Alexander Nastasin

• Technological Revival: Spearheaded the transformation of a poorly managed MVP into a robust, maintainable platform, stabilizing key processes.
• Crisis Management: Led the emergency management of critical money distribution processes, mitigating potential catastrophic failures.
• Strategic Rebuild: Conducted an in-depth audit and implemented event storming sessions to align IT strategy with business goals.
• Event Sourcing: Implemented event sourcing for key subdomains, uncovering and rectifying significant data inconsistencies.
• System Optimization: Identified and disabled problematic modules temporarily to address data integrity issues and stabilize the platform.
• Monitoring System: Developed an omnipresent monitoring system integrating Grafana, Prometheus, Loki, and custom modules, ensuring end-to-end visibility.
• Scalability: Achieved horizontal scalability and implemented a robust asynchronous task system across multiple servers.
• Team Leadership: Reorganized the development team, introducing SCRUM methodologies and hiring key personnel.
• Engineering Practices: Championed CI/CD, infrastructure as code, automated testing, and zero downtime deployments.
• Business Process Automation: Developed features to reduce operational costs and enhance user engagement.
• Security and Integration: Implemented ACL for access control and integrated numerous third-party services.
• Core Achievements:
  • Stabilized platform with reduced bug incidence and fewer support requests.
  • Improved codebase and infrastructure capable of handling millions of euros in monthly transactions.
  • Designed a rich domain model on event sourcing capable of addressing complex business logic.

• Code quality audit and refactoring
• Automatic tests coverage
• Incident management and elimination

Stack: PHP, PostgreSQL, Mysql, Redis, Docker. Frameworks: Laravel

Responsibilities:

• Implementation of core business product - from hackathon scratch to production
• Responsibility for product full development lifecycle
• Build development team, tech-interviews, onboarding new developers
• Integrate engineering practices
• Mentoring, code reviews and coordinating teammates
• Developing solution architecture for specific business requirements
• Technical vision and expertise for a particular solutions
• Developing Backend API and integrations with other services

Achievements:

• Agile developed product what fulfil business and scalability requirements
• Team aligned to SCRUM/Kanban methodology
• Feature/unit backend tests (TDD)
• Continuous integration and delivery
• Zero downtime deployment on particular services
• Various complex integrations with key services, both internal and external
• Structured and documented API's autogenerated from code annotations
• And other engineering practises that have improved team performance

Stack: Nodejs, PHP, PostgreSQL, Redis, Docker. Frameworks: Laravel, React

Responsibilities:

• Full stack development and maintenance of P2P lending platform
• Development with strict requirements of fintech
• Team work using best practices and approaches like scrum/usual and small releases

Achievements:

• Implemented feature/unit testing and covered important application parts
• Refactored components using OOP design patterns helped to speed up development processes and increased code quality
• Developed components increased speed of data processing and business processes

Stack: PHP, MariaDB, JS, beanstalkd, Redis, Docker. Frameworks: Laravel, VueJs

Responsibilities:

• Full stack development of company's ERP system and integrations
• Integration of various external services like CargoSignal with company's ERP system
• Developing API's to bridge company ERP and bookkeeping software services
• Working with a multidisciplinary team to convert business needs into technical specifications

Achievements:

• Successful integrations like CargoSignal helped company to gain such customers like Amazon, Ikea, Expeditors
• API with reports for bookkeeping service (truck distance per day/country) helped to work legally in EU countries for company
• Developed and maintained products like Transport Management System helped to reduce costs and efficiently manage and scale business

Stack: PHP, MariaDB, JS, Docker. Frameworks: Lumen, React with Redux

Responsibilities:

• Designing and developing web applications using PHP frameworks and AWS infrastructure
• Pay per View video and live stream web application development and maintenance
• Developing compatible user interface functionality using jQuery, TW bootstrap & other libraries
• Developing admin management system

Achievements:

• Build from scratch educational Pay per View system with AWS infrastructure.
• FirstData payment processor integration with web app and with bookkeeping soft helped to reduce costs and optimize inner processes
• Successful monetization of PPV became a new profitable and sustainable direction for the business
• Build live-streaming solution with various features like adaptive quality/bitrate, live chat for users.

Tech Stack: PHP, MariaDB, JS| Nginx, AWS EC2, Adobe media server, S3, Cloudfront cdn