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Top Freelance Sustainable Development Experts for Hire

Dr. Mikelis D.

Dr.sc.ing in environmental engineering. Multiple years in project proposal evaluation (incl. Horizon) and preparation.
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USD 50/hr
Doctor degree in Environmental Engineering
Latvia

Skills: - Project Proposal Preparation/Consulting - Technical/Analytical Writing - Energy Sector Research & Analysis - Energy Efficiency C...

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USD 50/hr
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Khalil A.

Medical & Scientific Writer | Health Economics, HTA & Medication-Safety Analytics | Six Sigma|CMgr · DBA Ca...
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USD 400/hr
Doctoral Candidate
Saudi Arabia

Biomedical engineer and doctoral researcher (DBA) specializing in AI-enabled health technology assessment

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USD 400/hr
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R. M.

Economic Researcher | Sovereign Risk & Climate‑Finance Specialist | Economist Published in Leading Peer‑Reviewed Jou...
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USD 65/hr
Master's Degree
France

Economist and published researcher specialising in sovereign risk, climate‑related fiscal resilience, catastrophe bonds, and macro‑financial po...

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USD 65/hr
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IRFAN N.

Transportation Energy Transition Consultant | Academic Researcher | Maritime Decarbonization & Just Transition | Ana...
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USD 55/hr
MBA in International Business
Sri Lanka

I am a Shipping and Logistics professional with over 12 years of experience in freight forwarding, liner operations, NVOCC management, and inte...

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USD 55/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. Zahid B.

PhD Research Scholar | Academic Writer | Statistical Consultant | Sustainability, Finance & Management Research Expe...
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USD 40/hr
MCOM 18 years (Finance) Research based
Pakistan

I am a PhD Research Scholar at Hailey College of Commerce, University of the Punjab, Lahore, with over 15 years of experience in academic and r...

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USD 40/hr
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Dr. Sobhan N.

PhD | Energy Systems · Machine Learning · Sustainability & Decarbonization Analytics
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USD 100/hr
PhD
United Kingdom

I am a Ph.D.-qualified researcher and scientific consultant with 10+ years of experience at the intersection of energy systems, machine learnin...

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USD 100/hr
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Dr. Dr Kris A.

PhD level chemical engineer with full stack software development skills.
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USD 50/hr
PhD Chemical Engineering
United Kingdom

I have over 20 years of experience in the commercialisation of technologies in the petroleum and biofuels industries. For the past 7 years I ha...

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USD 50/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. Daba Geremew O.

PhD in Commerce & Management, Research Consultant, Journal Reviewer, and Finance Expert. Including IFRS, IPSAS
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USD 25/hr
PhD in Commerce and Management Studies
Ethiopia

I am a PhD-qualified researcher in Commerce and Management Studies with over 14 years of experience in teaching, research, academic consulting,...

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USD 25/hr
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Dr. Adam S.

PhD Academic Writer | Dissertations | Thesis | Research Papers | Researcher | Scientific Writer | Editor | Proofreader
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USD 8/hr
Doctor of Education (EdD)
India

Former university professor & PhD-qualified academic consultant with 12 years of experience delivering publication-ready dissertations, the...

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USD 8/hr
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Dr. EMMANUEL TAIWO O.

PhD Programme Evaluation Consultant | Monitoring, Evaluation & Learning (MEL) Specialist | Test Development, Psychom...
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USD 50/hr
PhD
Nigeria

I am a PhD-qualified Programme Evaluation Consultant, Monitoring, Evaluation and Learning (MEL) Specialist, and Mixed Methods Researcher with e...

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USD 50/hr
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Reddy Sai Srinivas K.

Senior Data Analyst & Technical Consultant | Advanced SQL, Python, ETL & Power BI
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USD 10/hr
Masters of Science
India

I am a Senior Data Analyst and Technical Consultant with over 5 years of experience architecting automated, scalable data infrastructure that c...

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USD 10/hr
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Aiman F.

Freelance Research writer | Expert in Qualitative interviews | systematic reviews with 7+ years of experience
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USD 30/hr
MSc
Pakistan

I hold an MSc in Psychology with expertise in psychological research, academic writing, qualitative interviews, thematic analysis, and systemat...

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USD 30/hr
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Dr. Gonzalo A.

PhD Chemical Engineer | Desalination, Green Hydrogen & Techno-Economic Analysis | 46 Publications
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USD 65/hr
PhD in Chemical Engineering
Chile

PhD Chemical Engineer with 10+ years in applied research and consulting, specializing in seawater reverse osmosis (SWRO) desalination and fouli...

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USD 65/hr
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Dr. Pete Poovanna T.

Researcher & Sustainability Strategist | Climate, Policy, Food Systems & Innovation
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USD 45/hr
Ph.D
Canada

I am a researcher and sustainability professional with experience working across climate, policy, innovation, and systems-level challenges. My ...

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USD 45/hr
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Dr. Johnson W.

Freelance Financial & Data Analyst | Budgeting & Forecasting | Business Intelligence | Excel & Power BI Expe...
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USD 15/hr
Bachelors
Kenya

I am a highly skilled Financial Analyst and Data Analyst with expertise in budgeting, forecasting, financial modeling, and business intelligenc...

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USD 15/hr
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Mohammed Tukur S.

PhD in Economics| Research Consultant | Monitoring & Evaluation Specialist
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USD 40/hr
MSc
Nigeria

I am a PhD Economist and Research Consultant with over 10 years of experience in quantitative research, monitoring and evaluation, econometric ...

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USD 40/hr
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Kolabtree is the leading online marketplace for Sustainable Development 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 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.