Alex Abashev, Developer in Yerevan, Armenia
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Alex Abashev

Verified Expert  in Engineering

Java Developer

Yerevan, Armenia
Toptal Member Since
October 17, 2012

Alexey is a talented Java architect with over 20 years of experience developing scalable, high-load systems. He is a highly competent team lead and is skilled at arranging entire development environments according to best practices. Alexey adheres to unit testing, code reviews, continuous integration, and auto-deployment on the cloud or using dedicated hardware.



Preferred Environment

Git, IDEA IDE, Linux, MacOS

The most amazing...

...thing I've done is give the keynote presentation at a developers' conference.

Work Experience


2020 - 2023
A Company Managing Logistic Services for SMB
  • Moved a lot of background processing tasks to AWS Lambda and Step Functions as part of the refactoring process, saving 70% of our cloud bills.
  • Handled setting up the dashboard for stakeholders with business metrics, ETL, and data storage behind.
  • Served as a team lead in charge of building the development process from scratch, with QA environments and full CI usage for every part—from managing issues to security checks, rollouts, etc.
  • Implemented a platform for integrating various APIs (Shopify, Amazon Marketplace, WooCommerce, etc) into one processing flow.
Technologies: Java, SQL, Spring, Spring Boot, JAX-RS, Apache Maven, Docker, Amazon Web Services (AWS), JUnit

VP of Engineering

2013 - 2020
Company in the Mobile Entertainment Market
  • Hired and built up the back-end development team with an agile development cycle, from coding conventions to CI/CD.
  • Implemented a microservices architecture with hundreds of servers spread between three AWS regions and multiple time zones.
  • Planned and deployed business services at AWS China.
  • Iterated on our deployment scheme, from custom shell scripts through Ansible and Packer to Terraform and ECS.
  • Implemented a lot of tools for managing environments like admin API for the service, AWS ECS and S3 resources, Datadog monitoring, or PagerDuty monitoring.
  • Integrated a few monitoring systems for our applications and infrastructure, like Zabbix, NewRelic, and Datadog.
  • Designed and implemented a back-end service for instant messaging between mobile and web users. As a transport layer, I used WebSockets with a highly modified OpenFire XMPP server.
  • Designed and implemented push notifications for mobile and web users. It was a mix up of custom client code for Apple/Google API, AWS Push Notification service, and custom Redis queues.
Technologies: Amazon Web Services (AWS), Spring, Requirements Analysis, Terraform, Docker, Java, SQL, Architecture, REST APIs, ETL

Performance Architect

2013 - 2014
Software Vendor in the Aerospace Industry
  • Refactored a custom Swing application to render aircraft models with airflows. Instead of one FPS with keyboard manipulation, I was able to make all calculations in run-time with 40 FPS.
  • Built up the whole development cycle with GitHub as source hosting, CI, tests, and nightly builds for QA.
Technologies: Spring, JNI, Swing, Java

ISV Engineer

2008 - 2013
Oracle (formerly Sun Microsystems)
  • Evangelized Oracle technologies and helped vendors to use Java and Solaris technologies in a more efficient way.
  • Managed a few distributed teams to implement custom integrations and new architectures.
  • Handled performance testing for new hardware and optimize software for software-in-silicon.
  • Implemented a few integrations between Oracle Identity Management products and a few ERP systems from the Russian market.
Technologies: Spring, Berkeley DB, MongoDB, Oracle Database, Solaris, Java

Performance Architect

2007 - 2008
  • Worked with the Flash front end and Java back end on a MySQL, Solaris, and Tomcat cluster on Nginx.
Technologies: Spring, NGINX, Apache Tomcat, Solaris, MySQL, Java, Flash

Team Lead/Architect

2004 - 2007
Epam Systems
  • Handled various Java outsourcing projects with Russian and foreign customers.
  • Implemented a few intranet systems with GWT.
Technologies: Java

Senior Java Developer

2003 - 2004
  • Developed an internet client for a banking system with JEE stack technologies.
Technologies: JEE

Java Developer

2000 - 2001
  • Worked on a few Java outsourcing projects with JSE and JEE technologies.
Technologies: Java

Virtual File System for S3 API
My open-source project about implementing access to S3 storage with a unified interface. It was a Top 10 most downloadable artifact, and then I hosted it on Bintray.

Virtual File System for Amazon S3
An open-source project for managing S3 bucket content as a file system inside any Java project. Virtual file systems allow coupling S3 with a local file system, FTP servers, HDFS, etc. It can connect to any cloud with the S3 API or with little tuning for missed features.
1998 - 2005

Master's Degree in Computer Engineering

Bauman Moscow State University - Moscow, Russia


Solaris 10 System Administrator



Sun Certified Java Programmer – Java 6 (SCJP)



REST APIs, Facebook API, Telegram Bot API, JAX-RS


Terraform, GitHub, Apache Tomcat, NGINX, WildFly, Apache Maven, Flash, IDEA IDE, Git


Spring, GWT, Apache Spark, Hadoop, Swing, JNI, Spring Boot, JUnit


Java, JavaScript, Groovy, SQL, Kotlin, HTML, CSS, HTML5


Continuous Delivery (CD), Continuous Integration (CI), Web Architecture, Requirements Analysis, Agile Software Development, Scrum, DevOps, ETL


JEE, Solaris, Linux, Windows, Docker, AWS Lambda, Amazon Web Services (AWS), JVM, Oracle Database, MacOS, AWS IoT


MongoDB, Memcached, Amazon SDB, Amazon Aurora, Berkeley DB, Oracle Rdb, Amazon DynamoDB, Cache, MySQL, Elasticsearch, Redis, PostgreSQL, Google Cloud


SaaS, Deployment, Technical Leadership, Architecture, System Architecture, China, WebSockets, Big Data, Mobile Payments, Videos, Video Streaming

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