СV Vadim Kalinin

Senior Full Stack Engineer Software Architect

Remote (Thailand / Global)

Email: vadimakalinin@gmail.com

LinkedIn: linkedin.com/in/vadim-kalinin-780a2913b

GitHub: github.com/KrasnayaRibka


SUMMARY

Senior Full Stack Engineer / Software Architect with 15+ years of experience designing, scaling, and operating production systems end-to-end.

Specialized in Python (Django, FastAPI) and JavaScript (Vue.js), with deep expertise in distributed systems, microservices architecture, and high-load backend design.

Track record of leading full system architecture, executing large-scale re-platforming (monolith → microservices), and delivering measurable performance and reliability improvements.

Leverages AI-assisted development to accelerate delivery while maintaining strict architectural integrity and code quality.


TECHNICAL SKILLS

Languages: Python, JavaScript, PHP

Backend: Django, FastAPI, REST APIs, Microservices, MVC

Frontend: Vue.js, Backbone.js, Marionette.js, HTML5, CSS3, Bootstrap

Architecture: System Design, Microservices Architecture, API Design, Scalable Systems

Tools: Docker, Git, RabbitMQ, Nginx

Infrastructure & DevOps: Linux server administration, Docker-based deployment, Nginx configuration, application hosting and scaling


PROFESSIONAL EXPERIENCE

Senior Full Stack Engineer (Freelance / Independent)

Remote 2008 – Present
  • Designed and delivered full-stack applications from scratch (architecture, backend, frontend, deployment)
  • Built microservices using FastAPI with asynchronous processing via RabbitMQ
  • Developed monolithic systems using Django with clean, maintainable architecture
  • Delivered production-ready systems independently, reducing need for larger engineering teams
  • Optimized development workflows using AI-assisted tools, significantly increasing productivity
  • Managed full software lifecycle: architecture → development → deployment → support

KEY PROJECTS

Photolab – Online Photo Processing & Printing Platform

  • Led architecture and development of a production photo processing platform over 10+ years (2012–2026)
  • Designed and built central authentication & payment system with public API for third-party integrations
  • Developed 4 client applications interacting with core backend
  • Architected initial PHP monolith and owned its evolution
  • Led full system re-architecture from monolith to microservices using Python (FastAPI)
  • Designed distributed architecture with dedicated services (image processing, auth, data layer)
  • Introduced asynchronous processing pipelines using RabbitMQ
  • Achieved 10x improvement in image processing throughput
  • Reduced system failure rate by 70%, significantly improving reliability and uptime
  • Owned full lifecycle: system design, implementation, deployment, and long-term stability

Tech: Python, FastAPI, PHP, RabbitMQ, Microservices, REST APIs, Docker


Image Processing Platform (Microservices)

  • Designed microservice architecture for high-load image processing system
  • Built backend services using FastAPI and RabbitMQ for asynchronous pipelines
  • Integrated with legacy PHP monolith
  • Automated image transformation, metadata extraction, and processing workflows

Tech: Python, FastAPI, RabbitMQ, Docker, PHP


Full Stack Web Application Platform

  • Developed scalable web platform using Django and Vue.js
  • Designed API-driven architecture with clear separation of concerns
  • Built responsive frontend and robust backend services

Tech: Django, Vue.js, REST APIs


CORE STRENGTHS

  • End-to-end system ownership
  • Strong architectural thinking
  • Ability to deliver complete products independently
  • High development velocity with strong quality control
  • Deep full stack expertise (backend + frontend)

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