffre). Expertise in NGS-based microbial analysis, targeted genetic marker detection on raw reads, and in silico PCR primer design.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Nantes (up to 50km)

Experience

  • ACP Detection
    Bioinformatician
    January 2026 - Today (5 months)
    Creation and development of a bioinformatics service activity specializing in applied microbiology and molecular detection.

    -Development of a proprietary pipeline for detecting microbial genes on raw reads, without assembly.
    -Design of specific PCR/qPCR primers.
    Bioinformatics Food microbiology Biology
  • Soladis
    Bioinformatician
    September 2019 - December 2024 (5 years and 3 months)
    Location in Lyon in 2019 and 2020, then remotely in Nantes.
    Five years of bioinformatics service missions, primarily at bioMérieux (in vitro diagnostics) and Lesaffre (biotechnology).

    At bioMérieux Clinical Studies: Automated retrieval of bacterial sequences from NCBI (e-utilities), integration and quality control into a reference typing database (EpiSeq) with evaluation of incoming sequence divergence and recalibration of classification thresholds.

    On internal Soladis assignment: responding to ad-hoc client needs: PCR primer design, protein quantification, custom bioinformatics analyses.

    At bioMérieux Augmented Diagnostic (~3.5 years): development of a complete pipeline for bacterial genome assembly and characterization from raw Illumina reads. The pipeline produced variant profiles and pathogenic strain typings (via BioNumerics allele calling) used as input data for a machine learning model aiming to identify minimal molecular markers for PCR detection of pathogenic bacteria (GenUP Tracker project, bioMérieux). Nextflow/Snakemake development, BitBucket management, AWS deployment, code industrialization, and bioinformatics support for other teams.

    At Lesaffre: construction of a proprietary yeast pangenome and integration of variant calling for characterization of the core genome vs. accessory genome.
  • SeqOne
    Bioinformatician
    BIOTECH
    January 2025 - August 2025 (7 months)
    Nantes, France
    Joined the Bioscience team for the development and maintenance of new features on the SeqOne platform (clinical NGS analysis). Development of Nextflow pipelines, interactions with the platform's API.

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Education

  • Master of Bioinformatics Engineering
    University of Nantes
    2019
    Master Ingénierie Bioinformatique
  • Bachelor's degree in Cell and Molecular Biology
    University of Angers
    2017
    Licence BCMP, Biologie cellulaire et moléculaire

Skill set

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