Meet Our Team

Meet our team

Headshot_Vanessa Da Costa

Vanessa Da Costa, MPH

CEO& Lead Data Consultant, Strategy & Operations

Vanessa is a Data Analysis Advisor at the U.S. Agency for International Development (USAID) Global Health with over 9 years of experience in data collection, management, analytics, and visualization. She is the Founder and CEO of Chilombo Global Career Services LLC, the parent company of Chilombo Consulting. She holds a Master of Public Health (MPH) Degree in Global Epidemiology from Emory University and a Bachelor’s Degree in Psychology from The University of North Carolina at Chapel Hill. Vanessa loves streamlining data processes and connecting the dots between data, project management, and programmatic communications.


Asya Spears, MS, Doctoral Candidate

Advisory Data Consultant

Asya is a Biostatistician and STEM Education Advocate with over 9 years of experience in health services research, population health analytics, and data storytelling. She holds a Master of Science Degree in Biostatistics from the University of California, Los Angeles and a Bachelor’s Degree in Mathematics from Spelman College. Known as the Chief Encouraging Officer of data, Asya's love for numbers is derived from a childhood passion for math turned into a desire to democratize data access and analysis.

We are hiring!

-1099 Contractor/U.S. Citizen
-Available up to 20 hours/month
-Required: Advanced R and/or Python Skills: Inferential Statistics. Statistical Modeling (i.e. Predictive Modeling), Research background
-Preferred: PhD in Statistics or Biostatistics
-Public Health knowledge & data visualization skills in Tableau or Excel a plus

*Check back May 15th, 2022 for the full job description and application*

Chauna's Headshot

Chauna Gibson, MPH

Data Consultant, Business & Analytics

Chauna is a Data Analyst at the Centers for Disease Control and Prevention (CDC) with over 5 years of experience in data analytics, management and visualization. She holds a Master of Public Health (MPH) Degree in Global Health and Program Management from Boston University and a Bachelor's Degree in International Studies from the University of Michigan. Chauna is interested in how data analysis can be used to improve programs, influence policy and address health disparities among the most vulnerable members of the community.


Brittney Mengistu, PhD, CHES

Lead Qualitative Research Consultant

Brittney is a Global Health researcher and lecturer with 7 years of experience in qualitative research, monitoring, and evaluation. She received her PhD from the Global Health and Social Medicine Department at King's College London and holds a Master of Public Health (MPH) degree in Behavioral Health and Health Education from Emory University. Brittney enjoys engaging stakeholders in participatory research and evaluation practices to uncover new and innovative approaches to achieving health equity.


Chioma Nnaji, MPH, MEd

Qualitative Research Consultant

Chioma is a Qualitative researcher, a community health worker, trainer, and organizer with more than 20 years in the fields of HIV/AIDS, sexual health, equity, racial justice, and immigrant health. She is well-versed in consulting on community health and needs assessments, anti-racism frameworks for organizations and coalition development. She's extremely passionate about working with BIPOC and LGBTQ communities to address health inequity, as well as racial and social injustice. Chioma holds a Master of Public Health (MPH) degree from Boston University and a Master of Education (MEd) degree from Boston College.

Chilombo Consulting


The views and opinions expressed by Chilombo Global Career Services, LLC on all platforms are those of the owner and do not reflect the views of her employer or the U.S. Government.

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