Open to opportunities

Jeff Mwangi

@jeffmwangi1

Message

Experienced writer specializing in SEO-optimized content, technical writing, and editing.

United States

Message

What I'm looking for

I seek a writer role where I can produce SEO-driven content and technical documentation, collaborate with cross-functional teams, and contribute to measurable audience growth and high-quality research outputs.

I am an experienced writer with five years creating SEO-optimized content, technical documentation, and compelling copy for U.S. companies, nonprofits, and global clients. I have a proven record editing and proofreading complex academic and research materials, drafting grant proposals, and improving client engagement through focused digital strategy.

My background includes freelance work for platforms such as Upwork and HubSpot Partner projects, a remote contract as a copywriter with Blue Sky Digital Marketing, and technical writing and data annotation for AI projects with Appen and similar vendors. I prioritize clarity, accuracy, and collaboration, and I consistently deliver measurable improvements in online visibility and data quality.

Experience

Work history, roles, and key accomplishments

Current

Freelance Writer & Editor

Current

Upwork / Fiverr / Freelancer.com / ContentWriters.com / HubS

Jan 2021 - Present (5 years)

Produce SEO-optimized content and edit/proofread materials for U.S. and global clients, improving online visibility and engagement for companies and nonprofits.

Content Writing SEO Optimization Proofreading Grant writing Technical Writing Remote Collaboration

Copywriter & Proofreader

Blue Sky Digital Marketing

Mar 2023 - Sep 2024 (1 year 6 months)

Created copy and social media content for SMB clients and edited marketing materials, collaborating with SEO and design teams to increase client engagement by 35%.

Copywriting Proofreading Social Media Content Brand Voice

Technical Writer & Data Entry Assistant

Appen / Amazon Mechanical Turk / TELUS International

Jun 2020 - Dec 2022 (2 years 6 months)

Authored technical documentation and guidelines for AI projects and performed data entry, transcription, and QA, achieving over 98% accuracy in datasets and labeling.

Technical Writing Data Entry Transcription Quality Assurance Data Annotation Documentation