Make a technical decisions and design a solutions for the new features of the Fin tech system.

Review the changes from the team.

Increase team productivity by creating the coding standards and making it more maintainable.

Detected implementation issues in revenue management software that decreased the performance of the P&L calculation by 34%.

Implemented new features in the client-funded project.

Managed to improve the API response time by 21% by implementing the cache and indexing database tables.

Optimized the database queries by changing the view queries, which decreased performance by 100x for some queries.

Helped the team with architectural decisions, which made software maintenance and implementation 2x easier.

Modified the architecture of a social network project.

Created an architecture for the Netflix-like system's recommendation engine.

Trained team members on microservices, monolithic and event-driven architecture patterns, DDD, caching, message queues/brokers, unit and integration testing, version controls, branching strategies, etc.

Created the architecture for the CRM system using the microservices pattern.

Worked on integrations with SAP BRIM, Joget, and Creatio systems.

Worked on notifications and announcements services, architecture, and flows.

Developed the website and service for a secure payment system for credit-card authorizations.

Developed the website to create credit-card authorizations using the CyberSource-hosted checkout service.

Implemented a feature to search for authorization using the Cybersource Transaction API.

Implemented a feature to settle the authorization using the Cybersource Simple Order API.

Enabled integration of the customer's existing database for data retrieval and processes.

Developed the website for public users to authorize payments requested by the Metal Service Center.

Implemented features for data encryption and decryption and used them to generate and send secure emails.

Increased the system uptime from 92.75% to 99.9% by implementing stabilization and monitoring plans.

Increased service uptime up to 99.95% by implementing zero-downtime deployment (ZDD).

Decreased post-release regression risk to less than 0.25% via end-to-end test suite planning and implementation.

Led and managed the AES engineering team, closely working with QA automation and manual QA teams.

Implemented monitoring for sensitive system parts to decrease SLA breach.

Decreased SLA breach via automated fixing scripts/tasks for known system failures.

Created system stabilization plan by doing detailed root-cause analysis for system outages, providing remediation and permanent fix steps.

Implemented an alerting system in a SharePoint-driven system.

Eliminated manual work by implementing auto-fix features in a product.

Implemented QA check features in the legacy product.

Automated the SaaS and billing teams' manual daily tasks.

Decreased SLA breaches by implementing a transaction reconciliation system.

Led and managed the IT and EDI operators' department.

Managed application development, QA, engineering, and design teams.

Determined strategic direction of product development for NY’s black car taxi industry, provided solutions for complex system issues, and made technological decisions/solutions.

Decreased product time-to-client by 25% as a result of implementing SOA.

Decreased expenditure of resources for deployment by 85% via automated CI/CD implementation.

Analyzed and fixed bugs on the existing .NET/MS SQL project.

Developed new features in the system for NY's black car taxi business.

Led and managed a team of eight engineers. Worked closely with the client to define the most effective development process.

Implemented a secure PCI DSS compatible payment system.

Decreased resource usage and costs by implementing an S3 archiving module.

Worked closely with the product team to create CI/CD pipelines for new features.