• The Largest Online Taxi Service Platform in Iran with over 3M taxi requests per day• Migrating different map services to OKD4.• Optimizing ETL processes in massive data pipeline (+10M/Day records) for different data sources using kafka-connect.• Improving cross-team data streaming by using Benthos streamer to stream data from Cassandra and MongoDB data sources that caused 20% faster streaming.• Unifying multiple data sources using Feast feature store to serve feature matrices for machine learning applications.• Refactoring Pythia data streaming service to reduce ETA and ATA computations.

• One of the biggest Map Platforms for Persian users with more than 5M users.• Developing and maintaining "Business-Service" with the purpose of maintaining and verifying of over 100k business POIs on the map.• Developing "Automatic-call" service to verify and collect data about business POIs located on the map.• Dividing a monolithic application (POI) to multiple micro-services using GRPC and Kafka for the communication between services.Unfortunately, Balad faced economic challenges and had to lay off 84% of its workforce, including myself. The startup later decided to shut down operations by the end of the Persian year. Despite these setbacks, my time at Balad was marked by significant growth and contributions to the company.

• The Largest online advertising company in Iran.• Developing and maintaining "Yektanet core" service which handles more than 10k requests per minute.• Developing "First Ads" service to act as a proxy interface service between Google-Ads GRPC services and end users.• Migrating our deployment to Kubernetes to improve the speed of our service.• Developing and maintaining the company's data warehouse (Takhlis) which provides storing and summarization functionalities of data for the other services.

• Online Spare-Part Store.• Designing the architecture for 7+ micro-services.• Developing, Supervising and coordinating Product, Inventory, Customer , Order-Management, Core, etc services.• Improving and diagnosing APIs due to scalability, performance and optimization issues.• Maintaining +8 Linux servers.• Interviewing 20+ developers and contributing to the general recruitment process.• Team lead of 2 teams, including 8+ developers and 7+ projects in total.• Mentoring junior software engineers.

• Developing different services for data accumulation from Persian web.• Customizing Mozilla Common Voice open-source project for the speech-to-text verification task.

• Developing different web applications using Django, Django Rest Framework.