Aleksandar Knezevic
Verified Expert in Engineering
DevOps Engineer and Developer
Dublin, Ireland
Toptal member since November 6, 2019
Aleksandar is a seasoned DevOps engineer with a system and network administration background. He has a strong passion for automation, building CI/CD pipelines, and working in the IoT industry. Aleksandar prefers working with open-source technologies in small-to-medium companies or startups.
Portfolio
Experience
- Linux - 13 years
- DevOps - 10 years
- Bash - 10 years
- Python - 10 years
- Docker - 6 years
- Amazon Web Services (AWS) - 6 years
- Terraform - 5 years
- Kubernetes - 4 years
Availability
Preferred Environment
Amazon Web Services (AWS), Docker, Linux, Networking, Kubernetes
The most amazing...
...thing I've developed was a cable modem provisioning system. The build, testing, and deployment were fully automated across different environments.
Work Experience
Senior Cloud Support Engineer
Amazon Web Services (AWS)
- Worked on complex infrastructure issues with key customers.
- Tracked and improved official documentation.
- Worked and led multiple internal projects inside the company.
Senior DevOps Engineer
Ethereum Swarm
- Organized the entire infrastructure code to one Git repository.
- Implemented and maintained the CI/CD process with supporting developer teams.
- Deployed the process and decreased time to two minutes.
DevOps Engineer
Advertima
- Developed a data pipeline for 300 IoTs on AWS using Kafka.
- Built automated provisioning for the issuing and distribution of certificates.
- Implemented IoT monitoring using VerneMQ and Telegraf.
DevOps Engineer
Symphony
- Developed infrastructures on AWS for multiple startup companies.
- Implemented full CI/CD processes using various technologies.
- Monitored infrastructures and applications using multiple technologies.
Systems Engineer
Kopernikus
- Developed a cable modem provisioning system along with the corresponding platform.
- Maintained hundreds of servers and 10,000 cable internet users.
- Implemented a provisioning process using open-source technologies.
Experience
Cable Modem Provisioning System
CI/CD Pipeline
The entire infrastructure was built using Terraform with a separate pipeline for changes made to the existing environment. I also developed a Terraform module for the application and used it across environments.
Infrastructure for the Blockchain Project
http://ethswarm.orgEducation
Bachelor's Degree in Information Systems (Computer Science)
Military Academy of Serbian Armed Forces - Belgrade, Serbia
Certifications
AWS Solutions Architect Associate
Amazon Web Services
Terraform Associate Certification
HashiCorp
Skills
Libraries/APIs
Flask-RESTful, Flask-Marshmallow, SQLAlchemy
Tools
Terraform, Amazon EKS, Ansible, Docker Hub, Amazon Elastic Container Service (ECS), GitHub, Apache, AWS Fargate, GitLab, Vault, Jenkins, Docker Compose, GitLab CI/CD, CircleCI, Git, VPN, ELK (Elastic Stack), Helm, NGINX
Paradigms
DevOps, Continuous Integration (CI), Continuous Delivery (CD), Continuous Development (CD)
Platforms
Linux, Docker, Amazon Web Services (AWS), Amazon EC2, Kubernetes, Apache Kafka, Apache2, AWS Lambda
Languages
Bash Script, Python, Bash, PHP, Python 3, Python 2, Go
Storage
MySQL, PostgreSQL, MongoDB
Frameworks
Django, Flask
Other
DNS, Containers, Load Balancers, IP Networks, Web Servers, Site Reliability Engineering (SRE), Back-end, Autoscaling, Cisco Networking, BIND, CI/CD Pipelines, Flask-Admin, Serverless, Networking, Deployment, AWS DevOps, Solution Design
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