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Top Freelance Java Experts for Hire

Lakshmi Preethi K.

Freelance Data Analyst | Python & Data Scientist | 10+ yrs exp | Grant Writing & Research | MS in Computer Scien...
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USD 45/hr
Masters in Computer Science
Canada

Research-driven Analyst and Certified Data Scientist (Azure) with extensive experience securing multiple grants and scholarships, including NSE...

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USD 45/hr
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Enembe V.

Data Science & Analyst Professional | 4+ Years’ Experience | Skilled in Python, ML & Insight-Driven Analytics
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USD 30/hr
B.S. in Computer Science
United Arab Emirates

Data Scientist & Analyst with 4+ years of experience in leveraging data to drive business insights and strategic decisions. Proficient in P...

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USD 30/hr
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Daniel D.

PhD in Medicine/Neurology and MSc in Computer Science from PUCRS, with 25+ years of cross‑sector expertise in healthcare
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USD 100/hr
PHD
Brazil

Architect of AI at Graph Mind (https://graph.md) since 2013, delivering explainable AI, cognitive indexing, and knowledge graph solutions acros...

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USD 100/hr
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Dr. Huta B.

Ph.D. Data Scientist | Machine Learning| NLP, Predictive Modeling
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USD 100/hr
PhD - Physics
United States

As a Ph.D.-level Data Scientist with over 5 years of experience in cutting-edge AI/ML applications, I specialize in transforming complex datase...

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USD 100/hr
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Dr. Bobby R.

Single-cell & multi-omics bioinformatics consultant | Helping labs & biotechs turn messy data into publishable i...
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USD 50/hr
Computational Biology
India

Labs and biotechs generate elegant single-cell datasets but often get stuck on QC, integration and cell-type annotation, resulting in an ineffi...

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USD 50/hr
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Solange B.

Scientific Data Visualization Expert | Python Developer & Information Designer for Biotech/Tech
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USD 50/hr
Biomedical Engineering
France

I am an Engineer and Data Visualization Specialist bridging the gap between raw scientific data and clear, high-impact communication. I assist...Principal Investigators (PIs), Laboratories, and Biotech companies in translating complex datasets into publication-ready...

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USD 50/hr
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Dr. Ali Z.

Academic & AI Researcher
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PhD Computer Science
Pakistan

AI researcher with experience in AI-based research projects and peer-reviewed publications in deep learning for healthcare and graph-structured...

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Sabrina Alim D.

Research-Focused Data Analyst | Machine Learning, Dataset Development & Academic Writing | Undergraduate Teaching As...
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USD 20/hr
BSc in computer Science & Engineering
Bangladesh

Research Experience & Projects: 1.Developed a 32-class fish image dataset collected from Bangladeshi local markets for detection and class...

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USD 20/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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Taiga F.

IoT/Embedded System Engineer
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USD 70/hr
Bachelor of Engineering (Honours) Electrical and Electronics Engineering
Japan

I am IoT/Electronic & Electrical Engineer who have a strong expertise in MCU, Embedded System, PCB design, Hardware Prototyping. From conce...

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USD 70/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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Noah Y.

Lead Geographic Analyst & NASA Fellow (Duke MS) | Expert in GIS, Remote Sensing & AI Training (RLHF)
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USD 55/hr
PhD in Biology (incomplete)
United States

I am a Lead Geographic Analyst and former NASA Fellow (Duke University MS, William & Mary BS) with over 12 years of experience in geospatia...

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USD 55/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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RONNY K.

Computer Technology Student skilled in Cisco (Networking, Cybersecurity, AI) and Huawei (Cloud, Datacom) Technologies.
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USD 10/hr
Bsc Computer Technology
Kenya

Computer Technology Student skilled in Cisco (Networking, Cybersecurity, AI) and Huawei (Cloud, Datacom) Technologies.

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USD 10/hr
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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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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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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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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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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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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. Lokesh K.

Ph.D. Biotechnology Researcher Specializing in Computational Chemistry, Molecular Biology, and Drug Discovery
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USD 25/hr
Ph.D. Biotechnology
India

Biotechnology Scientist | Computational Drug Design | Omics Data Analysis | HPLC, LCMS & Molecular Biology Expert

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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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Kolabtree is the leading online marketplace for Java 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.

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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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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.

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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.