WOWael ObaidData & AI Systems Expert
HomeAboutServicesPortfolioBlogContact
Book a call
HomeAboutServicesPortfolioBlogContact
Book a call

Wael Obaid

Data science and information technology specialist focused on statistical analysis, secure information systems, GIS, dashboards, and field-ready reporting workflows.

HomeAboutServicesPortfolioBlogContact

© 2026 Wael Obaid. All rights reserved.

Built for clarity, credibility, and evidence-based decisions.

Portfolio

Data systems built for real-world decisions.

Selected work across health reporting, Dashboards & BI, GIS, operational analytics, and multi-country information systems.

All projects shown here are my work, but this is a selected portfolio, not a complete archive of every project I have delivered.

10+

Years experience

8+

Countries & contexts

Cross-sector

Data systems

Dashboards & BI

Reports & insights

AI-Assisted Data Quality Platform

NexaData AI Data Quality Platform

Real-time data quality, validation, and error detection

Role: Founder & Data Systems Engineer

NexaDataAIData qualitySaaSValidation engine

Stack

AI-assisted analyticsData quality engineRule builderSaaS productError detection

Founded and engineered NexaData as a web-based data quality platform that helps teams upload CSV, Excel, JSON, or XML datasets and immediately understand their reliability. The platform combines quality scoring, AI-assisted summaries, automated issue detection, suggested fixes, rule discovery, and report-ready views in one workflow.

Impact

Built a product workflow that moves users from dataset upload to quality score, visible issues, error table, auto-detected rules, rule builder, unique-value checks, AI summary, and actionable improvement recommendations.

AI-assisted dataset quality scoring
Automated issue detection and suggested fixes
Error table with review and confirmation states
Auto-detected validation rules
Custom rule builder and unique-value checks
AI-generated quality summary and improvement guidance

79.3/100

Quality score

42

Visible issues

16

Columns checked

NEXA

DATA

Data Quality Platform

Final ScoreError TableAuto-Detected RulesRule BuilderAI Summary

Final score

79.3

Good data quality

79.3 / 100

42

Issues

16

Columns

12.5%

Issue rate

100%

Complete

89.4

Validity

98.7

Consistent

Good dataset health

The dataset is generally healthy, with issues mainly related to consistency, standardization, and validation.

Detected issue types

Missing values24
Format mismatch12
Duplicate rows7

AI improvement opportunity

Resolve inconsistent values first to improve comparisons across reports.

Wrong valueSuggested fixConfidenceIssue type
5000 SAR5000ConfirmedData corruption
lat: 95 / lon: 43-ReviewLat Lon swap

Detected Rules

AddEditRemove

State category standardization

Yes 2x->True
No 1x->False
Visit NexaData

Measured indicators

Dataset intake

Supports structured upload and analysis flows for CSV, Excel, JSON, and XML files, with dataset context shown before the user starts validation.

Quality scoring

Calculates an overall dataset health score with visible issue counts, issue rate, column risk, and improvement signals that make quality status easy to interpret.

Error table

Shows row-level and column-level problems such as missing values, format mismatch, duplicate rows, corrupted values, and coordinate issues, with suggested fixes and confidence states.

Auto-detected rules

Detects candidate validation rules from the dataset, compares wrong and current values, proposes normalized fixes, and lets users add, edit, or remove rules.

Rule builder

Gives users a controlled way to define custom validation and uniqueness checks, turning recurring data problems into reusable quality rules.

AI summary

Produces human-readable explanations of dataset health, main issue patterns, and the top improvement opportunity for better reporting consistency.

Epidemiological Analytics

COVID-19 COMO Model Interactive Report

Outbreak response planning

Role: Data Analyst

COVID-19COMO modelPower BIResponse planning

Stack

Power BICOMO modelEpidemiological modelingNeeds analysis

Built an interactive Power BI report based on the COMO epidemiological model, designed to simulate COVID-19 spread and translate model outputs into response planning views.

Impact

Helped stakeholders explore projected transmission, estimate operational needs, and compare response scenarios through a structured analytical dashboard.

Interactive epidemiological dashboard
COVID-19 spread simulation views
Needs and response planning outputs

The public report presents model-based and aggregate planning views rather than identifiable patient-level data.

COVID-19

Disease model

Scenarios

Response planning

Interactive

Decision report

COMO model

COVID-19 Transmission Simulation

spread, needs, and response scenarios

model output

Response Readiness

COVID-19

Projected cases by scenario

Baseline2.4K
Moderate response1.6K
High pressure4.8K

Estimated need

Beds68%
Oxygen54%
Staff71%
TransmissionCapacityResponse
View Power BI report
Consulting

Advisory for International & Regional Partners

Strategic advisory

ConsultingAdvisoryRegional partners

Provided consulting and analytical support through regional and international partnerships across health systems, data workflows, dashboards, interactive studies, and reporting systems.

Impact

Supported projects connected to AFD-funded work, GIZ-linked initiatives, QRC, IRVD, TRUST, Smart Way, Hayat Disk, LTC UK, and regional consulting contexts.

Data workflow advisory
Interactive reporting consultation
Operational analytics support

Consulting

Partner Advisory & Analytics Desk

strategic guidance for data workflows, studies, and dashboards

Advisory pipeline

Diagnose

Model

Advise

Analytics

Interactive Reports

AI Insights

AFD-fundedGIZ-linkedQRCIRVDTRUSTSmart WayHayat DiskLTC UK

Data

Workflow audit

Reports

BI consultation

Support

Operational analytics

Decision support loop

AssessDesignReportImprove
Statistical Data Analysis Tool

Sigma Quality

Desktop data quality auditing and statistical validation

Role: Programmer

Sigma QualityStatistical analysisData qualityDesktop applicationOutlier detection

Stack

Desktop applicationData quality rulesStatistical validationDatabase import

Programmed Sigma Quality as a desktop application for practical data quality auditing. The tool imports database tables, evaluates each variable, and produces a structured quality matrix covering records, missing values, completeness, uniqueness, timeliness, suspicious values, outliers, external checks, and detailed variable-level review.

Impact

Enabled analysts and reporting teams to review data quality at table and variable level, detect outliers and suspicious values, correct values, and export or import quality reports through a clear desktop workflow.

Desktop data quality auditing application
Database and table selection workflow
Completeness, uniqueness, and timeliness checks
Suspicious value and outlier detection
Quality report import and export workflow

99.992%

Final quality

100%

Completeness

26

Variables checked

Sigma Quality

Desktop Data Quality Checker

Import DatabaseCheck QualityShow OutliersCorrect Values

Select Tables

Database
Sheet1
Casualties
TimeLine
Questionnaire
Database_Ar
TimelinessCheck Quality
clear tablesave reportimport report
VariableTypeRecords%Complete%UniqueOutliersExternal
Longitudedecimal12100.00%100.00%00
Latitudedecimal12100.00%100.00%00
Governoratestring12100.00%25.00%00
Individualsint12100.00%100.00%02
Malesint12100.00%100.00%02
Femalesint12100.00%100.00%20
Doctor Salaryint12100.00%91.67%00
Death_Numberint12100.00%66.67%00
Complete100%
Unique100%
Timely100%
Risk0.03%
Final99.992%

Measured indicators

Variable-level quality matrix

Displays every selected variable with its type, record count, missing values, completeness, uniqueness, timeliness, suspicious values, outliers, external checks, and details.

Outlier and suspicious-value detection

Highlights risky cells with strong visual colors so analysts can quickly identify unusual values, external inconsistencies, or variables requiring review.

Corrective workflow

Supports data quality actions such as importing databases, checking quality, showing outliers, correcting values, clearing tables, and saving or importing reports.

Custom Program Management System

IRVD Prosthetics & Rehabilitation Information System

Service delivery, case tracking, and operational reporting

Role: Information Manager & System Programmer

IRVDProstheticsRehabilitationCustom systemInformation management

Stack

ASP.NET MVCSQL databaseArabic RTL interfaceGIS mappingOperational reporting

Designed and programmed a custom Arabic information system for IRVD to manage a prosthetics, orthotics, and rehabilitation program. The system connects beneficiary records, service delivery workflows, stage-based follow-up, reporting, statistics, maps, and program variables in one operational platform while keeping sensitive personal data out of public portfolio materials.

Impact

Built a practical system that helped program teams register beneficiaries, track delivered services, manage prosthetic and orthotic service stages, generate daily, weekly, monthly, and phase reports, and monitor service distribution through statistical charts and geographic views.

Custom Arabic RTL information system
Beneficiary registry and search workflow
Prosthetics, orthotics, physiotherapy, consultation, and maintenance service modules
Daily, weekly, monthly, and phase reporting pages
Statistical charts, GIS maps, and service-distribution dashboards
Program variable management and operational data structure

No beneficiary names, internal URLs, or identifiable records are shared in the public portfolio summary.

RTL

Arabic interface

4

Report cycles

GIS

Service mapping

IRVD information management system

Case & Service Workflow Platform

beneficiary registry, service forms, roles, and reporting

private system

System modules

Beneficiaries
Services
Reports
Variables

Case flow

RegisterAssign serviceTrack stageReport

Search case

Beneficiary code

Beneficiary registry

search / edit
M11-1475ProstheticIn service
A9-1159PhysioFollow-up
S7-1181OrthoticRegistered
VisitConsultLimbPrint

Service entry form

Beneficiary code
Service date
Service name
Service place
Service direction
Notes
Add service record

Role-based users

Admin / data / reports

Reference data

services and locations

Reporting outputs

daily to phase reports

Operational audit trail

CreatedUpdatedPrintedReported

Measured indicators

Beneficiary management

The system includes beneficiary search and registration screens with structured identifiers, demographic fields, service buttons, visit history, consultation, treatment, prosthetic and orthotic service actions, and controlled edit/delete workflows.

Service workflow tracking

Service forms capture beneficiary code, service date, service name, service topic, place, provider direction, description, and notes, allowing teams to document each prosthetics, orthotics, physiotherapy, consultation, or maintenance interaction.

Operational reporting

Daily, weekly, monthly, and phase reports summarize beneficiaries and services by date, service type, center, and stage, supporting routine follow-up and donor/program reporting without exposing individual case details.

Statistical and geographic analysis

The system provides statistical tables, center comparisons, beneficiary timelines, service distribution charts, and map-based views to understand coverage and service concentration across program locations.

Variable and reference-data management

Administrative pages manage service variables such as service name, service location, service description, and service direction, helping keep data entry standardized across teams.

Information Management

Multi-Country Information Management Leadership

Operational coordination

Multi-countryInformation managementHealth programs

Led and supported information management operations across Turkey, Syria, Yemen, and Somalia, covering reporting systems, operational workflows, dashboards, and data quality practices.

Impact

Built structured reporting workflows for prosthetics, rehabilitation, dialysis, and blood bank services across multiple health facilities and operational teams.

Operational reporting systems
Data management workflows
Periodic analytical reporting

Information Management

Multi-Country Data Operations

reporting systems, workflows, dashboards, and data quality

4

Countries

Health

Programs

IM

Leadership

Turkey
Syria
Yemen
Somalia

01

Intake

02

Validate

03

Dashboard

04

Report

Service workflows

prosthetics, rehabilitation, dialysis, and blood bank reporting

Analytical outputs

periodic reports and dashboard-ready operational indicators

Data practices

structured validation, follow-up, and reporting discipline

Health Information System

HIS Unit Health Indicators Study

Northern Syria health intelligence

Role: Information Manager

HIS UnitPower BIDHIS2PostgreSQL

Stack

Power BIPythonDHIS2PostgreSQL

Directed the information management work behind an interactive study of health indicators in Northern Syria, connecting facility reporting, indicator analysis, and executive Power BI views.

Impact

Built a public-facing Power BI report covering 200 health facilities, with service sections for admin information, tally clinic, emergency, reproductive health, discharge, blood and dialysis, and rehabilitation.

Interactive Power BI report
Health indicator analysis workflow
Facility mapping and service dashboards

This first public portfolio version uses approved non-patient aggregate views and avoids exposing sensitive operational records.

200

Health facilities

8

Service modules

N. Syria

Geographic scope

HIS Unit

Health Information System Unit

in collaboration with 200 health facilities

Reproductive Health

April 2022

# of Cases by Category

ANC 1st15.5K
ANC 2nd10.1K
ANC 3rd6.9K
ANC 4th9.4K
Births live7,762
M 4,181F 3,581
Low weight184
M 88F 96
Still birth43
M 23F 20
View Power BI report
COVID-19 Health Information System

WHO-Supported COVID-19 HIS Bulletin

Pandemic surveillance and hospital response monitoring

Role: Information Manager

HIS UnitWHO-supportedCOVID-19HospitalizationNorthwest Syria

Stack

Power BIHIS reportingCOVID-19 surveillanceHealth data management

Managed the information workflow behind an interactive COVID-19 bulletin for the Health Information System Unit in Northwest Syria, supported by WHO. The report brought together hospitalization, death, vaccination, admission, and length-of-stay data into a single Power BI experience for routine situational awareness.

Impact

Produced a structured dashboard covering COVID-19 overview indicators, vaccine uptake, admitted cases, hospital and ward length of stay, and death analysis by geography, gender, age group, place of death, date, and contributing conditions.

Interactive COVID-19 HIS bulletin
Hospitalization, admission, and death monitoring views
Vaccination and case-classification analysis
Length-of-stay dashboard for CCTC, ward, and ICU
Geographic mortality maps and contributing-condition summaries

The portfolio summary avoids sharing sensitive line-list or facility-level operational details and focuses on aggregate dashboard structure.

108.18K

Total cases

53.44K

Admissions

2.5K

Deaths

NWS COVID-19

Hospitalizations & Deaths Bulletin

HIS Unit, WHO-supported reporting

NW

108.18K

Cases

53.44K

Admissions

2.5K

Deaths

Key indicators

Admissions34.72K
Deaths2.5K
Vaccinated11.95K

Analytical views

71.38K

Cases

34.72K

Admission

11.95K

Vaccine

2.5K

Deaths

Age/genderMapsLOSDeath chain

Mortality signal

2.5K
59.6%40.4%
Male59.6%
Female40.4%
MapsGenderChain
View Power BI report

Measured indicators

COVID-19 overview

Summarizes total cases, admissions, deaths, case classification, and consultation/admission places across Aleppo and Idleb for high-level monitoring.

Vaccination analysis

Tracks vaccination status among COVID-19 patients, including one-dose, two-dose, non-vaccinated, and missing vaccination-status categories, with comparison by case classification and admission place.

Admitted cases

Analyzes admissions by gender, age group, daily case counts, cumulative trends, and place of admission, supporting hospital-capacity and response planning.

Length of stay

Compares admitted cases and average length of stay in CCTC, hospital wards, and ICU, helping teams understand pressure on different care levels over time.

Mortality analysis

Maps deaths by district and sub-district, then breaks mortality down by age group, gender, place of death, death date, chain of events, and significant contributing conditions.

Multi-Sector Social Study

Estihqaq Gateway Interactive Report

Beneficiary assessment and case-management insight

Saudi ArabiaEstihqaq GatewayKing Salman AssociationMulti-sector study

Stack

Power BISocial assessmentCase-management analyticsArabic BI reporting

Built a confidential interactive Power BI report for Estihqaq Gateway in the Kingdom of Saudi Arabia, connected to King Salman Association work. The report studies beneficiary cases through multiple social-development dimensions and turns assessment forms into navigable decision-support views.

Impact

Created a structured Arabic reporting experience covering customer information, beneficiary profiles, study status, geographic filters, researcher and supervisor follow-up, case-manager views, and development-partner initiatives.

Arabic interactive Power BI report
Multi-dimensional beneficiary assessment views
Researcher, supervisor, and case-manager monitoring pages
Development-partner initiative and completion tracking

No public report link is shared because the dashboard contains sensitive beneficiary and partner information.

6+

Study dimensions

Arabic

Reporting interface

Private

No public link

بوابة استحقاق

المملكة العربية السعودية

multi-sector beneficiary assessment

معلومات العملاء
البعد الاقتصادي
البعد الصحي
البعد السكني
البعد الاجتماعي
البعد القانوني
الممارسات الحياتية
الشركاء التنمويين
Geography
Client
Social status
Study date
Researcher
Study status
Gender
Case score

Assessment Dimensions

confidential

5

Beneficiaries

1

Researchers

46

Avg score

Economic5
Health5
Housing5
Social3
Legal3
Life practices2

Operational follow-up

Research1
Social research1
Develop.tracked

Measured indicators

Customer and beneficiary profile

The report starts from client and beneficiary pages, combining geography, client name, marital/social status, study dates, gender, study approval status, average study score, and beneficiary counts.

Economic dimension

Summarizes economic vulnerability and opportunity axes such as work, income, education, financial awareness, credit, responsibility, and incentive-related indicators.

Health dimension

Reviews health-related assessment areas including physical health and disability, mental health, substance-use risk, and health access or capability indicators.

Housing dimension

Tracks housing condition and stability, showing whether the household is in crisis, potentially stable, or requires housing-related intervention.

Social dimension

Covers family relationships, supportive social relations, and the social environment around the beneficiary, helping case teams identify protection and support needs.

Legal and regulatory dimension

Captures the beneficiary's legal or procedural situation and flags whether the case is safe, threatened, or still building capacity.

Life-practices dimension

Studies daily life practices, basic habits, and mobility or access capability, showing where practical behavior or living-condition support may be needed.

Operational roles and partners

Includes pages for researcher supervisors, social researchers, development supervisors, case managers, case-manager supervisors, and development partners to monitor assignments, initiatives, completion rates, and follow-up responsibilities.

Water Resource Assessment

Northern Syria Wells Assessment

Water security and WASH planning

Role: Data Analysis & Data Management Consultant

EPA SyriaWhite HelmetsWASHWater qualityWells

Stack

Power BIWASH analysisWater quality indicatorsGIS mapping

Developed an interactive wells assessment study for Northern Syria in support of the Environmental Protection Agency of Syria and the White Helmets. The report analyzes 4,419 wells across Aleppo and Idleb, combining location filters, well-use classifications, energy-source information, dry-well status, water-level measurements, flow indicators, and laboratory water-quality results.

Impact

Turned field and laboratory indicators into a decision-ready Power BI study with overview, well maps, water-quality category analysis, average indicator comparisons, sub-district mapping, district and water-source views, and dry-well monitoring.

Interactive wells assessment dashboard
Overview page with 4,419 wells, 2 governorates, 6 districts, and 18 sub-districts
Water quality pages covering pH, TDS, conductivity, turbidity, NO3, NH3, and temperature
Well maps and sub-district mapping views
Dry-well and water-source analysis for WASH planning

The study focuses on aggregate well characteristics and water-quality indicators such as dynamic and static water level, flow, temperature, pH, TDS, conductivity, turbidity, nitrate, and ammonia.

4,419

Assessed wells

2

Governorates

18

Sub-districts

Well interactive study

Quality of Water

EPA Syria and White Helmets

GovernorateAll
DistrictAll
Sub-districtAll
CommunityAll
Type of wellAll
Irrigation typeAll
Source of energyAll

Water Quality Indicators

4,419 wells

19.20

Avg temperature

7.62

Avg pH

347.29

Avg TDS

665.54

Avg conductivity

2.02

Avg turbidity

15.06

Avg NO3

6

Districts

18

Sub-districts

2

Governorates

Well type

3 uses
DrinkingIrrigationBoth

Measured indicators

Temperature

19.20 avg

Tracks the average water temperature, which helps interpret quality readings because temperature can affect taste, microbial activity, and some chemical measurements.

pH

7.62 avg

Shows whether water is acidic, neutral, or alkaline. The report compares pH by governorate and uses it as a core indicator for water suitability and treatment follow-up.

TDS

347.29 avg

Measures total dissolved solids, reflecting salinity and mineral concentration. The dashboard groups wells into TDS categories to identify areas with elevated dissolved content.

Conductivity

665.54 avg

Indicates how strongly water conducts electricity, which is closely linked to dissolved ions and salinity. The report uses conductivity categories to compare wells and flag abnormal values.

Turbidity

2.02 avg

Measures water cloudiness caused by suspended particles. Turbidity categories help identify wells that may need filtration, protection, or additional investigation.

NO3

15.06 avg

Tracks nitrate concentration, often associated with agricultural runoff, wastewater leakage, or contamination risks. The report compares nitrate averages by governorate.

NH3

0.04 avg

Tracks ammonia concentration as a possible signal of organic or sewage-related contamination. The dashboard summarizes well counts by ammonia category.

Water level and flow

Combines static water level, dynamic water level, and flow information to assess well productivity, drawdown behavior, and operational reliability.

Water Infrastructure Assessment

Idlib Water Stations Evaluation

Operational reliability and rehabilitation prioritization

Role: Data Analysis & Data Management Consultant

EPA SyriaIdlibWater stationsInfrastructure scoringWASH

Stack

Power BIWeighted scoring modelWater infrastructure assessmentData management

Developed an interactive evaluation report for water stations in Idlib for the Environmental Protection Agency of Syria. The report assesses the current condition of water stations using a weighted scoring model from 1 to 100, combining engineering, operational, water-quality, staffing, distribution, spare-parts, and safety dimensions.

Impact

Converted station-level assessment data into a Power BI decision tool covering 311 water stations, with district and sub-district comparisons, station-status filters, scoring classifications, maps, detailed station tables, and priority views for repair, rehabilitation, and service continuity planning.

Interactive station evaluation report
Weighted scoring methodology and classification views
District and sub-district scoring dashboards
Maps and station-detail pages for rehabilitation prioritization
Sector-specific scoring pages for mechanical, electrical, civil, treatment, quality, staffing, distribution, spare parts, and safety

The report is based on operational station assessments and is presented here as a non-sensitive portfolio summary using aggregate indicators and visible dashboard structure.

311

Water stations

9

Scoring sectors

1-100

Weighted score

Water Station 2025

Evaluation Report of Water Stations in Idlib

weighted scoring from 1 to 100

DistrictAll
Sub-districtAll
Station statusAll
Scoring classificationAll

311

Stations

9

Sectors

Idlib

Scope

Total Scoring by District

high / medium / low

Sector scores

Mechanical61%
Electrical76%
Civil works63%
Treatment75%
Distribution90%
Safety32%

Scoring classification

High scoring88
Medium scoring91
Low scoring132
Spare parts show a very high low-scoring share.
Safety and staffing require close follow-up.

Measured indicators

Mechanical equipment

Evaluates pumps, intake pipes and raw-water screens, submersible pump discharge pipes, raw-water pumps, treated-water pumps, plant pipes and fittings, hammer protection, and flow meters.

Electrical equipment

Assesses electrical panels and cables for raw-water and treated-water pumps, transformers, power-supply sources, and station power reliability across grid, generator, and solar systems.

Civil and structural works

Reviews the condition of buildings and halls for raw-water and treated-water pumping, ground and elevated reservoirs, treatment buildings, filters, clarifiers, and sedimentation basins.

Water treatment system

Scores treatment components such as chlorine injection, alum dosing, filtration media, backwash systems, sludge disposal, activated carbon, and reverse-osmosis systems where present.

Water quality

Covers drinking-water testing during the previous three months, turbidity, pH, bacteriological analysis, and complaints related to taste, odor, or color.

Human resources

Measures whether the station has sufficient operation and maintenance staff, water-quality monitoring staff, administration staff, and warehouse/support teams.

Distribution system

Evaluates networks and elevated reservoirs, helping identify whether production capacity is matched by functioning distribution infrastructure.

Spare parts

Highlights a critical operational risk area: the dashboard images show spare-parts scoring dominated by low-scoring stations, making it useful for procurement and maintenance planning.

Safety equipment

Assesses station safety readiness. The report shows many stations in low-scoring categories for safety equipment, which helps prioritize immediate risk-reduction actions.

Restricted work

Some dashboards, studies, and operational systems cannot be shown publicly due to confidentiality, client agreements, or sensitive program data. More details can be discussed privately when appropriate.

Discuss relevant work

Ready to improve your data systems?

Let’s turn your data challenges into reliable decisions.

Whether you need data quality checks, dashboards, AI-driven analysis, or reporting automation, we can start with a focused consultation.

Start a project View case studies