Onyinyechi O.
ESG & Sustainability Consultant | Technical Writer |AI Data Annotation
I help businesses turn complex sustainability, energy and environmental requirements into practical strategies, clear analysis and deliverables they can actually use. I am a sustainability and environmental strategy professional with over 10 years of international experience across Canada, the UK, Europe and other global markets, spanning consulting and industry. I have worked with organisations across financial services, retail and government, including Deloitte, IKEA and UK Government clients. My work spans three areas: Sustainability, Energy & Environmental Advisory - Sustainability and ESG strategy, climate and carbon, Scope 1–3, Net Zero, energy and environmental management, regulatory readiness, GRC, audit and assurance, materiality, responsible sourcing, circular economy, sustainability reporting, B Corp certification and EcoVadis. Research & Technical Writing - Energy and environmental research, sustainability and regulatory analysis, technical reports, policy briefs, white papers, executive presentations and research-based content. AI & Expert Evaluation - AI prompt development, response evaluation, domain-specific testing, data annotation, quality assurance and expert review, particularly across sustainability, energy, environmental and business domains. Clients typically bring me in when they need to understand a complex requirement, assess their current position, develop a practical strategy, prepare for certification or assessment, strengthen governance and compliance, or turn technical information and data into a clear, decision-ready output. Having worked both in consulting at Deloitte and within organisations, I understand both the technical requirements and the practical realities of implementation. I focus on rigorous, practical work that helps clients make better decisions and move forward. If you have a sustainability, energy, environmental, GRC, certification, research or AI challenge, tell me what you are trying to achieve and I can help determine the right approach.
Earnings and projects
Last 6 months ÷ 6
Last 6 months: $1k
Billed in all: $1,341$1.3k
$337 in the last 6 months
Across 12 contracts
Earnings, last 30 days
Skill rankings: Top 19% in Academic Writing
Ranked by MRR among everyone on Upwork with the skill.
- #10Sustainable Product36 freelancers · 🇬🇧 #2Top 28%🇬🇧#2 of 4
- #17Personal Statement70 freelancers · 🇬🇧 #2Top 24%🇬🇧#2 of 5
- #33Corporate Social Responsibility120 freelancers · 🇬🇧 #4Top 28%🇬🇧#4 of 5
- #34Environmental, Social & Corporate Governance117 freelancers · 🇬🇧 #3Top 29%🇬🇧#3 of 5
- #34Greenhouse Software78 freelancers · 🇬🇧 #4Top 44%🇬🇧#4 of 4
- #119Sustainability478 freelancers · 🇬🇧 #15Top 25%🇬🇧#15 of 41
- #334Stakeholder Management948 freelancers · 🇬🇧 #20Top 35%🇬🇧#20 of 61
- #418Research & Development1,511 freelancers · 🇬🇧 #17Top 28%🇬🇧#17 of 58