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Joana (C.) Moreira De Mello

Collaborator | Bioinformatics

Joana Moreira De Mello
Schiedam, Netherlands

Experience

Jan 2025 - Present
1 year 2 months

Collaborator | Bioinformatics

Project: DNA do Brasil

  • Perform large-scale genomics data processing to build a Brazilian population-specific reference genome.
  • Identify and annotate underrepresented variants and putative loss-of-function variants.
  • Collaborate with cross-functional teams of geneticists and computational biologists.
Jan 2022 - Dec 2024
3 years
Leiden, Netherlands

Data Scientist | Bioinformatics

Leyden Labs

  • Designed and maintained reproducible workflows for single-cell transcriptomics, viral genome analysis.
  • Built and optimized pipelines for viral genome analysis (alignment, variant calling, strain ID).
  • Integrated large public datasets into an atlas for target discovery, generating actionable visual insights for R&D leadership.
  • Delivered technical documentation, study reports, and visualizations for cross-functional teams.
Jan 2019 - Dec 2022
4 years
Rotterdam, Netherlands

Postdoctoral researcher | Bioinformatics

Erasmus MC

  • Developed and shared reproducible R Markdown workflows for karyotyping, allele-specific expression, and transcriptomics.
  • Processed and analyzed large-scale genomics and single-cell RNA-seq datasets for collaborative research projects.
  • Provided technical support on bioinformatics software, tools, and Next-Generation Sequencing (NGS) analysis.
  • Produced clear data visualizations and documentation to facilitate interdisciplinary communication.
Jan 2015 - Dec 2019
5 years
São Paulo, Brazil

Postdoctoral researcher | Genomics & Epigenomics

University of São Paulo

  • Investigated the epigenetic state of the X chromosome in pre-implantation embryos of humans and non-human primates using single-cell RNA-seq.
  • Improved pipelines for scRNA-seq QC, mapping, variant calling, and allele-specific gene expression analysis.
  • Troubleshot bioinformatics pipelines and optimized workflows.
  • Mentored graduate students in bioinformatics methods and experimental design.
  • Published key findings on X-chromosome inactivation and dosage compensation in top-tier journals.

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Education (8 years), Biotechnology (4 years), and Healthcare (4 years).

Education
Biotechnology
Healthcare

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Research and Development (11 years) and Business Intelligence (3 years).

Research and Development
Business Intelligence

Summary

Computational biologist with extensive experience in NGS data analysis, single-cell and bulk transcriptomics, and bioinformatics workflow development. Experienced in designing scalable and reproducible pipelines, integrating large-scale multi-omics datasets, and delivering clear visualizations for diverse research teams. Experienced in close collaboration with wet-lab scientists, bridging biology and computation, including data integration and visualization approaches. I enjoy multidisciplinary environments, the technical aspects of workflow development and data analysis, and am committed to teamwork, continuous learning, and applying my skills to advance science and improve human health.

Skills

  • Workflow Development & Reproducibility: Nextflow, Docker, Conda, Linux Hpc, Google Cloud.

  • Programming & Analysis: R (Tidyverse, Shiny, Rmarkdown), Python (Pandas, Matplotlib, Seaborn), Bash.

  • Ngs & Omics Data Analysis: Single-cell And Bulk Rna-seq, Wgs, Epigenomics, And Array Data.

  • Data Integration & Visualization: Multi-omics Harmonization, Biomarker Discovery, Interactive Visualizations, And Custom Reporting.

  • Data Integration & Biomarker Discovery: Public Dataset Curation, Harmonization, And Exploratory Analysis.

  • Collaboration & Reporting: Interactive Visualizations, Study Reports, And Cross-functional Teamwork.

  • Programming & Scripting: R, Bash, Shell, Python.

  • Ngs & Variant Analysis: Gatk, Bcftools, Vcftools, Vep, Loftee, Shapeit, Star, Bowtie2, Bwa, Varscan.

  • Transcriptomics & Single-cell: Seurat, Scanpy, Deseq2, Edger.

  • Workflow Development: Nextflow, Hpc, Google Cloud.

  • Containerization & Environments: Docker, Anaconda.

  • Data Visualization: Ggplot2, Plotly, Shiny, Matplotlib, Seaborn.

  • Continuous Learning: Always Learning New Tools To Expand My Capabilities.

Languages

Portuguese
Native
English
Advanced
Dutch
Elementary

Education

University of São Paulo

Master’s in Biological Sciences (Genetics) · Biological Sciences (Genetics) · São Paulo, Brazil

University of São Paulo

PhD in Biological Sciences (Genetics) · Biological Sciences (Genetics) · São Paulo, Brazil

University of São Paulo

Bachelor’s in Biological Sciences · Biological Sciences · São Paulo, Brazil

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Joana based?

Joana is based in Schiedam, Netherlands.

What languages does Joana speak?

Joana speaks the following languages: Portuguese (Native), English (Advanced), Dutch (Elementary).

How many years of experience does Joana have?

Joana has at least 11 years of experience. During this time, Joana has worked in at least 4 different roles and for 4 different companies. The average length of individual experience is 3 years and 9 months. Note that Joana may not have shared all experience and actually has more experience.

What roles would Joana be best suited for?

Based on recent experience, Joana would be well-suited for roles such as: Collaborator | Bioinformatics, Data Scientist | Bioinformatics, Postdoctoral researcher | Bioinformatics.

What is Joana's latest experience?

Joana's most recent position is Collaborator | Bioinformatics at Project: DNA do Brasil.

What companies has Joana worked for in recent years?

In recent years, Joana has worked for Project: DNA do Brasil, Leyden Labs, and Erasmus MC.

Which industries is Joana most experienced in?

Joana is most experienced in industries like Education, Biotechnology, and Healthcare.

Which business areas is Joana most experienced in?

Joana is most experienced in business areas like Research and Development (R&D) and Business Intelligence.

Which industries has Joana worked in recently?

Joana has recently worked in industries like Biotechnology, Education, and Healthcare.

Which business areas has Joana worked in recently?

Joana has recently worked in business areas like Research and Development (R&D) and Business Intelligence.

What is Joana's education?

Joana holds a Doctorate in Biological Sciences (Genetics) from University of São Paulo, a Master in Biological Sciences (Genetics) from University of São Paulo and a Bachelor in Biological Sciences from University of São Paulo.

What is the availability of Joana?

Joana is immediately available full-time for suitable projects.

What is the rate of Joana?

Joana's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Joana?

To hire Joana, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

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Market avg: 890-1050 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.