Selcuk Cihan

I've been developing serverless web applications and APIs using the serverless framework, making use of AWS lambda, step functions, APIG, S3, CloudFront, Route53 and CloudWatch (for events).

As an ex-Amazonian, I've developed many services backed by AWS. Leveraging cloudwatch to monitor system health or high throughput stream processing with kinesis and dynamodb just to name a few of my experiences with AWS.

Although I regard myself as a polyglot technologist, having worked with various software stacks, Java is my go-to language. I've developed and maintained daemons, REST services and Android apps with Java; often finding myself inspecting a heap dump for memory leaks or connecting to a remote JVM to debug problems.

I've created serverless backend APIs using Python3, with the serverless framework. I've been using Python for scripting small tasks, such as a migration script or automating a test. I've also developed web applications on Django.

I believe in automating any routine we have in software development. I strive to maintain a deployment pipeline where engineers would have confidence pushing code. This can only be possible with proper testing. I aim to have pretty high unit test coverage (nope, 100% is not practical) and ensure every external dependency is covered via integration tests. Furthermore, for high quality and improved operational excellence, having a separate environment for testing against regressions and performance is crucial within a full CD pipeline.

Deploying and maintaining services on Linux require a great deal of knowledge with scripting languages and command line tools. Tailing through application logs grepping for a particular pattern is what I do daily to troubleshoot production problems. To hot-fix corrupt data or perform a migration, occasionally I need to get my hands dirty on a perl or python script. I have experience in things like monitoring traffic on a particular port or profiling a process in terms of I/O, CPU or memory utilization.

I've used postgresql on AWS RDS and have developed applications using postgresql and also performed migrations on the database.