Hire a SaaS Developer in Barcelona

About

Building a SaaS product in Barcelona? I am Kirill Strelnikov, a freelance SaaS developer based here. I specialize in building multi-tenant platforms with Django, PostgreSQL, and Stripe — from MVP to enterprise scale. I have delivered SaaS products for time-tracking, e-commerce, real estate, and AI platforms. My development process is structured: discovery, architecture, iterative development, launch, and ongoing support.

What I Build

• Multi-tenant SaaS architecture
• Subscription billing with Stripe
• Role-based access control
• Admin dashboards and analytics
• REST APIs for web and mobile
• Background processing (Celery, Redis)
• Docker deployment and monitoring

My tech stack: Python, Django, Django REST Framework, PostgreSQL, Redis, Celery, Docker, OpenAI API, LangChain, Telegram Bot API, Stripe, FastAPI, Nginx, Git, Linux.

How I Work

1. Product discovery — We define your core feature set, user personas, and pricing model. I help you cut scope to ship an MVP in 4–6 weeks, not 6 months.

2. Architecture blueprint — I design multi-tenant database schema, billing integration, and API structure. You approve the technical plan before development.

3. Two-week sprints — Each sprint ends with a deployable feature set. You test with real users early and pivot based on feedback, not assumptions.

4. Launch & scale — Production deployment with Docker, automated backups, and uptime monitoring. I stay on retainer to handle growth.

Learn more: SaaS Development Services

Why Work With Me

• 5+ SaaS products shipped — time-tracking, e-commerce, real estate, AI platforms. Not my first launch.
• Barcelona-based — face-to-face meetings available, plus access to the local startup ecosystem.
• Full billing stack — Stripe subscriptions, free trials, usage-based pricing, invoicing. Built and tested.
• Fixed pricing from €3,000 — MVP to production. No hourly rates, no runaway budgets.
• Post-MVP support — feature additions, performance tuning, and scaling as your user base grows.