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Top Freelance SQL Experts for Hire

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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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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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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Fernando R.

Statistical Consultant | Data Scientist | Research, Clinical & Survey Analysis (R / Python / SPSS)
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MBA
Brazil

I am a data scientist and statistical consultant specializing in applied statistical analysis for research and data-driven projects. My work f...

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Faith A.

Spatial Data Scientist & Remote sesnisng Expert | 5+ years of experience in GIS research
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USD 50/hr
Bsc in GIS and remote sensing
Ghana

I am a spatial data scientist and consultant with experience supporting international research institutions and NGOs in fields such as biodiver...

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USD 50/hr
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Dr. Kimberley Z.

Physician Scientist | Medical Writer | Clinical Research & Machine Learning in Healthcare | Manuscript Editing
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USD 70/hr
Masters of Science
United States

I am a physician and clinical researcher with expertise in medical writing, scientific editing, and health data analytics. I hold an MD and an ...

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USD 70/hr
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Arnault G.

Applied-research scientist with 9+ years designing and stress-testing production NLP/LLM systems.
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USD 150/hr
Masters of Science
United Kingdom

Applied-research scientist with 9+ years designing and stress-testing production NLP/LLM systems. I lead red-teaming, bias evaluation and safet...

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USD 150/hr
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Aria Z.

PhD Materials Scientist | Polymer Nanotechnology & Delivery Systems | Advanced Analytical Characterization
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USD 65/hr
Ph.D.
United States

PhD Materials Scientist specializing in organic synthesis, thin film systems, and formulation optimization. Skilled in advanced...analytical characterization and in communicating technical findings through grant proposals, research publications...

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USD 65/hr
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Salma K.

Fresh Data Scientist
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USD 8/hr
Bachelor of Applied Science
Egypt

I am a computer engineering graduate, who is passionate about problem solving using artificial intelligence. I have worked on different AI proj...

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USD 8/hr
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Md. Sabbir A.

Data Science, HCI & Responsible AI Researcher | Research & Publication Consultant
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USD 75/hr
Master of Science in Computer Science and Engineering
Australia

I am a Senior Lecturer in Computer Science and a researcher in Data Science, HCI, and...Responsible AI, with strong expertise in Quantitative Research Methods, Machine Learning, and Research Publication...

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USD 75/hr
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Yuncheng J.

Freelance Quantitative Methodologist & Statistical Diagnostician | R, Bayesian & Predictive Modeling | Biostatis...
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USD 40/hr
Master in Public Health
Thailand

I am a quantitative methodologist, active peer reviewer, and researcher with an academic background in Public Health and Agronomy. I specialise...

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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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Muhammad H.

NLP Behavioural Interventionist | Behavioral Data Analyst | Psychology & Data-Driven Insights | Bridging Human Behav...
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USD 25/hr
BS Psychology
Pakistan

visionary problem-solver with a unique knack for understanding how people truly tick, and how that shapes business success. My varied journey h...

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USD 25/hr
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Olawale T.

Freelance Computer Science Researcher | Local Optimization and MILP expert | Recent Background in Finance
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USD 50/hr
PHD
United Kingdom

PhD in combinatorial optimization techniques. Worked on generic optimization solver. Recently worked on software related to risk management at ...

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USD 50/hr
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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. Aurora C.

Bioinformatics & aDNA Specialist | PhD in Molecular Biology | Expert in Snakemake Pipelines & Population Genetic...
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USD 45/hr
Doctorate
Spain

I am a PhD-trained molecular biologist with over 6 years of postdoctoral experience in bioinformatics, specializing in ancient DNA (aDNA), popu...

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USD 45/hr
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Mostafa D.

Cross-Industry Systems Architect | $500M+ Delivered Value | I Turn Complex Problems Into Working Solutions
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USD 40/hr
Software engineering
United States

You have a problem that's stuck. Maybe it's: +Research that's theoretically sound but practically impossible to execute at scale +A...

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USD 40/hr
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Dr. Andrea C.

Bioinformatics & Software Engineering Consultant | RNA & Cancer Genomics | NGS Pipelines | Structural Biology &a...
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USD 50/hr
Master's degree
Italy

I provide advanced bioinformatics and software engineering solutions in RNA and protein structure modeling, cancer genomics, and next-generatio...

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USD 50/hr
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Daniel S.

Data Scientist & Engineer | Python Developer | Multidisciplinary STEM & Finance Expert
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USD 15/hr
BSc Energy and Environmental Engineering
Kenya

I am a Data Scientist and Engineer with a multidisciplinary background bridging mechanical/electrical engineering physics, machine learning, an...

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USD 15/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 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.

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Post your Project (Free)

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

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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.

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.