Joel Abdulai Kallon
Joel Abdulai Kallon – Founder & CEO
Joel Abdulai Kallon is the Founder and CEO of Meraki Analytics. He holds a Master of Science (With Commendation) in Data Science from the University of Aberdeen and a Bachelor of Engineering (with honors) from the University of Sierra Leone. Joel is skilled in several programming languages including Wolfram, Python, R and SQL, and has considerable experience and deep expertise in research design and data collection, advanced data analysis, statistical modelling, and machine learning. He has built a career at the intersection of technology, governance, and development.
From 2016 to 2021, Joel served as Data and Communications Manager at the Institute for Governance Reform (IGR), a local think-tank in Sierra Leone working to bridge the gap between knowledge and policy. At IGR, he specialized in research design and data analysis, contributing to several prominent publications including an analysis of Sierra Leone’s 2018 electioneering process titled Deepening Democracy in Sierra Leone (2018). At the height of the 2018 elections campaign, he was responsible for the publication of a Policy Brief on Asset Declaration (2017), which helped to propel a national conversation on the need for political aspirants to declare their assets before taking up office.
Joel was also very influential in the development of Sierra Leone’s first-ever Citizen’s Manifesto, which established nationwide the citizenry’s concerns and demands going into the 2018 elections. At IGR, he also led fieldwork and data management for the Afrobarometer Round 8 and Round 9 data collection activities in Sierra Leone, and oversaw the Bio-Meter project – an online tool that tracked the campaign promises of President Julius Maada Bio in his first term in office.
He has led the design and deployment of robust digital data collection systems across Sierra Leone and several other countries including Guinea, Pakistan, Bangladesh, Myanmar, Mozambique, Nepal, Malawi, Rwanda, and Uganda. A dynamic team leader, Joel often spearheads innovative digital training, data visualization tools, and platforms that empower non-technical users with critical insights. His work has supported initiatives on literacy and numeracy development, climate resilience, digital literacy, sexual and reproductive health, and international security.
Joel demonstrates considerable passion for youth empowerment, readily showing up to address community challenges. Through Chozen Generation, an organization he founded and led from 2013 to 2021, he created a platform where young Sierra Leoneans can meaningfully engage their leaders on issues and policies that are most important to them. The organization promotes youth leadership and organizes an annual national debating championship for girls to raise awareness on gender equality issues. His national influence as a young leader was also further expressed in regular engagements with leaders of government. In 2018, for instance, he led a delegation of youth leaders to the Commissioner, National Youth Commission to discuss a range of youth issues. After the launch of the government’s free education initiative, he also engaged the Ministry of Basic and Senior Secondary Education in a meeting with the Deputy Minister on key, youth-focused recommendations on making the free education work.
Joel attended the prestigious Albert Academy School from 2002 to 2008, where he achieved the best result in the 2005 Basic Education Certificate Examination. In 2015, he graduated from Fourah Bay College, University of Sierra Leone, receiving the University Award for best student in Mechanical and Maintenance Engineering. He recently completed a Master of Science in Data from the University of Aberdeen in the UK. When he is not building data processing pipelines or helping businesses make more sense of their data, Joel enjoys reading, writing inspirational blogs, eating with colleagues at the office, and giving those around him funny pet names.
Harry Henry Kargbo
Harry Henry Kargbo – Field/Data Manager
Harry Henry Kargbo is the Field/Data Manager at Meraki Analytics, bringing almost a decade of experience in operations, research coordination, finance, and data management. He holds a degree in Economics and a certificate in Population and Social Statistics from Fourah Bay College, University of Sierra Leone. Staying current with the evolving data landscape, Harry has also completed multiple online courses on platforms such as Udemy and Coursera, sharpening his skills in modern data-related tools.
Harry has contributed to numerous large-scale studies in financial inclusion, health, social impact, and education. His consulting work includes serving as Data Lead for the Ministry of Finance’s Financial Inclusion Study and informal sector research, as well as Technical Research Lead for Data Mansah on the Unemployment Study. He has also supported hospital informatics as a day crew member with Mercy Ships.
His expertise spans the design and implementation of digital data systems, survey instrument development, team training, and data analysis to support evidence-based decision-making. At Meraki Analytics, Harry plays a pivotal role in research projects—coordinating enumerators in the field, conducting training, and managing and cleaning data. He has been instrumental in delivering actionable insights for organizations such as Marie Stopes, the International Security and Development Center (ISDC), Invest Salone, and Global School Leaders.
Having participated in many field studies, both as an enumerator and a supervisor, Harry has seen firsthand how poor data can lead to ineffective projects. This experience fuels his passion for using insights from data to drive social impact and sustainable development. Guided by a mantra of excellence and diligence, he is committed to improving the lives of underprivileged communities and helping organizations design data-driven strategies for lasting impact.
Beyond his professional role, Harry serves as the National Coordinator for Chozen Generation Sierra Leone, where he mentors young people and guides them to live purposeful lives grounded in strong moral values. Outside of work, he is a proud Arsenal supporter and a passionate dancer.
Sorie Alfred Dumbuya
Sorie Alfred Dumbuya – Finance/Administrative Manager
Sorie Alfred Dumbuya is the Finance and Administrative Manager at Meraki Analytics, where he finds strong motivation in collaborative, data-driven development work. His role reflects his commitment to leveraging data science and research to drive impactful change across sectors. With over 20 years of practical experience in finance, administration, and education, Sorie is proficient in applying the principles and practices of administration and management, including accounting, auditing, and personnel management.
He holds a MSc in Educational Leadership and Management, a BSc (Hons) in Financial Services and a Postgraduate Diploma (PGD) in Education and Statistics from the University of Sierra Leone. Additionally, he earned a Certificate in Guidance and Counselling from DISCET Sierra Leone, strengthening his capacity to mentor and support individuals both academically and professionally.
Sorie began his career as a teacher at the Albert Academy Senior Secondary School in 2004, later becoming Head of the Mathematics Department in 2018. During his two decades at the school, he was instrumental in improving academic performance, discipline, and the teaching of mathematics, while mentoring both students and junior staff. His professional journey also includes serving as Back Operations Officer and Payments Officer at ProCredit Bank SL Ltd from 2008 to 2010, where he gained extensive experience in loan processing, banking operations, and stores management.
In 2020, Sorie joined the National COVID-19 Emergency Response Centre (NaCoVERC) as Budget and Finance Officer under the Psychosocial Pillar, contributing to financial planning, budgeting, and fund management to support the nation’s psychosocial response to the pandemic. He currently serves as the Director of Finance for the National Pentecostal Mission (NPM) Sierra Leone, ensuring financial transparency, accountability, and sustainability across the organization’s nationwide network of churches.
A long-serving educator and finance professional, Sorie is deeply passionate about youth development, institutional growth, and human development. His leadership has left a lasting impact on education, faith-based finance, and development research.
Beyond his professional commitments, Sorie is a family-oriented individual, married and a proud father of three sons. He enjoys sports—particularly football—and is an ardent supporter of Manchester United Football Club.
Tracy Jac-During
Tracy Jac-During – Communications Manager
Tracy Jac-During is the Communications Manager at Meraki Analytics, where she leads the firm’s strategic communications, digital storytelling, and public engagement efforts. A seasoned communications specialist with a degree in Mass Communication from Fourah Bay College, University of Sierra Leone, Tracy also holds multiple certifications from leading communications institutions.
Prior to joining Meraki, she served as Communications Manager at Farm to Table Sierra Leone, bringing over five years of experience in media strategy, development communications, and ethical digital engagement. Tracy is also a passionate digital rights advocate and certified Digital Security Trainer, with a focus on equipping women and youth to navigate online spaces safely.
Beyond her professional roles, Tracy is the founder of the Marigold Initiative and currently serves as Deputy National Coordinator of Chozen Generation Sierra Leone. She also leads the National Debating Championship for Girls, a flagship youth empowerment program. A YALI alumna and a strong advocate for youth development, Tracy blends technical fluency with strategic clarity to ensure that every campaign she touches is authentic, inclusive, and impact-driven.
When she is not shaping narratives or building digital safety capacity, Tracy can be found in the music scene, as a singer and songwriter with a deep passion for creative expression.
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Musa Mansaray
Musa Mansaray – Communications Officer
Musa Mansaray is the Communications Officer at Meraki Analytics, where he designs visual content for research reports, infographics, presentations, and digital media. His work focuses on turning complex research and data into clear and simple visuals that are easy to understand, helping the team share findings with partners, clients, and the public in a way that makes sense to them.
Musa holds a Diploma in Software, Hardware, and Networking. From 2014 to 2019, he lectured at Sulisha College of Management and Technology, teaching DOS and Microsoft Office, where he enjoyed helping students understand basic computer tools and how to use them effectively. From 2019 to 2023, he worked at Gibsart & Spancho Multimedia Ltd as the Deputy Manager, overseeing daily operations and leading design projects to ensure smooth workflow and timely delivery.
He joined Meraki Analytics in 2024, working closely with the research and communications team to create visual content that supports the organization’s work. He has contributed to several major projects, providing design and communication support that made research findings clear and engaging for diverse audiences. In these projects, Musa was responsible for designing research reports, infographics, presentations, and digital media, with a focus on making technical information accessible for decision-making. Some of the projects he has worked on include: ILRAJ – Women for Water and Peace Project, International Security and Development Center (ISDC) – Cross-Border Peace and Sustainable Livelihoods Project, Global School Leaders – Lead FLN Project, and Invest Salone – Cost of Instability Project.
Beyond his professional role, Musa has also been actively involved in youth leadership. From 2022 to 2023, he served as Deputy Welfare Coordinator for Chozen Generation Sierra Leone (CGSL), and from 2024 to 2025, he has served as Welfare Coordinator, supporting members’ well-being and engagement. CGSL is a youth-led organization that works on important issues affecting young people, promoting leadership and encouraging active participation in building stronger communities.
Outside of work, Musa enjoys watching educative movies and documentaries, spending time at home with his family, and exploring good food — especially trying new meals. He values simple moments that bring peace and joy and continues to look for opportunities to grow in the design field while using his skills to tell meaningful stories through visuals.
Malcom Isaac Kargbo
Malcom Isaac Kargbo – Administrative Officer
Malcom Isaac Kargbo is a dedicated administrative and data support professional with four years of experience in data collection across health, education, and governance sectors. He has contributed to multiple large-scale projects, ensuring efficient field logistics and the delivery of high-quality data.
Malcom has played key roles in initiatives such as the Marie Stopes Sierra Leone Client Exit Interviews (MSSL-CEI 2022–2023), VSO Disability Assessments for Schools (2023), and the EGMA and EGRA Endline Assessment – Radically Open Technology to Tackle the Learning Crisis (2024). He also served as Testing Lead for the Foundational Literacy and Numeracy (FLN) project, supporting evidence-informed strategies for school improvement in Sierra Leone. His governance-focused work includes supporting the Invest Salone study on the socioeconomic impacts of civil and political unrest, as well as the International Security and Development Center’s cross-border peacebuilding and sustainable livelihoods project for cattle herders and crop farmers in Sierra Leone and Guinea.
At Meraki Analytics, Malcom leads administrative coordination and supports data operations, including tool setup on Device Management, Kobo Toolbox, and SurveyCTO, data entry and management in MS Excel, and logistical planning for field activities. His technical skills span MS Excel, MS Word, ODK, Kobo Toolbox, and SurveyCTO. He is currently pursuing a Diploma in Business Administration.
Malcom believes data is a powerful driver of informed decision-making, problem-solving and social impact. He is passionate about innovation, personal growth, teamwork, and contributing to Sierra Leone’s national development.
Outside of work, Malcom enjoys exploring ways to enhance the country’s entertainment industry through event planning. He finds joy in spending time with friends and family, playing football and video games, and taking long drives for relaxation.
Haja Binta Bah
Haja Binta Bah – Research Assistant
Haja Binta Bah brings strength, care, and curiosity into every project she touches. As a Research Assistant at Meraki Analytics Limited, she plays a key role in turning data into meaningful insights that help improve health, education, and development outcomes across Sierra Leone.
Her journey began at St. Joseph’s Convent Secondary School, where she built a strong academic foundation and developed the discipline and determination that still guide her today. She later went on to earn an Honours degree in Chemistry from Fourah Bay College, University of Sierra Leone, blending scientific thinking with a growing passion for research.
Recently, she played a key role in the Global School Leaders (GSL) survey, where she supported back checks on enumerators to ensure that data collected in the field was complete and accurate. Her attention to detail and ability to spot inconsistencies helped strengthen the integrity of the overall findings.
Binta is continuously expanding her skills, especially in tools like Google Sheets, KoboToolbox, and Excel. She is also exploring more advanced areas like data visualization and impact evaluation. Her goal is to strengthen how evidence can inform better programs and smarter decisions in Sierra Leone and beyond.
What makes Binta stand out is her balance. She is quietly confident, always willing to learn, and never afraid to ask questions. She takes her work seriously but never loses her human touch. She believes that good data tells real stories about communities, challenges, and the opportunities to make things better — and that is what drives her.
Outside of the office, Binta is easy-going and fun to be around. She loves achekeh (do not ask her to share it!), enjoys learning new things online, and values her quiet time just as much as she enjoys meaningful conversations. She is not loud, but she is deeply thoughtful. She may not always be the first to speak, but when she does, her words carry weight and meaning.
At the core of it all, Binta simply wants to do good work that matters. She is not chasing titles; she is building trust, learning every day, and showing up with purpose. Whether it’s through data, teamwork, or quiet support in the background, she hopes her efforts help make things just a little better for her team, her community, and her country.