yastrebov.alex@gmail.com

https://github.com/AlexanderYastrebov

https://www.linkedin.com/in/AlexanderYastrebov

Berlin, Germany

Hello.I am a software developer with a broad experience in the infrastructure and backend ecosystems.Elegance and simplicity is my passion.I strongly believe in and contribute to Open Source.

Design and development: Kubernetes, AWS, Microservices, SOA, OOP, GoF, TDD, BDD, CI/CD, refactoring

Languages: Go, Java, Python, SQL, JavaScript

Frameworks: Golang, Spring framework, Django, Node.js

Data storage: PostgreSQL, Solr, Neo4j, MongoDB

November 2015 - Present

https://www.zalando.de/

Software engineer in Europe's leading online fashion platform.

I work in the infrastructure team that takes care of all incoming web traffic of Zalando.

Our team develops and operatesSkipper -a HTTP reverse proxy Swiss Army Knife along withKubernetes Ingress Controller for AWSthat configures AWS Load Balancers according to Kubernetes Ingress resources.

We deploy these and other components across 200+ Kubernetes clustersusingKubernetes on AWS configuration templatesandCluster Lifecycle Manager.

My daily activities include:

• learning something new ("Experience is what you get when you didn't get what you wanted")
• reviewing pull requests
• helping teammates to solve issues
• troubleshooting and improving infrastructure components
• writing and refactoring Go (and YAML) code to fix bugs, create tools or add new features (seeGitHub timeline)
• supporting our users (builders) - troubleshooting and suggesting improvements
• reading code (various languages) to support our users
• writing and reviewing Technical Design Proposals for infrastructure upgrades
• driving infrastructure upgrades

Infrastructure upgrade projects I participated in include:

• implementation of multi-tenant OAuth Authorization Grant flow at ingress
• rewriting production Kubernetes operator from Scala to Go
• switching default cluster loadbalancer type from AWS Application Loadbalancer to Network Loadbalancer
• various cluster upgrades that require careful planing and testing (e.g. deprecation of Kubernetes Ingress extensions/v1beta1 or CRD upgrades)

I worked in the transaction handling team on the design and implementation of several software systems:

• Order processing
• Accounting transactions processing
• Customs data processing
• Business partner data management
• Migration of vintage applications to Kubernetes

I have also discovered several critical security issues and proposed fixes for them.

July 2012 - November 2015

http://null-pointer.ru/

Co-founder, software architect and lead developer in a small software team.

We have developed multiple solutions for our client National Credit Bureau:

• Data management and data mining system on top of database of Russian enterpriseshttp://www.creditnet.ru
• Fulltext search solution with rich client side
• Visual graph analysis tool of enterprise connections via co-founders, co-management and contacts
• Enterprise profile reporting engine
• REST API for commercial access

January 2011 - January 2013

http://www.bpcbt.com/

Java developer in global banking software and payment solutions provider.

I have completed the following projects:

• Payment gate integration ofTTK andSberbank
• Social network application for mobile account deposit
• Mobile banking application REST API design
• Prototype of mobile banking USSD payment application
• Refactoring of anti-fraud filter administration panel

I have also participated in architecture planning and technical discussions for other payment-related solutions.

January 2010 - January 2011

http://bildika.ru/

Co-founder and backend developer in b2c e-commerce startup.

We have developed e-commerce system for construction materials marketaimed on customer convenience.

February 2006 - January 2010

As a Java developer I have participated in projects:

• OCR and PDF417 barcode recognition library
• Data ETL for Wiley publishing house
• Web based document management system
• Crude oil mining monitoring web application

Bauman Moscow State Technical University, 2002-2008

Engineer's degree in Mechatronics, Robotics and Automation Engineering

PinnedLoading

1. zalando/skipperzalando/skipperPublic

   An HTTP router and reverse proxy for service composition, including use cases like Kubernetes Ingress

   Go 3.2k 354

2. wireguard-vanity-keywireguard-vanity-keyPublic

   This tool searches for a WireGuard Curve25519 keypair with a base64-encoded public key that has a specified prefix

   Go 9 2

3. streamstreamPublic

   A Go library of functional-style generic filter-map-reduce operations

   Go 20

4. noleaknoleakPublic

   Simple goroutine leak detector

   Go 2

5. golang/gogolang/goPublic

   The Go programming language

   Go 127k 17.9k