I write technical content for B2B SaaS companies. I also write the code.
I build the demo app, hit the errors, test the edge cases, then write the tutorial. Companies like LogRocket, Permify, Decodo, and Refine hire me to do this on repeat.
Fimber Elemuwa
Technical Content Writer
I studied Medical Microbiology at the University of Port Harcourt. Yeah, microbiology. Somewhere between bacterial gene expression and building side projects in React, I figured out I was better at explaining technical systems than most people who build them.
I started freelancing in 2022. Within 8 months I went from “I think I want to write” to paid contracts with LogRocket, SitePoint, and In Plain English. Two years later I was writing RBAC implementation guides for Permify, scraping infrastructure docs for Decodo, and running content programs across saas.group's entire portfolio.
I've published over 100 technical articles. I've managed a developer publication with 50,000+ readers. I've built content systems that drove 35% organic growth for a web scraping API and landed #1 on Google for authorization topics.
I still code most days. That's the part that matters.
years writing for developer audiences
clients across B2B SaaS and devtools
articles published and ranking
contract renewal rate
What I Do
Technical Tutorials & Guides
I write long-form tutorials that start with a working repo and end with a shipped feature. I write the code, run it, break it on purpose, then walk the reader through the fix. That process is why 40+ of my guides are still live on LogRocket and why developers keep coming back to them. Topics I go deep on: React architecture, TypeScript patterns, RBAC policy design, web scraping infrastructure, and frontend performance.
Proof
40+ guides on LogRocket · RBAC series for Permify · Scraping tutorials for Decodo
Developer Documentation & APIs
API references, SDK quickstarts, and full doc sites on Mintlify or Docusaurus. I don't write endpoint specs from a Notion doc someone forwarded me. I test the API, read the response objects, and write docs that reflect what the developer will actually encounter. I've shipped a complete Mintlify documentation portal from scratch. You can browse it live.
Proof
Live Mintlify docs portfolio Browse the live docs →
Product-Led Content
Here's how this works. I build a barebones app with standard open-source tools. I show where it cracks under real conditions. Then I introduce your SDK as the fix, with the exact code to prove it. The reader learns something useful. Your signup rate goes up. I did this for Permify (25% traffic lift) and Scrape.do (~35% organic growth).
Proof
Permify content program · Scrape.do developer tutorials
SEO & Content Strategy
I don't bolt SEO onto finished drafts. I build it into the content architecture from the outline stage: keyword research, topic clustering, competitive gap analysis, editorial calendars. Then I measure what actually ranks and adjust.
Proof
Refine SEO overhaul · saas.group content architecture
Editorial Management
I ran the editorial side of In Plain English, a developer publication with 50,000+ readers. Screened submissions, set code standards, coordinated contributors, formatted newsletters. If you need someone who can manage the whole content operation and write for it too, I've done that.
Proof
In Plain English (50k+ readers managed)
How I Grew Scrape.do's Organic Traffic by ~35%
Scrape.do needed developer-focused content to rank for competitive web scraping keywords. Big players dominated the search results. Their blog was thin.
I wrote SDK guides, integration tutorials, and deep technical pieces on anti-bot bypass, proxy rotation, TLS fingerprinting, and dynamic content handling. Every article included working code samples that developers could actually run.
Result: organic traffic grew approximately 35%. Several target keywords hit the top 3 on Google. The content still ranks.
Selected Work
Want the full list? Email me.
2025 Live Developer Documentation Portfolio (Mintlify)
2024 Web Scraping API Docs & Developer Tutorials
2024 Agency Technical Content for DevTools & SaaS Clients
2024 Agency Technical Content & Documentation Programs
Aug 2024 B2B Technical Scraping Tutorials & SDK Guides
Aug 2024 Fine-grained Authorization & RBAC Policy Guides
Dec 2022 SEO Strategy & Developer Content Overhaul
Jun 2022 Frontend Architecture & Modern Dev Tooling Guides
Apr 2023 Publication Oversight & Editorial Direction
Oct 2023 Product-Led Content Campaigns Across Brands
Experience
Four years writing for developer audiences across authorization, web scraping, frontend architecture, and SaaS content programs.
AgencyHackmamba
Technical content agency partner—writing developer tutorials, product documentation, and editorial programs for B2B SaaS and devtool clients, including Mintlify-ready doc deliverables.
• Docs + tutorialsAgencyStudio1HQ
Contributing technical blogs, API guides, and DevRel-aligned content for devtools and SaaS brands through Studio1’s agency model—coders who write, writers who code.
• Technical contentScrapingDecodo
Authoring technical content for Decodo’s web scraping platform (formerly Smartproxy)—API tutorials, integration walkthroughs, and developer education on proxies, anti-bot bypass, and data extraction.
• API + scraping guidesScrape.do
Building SDK guides, integration docs, and deep tutorials on scraping infrastructure—pairing product documentation with SEO-driven developer education.
• ~35% organic growthPermify
Authoring core guides, API-adjacent policy docs, use cases, and technical comparisons for fine-grained authorization, RBAC/ABAC models, and policy languages.
• 25% traffic liftsaas.group
Designing product-led content architectures, developer documentation standards, and SEO-optimised editorial across portfolio brands to acquire technical users.
• Docs + full-funnel strategyIn Plain English
Served as Publication Manager. Screened tutorial submissions, formatted code standards, and coordinated newsletters to 50k+ technical readers.
• 50k+ readers managedLogRocket
Writing rich tutorials and structured how-to documentation on React, TypeScript, and web performance—content read by tens of thousands of developers monthly.
• 40+ technical guidesRefine
Restructured key landing page copy, optimized tutorial frameworks, and resolved key technical SEO issues regarding code indexing.
• 20% traffic + 60% engagementWhat Clients Say
"Working with Fimber over the past couple of years has been an absolute pleasure. He fact-checks every claim, tailors his writing perfectly to the developer audience, and always meets deadlines."
Raisa Yogiaman
Content Marketer, saas.group
"He takes initiative, researches complicated subject matters deeply, and consistently delivers exceptionally high-quality work — no matter the complexity of the technical topics."
Shannon Kelly Ash
Head of Content Marketing, saas.group
"Fimber has a rare superpower: he is able to grasp highly complex cloud and system concepts and explain them in a way that is easy-to-understand, engaging, and authoritative."
Sunil Sandhu
CEO, In Plain English
Want to work together?
I take on 2–3 content contracts at a time. If you need technical tutorials, developer docs, or a full content program for your SaaS product, reach out. I'll get back to you within 24 hours.