Top 3% on Upwork. Fractional CTO and Solution Architect helping startups and growing businesses launch SaaS products, fix stalled development, and automate operations at scale. 100+ products delivered | Companies we supported raised $14.5B+. US-based (San Francisco), full US-hours overlap. Expert in React, Node.js, Python, API integrations, workflow automation, and SaaS architecture.
Clients bring me in when they need to:
Launch a Web or Mobile MVP quickly, without technical guesswork
Fix slow, disorganized, or stalled development
Design scalable SaaS or marketplace architecture
Automate business workflows, integrations, or operations
Get hands-on technical leadership without a full-time CTO hire
I work with my team at Softermii, we build through APEX, our internal delivery system that validates product scope, architecture, and technical risk before heavy development starts. It structures the roadmap, breaks features into clear engineering tasks, and cuts costly rework, meaning faster launches and predictable timelines, without sacrificing code quality.
What I Can Help You Build
✔ SaaS Platforms & Web Applications (React, TypeScript, Node.js)
✔ Marketplace & Multi-Role Platforms
✔ Mobile Apps (iOS, Android, React Native)
✔ Business Process & Workflow Automation
✔ API Development & Third-Party Integrations (Stripe, CRM, ERP)
✔ Fractional CTO / Technical Leadership for Startups
Core Technologies
Web & Backend: JavaScript, TypeScript, React, Node.js, Python, .NET, REST APIs
Automation & Integration: API Integration, Workflow Automation, Stripe, Third-Party Systems
Mobile: iOS, Android, React Native
Architecture: SaaS Architecture, Marketplace Systems, Multi-Tenant Platforms
Industries
SaaS • FinTech • Healthcare • Real Estate • E-commerce
Client Feedback
"I would highly recommend Softermii for any programming needs. I am consistently impressed by the quality of the work and team effort brought forth by everyone that we've worked with." — VP of Product, Dollar Shave Club
"Softermii delivered the project on time and helped us launch a strong virtual platform that can compete with major solutions in the market." — Director General, Event10x
Viacheslav V. earns an estimated $6.1k/mo. That's 4.1× the typical freelancer and more than 99.65% of everyone we track.
When Clients Hire Me
You need a Fractional CTO to lead development, US-based and US-hours available
You want to launch a SaaS or Web/Mobile MVP quickly
Your current dev team is too slow or disorganized
You need business processes or integrations automated
You want scalable architecture designed right the first time
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
If you're building or scaling a SaaS platform, marketplace, or need hands-on technical leadership, let's talk.