Hire the Best API Documentation Writers
in the United States

I work with clients, primarily software companies, to create clear, accurate, and maintainable documentation for customers, administrators, and internal teams. Whether you need a new knowledge base created, a user guide updated, a help system developed, or an existing documentation reorganized and modernized, I can help. During my 30-year career, I've developed documentation for clients in software, telecommunications, utilities, financial services, digital advertising, aviation, real estate, and manufacturing. * Create software, hardware, and business-process documentation for technical and non-technical audiences. * Partner directly with developers, engineers, product managers, and subject matter experts to transform complex technical information into clear, maintainable documentation. * Develop user guides, online help, knowledge bases, release notes, and installation and configuration guides. * Support software development by creating technical specifications, requirements documentation, use cases, and workflow documentation. * Plan, organize, migrate, and maintain documentation repositories, knowledge bases, and online help systems. * Implement structured authoring solutions using DITA XML and single-source publishing environments. * Work as an embedded member of Agile and Scrum development teams or as an independent documentation consultant. I enjoy working closely with clients to create documentation that is accurate, maintainable, and genuinely useful to its audience, and am can help if simply need a professional technical/business writer for a single project or an experienced documentation consultant to improve an existing documentation system,

I write and edit technical material that has to be right. I work AI-assisted and I'm explicit about it. Drafting is fast; the value I add is verification — catching the terminology errors, broken code samples and confident-sounding claims that AI-generated documentation is full of. I also review and constrain AI-generated code, which is the same skill pointed at a different artifact. Four decades in software — full-stack web, operating-system internals, device drivers, data communications — alongside a published Addison-Wesley book (Writing Windows Device Drivers, later licensed and translated into Russian), a feature in Microsoft Systems Journal on automated testing procedures, and week-long corporate seminars on IBM OS/2 application programming. In my last salaried role I built unit tests and security-vulnerability validation, introduced source-code review and component documentation, and wrote the coding standards — for the backend behind San Francisco Muni's real-time transit prediction. That background is what makes the verification possible — I can tell when a claim doesn't survive contact with the system being described. Services: software and developer documentation · user manuals and guides · API documentation · technical editing and review · academic and journal manuscript proofreading to style guidelines (AP, CMS, journal-specific) · factual verification and sourcing. I've also been editing Wikipedia for twenty years under the same username — 3,277 public, reviewable edits. Happy to point you at them. Fixed-price or hourly. I work to deliverables and deadlines rather than fixed weekly schedules.

Full stack developer and AI developer — I build SaaS platforms, APIs and AI automation that hold up in production. $2.7M+ earned on Upwork · 650+ projects · 305 reviews at 4.9 · Top Rated Plus · featured in an official Upwork Success Story. You need software that solves a real problem, built right the first time, by someone who understands your business and not just your stack. "I am a former CIO and CTO and have worked with hundreds of software engineers. Orest is one of the best in terms of raw talent, knowledge, efficiency, creativity, flexibility, communication and working relationship. I could not recommend him more highly." — client review, February 2026 I'm Orest — a full stack developer and founder of SoftDoes, a Kansas City-based team. I architect and lead every build personally; my team gives you agency capacity without agency overhead. Upwork wrote a feature on how we did it. What clients hire me for: • Web applications and SaaS platforms — React, Next.js, Node.js, TypeScript, Python, PostgreSQL and Supabase, with Stripe subscriptions, marketplaces and multi-tenant architecture • AI development — AI agents, chatbots and voice agents, LLM integration with OpenAI and Claude, RAG pipelines, and automation built into real workflows • Taking AI-built prototypes to production — your app started in Lovable, Bolt or Claude Code and now needs auth, security, payments and real infrastructure • API development and integration — REST and GraphQL, third-party integrations, webhooks, payment gateways, CRM and business system connections • Websites and e-commerce — WordPress, WooCommerce, Shopify, Webflow and custom builds, redesigns, migrations and performance work • Mobile apps — React Native for iOS and Android • Cloud and DevOps — AWS, GCP, Azure, Docker, CI/CD, and compliance-ready builds for healthcare (HIPAA) and fintech (PCI) Recent results: • A healthcare founder went from concept to a live, compliant product in under six weeks • A construction company replaced five fragmented tools with one custom operations platform • A fintech team cut onboarding time in half with an AI-assisted workflow built in a single sprint "Orest, Nazarii, and their team built our full AI-powered SaaS platform from scratch. Communicative and reliable, consistently delivering quality work on schedule. Already starting our next project together." — Will S., AI SMS platform, February 2026 I work best with companies big enough to need real software and clear-eyed enough to know that building it wrong the first time costs more than doing it right. If that's where you are, let's talk — or book a 30-minute consultation directly from this profile. 🇺🇸 U.S.-based. U.S.-led. Kansas City. Services: Web & Software Development — Full-stack development · Web application development · Custom software development · SaaS development · MVP and product development · Legacy platform modernization · Systems integration · Internal tools and admin panels · CRM and ERP builds AI Development — AI integration · AI agents · LLM integration (OpenAI, Claude) · RAG (Retrieval-Augmented Generation) · AI chatbots and voice agents · Document AI · Prompt engineering · AI-powered workflows · Machine learning Automation — Workflow and business process automation · n8n · Zapier · Make .com · GoHighLevel · CRM automation · Data extraction and web scraping · Onboarding automation · Reporting automation Websites & E-Commerce — WordPress development · WooCommerce · Shopify · Webflow · Squarespace · Wix · Framer · Web design · Website redesign and migration · Landing pages · Product configurators · Page speed and Core Web Vitals · SEO-friendly builds Mobile — React Native · iOS and Android apps · Expo · Capacitor · Mobile UI development Design — UI/UX design · Figma · SaaS dashboards · Wireframing and prototyping · Conversion rate optimization Stack — React · Next.js · Node.js · Python · Django · FastAPI · TypeScript · JavaScript · PHP · HTML · CSS · Tailwind · REST APIs · GraphQL · PostgreSQL · MySQL · MongoDB · Supabase Payments & Integrations — Stripe · Stripe Connect · PayPal · Plaid · Twilio · payment gateway integration · third-party API integration · webhooks Cloud & DevOps — AWS · Google Cloud · Microsoft Azure · Vercel · Docker · Terraform · CI/CD · infrastructure as code · monitoring and observability · hosting migration · scalability and performance Security & Compliance — HIPAA compliance and healthcare software · PCI and fintech software · SOC 2 readiness · security audits and hardening · role-based access control (RBAC) · compliance-ready systems

Offering expert writing services, on a diverse array of technical and non-technical topics, in a wide range of possible formats and styles. From user guides to articles and API's, your documents can be crafted for any audience, from the highly technical to the technology-averse. Your project benefits from over 25 years of writing experience bolstered by a strong background in software development, technical project management, and application design. Positions held include directing documentation development, designing and developing video games, leading large software development teams, and managing enterprise software projects. That includes extensive hands-on programming, writing code in a number of computer languages. Topical expertise includes the following. Computers and Software Topics Manuals and User Guides, Programming Languages, Software Development Practices, Agile, Scrum, Hiring Software Developers, IoT AI and Machine Learning Topics Neural Networks, Natural Language Processing, Python, Amazon Alexa Development, Machine Learning Techniques Other Topics Post-modernism in politics, Obsessive Compulsive Disorder, Nuclear Weapons Types and Design, Contact Center Technology in the enterprise, IVR design and implementation, and Technology Trends Technology familiarity - Javascript, C/C++, Python, C#, PHP, HTML, SQL, Web Services, REST, JIRA, Confluence, MS Project, among others.