Armin Shoeibi Email & Phone Number

Tehran

• Automated payment reconciliation across multiple data sources (SEP, Mellat Bank, Tara360, Ozone IPGs), reducing workload and double-checking for the financial department and call center agents.• Implemented refund processes across multiple IPGs (SEP, Mellat Bank, Tara360, Ozone) with a 99% success rate, ensuring no duplicate or faulty refunds, and enhancing reliability and customer trust.• Implemented a new, thread-safe wallet system across multiple pods, including seamless… Show more • Automated payment reconciliation across multiple data sources (SEP, Mellat Bank, Tara360, Ozone IPGs), reducing workload and double-checking for the financial department and call center agents.• Implemented refund processes across multiple IPGs (SEP, Mellat Bank, Tara360, Ozone) with a 99% success rate, ensuring no duplicate or faulty refunds, and enhancing reliability and customer trust.• Implemented a new, thread-safe wallet system across multiple pods, including seamless data migration from the old service, resulting in improved CSAT through enhanced security, reliability, and performance.• Enhanced shopping cart endpoints, and utilized memory cache to reduce both PostgreSQL hits and I/O, while addressing async-await issues to improve CPU usage during high-concurrency situations.• Transformed inventory systems with Spring Boot and Kafka Streams, utilizing compact topics to eliminate SQL server dependencies, resulting in a more efficient Event-Driven Architecture (EDA).• Led the successful implementation of a Kafka KRaft cluster in collaboration with the DevOps team, resulting in significantly improved performance and eliminating Zookeeper. Show less

Member of the .NET Foundation.

Tehran, Iran

• Built FIFA World Cup Qatar 2022 ticket and accommodation E-commerce API, leveraging Redis, RabbitMQ, and SQL Server, driving substantial revenue. (https://www.alibaba.ir/fifaworldcuphospitality)• Integrated Golang-based Insurance policy services as a new business line, connecting via gRPC and RabbitMQ with shared systems like Order Management and Notifications.• Created a B2B 'Gift Card' service, offering automatic coupons, wallet charging, and winning big contracts with major… Show more • Built FIFA World Cup Qatar 2022 ticket and accommodation E-commerce API, leveraging Redis, RabbitMQ, and SQL Server, driving substantial revenue. (https://www.alibaba.ir/fifaworldcuphospitality)• Integrated Golang-based Insurance policy services as a new business line, connecting via gRPC and RabbitMQ with shared systems like Order Management and Notifications.• Created a B2B 'Gift Card' service, offering automatic coupons, wallet charging, and winning big contracts with major companies.• Onboarded new developers, led code reviews, and conducted Git & GitLab workshops to enhance code quality and collaboration.• Overhauled the Order Management System (OMS), resolving complex circular dependencies and adopting built-in DI in ASP.NET Core resulting in more performance than Autofac library. Show less

• Developed a Wheel of Fortune API with a concurrency limiter, offering a fun way to spin the wheel and win coupons, resulting in a 20% boost in conversion rates.• Optimized the domestic flight team's anti-corruption layer, reducing dependency hell, and achieving 50% cost savings while facilitating easier onboarding.• Implemented async communication via RabbitMQ and Quorum queues for HA and replication, replacing ZeroMQ across 25+ projects, enhancing observability, and achieving… Show more • Developed a Wheel of Fortune API with a concurrency limiter, offering a fun way to spin the wheel and win coupons, resulting in a 20% boost in conversion rates.• Optimized the domestic flight team's anti-corruption layer, reducing dependency hell, and achieving 50% cost savings while facilitating easier onboarding.• Implemented async communication via RabbitMQ and Quorum queues for HA and replication, replacing ZeroMQ across 25+ projects, enhancing observability, and achieving 3x scalability improvement.• Modernized legacy .NET Framework systems, migrating to .NET 6, and optimizing with new language APIs. Implemented robust monitoring for improved maintainability, scalability, and performance.• Enhanced Dockerfiles and GitLab CI/CD pipelines, reducing build times by 50% through multi-stage builds, resulting in less waiting and increased daily productivity.• Converted simple Console apps into .NET Core Worker Services with generic hosting, Serilog, OpenTelemetry, and built-in dependency injection for reliability and reduced maintenance overhead.• Simplified development by purging dead, complex code from 25+ projects, enhancing quality with Analyzers, and cutting operation time by 30%.• Automated 'no-fee ticket cancellation' refund process across multiple airlines, boosting customer loyalty and reducing calls by 40%. Show less

Tehran Province, Iran

Refah is the largest chain store with more than 700 branches in Iran.• Developed and maintained scalable RESTful APIs using ASP.NET Core 2.1 and C#, providing seamless integration for mobile clients (iOS and Android) and powering the "MyRefah" application, which achieved over 500,000+ downloads and handled 1,000+ requests per second.• Designed and implemented basket and shopping list management, on-site order tracking, and customer club services.