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Top Freelance SQL Experts for Hire

Dr. Amine M.

I am an academic, a researcher, a computer scientist, an entrepreneur, and an educator. I prefer the latter.
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USD 25/hr
Ph.D. in Computer Science
Algeria

I am an academic, researcher, computer scientist, and entrepreneur with a robust educational background and extensive experience across academi...

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USD 25/hr
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Diana S.

Geoscience Data Analyst | Asbestos & Environmental Data | Python & AI Extraction
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USD 25/hr
Attestation of College Studies AEC in Artificial Intelligence and Machine Learning
Canada

I am a Geologist and Laboratory & Data Analyst with experience in environmental analysis and geoscience data. Currently, I analyze asbest...

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USD 25/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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Andrew L.

Full-Stack AI Engineer | LLM & GenAI Specialist | GPT/RAG Integration | Scalable AI Solutions for Real-World Impa...
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USD 40/hr
Masters of Science
United States

I am an AI Engineer and Full-Stack Machine Learning Specialist with over 10 years of experience building and deploying end-to-end AI systems in...

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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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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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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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Dr. Tanise B.

Data Scientist | PhD in Economics | Antitrust & Competition Policy | Python, R, SQL
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USD 50/hr
PhD in Economics
Brazil

I'm a data scientist with a PhD in Economics and 10 years of experience in the Brazilian public sector, specializing in antitrust enforceme...

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USD 50/hr
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Jérémy M.

Bioinformatician & Data Engineer | 5+ Yrs in Biology Industry | NGS Data Analysis & Pipeline Development (Python...
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USD 115/hr
MSc Bioinformatics and System Biology
France

BRIDGING COMPUTATIONAL BIOLOGY & SCALABLE DATA ENGINEERING I am a Bioinformatician & Data Engineer (5+ years exp.) specializing in the...

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USD 115/hr
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Anupam N.

Freelance Data Scientist, Data Analyst & Poet | Expert in Python, SQL,STATA, SPSS, EViews, Excel
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USD 13/hr
PhD
India

Data Scientist with ~4 years of experience building statistical and machine learning models for banking, analytics, and business decision syste...

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USD 13/hr
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Adil H.

Clinical Data Scientist | RWE · ML · Survival Analysis · NGS Bioinformatics · GCP | Q1 Publi...
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USD 30/hr
Master of Engineering in Bioinformatics
Spain

Clinical Data Scientist specialising in Real World Evidence (RWE) and machine learning applied to clinical data. I work with real-world Electro...

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USD 30/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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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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Zahid A.

Economist. Data Analyst. International Trade and Customs Expert.
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USD 30/hr
International Economics in the age of Globalization
Pakistan

I am an economist and data analyst with specialized expertise in international trade and customs. My work sits at the intersection of economic ...

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USD 30/hr
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Dr. Subrata S.

Materials Scientist & Data Analyst | Expert in EIS | Numerical Simulation | Data Visualization
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USD 50/hr
Ph.D.
United States

PhD‑trained materials scientist with 12+ years of research experience spanning device physics, electrochemical systems, and energy‑related mate...

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USD 50/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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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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David K.

Environmental Data Scientist | Advanced R Programming, Statistics & Literature Reviews
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USD 60/hr
MPhil Environmental Science
Australia

I'm David, an Environmental Data Scientist and Literature Review Specialist with over six years of experience in both academic research and...

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USD 60/hr
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Dr. Lida A.

Data Scientist (Math PhD) | Building NLP, RAG, and Mathematical Modeling for Human-Centered Research
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USD 175/hr
Mathematics
United States

I am a PhD Mathematician and Data Scientist currently working on computational phenomenology and neuroimaging analysis. My work focuses on the ...

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USD 175/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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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. Juan D.

Medical Data Scientist and Engineer| Clinical trials, Preclinical studies, Oncology, Cardiology, Big Data, Google Cloud
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USD 300/hr
Doctor of Philosophy
United Kingdom

I specialise in computational approaches to uncover insights from large mobile health datasets for cardiovascular risk assessment. I am also in...

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USD 300/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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Yusuf U.

AI-Driven Cybersecurity Researcher | Adversarial ML · LLM Security · Penetration Testing | IEEE Author · ...
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USD 55/hr
Master in Cybersecurity
United States

I am a cybersecurity researcher and PhD candidate specializing in AI-driven threat detection, adversarial machine learning, and LLM security. M...

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USD 55/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.