David Szabo
Verified Expert in Engineering
DevOps Engineer and Developer
David is a DevOps engineer with great communication skills and extensive experience in Amazon Web Services. He has strong infrastructure as code, continuous delivery and cloud infrastructure knowledge, and the flexibility and willingness to use new technologies.
Portfolio
Experience
Availability
Preferred Environment
Cloud Infrastructure, Agile, Docker, Terraform, CI/CD Pipelines, DevOps, Amazon Web Services (AWS), Linux
The most amazing...
...cloud infrastructure I've built is a scalable, failure tolerant AWS environment with continuous deployment workflow for a global career matching platform.
Work Experience
AWS DevOps Engineer
Tremor Technologies, Inc. (via Toptal)
- Implemented a Terraform infrastructure as code (IaC) solution for a redesigned AWS microservices architecture.
- Monitored AWS cloud resources and provided security and performance reports.
- Automatized the creation of custom AWS AMIs using Packer, decreasing recurring manual maintenance work.
- Modified and optimized continuous delivery pipelines to work with the new environment.
- Acted as technical advisor for developers and supported their daily work.
Platform Engineer
Sokanu (via Toptal)
- Designed a secure and scalable microservices architecture in the AWS cloud.
- Used Terraform to create and manage a consistent and trackable infrastructure.
- Assisted in full transition and data migration from another cloud provider.
- Modified and optimized CI/CD pipelines to work with the new environment.
- Acted as technical advisor for software developers.
DevOps Engineer
Adverator (via Toptal)
- Acted as technical advisor for developers.
- Reviewed existing infrastructure and provided security and performance reports.
- Discovered infrastructure resources and created a detailed network diagram.
- Monitored servers and resolved any kind of issues.
- Created an automatic backup system to store daily snapshots of EC2 instances.
DevOps Engineer
CodeBerry Programming School
- Designed a secure and scalable microservices architecture in the Amazon cloud.
- Built a CI/CD pipeline to automatize deploying processes and improve developers' workflow.
- Used Terraform to make infrastructure changes trackable and consistent.
- Acted as technical advisor for developers.
- Supported the database transition from a standalone MongoDB server to MongoDB Atlas.
System Administrator
MiAM Tech, LLC (via Toptal)
- Created production and several development environments using Ubuntu instances in the cloud and supported the dev team.
- Set up multi-domain email infrastructure for securely sending and receiving messages.
- Installed auto-renewable SSL certificates using Let's Encrypt.
- Configured strict CSF firewall to avoid unwanted network traffic and login attempts.
- Supported an open source team chat software solution installed on servers.
DevOps Engineer
Sappira, Inc. (via Toptal)
- Designed and built a HIPAA-compliant production and staging AWS environment.
- Acted as technical advisor for developers.
- Set up and configured auto-scaling for the AWS system.
- Implemented automatic backup and restore processes.
- Created infrastructure as code with Terraform and Ansible.
DevOps Engineer
Eduware, Inc. (via Toptal)
- Migrated the existing application and database to a secure, scalable Amazon AWS cloud solution.
- Revised existing configurations and made improvements to use AWS advantages.
- Implemented new solutions based on cloud technologies, like load balancing and failure tolerance.
- Set up a continuous deployments system with Jenkins and custom scripts.
- Configured the monitoring system with automatic alerts with Zabbix.
Owner, CEO, and Senior Sysadmin
Fruit Hosting
- Managed the entire hosting infrastructure, including production, backup, and management servers.
- Customized the cPanel/WHM system based on marketing and user management requests.
- Created automated management scripts to handle user accounts.
- Monitored servers and resolved any kind of issues.
- Collaborated with other teams in the company (helpdesk, marketing).
- Migrated all user accounts (3000+) to a new and secure infrastructure.
Junior Sysadmin
Datatrans Internet
- Acted as second-level technical support (personal, email, phone).
- Configured DNS servers based on user requests and managed domain registrations.
- Assisted with internal development processes with cooperation of sales and helpdesk teams.
- Created websites for customers using PHP.
- Developed custom tools for data analysis and automated tests to improve development and decision making processes.
Experience
Implementation of an Infrastructure-as-code (IaC) Solution for a Serverless AWS Architecture
Environment Transition for a Fast-growing Startup to a Microservice-oriented Infrastructure
Scalable AWS Infrastructure for High-traffic Campaign Website
Migration of Complete Web Hosting Infrastructure
Skills
Languages
Bash Script, Bash, Perl, CSS, Python, HTML, PHP
Libraries/APIs
Jenkins Pipeline, Node.js
Tools
Amazon CloudWatch, AWS CLI, AWS CloudFormation, AWS IAM, AWS CloudTrail, Terraform, Let's Encrypt, Amazon Virtual Private Cloud (VPC), Amazon EBS, Postfix, Amazon CloudFront CDN, Jenkins, Apache, NGINX, Git, Amazon Elastic Container Registry (ECR), Apache HTTP Server, Packer, Amazon Simple Queue Service (SQS), Docker Compose, Munin, Nagios, AWS ELB, Zabbix, GitLab, GitHub, Amazon Elastic Container Service (Amazon ECS), PHP-FPM, ConfigServer Security & Firewall (CSF), Bitbucket, Sumo Logic, Sentry, AWS CodeDeploy, AWS CodeBuild, AWS CodeCommit, Grafana, Ansible, Chef, CircleCI
Paradigms
Agile, DevOps, Microservices Architecture, Serverless Architecture, Continuous Development (CD), Continuous Deployment, Continuous Integration (CI), Continuous Delivery (CD), Microservices, Lambda Architecture
Platforms
AWS ALB, AWS Lambda, Docker, Amazon EC2, Ubuntu Linux, CentOS, Debian, Ubuntu, Linux, Amazon Web Services (AWS), AWS Elastic Beanstalk, Amazon Linux AMI, DigitalOcean, Icinga2, Icinga, Kubernetes, cPanel, Amazon, Rackspace, Rocket.Chat, Amazon Linux, WordPress, Windows Server
Storage
LAMP Server, Amazon S3 (AWS S3), AWS Elastic File System, MariaDB, Auto-scaling Cloud Infrastructure, MySQL, PostgreSQL, MongoDB, Datadog, Amazon DynamoDB, AWS SWF, Redis, Microsoft SQL Server, SQLite
Industry Expertise
Network Security
Other
SysOps, AWS Cloud Architecture, AWS DevOps, CI/CD Pipelines, AWS Certificate Manager, Security, Site Reliability Engineering (SRE), Cloud Infrastructure, AWS Certified SysOps Administrator, Site Reliability, Linux Server Administration, Shell Scripting, Load Balancers, Elastic Load Balancers, Dynamic Load Balancing, Networking, Monitoring, Email Systems, Infrastructure as Code (IaC), HTTPS, HTTP, Ubuntu Server, AWS Auto Scaling, Infrastructure, Courier, IMAP, POP3, SMTP, DNS Servers, DNS Configuration, Domain DNS Setup, Server Administration, Migration, Server Migration, DNS, System Administration, Linux Administration, Web Servers, HTTP Server, AWS Certified DevOps Engineer, Cloud Security, Cloud, Networks, Network Architecture, Serverless, Scalability, Web Scalability, Architecture, BIND9, Infrastructure Architecture, Network Monitoring, IT Management, IT Infrastructure, Infrastructure Monitoring, Infrastructure Security, Web Host Manager (WHM), FTP, WiFi, IIS, Relational Database Services (RDS), Jitsi, ECS, Amazon Route 53, ACM Problem Solving, Identity & Access Management (IAM), AWS CodePipeline, NFS, Cloud FinOps, Cloud Computing, Cost Analysis, Costs, Cost Estimation, Cost Cutting, Cloud Cost Management, Cost Management, Cost Control
Frameworks
Django, AWS HA
Education
Bachelor's Degree in Electrical Engineering
Óbuda University, Internet/Network Faculty - Hungary, Szekesfehervar
Certifications
FinOps Certified Engineer
The Linux Foundation
AWS Certified DevOps Engineer Professional
AWS
AWS Certified SysOps Administrator Associate
AWS
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