Talent badge filter
Skills filter
Select talent location
Select talent time zones
$50/hr
100%
Job Success
Available now
Offers consultations
Start of list.
End of list.
Top Rates Plus - awarded to the top 3% of Upwork freelancers!
Experienced Senior Statistical Programmer with over 8 years of expertise in clinical trials and pharmaceutical research across therapeutic areas including oncology, cardiology, dermatology, gastroenterology, neurology, hematology, Real World Evidence (RWE), peptides and vaccines studies. Strong leadership capabilities in coordinating programming activities and timelines across multiple studies in phases I-IV. Dedicated to maintaining data integrity and supporting efficient clinical trial operations. Proficient in the development of statistical computing environments and serving as a clinical trials subject matter expert (SME) for software development companies supporting clinical research solutions.
For a detailed overview of my hands-on responsibilities and real-world contributions, please refer to the Employment section, which outlines how this expertise has been applied across clinical trial development and pharmaceutical research projects.
I hold Bachelor of Data Science degree from the American University of Armenia. My educational background, combined with hands-on experience, has equipped me with a robust skill set and a deep understanding of statistical methodologies and programming languages relevant to the clinical trials domain.
My technical skills include proficiency in:
SAS Programming (Advanced Level Certified, see in the 'Certifications' section):
• Advanced SAS/BASE, SAS, SQL, SAS/MACRO, SAS/GRAPH, SAS/STAT, SAS/PROC, ODS output
• SAS Viya (cloud version), Integration with R and Python, SAS Visual Analytics
• Arrays, Hash Objects, Advanced Indexing, Memory Management
• Handling large and complex datasets with efficient I/O and parallel processing techniques
• Advanced macro writing, debugging and dynamic code generation, nested and
recursive macros
• Git/version control tools
R Programming:
• Clinical packages - pharmaverse, admiral, sdtmoak, tfrmt, gtsummary, PKNCA
• Data manipulation and transformation - tidyverse, dplyr, tidyr, purrr, stringr, lubridate, tibble (implicit), readr (implicit)
• Data visualization - ggplot2, plotly, gtsummary (dual-purpose), gt, flextable, patchwork, cowplot
• High-quality analytical reports - rmarkdown, knitr, quarto
• Interactive dashboards and applications using R Shiny
Python Programming:
• Python core (data types, control flow, functions, modules), NumPy, pandas, SciPy.
• Clinical data processing with pandas (joins, reshaping, group summaries, derivations comparable to SDTM/ADaM workflows).
• Integration with SAS and R (reading/writing SAS datasets via pyreadstat, interoperability for QC and validation).
• Data visualization and reporting (matplotlib, seaborn, Excel/CSV outputs, automated report generation).
• Advanced data handling (vectorization, memory optimization, chunked processing, handling large datasets).
• Statistical analysis in Python (descriptive statistics, hypothesis testing, regression, survival analysis using lifelines).
• Validation and quality control frameworks (independent QC of SAS outputs, data consistency checks, audit-friendly logs).
• Unit testing and code quality (pytest, structured logging, reproducible environments).
• Metadata and XML processing (Define-XML handling, CDISC metadata validation using xml/lxml).
Power BI & Business Intelligence:
• Design and development of interactive Power BI dashboards for exploratory and operational analytics
• Data modeling using Power BI semantic models, relationships, and star-schema concepts
• Data transformation and preparation using Power Query (M language)
• KPI development, filters, drill-downs, and slicers for executive-ready reporting
• Integration with multiple data sources (CSV, Excel, SQL databases, APIs)
• Performance optimization for large datasets (model size, relationships, DAX efficiency)
• Secure sharing and collaboration using Power BI Service
Project Management: Working with Jira, Scrum, GitHub
Microsoft Office tools: Microsoft Word, Excel, PowerPoint, Access, Outlook
Driven by a passion for continuous learning and a collaborative spirit, I am known for my easy-going demeanor and my ability to thrive in team environments within the clinical trials field. I approach each project with dedication and attention to detail, consistently delivering results that exceed expectations and contribute to the advancement of clinical research.
John H.
has worked
.
$50/hr
100%
Job Success
$1K+ earned
Offers consultations
Start of list.
End of list.
SAS consultant specializing in IFRS9 & IFRS17 regulatory implementations, SAS Viya 4, and risk reporting for banks and insurers. 4+ years delivering production-grade SAS solutions across some of MENA's largest financial institutions.
Most SAS freelancers do one thing — write programs or run statistics. I cover the full lifecycle banks and insurers actually need:
- Regulatory implementation — IFRS9 and IFRS17 on the SAS Solution: data-quality rules, staging/ETL alignment to input specs, model-run debugging, and reporting redesign.
- Platform deployment & administration — SAS Viya 4 on Red Hat OpenShift, SAS 9.4 on RHEL, Ansible installs, LDAP integration, hotfixes/patches, and environment hardening.
- Automation & development — Base SAS, Macros, DI Studio ETL, Stored Process batch chains, and SQL pass-through.
- Reporting & BI — SAS ODS/EXCEL, SAS Visual Analytics, and Power BI dashboards for risk, fraud, and monthly bank reviews.
Recent work: redesigned the IFRS9 implementation and reporting layer for a top-tier MENA bank, deployed SAS Viya 4 on OpenShift, automated an IFRS9 batch chain with Stored Processes, and ran a full security-remediation pass on a production SAS 9.4 environment (Log4j, end-of-life components, SSH hardening) with an audit-ready register.
I hold the SAS Base Programming Specialist certification and an engineering degree in computer science (BI specialization). I work fluently in English and French.
Need someone who can implement the regulation, stand up the platform, AND ship the report — not just one piece? Let's talk.
Mohamed Walid B.
has worked
.
United States
$80/hr
100%
Job Success
$600K+ earned
Available now
Offers consultations
Start of list.
End of list.
A dynamic Senior Biostatistician and Data Scientist seeks to bring an accomplished combination of education and experience to an industry-leading employer. 15+ years of experience in related data analysis, computer programming, and instruction roles for distinguished universities. Ph.D. in Biostatistics, with an M.S. in both Bio-Engineering and Applied Mathematics. Proficient in data management, mathematical modeling, grad/undergrad instruction, longitudinal/statistical analysis, project management, and more. Diligent and goal-oriented, with the skills, education, and hands-on experience needed to make an immediate impact as part of any fast-paced team.
Yangyang D.
has worked
.
$90/hr
93%
Job Success
$300K+ earned
Offers consultations
Start of list.
End of list.
Your marketing spend is scaling, but your profit margins aren't following. Your teams are drowning in spreadsheets, and your current dashboards create more questions than they answer.
𝗜 𝗳𝗶𝘅 𝘁𝗵𝗶𝘀.
As a Data Scientist and Marketing Analytics Expert with over 12 years of experience, I help business owners stop guessing and start scaling. With an M.S. in Statistics (Texas A&M) and deep expertise in Tableau, SQL, and R, I build the automated data pipelines and executive dashboards that leadership teams actually use to drive revenue.
I don't just hand over charts, I treat your marketing like a highly optimized production line to eliminate waste and maximize profit.
🎯 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿 (𝗢𝘂𝘁𝗰𝗼𝗺𝗲𝘀 𝗬𝗼𝘂 𝗖𝗮𝗻 𝗘𝘅𝗽𝗲𝗰𝘁):
1. 𝗘𝘅𝗲𝗰𝘂𝘁𝗶𝘃𝗲 𝗧𝗮𝗯𝗹𝗲𝗮𝘂 𝗗𝗮𝘀𝗵𝗯𝗼𝗮𝗿𝗱𝘀: Clean, interactive dashboards that put profit-driving KPIs front and center (CAC, LTV, ROAS, Payback Period, Conversion).
2. 𝗠𝗮𝗿𝗸𝗲𝘁𝗶𝗻𝗴 𝗦𝗽𝗲𝗻𝗱 𝗢𝗽𝘁𝗶𝗺𝗶𝘇𝗮𝘁𝗶𝗼𝗻: Aligning your marketing data with profit metrics, historically delivering 15–30% ROI improvements for my clients.
3. 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗲𝗱 𝗥𝗲𝗽𝗼𝗿𝘁𝗶𝗻𝗴 𝗣𝗶𝗽𝗲𝗹𝗶𝗻𝗲𝘀: Replacing manual, error-prone spreadsheet work with automated SQL/R data workflows that speed up decision cycles by 20–50%.
4. 𝗣𝗿𝗲𝗱𝗶𝗰𝘁𝗶𝘃𝗲 𝗠𝗼𝗱𝗲𝗹𝗶𝗻𝗴 & 𝗦𝗲𝗴𝗺𝗲𝗻𝘁𝗮𝘁𝗶𝗼𝗻: Uncovering your most high-value customers and most profitable acquisition channels using advanced statistical analysis.
🏆 𝗪𝗵𝘆 𝗖𝗵𝗼𝗼𝘀𝗲 𝗠𝗲?
• 𝗧𝗼𝗽 𝗥𝗮𝘁𝗲𝗱 𝗘𝘅𝗽𝗲𝗿𝘁: 5+ years of delivering 5-star results on Upwork.
• 𝗦𝘁𝗮𝘁𝗶𝘀𝘁𝗶𝗰𝗮𝗹 𝗥𝗶𝗴𝗼𝗿: M.S. in Statistics ensures my models and insights are mathematically sound, not just superficial vanity metrics.
• 𝗦𝘁𝗿𝗮𝘁𝗲𝗴𝗶𝗰 𝗣𝗮𝗿𝘁𝗻𝗲𝗿: I don't just build what you ask for; I advise on what you actually need to hit your growth targets.
🛠️ 𝗖𝗼𝗿𝗲 𝗧𝗲𝗰𝗵 𝗦𝘁𝗮𝗰𝗸 & 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀:
• 𝗕𝗜 & 𝗩𝗶𝘀𝘂𝗮𝗹𝗶𝘇𝗮𝘁𝗶𝗼𝗻: Tableau (Dashboard Design, Blending, Automation, Interactivity)
• 𝗗𝗮𝘁𝗮 𝗦𝗰𝗶𝗲𝗻𝗰𝗲 & 𝗔𝗻𝗮𝗹𝘆𝘀𝗶𝘀: R, SAS, Predictive Modeling, Linear Regression, Forecasting, Cohort Analysis, Propensity Modeling
• 𝗗𝗮𝘁𝗮 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴: SQL, ETL Pipelines, Automated Reporting, Data Modeling, AWS, Athena, PostGres, Make
• 𝗗𝗼𝗺𝗮𝗶𝗻 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲: Marketing Analytics, E-commerce, Manufacturing, Campaign Reporting
Ready to stop guessing and scale with clarity? Send me a message or book a consultation to discuss your current data setup and how I can turn your analytics into a profit center.
$30/hr
100%
Job Success
$60K+ earned
Start of list.
End of list.
Excel (Macros-VBA), SQL, Access, PowerBI, Google Sheet expert, with more than 20 years experience in: data analysis, ETL, data visualizaton, improvement of processes, dynamic applications, covering: Accounting, Pricing, HR, Time Sheets, Invoicing, CRM, Finnancial Issues, Business Plannig, Data Consolidation, PDF Generation, Administrative tasks, etc..
$20/hr
100%
Job Success
$10K+ earned
Available now
Start of list.
End of list.
4 years of experience as a freelance statistician & econometrician & 10 years of teaching with a
strong background in data analysis, visualization, and interpretation.
- MPhil in Statistics & Research from IQRA university in Pakistan
- Freelance statistician helping clients extract insights using SPSS, R, Stata, Excel, and a strong foundation in Python and Amos.
- Have massive experience in handling data pulling, manipulating, processing, building models, and survey data, time series and panel data modelling
-Let's bring something fruitful from your data and get rid of the headache of data.
$50/hr
100%
Job Success
$10K+ earned
Start of list.
End of list.
I am an epidemiologist and biostatistician with over five years of applied experience conducting statistical analyses for clinical, public health, and health services research. I currently work full-time as a biostatistician at UCLA Health, supporting physician-led and investigator-initiated studies across multiple medical specialties.
My training includes an MPH, an MS in Data Analytics, and formal graduate-level coursework in biostatistics and epidemiologic methods. I specialize in the design, analysis, and interpretation of observational and clinical data, with particular strength in causal inference, regression modeling, and large-scale healthcare datasets. I have extensive experience working with electronic health records and claims data (including longitudinal, high-dimensional datasets), and I routinely translate complex statistical results into clear, decision-relevant outputs for clinicians and research teams.
Technical expertise includes:
- Statistical modeling: logistic, linear, Cox and competing risks models, mixed-effects models, generalized estimating equations
- Causal and quasi-experimental methods: propensity scores (matching/weighting), difference-in-differences, instrumental variables, regression discontinuity
- Study design and power/sample size calculations
- Machine learning for prediction (with an emphasis on interpretability)
- Reproducible analysis pipelines and reporting
Tools: SAS (Base and Advanced 9.4 certified), R, Python, SQL
I frequently support projects end-to-end, including analytic plan development, data cleaning and cohort construction, model implementation, results interpretation, and preparation of tables and figures for manuscripts, grant applications, and regulatory or internal reports. I am also available for targeted statistical consulting, code review, and methodological troubleshooting.
I am particularly well-suited for clients who need rigorous, publication-quality biostatistical support and clear communication—not black-box analyses. If you are working with health, clinical, or epidemiologic data and need a statistician who understands both methodology and applied constraints, I can help.
Meri S.
has worked
.
$150/hr
100%
Job Success
$600K+ earned
Available now
Start of list.
End of list.
Do you find yourself frustrated by the complexity of data integration and the lack of in-house expertise? Have a huge amount of transactional data but facing challenges in identifying key metrics and visualizing data effectively? Looking to save time through automation?
Look no further! I have helped clients save 10,000+ hours of manual work, boosted efficiency by 5X to 10X, and taken data-driven decisions through powerful insights.
Here are some of the results my clients are getting:
🏅“fantastic job- he handled everything with ease…” – transformed reporting landscape to Power BI, reducing report generation time by 50%. Trained 50 employees,60% increase in data analysis proficiency.
🏅”great job- quality work on time , professional and punctual…” - Dramatically enhanced data preparation efficiency by transforming a labor-intensive 3-day process into a lightning-fast 1-hour refresh
🏅“would recommend his services to anyone!”- Collaborated with L'Oreal to deliver transformative BI solutions and Power BI dashboards, resulting in a remarkable reduction of 10,000+ manual hours
With over 10 years of experience as a BI developer and Data Visualization Expert, I possess end-to-end expertise in Data Warehousing, ETL, Data Modeling, Project Management, Implementation, and Training, making me a specialist in delivering comprehensive BI solutions.
Proven track record of successfully integrating into teams, fostering creativity, and driving impactful results. I have expert level skills in all advance features of Power BI.
With a wealth of global experience, I have had the privilege of serving renowned clients like:
⭐L'Oreal
⭐Aruba Networks
⭐Stanford Medical School
⭐Ito En
⭐Mauser
⭐Producer Dairy
We may be a great fit if you are thinking:
🔑”Excessive time and effort wasted in manual data entry and processing- I NEED automation”
🔑”Lack of data integration and synchronization causing inefficiencies and duplication”
🔑”We have great deal of data - I need data-driven revenue maximization”
🔑”Inaccurate datasets leading to unreliable insights and outcomes”
🔑”Limited scalability of existing data infrastructure, unable to handle increasing data volumes”
I have successfully connected more than 200+ Power BI reports and dashboards to multiple backend databases, leveraging my expertise in creating dynamic and interconnected dashboards for comprehensive data analysis.
Working with me, you will:
🎉Automate manual processes, saving you SIGNIFICANT time and effort, so you can focus on other high-value tasks.
🎉Unleash powerful data insights for informed, data-driven decisions that propel your business forward.
🎉Get accurate and reliable data, ensuring data integrity for reliable analysis
🎉Tap into accurate and reliable insights, BOOSTING your business growth with confidence
My background in numbers:
✅10+ years of industrial experience as a BI developer and Data Visualization Expert
✅ Delivered more than 500+ Dashboards and reports
✅ Streamlined ETL processes, reducing data processing time by 40%
✅Trained more than 70+ personnel - leading to a 60% increase in data analysis proficiency and actionable insights.
Data Services:
🔹Power BI Dashboard Development
🔹Data Modeling, ETL Processing, Data Warehousing
🔹Process and Analytical Modeling
Industries I served:
🔹FMCG
🔹Technology and Software
🔹Logistics and Supply Chain
🔹E-commerce and Retail
🔹Warehousing and Distribution
🔹Defense
🔹Finance and Banking
Database and Tools:
✔️ Microsoft stack: Microsoft Power BI, Azure, Office 365 ,Power BI Report Builder ,Excel
✔️Relational databases: SQL Server, MySQL, PostgreSQL, Access,SAP,Salesforce
✔️Programming languages:Python, VBA, DAX, SQL
SOUND LIKE A FIT? NEXT STEPS:
Click the green ‘Invite to Job’ button in the top right-hand corner, send me a message and let’s organize a call!
✋🏼We want to build your dashboard!
We are focused on designing dashboards that are aesthetically pleasing, functional and meet the needs of your organization. As an experienced Data Visualization, and BI Solutions Expert with over 9 years of corporate experience, I have worked with many large and international enterprises to help extract insights from their data and improve their operations.
I can provide an end-to-end BI solution including Data Warehousing, ETL, Data Modeling, Project Management, Implementation and Training. As an Engineer with business operations experience, I bring a diverse perspective from working across multiple industries and all levels of an organization. I pride myself in my ability to integrate into your team, promote creative solutions and drive results.
THE PROCESS:
Gather Requirements 🡆 Build Prototype 🡆 Iterate until Satisfied!
I believe in a simple, iterative approach that focuses on delivering results a
Associated with
NBS BI
$40K+
earned
$35/hr
100%
Job Success
$4K+ earned
Offers consultations
Start of list.
End of list.
Are you in search of a skilled and detail-oriented statistician and data analyst who has the right domain knowledge to extract accurate insights from your research, survey, electronic health records, randomized controlled trials, development programming, and business data? If yes, you have come to the right profile. I am a data analyst with over ten years of experience in working with various tools such as Excel, Stata, R, Python, SAS, and Power BI. I am not only interested in working with data but also enthusiastic about the stories and insights that it can reveal, particularly if such findings can contribute to business and policy decisions.
While a typical analyst may view data in terms of numbers and values, I will collaborate with you to identify the relevant econometric models based on the domain knowledge to analyze your dataset accurately and provide valuable insights. I possess subject matter expertise in education, engineering, sales, healthcare, gender, and international development. Therefore, you will be hiring someone who can personalize your project through a deep understanding of your dataset.
I possess expertise in multiple areas, including:
→ Designing and analyzing surveys using techniques such as stratification, clustering, weighting factors, design effects, etc.
→ Designing and analyzing randomized controlled trials
→ Conducting descriptive, predictive, and inferential statistical analysis
→ Cleaning and mining data using Stata, R, Python, and SAS
→ Performing regressions such as OLS, polynomial, logit, probit, ordinal, multinomial, Heckman, etc.
→ Using regularization regressions such as ridge and lasso
→ Applying count models regression techniques such as Poisson, negative binomial, zero-inflated, etc.
→ Using instrumental variable regression, panel data regression, and time series analysis
→ Conducting principal component and factor analysis
→ Performing survival analysis using techniques such as censoring, survivor function, Cox regression, Kaplan-Meier curves, and hazard function
→ Interpreting results in detail and writing reports on findings.
Let me know if you have any further questions or if you need any assistance with any of these areas.
Get in touch with me at let’s bring your project to life in the shortest possible time.
Itodo A.
has worked
.
Canada
$16/hr
100%
Job Success
$20K+ earned
Start of list.
End of list.
** 10+ years experience with data manipulating, querying, analyzing, mining and modeling
** Master Degree (3 years) and Bachelor Degree (4 years) in Applied Mathematics and Statistics
** SAS Certified both Base and Advanced Programmer for SAS 9 credentials
** Good at Excel, SPSS, R, MATLAB, etc.
Jian Y.
has worked
.