Alexander Abgaryan
Verified Expert in Engineering
DevOps Engineer and Developer
Warsaw, Poland
Toptal member since August 18, 2022
Alexander is a top-rated AWS specialist who holds six Amazon Web Services certifications. His AWS certifications include AWS Certified Solutions Architect, AWS Certified DevOps Professional, AWS Certified AI Practitioner, AWS Certified Security Specialist, AWS Certified Advanced Networking Specialist, and AWS Certified SysOps Administrator. Alexander is an architect who builds highly secure, scalable, available, stable, and cost-efficient cloud AWS infrastructures.
Portfolio
Experience
- Linux Server Administration - 16 years
- Terraform - 10 years
- DevOps - 10 years
- Cloud Migration - 10 years
- Docker - 10 years
- Amazon Elastic Container Service (ECS) - 7 years
- Kubernetes - 7 years
- Jenkins - 7 years
Availability
Preferred Environment
Linux, Slack, Amazon Web Services (AWS), Terraform
The most amazing...
...results I've made for my clients were optimizing AWS infrastructure costs by up to 75% and handling a 50x higher customer flow during holiday and season sales.
Work Experience
Freelancer
Freelance
- Performed 11 migrations of highly available websites to AWS with minimal downtime of the services.
- Helped seven companies with optimizing AWS hosting costs with an average decrease in payments for servers by 60%.
- Assisted 11 companies with optimizing their system infrastructure, which decreased average website response time by 65%.
- Supported five highly available fintech services. Successfully kept the services' uptime 99,99% and the response time of 0,01s.
Systems and Network Administrator
CentroBill
- Completed the first level PCI DSS certification, the first certification for the company. Configured all the required server settings and introduced the necessary standards of work and workflow standards.
- Optimized the network's architecture, resulting in the system's ability to process up to 1,000 customer requests simultaneously without any loss in speed.
- Introduced and set up full-fledged monitoring that eliminated 98% of system failures, correcting them before they could affect the system's performance.
- Performed the standardization and documentation of existing processes. This resulted in a more effective system of administration by old employees and reduced the time and money resources needed to involve a new employee in the IT department.
Team Lead | DevOps Department
Sarkor Telecom
- Resolved all technical problems recurring from year to year and increased the system uptime to 99.8%.
- Organized the development of a new billing system for IP telephony services.
- Developed a training program for the technical support department, which allowed to reduce the percentage of escalated requests from 63 to 15%.
- Transferred the billing system to the use of the distributed Oracle database, which reduced the percentage of denial of service to 0.02%.
- Organized the practical joint work of system administration, programming, and technical support departments.
Experience
QliqSoft
https://www.qliqsoft.com/I helped QliqSoft migrate to Amazon's Kubernetes (EKS) and ensured all operations were being held securely, reliable, and cost-efficiently.
CentroBill
https://centrobill.com/I migrated their infrastructure from on-premise to AWS, ensuring the overall system stability and scalability while keeping hosting costs low. I also helped CentroBill pass yearly PCI DSS certifications.
Green Panda Games
https://greenpandagames.com/As a result of our cooperation, GPC can work on their direct game development tasks while we help maintain high system loads.
MAKEUP
https://makeup.com.uaIn addition, I helped this cosmetics marketplace manage peak load times of 30-fold traffic increase during sale seasons. There has not been a single system hack in our 12 years of cooperation, and the website’s uptime is 99.98%.
Foxtrot
I migrated the marketplace to a newly designed, fault-tolerant AWS-based architecture. We conducted in-depth load testing, according to which we tuned internal systems to effectively perform during Black Friday. Effectively works with the flow of two million users each month and handles x50 traffic changes.
Certifications
AWS Certified Advanced Networking – Specialty
Amazon Web Services
AWS Certified SysOps Administrator – Associate
Amazon Web Services Training and Certification
AWS Certified DevOps Engineer – Professional
Amazon Web Services Training and Certification
AWS Certified Security Specialist
Amazon Web Services Training and Certification
AWS Certified Solutions Architect Associate
AWS
Skills
Tools
Terraform, Slack, Jenkins, Bitbucket, GitLab, GitHub, VPN, Amazon Elastic Container Service (ECS), Amazon Simple Email Service (SES), Amazon EKS, Amazon CloudFront CDN, AWS IAM, Amazon CloudWatch, Amazon Simple Queue Service (SQS), Amazon Virtual Private Cloud (VPC), Amazon ElastiCache, AWS Fargate, NGINX, GitLab CI/CD
Languages
Bash, Python
Frameworks
AWS HA
Paradigms
DevOps, Serverless Architecture, DevSecOps
Platforms
Kubernetes, Linux, Docker, Amazon EC2, AWS Lambda, Amazon Lightsail, Ubuntu Linux, Debian Linux, Amazon Web Services (AWS), Ubuntu, Blockchain, AWS Elastic Beanstalk
Storage
Amazon S3 (AWS S3), Amazon Aurora, Elasticsearch, Amazon DynamoDB, Amazon EFS, PostgreSQL
Other
Cloud Migration, System Administration, Linux Server Administration, AWS DevOps, CI/CD Pipelines, Cloud Computing, Firewalls, Linux Administration, Infrastructure, Amazon RDS, Document Management Systems (DMS), Server Backups, Web Application Firewall (WAF), Code Deployment, Networking, Cloud, Networks, Security, Cloudflare, AWS Cloud Architecture, AWS Certified Solution Architect, Containerization, Serverless, Lambda Functions, AWS Certified DevOps Engineer, Cloud Architecture, IT Security, AWS Auto Scaling
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