I build custom web applications that solve real business problems -- admin panels, dashboards, APIs, e-commerce platforms, and internal tools. Built with Django, designed to scale, delivered on a fixed budget.
Off-the-shelf solutions work until they do not. WordPress, Shopify, and no-code tools are great starting points, but every growing business eventually hits their limits. You need a feature they do not support. You need performance they cannot deliver. You need an integration they do not offer. That is when custom development becomes the obvious choice.
A custom web application fits your exact business workflow. No workarounds, no plugins that break on updates, no monthly fees for features you do not use. You own the code, you control the roadmap, and you scale on your terms.
I am Kirill Strelnikov, a freelance Django developer based in Barcelona. I have built 15+ web applications for businesses across Europe -- from SaaS platforms and e-commerce stores to real estate portals and internal management tools. My stack is Django, PostgreSQL, Redis, and Docker -- battle-tested technology that powers some of the world's largest web applications.
Data visualization, role-based access control, reporting and analytics, content management, user management. Turn your business data into actionable insights with a custom dashboard built for your specific KPIs.
E-commerce stores, marketplaces, booking and reservation systems, customer portals, membership platforms. Built to handle real traffic with fast page loads, SEO optimization, and mobile-responsive design.
CRM extensions, inventory management systems, REST APIs for mobile apps, workflow management tools, document processing systems. Replace spreadsheets and manual processes with proper software.
For SaaS-specific development with subscription billing and multi-tenancy, see my SaaS MVP development service.
I use a monolith-first approach with Django. This means faster development, simpler deployment, and lower costs compared to microservice architectures -- without sacrificing scalability.
Backend: Django provides authentication, admin panel, ORM, form handling, and security out of the box. Django REST Framework exposes clean APIs. PostgreSQL handles complex queries and full-text search. Redis powers caching and sessions.
Frontend: For most business applications, server-rendered templates with HTMX deliver the best balance of interactivity and development speed. Tailwind CSS for styling, Alpine.js for lightweight client-side logic. No heavy JavaScript frameworks unless the project genuinely requires them.
Infrastructure: Docker for consistent deployments. Nginx as reverse proxy. Celery for background tasks. CI/CD pipelines for automated testing and deployment. Hosting on DigitalOcean or AWS.
I analyze your business needs, define the feature set, and design the database schema and application architecture. This phase produces wireframes, a technical specification, and a fixed-price estimate. Takes 3-5 days.
I design the data models, set up the Django project, and build a working prototype with core functionality. You can interact with the admin panel and see the data structure within the first week.
I build features in priority order with weekly demos. You see working software every week, test it with real data, and provide feedback. Each sprint delivers usable functionality, not just backend code.
Automated tests for critical paths, performance optimization (database queries, caching, page load speed), security audit (OWASP top 10), and cross-browser testing. The app must be fast, secure, and reliable.
Server setup, Docker deployment, SSL, monitoring, and automated backups. I provide documentation, admin training for your team, and 30 days of post-launch support. You own the code and infrastructure.
Built a multi-tenant SaaS platform with shift management, employee roles, automated payroll calculations, and detailed reports. Manager dashboards and employee portals. The system serves multiple cafes in Barcelona, cut operational costs, and eliminated calculation errors.
Custom Django e-commerce platform with product catalog, image galleries, user accounts, shopping cart, wishlist, loyalty points system, weekly drop scheduling, and live purchase notifications. Built from scratch to match the brand's unique shopping experience.
Django platform with automatic synchronization from external data sources, advanced search filters, and SEO-optimized URL structure. Automated publishing reduced time costs dramatically and increased organic traffic through structured data and clean architecture.
If your business needs software that does exactly what you need -- no more, no less -- custom development is the answer. Book a free consultation to discuss your project.
Transparent pricing based on project scope. All prices include development, testing, deployment, documentation, and 30 days of post-launch support. You own the code.
Need a custom scope? Get in touch for a tailored proposal within 24 hours.
Kirill Strelnikov is a freelance Python and Django developer based in Barcelona, Spain. He has built 15+ custom web applications for clients across Europe, including SaaS platforms, e-commerce stores, real estate portals, and business management tools. His core stack is Django, PostgreSQL, Redis, Celery, and Docker.
He works with fixed-price contracts. Communication in English, Spanish, and Russian.
Learn more on the about page or explore the full portfolio.
Tell Kirill about your project. He will analyze the requirements, propose an architecture, and give you a fixed price -- within 24 hours. Free consultation.
Book a free project consultation