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Top Freelance SQL Experts for Hire

Safat S.

Statistical Data Analyst and Academic Researcher | Expert in SAS, SPSS, Minitab and SatScan
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USD 25/hr
Master of Science (Statistics)
Canada

Statistical data analyst with proven experience in statistical analysis and academic research in multiple fields (i.e. tourism industry, market...

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USD 25/hr
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Dr. KJ A.

Freelance Medical Sciences Writer and Data Analyst with +20 years experience in medical research
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USD 43/hr
PhD
Canada

A PhD from the Institute of Medical Sciences with a certificate in Data Sciences, I have extensive experience in manuscript writing, proposal ...

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USD 43/hr
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Dr. Ray R.

Measurement Scientist and Research Methods Expert with 15+ Years of Experience in Education and the Social Sciences
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USD 75/hr
Family & Human Development
New Zealand

I am measurement scientist and research methodologist with over 15 years experience in leading high impact, often externally funded research pr...

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USD 75/hr
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Marian M.

Academic Machine Learning Engineer & Data Scientist
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USD 25/hr
Masters of Science in Computer Science (Bioinformatics)
Egypt

I am Marian Magdy. I graduated from the American University in Cairo, major computer science. Also, I gained my master's degree in computer...

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USD 25/hr
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Toban W.

Freelance Economist & Machine Learning Engineer | Expertise in Bayesian methods
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USD 140/hr
PhD
United States

Economist with over 8 years of industry experience in data science, machine learning, and AI engineering. I specialize in causal inference and ...

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USD 140/hr
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Jeffrey C. R.

Cyber Security Architect | Data Security | Researcher | Educator with 25+ computer science experience
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USD 75/hr
Masters of Information Science
Canada

I am a cybersecurity leader with 25+ years of experience architecting secure systems, guiding cloud transformations, and strengthening cyber re...

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USD 75/hr
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Reuben M.

Data Scientist | Research & Analytics Consultant | Tech Systems Builder
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USD 10/hr
PhD in Data Science
Malawi

I help organizations, researchers, and businesses turn complex data, research problems, and digital ideas into clear, usable solutions. My stre...

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USD 10/hr
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Dr. Connor M.

PhD-trained ML scientist with 8+ years in fundamental research and building production ML/CV systems.
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USD 108/hr
Doctor of Philosophy
United States

I am a PhD-trained machine learning scientist with 8+ years of experience designing, deploying, and operationalizing production ML and computer...

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USD 108/hr
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Miraj R.

AI Researcher | LLM, RAG, AI Agents & Deep Learning Expert
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USD 30/hr
Masters of Engineering
China

I am an AI Researcher and Machine Learning Engineer specializing in Large Language Models (LLMs), AI agents, retrieval-augmented generation (RA...

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USD 30/hr
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Dr. Conrad G.

Immunology PhD - Python/Matlab programmer for Data Processing & Analysis
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USD 40/hr
PhD in Immunology
Saint Lucia

PhD in Immunology from a leading UK university with extensive experience in computational biology, bioinformatics, and scientific data analysis...

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USD 40/hr
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Dr. Hubert M.

Researcher | Data Processing Specialist | C++ Expert | Former Lead Game/Animation Programmer
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Masters in Computer Science and Engineering
United Kingdom

+10 years experience in game industry (specialist of gameplay/animation/physics systems), +5 years experience in system/database/AI research a...

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Muqudas R.

MS EE and Research consultant specializing in academic writing, AI & data analysis, and dissertation guidance suppor...
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USD 100/hr
MS in Electrical Engineering
Pakistan

I am a research consultant with a Master’s in Electrical Engineering, offering a strong blend of academic writing, technical research, and comp...

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USD 100/hr
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Priyanka S.

Neuroscience Scientist | Science communicator | Educator | Neurodevelopment & Mental Health
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USD 110/hr
Masters in Lifesciences
United States

I’m a Neuroscience Ph.D. candidate in UCLA’s Brain Connectivity and Cognition Lab with 4+ years of research across autism, ADHD, and anxiety. I...

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USD 110/hr
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Dr. Archana G.

End-to-End Research & Thesis Specialist | Statistics, Analytics & Responsible AI Integration
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USD 55/hr
Ph.D.
India

Ph.D. with 23+ years of academic and research leadership in Research Methodology, Data Analytics, and IT Management. I specialize in quantitati...

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USD 55/hr
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Jhoselinne Klaribel B.

GIS & Spatial Data Analysis Consultant | Disaster Risk & Environmental Modeling Specialist
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USD 31/hr
MASTER'S DEGREE IN RISK PREVENTION AND MANAGEMENT
Ecuador

I am a Geographic and Environmental Engineer with a Master’s degree in Disaster Risk Management, specialized in advanced GIS and spatial data a...

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USD 31/hr
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Agustín C.

R&D Engineer for Medical Devices | AI & Machine Learning Engineer specializing in biomedical signal processing
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USD 25/hr
Master in Artificial Intelligence
Spain

I am a Biomedical Engineer and AI Master's student at UPC with 3+ years of hands-on experience applying machine learning and data science t...

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USD 25/hr
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Denis D.

Physics researcher at NeuroPhysics lab, specializing in statistical modeling, complex systems, and scientific computing.
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USD 20/hr
Bachelors in Science (Physics)
Brazil

I am Denis Domeniconi Caprioti , a Physics Reasercher at the Federal University of Santa Catarina (UFSC) with a passion for decoding the "...

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USD 20/hr
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Simran S.

Scientific Programmer, Researcher, Modeling, Data analysis and Machine Learning for Earth Observation Application
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USD 50/hr
Master of Science in Geodetic Engineering
Austria

8+ years - Scientific Programming, Earth Observation applications, Software Development, Testing and Deployment

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USD 50/hr
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Santiago V.

Biotechnologist | Data Analyst in Training | Lab Quality & Experimental Data Management
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USD 16/hr
Licenciatura en biotecnología
Argentina

I'm a Biotechnologist from the National University of Córdoba (Argentina) with hands-on experience in laboratory quality control, expe...

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USD 16/hr
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XUETING Q.

Bioinformatics Scientist | NGS Pipeline Development, Pathogen Genomics, and Epidemiological Analysis
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USD 120/hr
PhD
United States

PhD-trained bioinformatician with 10+ years of experience in NGS data analysis, pipeline development, and pathogen genomics. ...Skilled in Nextflow, Python, R, SQL, SAS, and cloud/HPC deployment, with expertise across Illumina, Oxford...

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USD 120/hr
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Aditya S.

Computational Biology Research Analyst | Genomic Data Analysis & Molecular Modeling | Python & R
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USD 25/hr
B.Tech. Bioinformatics and Data Science
India

I am a Computational Biology graduate with research experience in genomic data analysis and molecular modeling. My background combines biologic...

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USD 25/hr
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Pooja M.

PhD in Computer Science | RnD Developer | Healthcare and Clinical | Research Mentor | Thesis & Academic Writing
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USD 50/hr
M.Tech
India

I am a Computer Science researcher with 7+ years of industry experience as an R&D Developer at Dassault Systèmes, working across Healt...

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USD 50/hr
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Dr. Sima S.

PhD Research Consultant | Environmental Data & Policy | Municipal Data Governance | GIS, Data Science, Mixed Methods...
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USD 100/hr
PhD
Canada

I am a PhD-level research consultant specializing in environmental data and policy, municipal data governance, climate/water policy, and GIS/da...

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USD 100/hr
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Anton S.

Product-Focused Engineer | Data Analyst | Business-Driven System | 5+ Exp
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USD 25/hr
Master's degree
Poland

I build scalable products by solving the right business problems, not just delivering features. 👉 My career began as an Upwork client a...

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USD 25/hr
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Mohil .

Agricultural Data Scientist Crop Modeling Statistical Analysis Python GIS
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USD 90/hr
PhD in Agricultural Sciences (Crop Modeling)
Canada

Agricultural data scientist with a PhD in crop modeling and more than 10 years of experience in agricultural data analysis and research. Exper...

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USD 90/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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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.

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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.

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Contact experts directly

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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

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Post your Project (Free)

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Get Quotes & Choose Experts

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

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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.