Yalcin Chayir

Experience

1. Lead Software Engineer

   Broadridge

   Feb 2020 — Present · Boston, MA, US

   Developed microservices with RESTful APIs for an AWS hosted B2B SaaS platform using Java, Spring Boot, JPA/Hibernate, MySQL, Flyway, Maven, JUnit, Mockito, SQS, S3, DynamoDB, Jenkins, Git/GitLab, Splunk, Datadog, Terraform, Chef and others- Overhauled and migrated existing Hyperledger Fabric Framework (HLF) blockchain network to Amazon Managed Blockchain (AMB) platform using Chef, Terraform, and Jenkins which made the product one of the first AMB onboarded projects since AMB was introduced in 2019 by Amazon- Developed an HLF blockchain smart contract microservice in Java replacing existing Go smart contracts application- Implemented CI/CD pipeline to build, deploy and manage AWS resources such as IAM, SQS, EC2, RDS, KMS, EFS, EKS, DynamoDB, S3, and AMB using Jenkins and Terraform- Designed and implemented an API Gateway Microservice from scratch to orchestrate public Web Service requests and integrated the service with enterprise MuleSoft using JWT and OAuth- Implemented MuleSoft PoC applications to integrate third party document platforms such as Avvoka and Finomial- Deployed Mule applications to MuleSoft Anypoint Platform Runtime Manager and published Rest APIs in MuleSoft Exchange- Integrated logging, monitoring, metrics, and alerting infrastructure with Splunk, Datadog, Amazon CloudWatch and Broadcom APM- Mentored and guided junior developers in an Agile team and conducted code reviews to ensure the quality and consistency of the codebase- Authored design documents and held review sessions with the engineers, cross-functional teams, and stakeholders.