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Top Freelance SQL Experts for Hire

Ramya N.

Freelance Biostatistician & Data Analyst | Expert in R & SPSS
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USD 8/hr
MSc.
India

Biostatistician with expertise in statistical data analysis and interpretation.

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USD 8/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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Dr. James B.

Data Science, Scientific Analytics & Technical Writing
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USD 100/hr
Ph.D Atmospheric Chemistry
United Kingdom

I specialise in extracting meaning from complex, high-dimensional scientific datasets — applying machine learning, source apportionment, and be...

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USD 100/hr
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Dr. Orkhan R.

Geoscientist & Data Analyst | Petroleum Engineer with 3+ years of experience in a research institute
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USD 12/hr
Master of Philosophy- Geology
Azerbaijan

I am a Geoscientist and Data Analyst with a background in Petroleum Engineering and over 3 years of experience in a research institute, working...

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USD 12/hr
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Nour M.

Bioinformatics Researcher & MSc Scientist | Biomedical Data Analysis & Scientific Writing
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USD 8/hr
Bacholar degree
Egypt

I am a biomedical researcher with a Master's degree and 2–4 years of hands-on experience in bioinformatics and computational biology. My wo...

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USD 8/hr
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Paulo N.

Senior PhD Bioinformatician — clinical NGS pipelines, variant calling, RNA-seq, QC & cloud (15+ yrs)
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USD 130/hr
PhD
Canada

I help biotech, pharma, diagnostic, and research teams turn sequencing data into reliable, reproducible answers — delivering the whole pipeline...

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USD 130/hr
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Mehdi T.

AI Engineer | LLMs, Agentic AI, RAG Pipelines, MLOps & Scalable ML Systems
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USD 30/hr
focus: AI systems, LLMs, and applied machine learning
Saudi Arabia

AI Engineer and Researcher with 3+ years of experience building production-ready machine learning and Large Language Model (LLM) systems. My wo...

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USD 30/hr
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Jorge H.

I will assist in basic bioinformatics data analysis using R, Python, and Linux
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USD 25/hr
Master of Science in Data Analytics
Mexico

Early-career researcher focused on genomic sciences, leveraging bioinformatics and programming in R, Python, and SQL for large-scale data analy...

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USD 25/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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Dr. Dipanwita B.

PhD Researcher in Materials Science | Nanotechnology, Electrochemistry Expert | Scientific Writer | Research consultant
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USD 21/hr
PhD in Material Science
India

I am a PhD researcher in Materials Science with expertise in nanotechnology, electrochemical sensing, green synthesis of nanoparticles, environ...

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USD 21/hr
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Dr. Bongole G.

5+ years of Monitoring and Evaluation Specialist | Researcher | Program Management | Data Analyst
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USD 40/hr
Master of Public Health Monitoring and Evaluation
Uganda

Epidemiologist and monitoring and evaluation specialist based in Kampala, Uganda, with more than five years of applied experience across...disease surveillance, health systems, infection prevention and control, and the evaluation of large public...

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USD 40/hr
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Anmol D.

Biomedical Science student with laboratory, bioinformatics, and programming expertise, Experienced in genomics, cancer
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USD 30/hr
Bachelor of Biomedical Science
United Kingdom

I am a Biomedical Science student at the University of Sheffield (2023–2027) with a strong...foundation in molecular biology, bioinformatics, and computational research, complemented by experience in public...

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USD 30/hr
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Stanly M.

Freelance Web & Mobile | Expert in AI automation | 7 + years
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USD 50/hr
BS in Computer Science
Egypt

Seasoned Freelance Web & Mobile Developer with 7+ years of experience delivering scalable digital solutions for startups, enterprises, and ...

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USD 50/hr
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Sanjay G.

Machine Learning Developer | Data Analyst | SQL, Python, Power BI, LangChain & Predictive Analytics
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USD 8/hr
Computer Science
India

Computer Science graduate specializing in Machine Learning, Data Analytics, Data Processing, SQL, Python, Power BI, and AI-driven solutions. I ...

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USD 8/hr
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Shivesh M.

AI & Data Science Specialist | Machine Learning, Python & Chatbot Development
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Bachelor of Technology (B.Tech) in Artificial Intelligence and Data Science
India

I am an AI and Data Science professional with a B.Tech degree in Artificial Intelligence and Data Science. My expertise includes Machine Learni...

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Conner K.

Deep Tech Strategist | Product Innovation, Systems Engineering, and TCO/Techno-Economic Analysis
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USD 110/hr
BA Political Economy
United States

My work sits at the intersection of emerging technology, product development, and commercialization strategy. I support teams working with comp...

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USD 110/hr
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Dr. Flavien O.

Evidence Synthesis Methods: Rapid & Systematic Reviews, Scoping & Methodological Reviews, Evidence Gap Maps, Lan...
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USD 25/hr
PhD
Canada

I specialized in automated systhesis (using python-based piplines with machine learning, NLP, and deep clustering) to streamline both search an...

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USD 25/hr
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Dr. Sadi Evren S.

AI Strategy & Data Science Expert | LLMs, Predictive Modeling, Customer Analytics, Banking & Telecom
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USD 150/hr
PhD.
United States

I am an AI strategy expert, data scientist, and academic with over 15 years of experience in artificial intelligence, machine learning, and dat...

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USD 150/hr
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Nomusah N.

Information Systems Audit Expert | IT Risk & Compliance | Research Support
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USD 50/hr
Master of Commerce (Information Systems)
South Africa

I am an IT professional with over a decade of experience across various domains including IT governance, risk management, compliance, and infor...

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USD 50/hr
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Dr. Sidi Mohamed A.

PhD Economist & Certified Data Analyst | Econometrics, Policy Research & Statistical Analysis | R, Python, SPSS
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USD 60/hr
Doctorat en Sciences Économiques / PhD in Economics
Mauritania

Economist at the Central Bank of Mauritania, with about twenty years of experience in institutional research and economic analysis. PhD in Econ...

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USD 60/hr
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Dr. Brandon H.

Machine Learning Scientist, PhD | Biomedical Signal & Image Analysis, EEG/MRI, Python & PyTorch
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USD 100/hr
PhD | Neuroscience
United States

I'm a machine learning scientist with a PhD in cognitive neuroscience and over a decade of experience turning noisy, high-dimensional biome...

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USD 100/hr
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Kaushal K.

Data Engineer & Cloud Consultant | Databricks | GCP | Kafka | IBM MQ/ACE | ETL & AI Solutions
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USD 22/hr
M.Tech in Data Engineering
India

I am a Data Engineering and Integration Consultant with 4 years of experience designing, developing, and supporting enterprise-grade data and m...

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USD 22/hr
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Dr. Robbie C.

Computational neuroscientist with virtual healthcare industry experience.
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USD 150/hr
PhD | Neuroscience
United States

AI/ML Engineer and Data Scientist with a decade of experience driving digital health innovation from startup inception to large-scale data solu...

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USD 150/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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Michael G.

Certified Cloud Practitioner | Software Developer | Mathematics & Computer Science Student | Tech Enthusiast
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USD 10/hr
Bachelors of Science in Mathematics and Computer Science
Kenya

Certified Cloud Practitioner | Software Developer | Mathematics & Computer Science Student | Tech Enthusiast

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USD 10/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.

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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.