Top Freelance SQL Experts for Hire

Josh F.

Data Science | Machine Learning | Uncertainty Quantification | Senior Research Engineer | Former NASA & U.S. Navy
Create Project
★★★★★
☆☆☆☆☆
USD 150/hr
Master of Science in Mechanical Engineering
United States

I deliver innovative skills and experience to generate tangible ROI—whether developing tailored machine learning systems, engineering deployed ...

★★★★★
☆☆☆☆☆
USD 150/hr
Contact3

Dr. Radhika H.

Genomic Scientist | PhD in Plant Biotechnology | Bioinformatics & NGS Specialist | AI-Driven Biology
Create Project
★★★★★
☆☆☆☆☆
PhD in Plant Biotechnology
India

Research Experience: Doctoral Research (2017-2023) Worked as Junior Research Fellow under the project entitled “Identification of bacterial bli...

★★★★★
☆☆☆☆☆
Contact3

Dr. Darlinton C.

R&D specialist with 15+ years of experience creating innovative software solutions
Create Project
★★★★★
☆☆☆☆☆
USD 128/hr
PhD Computer Science
Brazil

My work combines applied research, software engineering, and innovation, with a focus on transforming emerging technologies and research ideas ...

★★★★★
☆☆☆☆☆
USD 128/hr
Contact3

Nicolas P.

Freelance Bioinformatics MS student | Microbial Genomics | Python, Julia, R
Create Project
★★★★★
☆☆☆☆☆
Biotechnology
Brazil

Bioinformatics Master's student with main experience on agricultural microbial biotechnology.

★★★★★
☆☆☆☆☆
Contact3

Naveen J.

AI Hardware & VLSI Architect | PhD Researcher | 5 Yrs Exp (Verilog, MATLAB) | Low-Complexity DSP & Neural Nets
Create Project
★★★★★
☆☆☆☆☆
USD 20/hr
Master of Technology
India

I am a VLSI Architect and Researcher currently pursuing my PhD at NIT Calicut, specializing in VLSI architectures for Neural Networks. With 5 y...

★★★★★
☆☆☆☆☆
USD 20/hr
Contact3

Harish K.

Data Analyst | GHG & ESG Analytics | Python, SQL & Power BI | Geospatial & Remote Sensing
Create Project
★★★★★
☆☆☆☆☆
USD 29/hr
M.Sc.
India

I am a Data Analyst and GHG Research Modeller with expertise in data analytics, environmental data, GHG emissions analysis, ESG reporting, geos...

★★★★★
☆☆☆☆☆
USD 29/hr
Contact3

Abdullah A.

AI & ML Research Assistant | Computer Vision, Explainable AI & Full-Stack Developer
Create Project
★★★★★
☆☆☆☆☆
USD 30/hr
B.Sc
Bangladesh

AI & Machine Learning Research Assistant with experience developing deep learning models and publishing in peer-reviewed international jour...

★★★★★
☆☆☆☆☆
USD 30/hr
Contact3

Abraham K.

Epidemiology & Biostatistics Expert | R, Python, Survival Analysis & Health Data
Create Project
★★★★★
☆☆☆☆☆
USD 35/hr
Msc in Medicine (Medical Big Data)
South Korea

I am a public health researcher and health data analyst with training in epidemiology, medical big data, biostatistics, machine learning, nutri...

★★★★★
☆☆☆☆☆
USD 35/hr
Contact3

Riadh A.

Econometrician & Quantitative Research Consultant | Time Series, Financial Econometrics & R
Create Project
★★★★★
☆☆☆☆☆
USD 100/hr
PhD / Doctorate
Tunisia

Econometrics · R · Time Series Analysis · Financial Econometrics · Statistical Analysis · Data Analysis · Regress...

★★★★★
☆☆☆☆☆
USD 100/hr
Contact3

Musafar S.

AI Specialist & ML Engineer | Expert in Agentic AI & Automation
Create Project
★★★★★
☆☆☆☆☆
USD 20/hr
BS in Computer Science
Pakistan

AI Specialist with professional experience in machine learning, agentic AI, RAG systems, and automation. Skilled in Python, LangGraph, PyTorch,...

★★★★★
☆☆☆☆☆
USD 20/hr
Contact3

Dr. Dr Sagar C.

Dr Sagar Choudhary (Urban AI/Data Science/Citizen Science/Sensing)
Create Project
★★★★★
☆☆☆☆☆
USD 8/hr
PhD
India

PhD (CSE), JRF, Assistant Professor AI, Citizen Science, Urban Analytics, Digital Forensics

★★★★★
☆☆☆☆☆
USD 8/hr
Contact3

Peter L.

Statistician & Data Analyst | R, Python, Biostatistics & Quantitative Modeling
Create Project
★★★★★
☆☆☆☆☆
USD 30/hr
Masters of Science
United States

I help researchers and businesses turn complex datasets into clear, reproducible analyses. I hold an M.S. in Statistics and Data Science from t...

★★★★★
☆☆☆☆☆
USD 30/hr
Contact3

Dr. Hassna E.

Data Scientist & Machine Learning Engineer | NLP, Text Mining, Predictive Modeling & Time Series
Create Project
★★★★★
☆☆☆☆☆
Master's Degree in Applied Mathematics & Modelling
France

I am a Data Scientist and Machine Learning Engineer with a background in applied mathematics, statistics and research engineering. I work with ...

★★★★★
☆☆☆☆☆
Contact3

Celine S.

Data Analyst | Python, SQL, Data Cleaning & Visualization
Create Project
★★★★★
☆☆☆☆☆
USD 10/hr
Grade 12
Egypt

I am a high school student (Grade 12) with a strong passion for data analysis and a C1 English proficiency level. I hold a DECI Level 2 certifi...

★★★★★
☆☆☆☆☆
USD 10/hr
Contact3

Dr. Muhammad A.

Associate Professor of Software Engineering | Ph.D. in Applied Information Science | AI, Human-Robot Inter
Create Project
★★★★★
☆☆☆☆☆
USD 35/hr
M.S in Computer Science
Pakistan

Ph.D.-educated Computer Scientist, Academic Leader, and Senior Researcher with over two decades of combined industry and higher-education exper...

★★★★★
☆☆☆☆☆
USD 35/hr
Contact3

Francisco José D.

PhD Biologist | Literature Reviews · Academic Research · Scientific Writing · Market Studies
Create Project
★★★★★
☆☆☆☆☆
USD 45/hr
Licenciatura en Biología
Spain

I am a PhD Biologist with over 15 years of university teaching experience and a strong track record in scientific research, academic writing, a...

★★★★★
☆☆☆☆☆
USD 45/hr
Contact3

Jeffrey B.

Technical and Systems Architect, Translational Researcher - building science, stories, and systems.
Create Project
★★★★★
☆☆☆☆☆
USD 80/hr
Computer Science and Information Systems
United States

Senior Systems Architect and Software Engineer with 30+ years of experience designing, securing, and modernizing backend systems and cloud infr...

★★★★★
☆☆☆☆☆
USD 80/hr
Contact3

Ahmed Mostakim F.

AI Researcher | Deep Learning, Machine Learning, XAI, Statistical Analysis, Model Building | MSc CS.
Create Project
★★★★★
☆☆☆☆☆
USD 40/hr
Bachelors in Computer Science and Engineering
Bangladesh

I am an AI researcher and MSc Computer Science candidate at American International University-Bangladesh (AIUB), Bangladesh. I specialize in:...

★★★★★
☆☆☆☆☆
USD 40/hr
Contact3

Raj K.

Astrophysicist | AI/ML Engineer | Computer Vision, Data & ML Pipelines | Astrophysical Scientific & Medical Imag...
Create Project
★★★★★
☆☆☆☆☆
USD 25/hr
M.Sc. Physics (Specialization in Astrophysics)
India

AI/ML engineer experienced in ML pipelines, computer vision, medical imaging and scientific computing....I work with Python, PyTorch/TensorFlow, SQL, Docker and cloud workflows, covering data processing, model...

★★★★★
☆☆☆☆☆
USD 25/hr
Contact3

Dr. Mauro Andrés N.

Healthcare Data Scientist | Medical Doctor | PhD in Medical Imaging | AI & ML for Medicine | R&D
Create Project
★★★★★
☆☆☆☆☆
USD 100/hr
PhD
Argentina

Hi! I'm Mauro, a Medical Doctor and Senior Data Scientist working at the intersection of healthcare and AI. I recently co-founded Argentica...

★★★★★
☆☆☆☆☆
USD 100/hr
Contact3

Lauro Augusto J.

PhD-track Energy Systems Engineer | Hydrogen Production Modeling, Techno-Economic Analysis, Python
Create Project
★★★★★
☆☆☆☆☆
USD 50/hr
Engineering Doctorate
Netherlands

I'm a mechanical engineer with an Engineering Doctorate (EngD) from the University of Twente, with strong expertise in numerical simulation...

★★★★★
☆☆☆☆☆
USD 50/hr
Contact3

Catherine F.

Environmental Consultant | GIS & Data Analyst
Create Project
★★★★★
☆☆☆☆☆
USD 40/hr
United States

I am a wildlife biologist, GIS analyst, and environmental consultant with nearly 20 years of experience supporting government agencies, univers...

★★★★★
☆☆☆☆☆
USD 40/hr
Contact3

Asma Z.

PhD Student in AI (Medical Imaging) - Your Swiss Army Knife for Academic/Research Tasks!
Create Project
★★★★★
☆☆☆☆☆
USD 45/hr
MS in Data Science
Morocco

I’m a 4th year PhD candidate specializing in Artificial Intelligence for Medical Imaging, with a versatile skill set honed by the demanding wor...

★★★★★
☆☆☆☆☆
USD 45/hr
Contact3

Dr. Dr Sambhaji T.

Post-Doctoral Fellow CAU, Seoul South Korea / PDF AAU Anhui Hefei, China | Senior Bioinformatician | | Data Scientist
Create Project
★★★★★
☆☆☆☆☆
USD 100/hr
PhD
India

Ph.D.- Qualified Bioinformatician and Data Scientist with international Post-Doctoral Research experience in CAU, Seoul South Korea and AAU / ...

★★★★★
☆☆☆☆☆
USD 100/hr
Contact3

Dr. Jean Juste Harrisson B.

Biostatistician & Health Data Scientist | PhD Applied Mathematics | Survival & Longitudinal Analysis | R, Python
Create Project
★★★★★
☆☆☆☆☆
USD 50/hr
PhD
South Africa

I help research teams, companies and health organisations turn complicated health and population data into defensible statistical answers — and...

★★★★★
☆☆☆☆☆
USD 50/hr
Contact3

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.