Rinat CTO

About

Hi, I'm Rinat. I'm a software architect, CTO, and hands-on engineer with over 15 years of experience building web platforms, SaaS products, internal business systems, and high-load services. Unlike many engineering managers who stopped coding years ago, I still design architecture, write production code, review pull requests, optimize databases, deploy infrastructure, and work directly with customers. I help startups and growing businesses build products that are scalable, maintainable, and ready for long-term growth. What I do Fractional CTO If you're building a startup but don't yet need a full-time CTO, I can help with: Product architecture Technology selection Development process Hiring engineers Team management Technical roadmap Infrastructure planning Security reviews Performance optimization Cost optimization Backend Development I build reliable backend systems using modern technologies. Primary stack: Rust (Actix Web) Java (Spring Boot) Node.js (NestJS, Express) PostgreSQL Redis Elasticsearch RabbitMQ Kafka Docker Kubernetes I have experience building: REST APIs Authentication systems Payment integrations Marketplace platforms SaaS applications Internal business systems CRM platforms Analytics systems High-load services Background workers Microservices Frontend Development Modern frontend development with: React Next.js TypeScript Tailwind CSS React Query Zustand shadcn/ui I focus on fast, responsive, SEO-friendly applications that provide an excellent user experience. Mobile Applications I can design and build mobile applications and backend APIs for Android and iOS projects, including authentication, payments, push notifications, synchronization, and cloud infrastructure. Cloud & DevOps I regularly work with: Docker Linux Nginx CI/CD GitHub Actions DigitalOcean AWS-compatible object storage PostgreSQL clusters Monitoring Backups CDN Reverse proxies I enjoy making deployments predictable, reliable, and easy to maintain. System Architecture One of my strongest skills is designing software architecture. I can help with: Marketplace platforms SaaS products Booking systems CRM systems Internal enterprise software Payment systems Search infrastructure Image storage Caching Event-driven systems API Gateway design Horizontal scaling High availability Every architecture is designed with future growth in mind rather than only solving today's problems. Industries I've worked on projects including: Professional services marketplaces FinTech Cryptocurrency VoIP and telecommunications Affiliate marketing Analytics platforms AI-powered products Educational platforms International SaaS businesses Technologies Rust • Java • Spring Boot • Node.js • TypeScript • React • Next.js • PostgreSQL • Redis • Elasticsearch • Docker • Kubernetes • Linux • Nginx • AWS • DigitalOcean • REST API • GraphQL • OAuth • JWT • CI/CD • Git • GitHub Actions Why clients work with me Strong engineering background CTO-level business thinking Hands-on development Clean architecture Excellent communication Fast problem solving Long-term technical vision Product-oriented mindset I enjoy working with founders, startups, and established companies that need someone who can both write production code and make strategic technical decisions. Whether you need a Fractional CTO, a backend architect, or a senior full-stack developer, I'd be happy to discuss your project.