Kamyar
Mirzavaziri Software Engineer
Summary
With 6 years of programming experience, including 3 years in software engineering for enterprise-level companies in E-commerce, EdTech, and Advertisement domains, I bring a deep proficiency in diverse range of technologies and domains. My journey, starting with the LEMP stack and evolving into microservices with Golang, K8s, and Kafka, has led me to my current role serving as an SRE for a company managing ~26K requests per second. Passionate about cutting-edge tech, I contribute to open source projects and my personal mini-projects in my free time.
Contact
Terminal
Education
M.Sc., Computer Science
B.Sc., Computer Science
Languages
English
Farsi
Work Experience
Software Engineer at Divar
Jul 2022 - Present (1 yr 7 mos)-
Took a major role in redesigning the Submit micro-service by Go/gRPC (from Python/REST), which led to
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higher developer productivity,
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99.9% up-time. (up from 99.84%),
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sub-100 ms response times (upper 99 percentile),
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average response size < 50 KiB (down from > 1 MiB),
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a notable reduction in call center load.
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Optimized the Post Stats micro-service architecture by shifting sync calls to async Kafka events, which led to
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higher fault tolerance, preventing data loss,
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200 requests per second (down from 7K), which led to 66% reduction in consumed resources (freed up 24 CPU cores and 120 GiB of memory).
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Reduced the average CI pipeline duration to < 2min (from > 5) in a monorepo by employing cache and following CI pipelines best practices, which led to significantly elevating overall developer productivity across the organization.
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Served as the maintainer of Post View micro-service, with the average load of 6K+ requests per second.
Software Engineer at Avistopia
Oct 2021 - Jun 2022 (9 mos)-
Crafted an LMS by leading 3 engineers under Agile framework; achieving a product now hosting 2500+ users and offering 70+ courses and workshops.
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Developed a complex registration service with features such as team registration, and installment payment plans, by following clean code principles and OOP design patterns, which attracted 400+ users in the initial days.
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Implemented a custom secure web-based media player by rendering the video frame-by-frame in JS, preventing the leakage chance of premium courses.
Software Engineer at DigiKala
Aug 2020 - Sep 2021 (1 yr 2 mos)-
Implemented a queue management system for sellers,
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by integrating an API with third-party ticket-dispensing devices, collaborating closely with an external team,
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and designing a complex state machine,
achieving higher user satisfaction.
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Engineered a warehouse security tracking system with a customizable storage constraints panel, resulting in a $20K monthly cost savings.
Software Engineer at Arithland
Aug 2017 - Jul 2020 (3 yrs)-
Automated Arithland competition score tracking with PHP, later optimized in C# for easy setup, reducing personnel needs and boosting efficiency.
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Automated the competition participant registration by developing a user-friendly website from scratch, achieving efficient organization of a larger number of competitions within a shorter timeframe.
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Customized an online shop by WordPress and WooCommerce, which led to revenue growth and higher user satisfaction.
Volunteer Experience
Chief Scientific Officer (CSO)
2019 - 2020Head of Software Squad
2018 - 2019-
Managed 10+ workshops and courses, such as the first Flutter course in Iran with 60+ students.
Teaching Assistant
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Number Theory
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Foundations of Mathematics
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Logic
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Linear Algebra
Publications
Understandings
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Data Structures & Algorithms
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Formal Languages & Compilers
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Functional Programming (λ-Calculus)
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Object-Oriented Programming
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Model–View–Controller Pattern
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Object–Relational Mapping Technique
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Git
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Network Sockets, TCP, UDP
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HTTP
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REST APIs
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Protobuf
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gRPC
Skills
DevOps
Databases & Queues
Languages & Frameworks
Web
Other Tools
Minor Encounters
Certificates
Go (Intermediate) Certificate
SQL (Advanced) Certificate
Rest API (Intermediate) Certificate
Reads
Portfolio
Volunteer/Freelance Projects
The Central Bank of Arithland
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The Arithland competition, hosting 21K+ participants annually, and presented in various countries including the USA, France, Poland, Brazil, and Iran, relies on this project for score tracking.
Adventure+
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First Adventure+ event was covered by IRNA, visit here.
Startups
Majarajoor
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Designed a WordPress Plugin, which serves as an API, and integrates the website with the mobile app.
Listouch
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Worked as a PHP Developer with a team of 7+ members.
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Built and maintained a WordPress Theme & a Plugin which work together and manage all the ranking data.
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Faced the challenge of database design to optimize storing and analyzing data to be as fast and straight-forward as possible, despite of multiple categories, sub-categories, different types of votes, etc.
My Farm
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Worked on the API, designing data models, endpoints, etc.
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Had the experience of completely deploying all the technologies from scratch, using docker.
Personal Projects
Iago
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Realizing the absence of a robust Golang ORM, the project "Iago" was initiated to fill this gap. As a work in progress, the project holds promising potential within the community.
Gilda
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Had the chance to implement a small service in Go from scratch.
Camel
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Camel project is supposed to post manage Instagram pages, Telegram channels, and Twitter pages.
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The app's duty is not only to populate the page (with following-unfollowing people) but also crawling content from other sources and repost them on the page using given tags and topics.
Robot Karim
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Led a team of 3 engineers, and maintained the code quality and performance.
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Had the opportunity to learn Financial Markets, and also the basics of AI and Data Science, to be able to manage the code base.
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After teaching assisting a few courses at University of Tehran, decided to create a smart system for managing a course process, especially assignments.
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The project was a Cross-Platform synced app for Android, iOS, and Web.
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Learned UI/UX design, as well as Flutter & Dart. One of full-stack experiences.
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The MVP was 70% complete but due to shortage of time, suspended the project. However, extended the idea to the Avistopia platform, which was launched as a successful startup.
Witan
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Had the opportunity to work as a full stack engineer, handling server and client apps, as well as deploy and operations.
Sub Rosa
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Created this simple mobile game using Flutter, based on the Eulerian graphs, in just two weeks.
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Integrated the app with Google AdMob Service.
1401 Fortune
Meta Spark
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The effect consists of a floating egg over the user's head telling the fortune.
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The effect reached 69K Impressions in just 5 days.
Academic Projects
COOL Compiler
Assembler & Dis-assembler
Neural Network
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Implemented some flexibility features on network parameters, including dimension, layers sizes, cooling algorithm, activation function, number of classes, etc.
Genetic & Memetic Algorithms
Multiplayer Billiard
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Faced the challenges of working directly with web sockets instead of protocols. And also calculating the required physics for billiard balls.
Quoridor & Battleship
Insurance Data Analysis
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Learned R and implemented a project with it in less than a week.
