I have a really nice work experience with these guys, they are passionate and they go through a lot to find the best solution, not only the easiest one. I joined them as consultant and we started to work by setting up Data Base Cluster at the very first steps and we have replaced whatever made a bottleneck for performance optimization. I remember that there was a difficulty with millions of records and aggregating them for every new exam by a single student and after a few quick talks, they implemented the best possible solution by a binary tree database which is privately implemented.I'm glad to be a part of this company and we are in touch and in the peak times which is the student exam times, we are getting about millions of requests.

Rewriting the whole old fashion php site (joomla) to modern tech stack (Django RF + NextJS).I also implemented the migration plan for database, designed middle api for backward compatibility with the old application.Some in-app feature were: offline mode, secure downloads for subscribed members only, logging the read time in online and offline mode, dynamic configurations, secure otp logging as well as other parts.

The architecture was truly implemented in microservices and I don't expect that because 90% of the companies which call themselves micro-service oriented are bluffing! but Azpezeshk is NOT and it is micro-service-oriented parts that work together as a ONE-HAND.I just found Kraken helpful and life-changing!We created a lot of tools, including:- webrtc using bare stun/turn- ci/cd using pipelines in GitLab- staging/production environmentsAnd bare in mind that it's completely dockerized!I wasn't a backend developer, But I learned a lot about the backend in this loving company.

Containerization,Creating CI/CD pipelines.Automate test environments.Fix Single Point of Failures in system architecture and deploys.Linux System Administration,Creating cdn.snappfood.irElasticSearch tunning for production and advertising campaigns.Monitoring from Infrastructure to Software metrics, by NetData, GrayLog, Prometheus, Percona, Grafana.

The project was XaminOS.Debian based operating system (server only) to develop and maintain for Iranians.I learned tones of interesting hacks in this organization.