Ismail is available for hire

Ismail Yenigul

Verified Expert in Engineering

AWS and Linux Developer

Location

Istanbul, Turkey

Toptal Member Since

July 31, 2020

Ismail是一位精通Linux的高级DevOps和SRE工程师, AWS (AWS认证的解决方案架构师和开发人员), IAM, EKS, ECS, EC2, RDS, S3), Kubernetes (CKAD and CKA certified, Docker, Helm), Terraform, Terragrunt, CI/CD (Jenkins, GitHub Actions), DevSecOps (AWS Security Hub, CIS benchmarks), and SRE practices. 他负责确保无缝部署、基础设施一致性和系统可靠性. Ismail积极主动，以客户为中心，不遗余力地提供高质量的结果.

System Administration SSH Linux Server Administration Security SSL Configurations Transport Layer Security (TLS)AWS DevOps DevOps Engineer Amazon RDS Cloud Migration SecOps Identity & Access Management (IAM)Cloudflare Cloud Security GitOps

Portfolio

Freelance

Jenkins, Terragrunt, Packer, Amazon Web Services (AWS)， GitHub...

Vision R&D

安全，系统管理，GitLab, Jira, Python, Git, Ubuntu...

Esys

安全，系统管理，DNS, SMTP, Red Hat Linux, Linux, LPIC-1, SSH...

Experience

Linux - 20 years System Administration - 20 years Site Reliability Engineering (SRE) - 15 years DevOps - 10 years Kubernetes - 6 years AWS Certified DevOps Engineer - 5 years Google Cloud Platform (GCP) - 4 years Terraform - 3 years

Availability

Part-time

Preferred Environment

Amazon Web Services (AWS), Continuous Delivery (CD), Continuous Integration (CI), Terraform, Google Cloud, Linux, Google Kubernetes Engine (GKE), Amazon EKS, GitHub Actions

The most amazing...

...我所做的项目主要是用Terraform构建安全可靠的AWS基础设施.

Work Experience

Senior DevOps Engineer | Site Reliability Engineer

2016 - PRESENT

Freelance

Deployed, automated, managed, and maintained a cloud-based production system, using AWS, Google Cloud, Azure, and DigitalOcean.
Ensured availability, performance, security, and scalability of production systems, focusing primarily on Linux environments.
排除系统故障并解决各种应用领域和平台的问题. Tracked and fixed issues, using Jira and GitHub.
从手动管理的系统迁移到完全自动化的平台，包括使用Jenkins创建CI/CD管道, GitHub Actions, Argo CD, Flux, Harness, and application of GitOps methodology.
管理EKS, ECR, ECS, GKE, DigitalOcean Kubernetes, Docker和Docker Compose部署.
Deployed AWS infrastructure (EKS, EC2, RDS, CloudFront, Route53, OpenVPN, IAM roles/policies and VPC) with Terraform.
Deployed GKE clusters, Cloud SQL, LoadBalancer, and Compute Engine, 并配置GitLab将Docker镜像推送到容器注册表.
构建Docker映像，并使用GitHub Actions将其部署到AWS Fargate.
用GitHub Actions, CircleCI和Jenkins创建了一个Docker构建管道.
Applied AWS security best practices and CIS compliance requirements; configured AWS Security Hub, AWS Config, and VPC flow; and hardened GKE cluster security.

Technologies: Jenkins, Terragrunt, Packer, Amazon Web Services (AWS)， GitHub, System Administration, Cloud Security, Docker, Continuous Delivery (CD), Continuous Integration (CI), Linux, AWS Fargate, Kubernetes, Amazon EKS, Terraform, DevOps, Google Cloud Platform (GCP), AWS DevOps, AWS Certified Solution Architect, Ubuntu Server, GitHub Actions, AWS Transfer for SFTP, Postfix, IT Security, NGINX, Zabbix, Google Kubernetes Engine (GKE), Docker Compose, AWS ELB, AWS CloudTrail, Docker Hub, Amazon Elastic Container Service (Amazon ECS), Shell, Gruntwork, CircleCI, AWS IAM, Amazon Virtual Private Cloud (VPC), Google Cloud SQL, Amazon Elastic Container Registry (ECR), Containers, CI/CD Pipelines, Linux Server Administration, Site Reliability Engineering (SRE), Argo CD, HAProxy, SecOps, Nagios, Datadog, Jenkins Pipeline, Harness CI/CD, DigitalOcean, Amazon EC2, Amazon CloudWatch, Amazon Simple Email Service (SES), MongoDB Atlas, Flux, Ubuntu, Git, Redis, MongoDB, Bash Script, Jira, Ansible, AWS Elastic Beanstalk, AWS CodePipeline, AWS CloudFormation, OpenVPN, Bitbucket, Cloudflare, GitOps, DevSecOps, GitLab CI/CD, VPN, Identity & Access Management (IAM), Python, Helm, Continuous Development (CD), Azure, Bash, Containerization, Amazon RDS, CentOS, SendGrid, RHEL, Microservices, Site Reliability, Leadership, Continuous Deployment, AWS Elastic File System, Relational Database Services (RDS), Redis Cache, AWS Certified DevOps Engineer, SSL Certificates, SSL Configurations, Transport Layer Security (TLS), AWS Cloud Architecture, Apache Kafka, Monitoring, AWS Certified Developer, Networking, Elasticsearch, Kibana, Grafana, Amazon EFS, SOC 2, Cloud Services, Kustomize, Red Hat OpenShift, Amazon DynamoDB, Prometheus, Serverless Architecture, Cloud Migration, AWS Lambda, DomainKeys Identified Mail (DKIM), SPF, Domain DNS Setup, Spam Filtering, Email, Cloud, AWS NLB, SQL, Amazon CloudFront CDN, Amazon Aurora, AWS NAT Gateway, Confluence, Karpenter, Celery, Django, Amazon EBS, Keycloak, HIPAA Compliance

Technical Team Lead and DevOps

2010 - 2016

Vision R&D

建立技术愿景并向部门主管提供领导.
搭建开发平台，管理项目，使用Jira, Confluence, GitLab.
管理软件开发和质量保证团队.
识别和整合新技术以推动业务战略并加强客户关系.

Technologies: 安全，系统管理，GitLab, Jira, Python, Git, Ubuntu, Red Hat Linux, Linux, MySQL, Postfix, IT Security, NGINX, AWS ELB, Shell Scripting, Linux Server Administration, Site Reliability Engineering (SRE), HAProxy, Nagios, Amazon Simple Email Service (SES), DevOps, Redis, Docker, Amazon EC2, MongoDB, Bash Script, Ubuntu Server, DigitalOcean, Google Kubernetes Engine (GKE), Cloud Security, OpenVPN, Bitbucket, Cloudflare, VPN, Bash, Containerization, CentOS, SendGrid, RHEL, Microservices, Site Reliability, Leadership, Continuous Deployment, Redis Cache, SSL Certificates, SSL Configurations, Transport Layer Security (TLS), Monitoring, Networking, Elasticsearch, Amazon EFS, SOC 2, Cloud Services, DomainKeys Identified Mail (DKIM), SPF, Domain DNS Setup, Spam Filtering, Email, Cloud, SQL, Mail Servers, Confluence, GitHub Actions

Linux/Unix系统管理员|站点可靠性工程师

2007 - 2010

Esys

设计和管理Linux (Red Hat, CentOS和Ubuntu)和Unix基础架构.
维护安全并在发现新威胁时减轻威胁.
改善基础设施服务、性能和可靠性.
成为Linux专业协会(LPI)的会员, 管理公司与学院的培训合作伙伴关系, 并在土耳其发展了Linux和自由/开源软件社区.
在Linux上安装和维护web、DNS、SMTP Server和FTP.
协助编写用于自动执行服务器任务的系统和应用程序的shell脚本.
创建并维护安全可靠的Linux环境. 管理日常活动，包括用户支持和系统管理任务.

Technologies: 安全，系统管理，DNS, SMTP, Red Hat Linux, Linux, LPIC-1, SSH, Ubuntu Linux, Git, Ubuntu Server, IT Security, NGINX, Zabbix, Linux Server Administration, Site Reliability Engineering (SRE), Nagios, Amazon Simple Email Service (SES), Ubuntu, Redis, MongoDB, Bash Script, Qmail, OpenVPN, VPN, Bash, CentOS, SendGrid, RHEL, Site Reliability, Leadership, SSL Certificates, SSL Configurations, Transport Layer Security (TLS), Monitoring, Networking, Elasticsearch, DomainKeys Identified Mail (DKIM), SPF, Domain DNS Setup, Spam Filtering, Email, SQL, Mail Servers

International DSL TAC Engineer

2003 - 2007

Alcatel Lucent

管理为电信运营商部署的AWS产品的Unix服务器.
在EMEA地区远程或现场提供Unix和Linux支持.
成长为EMEA地区Unix/DSL支持团队中成功且有价值的成员.

Technologies: Linux, Networks, Unix, Solaris, NGINX, Site Reliability Engineering (SRE), Bash Script, Networking

Software Developer

2002 - 2003

Oyak Teknoloji

用c++开发了借记卡和信用卡系统的主机交换服务器.
根据内部客户需求构建银行软件解决方案.
Increased the performance of the process, which increased customer satisfaction, gained loyal customers, and maximized profitability.

Technologies: Unix, Qmail

Unix/Linux Systems Administrator and Developer

2000 - 2002

RT.NET

Participated in designing, implementing, securing, 维护Linux和Solaris ISP的测试, development, and production environment.
为内部和外部客户端提供Linux、Solaris和基础设施支持.
创建和修改脚本和应用程序来执行任务.
提高了环境的稳定性、安全性、效率和可扩展性.

Technologies: System Administration, PostgreSQL, MySQL, Shell Scripting, Shell, Postfix, Qmail, DNS, FreeBSD, Linux, Solaris, Ubuntu Linux, Bash Script, CentOS

Experience

CIS Compliant AWS Infrastructure

通过使用AWS参考架构和Terraform模块的最佳实践，我重新设计并构建了一个AWS基础设施. The AWS components included EKS, ECR, S3, Config, Security Hub, IAM, GuardDuty, VPC Flow, RDS, and ELB.

Migration from Docker Compose to AWS EKS Cluster

我是这个项目的Devops工程师，应用程序运行在一个单一的EC2实例上，使用docker-compose.

Tasks accomplished:

Migrated all docker-compose files to k8s manifests.
已部署的AWS EKS集群包含以下组件:
AWS Load Balancer Controller
密封的秘密，以保持秘密加密在git存储库.
外部DNS自动管理route 53记录
Argo-CD to implement GitOps methodology
IAM assume roles to access EKS cluster

Everything was deployed with Terraform.

为AWS资源的地形代码实现IaC扫描器

我是这个项目的DevSecOps工程师，我使用Checkov扫描每次git推送和Harness部署中的Terraform代码.

Checkov是一个用于基础设施即代码的静态代码分析工具.

它扫描使用Terraform提供的云基础设施, Terraform plan, Cloudformation, AWS SAM, Kubernetes, Helm charts,Kustomize, Dockerfile, Serverless, Bicep, 或ARM模板，并使用基于图形的扫描检测安全性和遵从性错误配置.

我在GitHub Actions中实现了每次推送的Terraform扫描. 在将应用程序部署到AWS之前，还创建了用于在Harness管道中检查Terraform代码安全性的脚本. 我还通过提交代码修复PR为Checkov开源项目做出了贡献, docs, and feature requests.

Skills

Languages

Bash Script, Bash, SQL, Python

Frameworks

SPF, Flux, Django

Libraries/APIs

Terragrunt, Jenkins Pipeline

Tools

Git, Google Kubernetes Engine (GKE), Postfix, Docker Compose, GitHub, OpenVPN, Zabbix, AWS ELB, Terraform, AWS Fargate, Bitbucket, Amazon CloudWatch, AWS CloudTrail, Amazon Elastic Container Service (Amazon ECS), NGINX, MongoDB Atlas, Packer, Amazon Simple Email Service (SES), Shell, Amazon EKS, CircleCI, Jenkins, GitLab, Docker Hub, AWS IAM, Amazon Virtual Private Cloud (VPC), Amazon Elastic Container Registry (ECR), GitLab CI/CD, Helm, SendGrid, Nagios, Amazon CloudFront CDN, Confluence, Amazon EBS, Grafana, AWS CloudFormation, Jira, Ansible, VPN, Kibana, Keycloak, Celery

Paradigms

DevOps, Continuous Integration (CI), Continuous Delivery (CD), DevSecOps, Continuous Development (CD), Microservices, Continuous Deployment, Serverless Architecture, HIPAA Compliance

Platforms

Linux, Kubernetes, Docker, DigitalOcean, FreeBSD, Ubuntu Linux, Amazon Web Services (AWS), Amazon EC2, Google Cloud Platform (GCP), Red Hat Linux, Ubuntu, Unix, CentOS, AWS NLB, AWS Elastic Beanstalk, Red Hat OpenShift, Azure, AWS Lambda, Solaris, Apache Kafka

Storage

Google Cloud, MySQL, Amazon S3 (AWS S3), Redis, AWS Elastic File System, Redis Cache, Amazon EFS, Amazon Aurora, PostgreSQL, MongoDB, Google Cloud SQL, Elasticsearch, Amazon DynamoDB, Datadog

Other

System Administration, Security, AWS Certified Solution Architect, LPIC-1, GitOps, Qmail, Shell Scripting, GitHub Actions, AWS DevOps, AWS Transfer for SFTP, SSH, Ubuntu Server, Cloud Security, Systems Monitoring, Cloudflare, Gruntwork, IT Security, Containers, CI/CD Pipelines, Linux Server Administration, Site Reliability Engineering (SRE), Argo CD, Infrastructure as Code (IaC), SecOps, DevOps Engineer, Identity & Access Management (IAM), Containerization, Amazon RDS, RHEL, Site Reliability, Leadership, Relational Database Services (RDS), AWS Certified DevOps Engineer, SSL Certificates, SSL Configurations, Transport Layer Security (TLS), AWS Cloud Architecture, Monitoring, AWS Certified Developer, Networking, SOC 2, Cloud Services, Kustomize, ECS, Cloud Migration, DomainKeys Identified Mail (DKIM), Domain DNS Setup, Spam Filtering, Email, Cloud, Mail Servers, AWS NAT Gateway, Prometheus, AWS CodePipeline, HAProxy, Load Balancers, SMTP, DNS, Networks, Computer Science, Harness CI/CD, Checkov, Karpenter

Education

2012 - 2014

MBA in Business Administration

Istanbul Kemerburgaz University - Istanbul, Turkey

1997 - 2003

Bachelor's Degree in Computer Science

Istanbul Technical University - Istanbul, Turkey

Certifications

JUNE 2022 - JUNE 2025

Certified Kubernetes Administrator (CKA)

Cloud Native Computing Foundation

FEBRUARY 2022 - FEBRUARY 2025

Kubernetes应用开发者认证(CKAD)

Cloud Native Computing Foundation

JANUARY 2018 - JANUARY 2020

AWS Certified Developer - Associate

AWS

JULY 2017 - JULY 2019

AWS Certified Solutions Architect - Associate

AWS

JULY 2011 - JULY 2016

The Linux Professional Institute — LPIC-1

The Linux Professional Institute

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