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Top Freelance SQL Experts for Hire

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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Austin B.

Multifaceted Computational Scientist and Developer with 5 years of experience in analyzing and managing large databases
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USD 30/hr
Master's of Science, Atmospheric Physics
United States

• Authored a series of programs that analyzed over 200 million data entries of hourly temperature and humidity data from NOAA’s public database...

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USD 30/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. Murat T.

Seasoned data science & engineering professional with both academic and industrial/applied experience.
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USD 200/hr
Ph.D. - Computer Science
United States

I have a Ph.D. in Computer Science and a career dedicated to understanding and communicating the roles of disparate data sources in complex pro...

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USD 200/hr
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David K.

Data Labeling Specialist | Python | Computer Vision | Dataset QA & Annotation
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USD 18/hr
BA Psychology
Kenya

Detail-oriented data labeling specialist with experience annotating video and image datasets for computer vision and sports analytics pipelines...

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USD 18/hr
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Akshay K.

Senior Data Scientist | ML, GenAI & Aerospace Engineering Simulation Expert
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USD 15/hr
B.Tech - Mechanical Engineering
India

I am a Senior Data Scientist with 8+ years of experience across machine learning, generative AI, data engineering, and engineering simulations....

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USD 15/hr
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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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Monisha Priya T.

Data Scientist | Bioinformatics & Genomics Analyst | NGS | Metagenomics | Big Data | Data Analysis | Scientific Writ...
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USD 45/hr
MSc in Biotechnology (Integrated 5 years)
India

Bioinformatics and Microbial Genomics Specialist with over 4 years of experience in NGS data processing, metagenomics, and microbial genome ana...

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USD 45/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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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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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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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 safety and security of your payments and personal information and project details. Kolabtree’s T&C includes 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 arn’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 in case 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

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 arn’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
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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.