Nikos is a seasoned DevOps engineer and infrastructure designer with years of hands-on experience, which includes building a high-traffic platform with at least 7 million users. On that project, the whole infrastructure was horizontally scaled based on the load and traffic. The challenge there had to do with the size of traffic—specifically auditing and logging—due to the size of logs, etc. were much larger than usual. It's safe to say whatever your DevOps needs are, Nikos can handle them.
Created a new secure network within the cloud infrastructure and helped the company archive security certifications to take on new and more significant customers.
Designed and enabled a monitoring-and-audit platform that helped the support department to answer customer's questions more confidently.
Transformed the build and deploy procedure. Previously, the company used git pull as the deployment method, which caused HTTP errors; now, the node's upgrades happen without traffic and with zero HTTP errors.
After an accident, a process started to delete files from two buckets rapidly. The buckets had versioning enabled but we needed to start a flow to recover the data. To solve this, I created a mechanism with a queue and Lambdas that found the files and restored them (i.e., deleting the deletion mark).
A Python application to work as a Linux daemon to consume messages from Amazon SQS queues and execute them in a PHP environment. The daemon use metrics posts to an Amazon CloudWatch metrics service and keen audit logs in Amazon S3.
With the ELK stack, I used a scalable way with queues to parse files in Amazon S3 Storage and populate data in an Elasticsearch cluster for auditing. The parsing happens in a Kubernetes cluster and uses S3 events and queues to make parsing asynchronous.
A startup, due to an increase in its employee numbers, decided to enable a user repository with Okta. I designed and implemented the authentication, authorization, and internal portals with Okta (SAML and OpenID). The internal services include the AWS console, CLI, and all Dockerized/Kubernetes applications like schedulers and logging tools like Elasticsearch.
I was a member of the team that passes the SOC2 audit and pass for a company. This team involved the reports and procedures to keep any security aspects and be tracked to audit trails. Finally, we apply any changes requested by the audit team.
