Top Freelance SQL Experts for Hire

Dr. Lomash S.

R Statistics & data Analyst, Scientific Manuscript Writing, Plant Genetics & Agricultural Research Consultant,
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USD 25/hr
3 months training program on Bioinformatics with a research, titled “Phylogenic Relationship and evolutionary history of selected allium species: A Molecular Analysis”
India

While I am new to Kolabtree, I bring years of academic research experience and am committed to delivering high quality, reliable, and timely re...

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USD 25/hr
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Guillermo C.

Environmental Data Scientist | Statistics, Remote Sensing, GIS, Google Earth Engine, R & Python
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USD 65/hr
Master of Science in Agricultural Sciences
Ecuador

I am an Environmental Data Scientist and Statistical Consultant specializing in environmental research, statistical modeling, remote sensing, G...

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USD 65/hr
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Dr. Max L.

Research Software Engineer/Developer for Behavioural Research
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USD 80/hr
Ph.D., Experimental Psychology
United Kingdom

I design and build custom software and experiments for behavioural and psychological research in an academic context. I hold a PhD in Psycholog...

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USD 80/hr
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Princess J.

Data Analyst | SQL, Excel, Power BI & Tableau | Business Intelligence & Data Visualization
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USD 20/hr
B.Sc Medical Biochemistry
Nigeria

Good data does more than tell you what happened. It helps you understand why it happened and what to do next. That is where I focus my work. I...

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USD 20/hr
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Tomasz M.

RWE Statistical Programmer | SAS SQL R Python
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USD 70/hr
Master in Pharmacy
Poland

MPharm and Statistical Programmer with 7+ years of experience in SAS, SQL, R, and Python, specializing in Real-World Data (EHRs, claims, survey...

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USD 70/hr
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M. TAJMINUL A.

Statistician & Data Analyst | R, SPSS, Excel, Statistical Modeling & Climate Data Analytics
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USD 30/hr
MSc in Statistics and Data Science
Bangladesh

I am a Statistician and Data Analyst with extensive experience in statistical analysis, research, data validation, reporting, and quantitative ...

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USD 30/hr
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Jacqueline O.

Epidemiologist & Clinical Research Data Specialist | Data Analysis, Clinical Research, REDCap, SAS/R & S...
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USD 50/hr
MPH
United States

I am an epidemiologist and public health data consultant with 10+ years of experien..., clinical research, public health surveillance, health informatics, and quantitative data analysis....

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USD 50/hr
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Dr. Viktor R.

PhD in Mechanics | Mathematical modelling, Python data analysis, RAG/LLM evaluation
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USD 35/hr
Candidate of Technical Sciences (PhD equivalent), Mechanics of Deformable Solids
Ukraine

I have a PhD-level degree in mechanics (Candidate of Technical Sciences, Ukraine). I taught at university for 27 years and also did research, c...

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USD 35/hr
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Seyma A.

Medical Researcher | Public Health Specialist | Healthcare Data Analyst| Medical writer with 10+ years
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USD 40/hr
Public Health Specialist
Turkey

I am a Medical Doctor and Public Health Specialist with over 10 years of experience in medical and publications in public health, epidemiology, mental health...

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USD 40/hr
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Md A.

AI & Full-Stack Developer | Generative AI, LangChain & LangGraph | IEEE Published Researcher
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USD 15/hr
Integrated BTech plus Mtech
India

I am a software developer and AI enthusiast with a strong interest in Generative AI, full-stack development, and intelligent systems. My experi...

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USD 15/hr
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Jun Fu L.

Epidemiology & Public Health Data Analyst | Expert in R, Python, SQL, and Medical ...
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USD 20/hr
Master of Public Health
Taiwan

I am a public health researcher specializing in epidemiology and medic...With a Master’s degree in Public Health (epidemiology) and over 10 peer-reviewed international publications...

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USD 20/hr
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Engr Huzaifa S.

Computer Engineer with experience in IC Design Verification, Embedded Systems & Full-Stack Development YOUTUBER
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USD 11/hr
BS COMPUTER ENGINEERING
Pakistan

Computer Engineering graduate from HITEC University with extensive hands-on experience in embedded systems, IoT development, PCB design, and so...

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USD 11/hr
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Dr. Mehmet D.

Prof.Dr Mol. Bio&Genetics, Academic Visitor at Oxford Uni. EC Project Expert, Leadership Head of Dept, Science Edito...
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USD 80/hr
PhD Molecular Genetics
United Kingdom

A distinguished Associate Professor of Molecular Biology and Genetics and independent Principal Investigator (PI) currently serving as an Acade...

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USD 80/hr
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Rachel A.

PhD scientist/engineer with 7+ years experience in biotech and genomics space
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USD 75/hr
Ph.D., Physical Chemistry
United States

• Extensive experience leading cross-functional product development programs and teams • Management experience as a people manager, team leader...

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USD 75/hr
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Rajat Raj V.

Psychology PhD Researcher | Research Consulting, Literature Reviews, SPSS/Jamovi Analysis & Survey Design
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USD 20/hr
MSc
India

I am a Psychology PhD scholar at IIT Bombay with an MSc in Psychology from Banaras Hindu University. My research experience includes a research...

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USD 20/hr
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PANAGIOTA A.

Senior Physics & Health Informatics SME | PhD Researcher in Mental Health & Data Analytics
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USD 25/hr
PhD in Mental Health
Greece

Highly accomplished Physicist, Academic Expert, and Senior Scientific Researcher with over 20 years of experience in higher education, scientif...

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USD 25/hr
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Emmanuel O.

Data Analyst | R & Python Pipelines, SQL, Power BI Dashboards & Reporting Automation
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USD 35/hr
Masters of Science
United Kingdom

I’m a UK-based data analyst helping organisations turn complex data into reliable reports, clear dashboards and repeatable workflows. My exper...

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USD 35/hr
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Renaud C.

Assistant Professor & Quantitative Methodologist | Statistics & R for Management & Health Research
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USD 150/hr
MBA
Canada

I am an assistant professor of business administration at Université de Moncton and a doctoral candidate in Interdisciplinary Studies at t...

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USD 150/hr
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Dr. Lalremruata B.

Healthcare Quality & Public Health Expert with 10+ years of experience| NQAS, NABH, HMIS & Clin...
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USD 50/hr
Doctor of Pharmacy
India

I am a healthcare professional, quality management consultant, and digital health systems developer with over 10 years of...experience across healthcare quality assurance, clinical pharmacy, academia, hospital management, and public...

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USD 50/hr
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Dr. Muhammad J.

PhD in Computer Science | Expert in Scientific Visualization, Data Analysis & Algorithm Development
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USD 50/hr
Doctorate
Germany

I am an accomplished IT scientist with a PhD in Computer Science, specializing in medical visualization and software development. My work has f...

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USD 50/hr
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Dr. Eleni D.

PhD MRI Physicist & Medical Imaging Consultant | 7T/9.4T MRI, Quantitative Imaging & AI Validation
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USD 100/hr
PhD in Magnetic Resonance Imaging (Neurophysics)
Cyprus

I am a Medical Physicist and Research Scientist with a PhD in Magnetic Resonance Imaging (MRI) from University College London (UCL) and extensi...

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USD 100/hr
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Dr. Adam S.

PhD Academic Writer | Dissertations | Thesis | Research Papers | Researcher | Scientific Writer | Editor | Proofreader
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USD 8/hr
Doctor of Education (EdD)
India

Former university professor & PhD-qualified academic consultant with 12 years of experience delivering publication-ready dissertations, the...

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USD 8/hr
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Dr. Kevin C.

Quantitative Research & Data Analytics Consultation | Statistics, SQL, Power BI & Program Evalu...
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USD 75/hr
Doctorate
United States

I am a director-level data analytics and accountability professional with 15 years of experience in K–12 education and extensive experience tra...

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USD 75/hr
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Dr. Somia A.

PhD Computer Science Researcher | Academic Editor | Data Analyst | Python, SPSS, SmartPLS & Power BI
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USD 35/hr
Ph. D Computer Science
Pakistan

I am a PhD-qualified Computer Science researcher, published author, university lecturer and academic editor. I also hold MS and BS degrees in S...

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USD 35/hr
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Dr. Rami A.

Fractional Analytics Lead | BI & analytics, forecasting | PhD economist, 17+ years
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USD 200/hr
Dr. rer. pol.
Germany

I'm an economist (Diplom-Volkswirt, PhD from Freie Universität Berlin) with more than 17 years in BI and data analytics at MyHammer, T...

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USD 200/hr
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Kolabtree is the leading online marketplace for SQL experts. Post your project, get bids, and hire qualified experts quickly and easily.

pay-per-click
Confidentiality Assured

We take several measures to help you work with full confidence and peace of mind.

Keep your project private

Restrict who can see your project and send you proposals. Invite only specific freelancers to view your project.

NDAs and IP protection

Our T&C include a default confidentiality clause that protects your IP and NDA for added protection before disclosing project details.

Kolabtree ensures the safety and security of your payments, personal information and project details. Kolabtree’s T&C include a default confidentiality and NDA clause.

You will receive detailed proposals directly from Kolabtree. These proposals will include a comprehensive Statement of Work (SOW), project fees, milestones and deadlines.

You can choose to pay either a fixed or an hourly fee based on your scope of work. Pre-pay for the next milestone. You have to approve the deliverables only if the quality meets your expectations. If you aren't happy, we'll refund your money.

Kolabtree will share multiple quotations for your project. You have the freedom to accept the quote that aligns with your project requirement and budget. You can get in touch with us if you want to discuss the fee.

Our T&C include a default confidentiality clause that protects your IP and NDA for added protection.

Why Kolabtree

Contact experts directly

Speak directly with freelancers and explain your requirements.

100% satisfaction guaranteed

You have to approve the deliverables only if quality meets your expectations. If you aren't happy, we'll refund your money.

Project Management

Keep track of files and conversations in the user-friendly Workspace.

Flexible, secure payments

You can choose to pay either a fixed or an hourly fee based on your requirement.

How it works View full page
1

Post your Project (Free)

Your project details are safe, secure and visible only to logged-in users.

2

Get Quotes & Choose Experts

Discuss your requirements in detail with the experts before accepting the final statement of work from Kolabtree.

3

Collaborate

Pre-pay for your project and work with the expert to get your desired output. Keep track of files and conversations in the user-friendly Workspace.

4

Job Done!

Approve the deliverables once you're satisfied with the job done.