Hyder Jafri, Developer in Karachi, Sindh, Pakistan

Hyder Jafri

AWS Certified Solution Architect Developer

Location
Karachi, Sindh, Pakistan
Toptal Member Since
October 31, 2019

Hyder is adept at understanding business objectives, establishing value for transformation and reformation change while streamlining business requirements with scalable, effective, and future-proof solutions. He has 4+ years of solutions delivery experience in the areas of consumer, enterprise, and financial solutions; cloud infrastructure; and high availability, scalability, and performance optimization.

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Portfolio

ARPAtech
Amazon Elastic Container Registry (Amazon ECR), Amazon Web Services (AWS), .NET...
Cloudways
Amazon Web Services (AWS), Ansible, Docker, Varnish, Linux, Apache, PHP-FPM...
DIDx
SIP, Nagios, Monit, Apache, NGINX, Elastix, FreePBX, Kamailio, Asterisk

Location

Karachi, Sindh, Pakistan

Availability

Part-time

Preferred Environment

Amazon Web Services (AWS), Docker, Azure, Ansible, Git, Linux

The most amazing...

...infrastructure I have built was a Kubernetes cluster, with its Helm charts and configuration scripts and CI/CD implementation using Jenkins.

Work Experience

2018 - PRESENT

Lead Infrastructure | DevOps

ARPAtech
  • Created CI/CD pipeline for ASP.NET application using Azure DevOps pipelines, helped engineering team setup Azure AD for authentication using LDAPs.
  • Physically connected the client’s data centers to AWS infrastructure using AWS Direct Connect and troubleshoot issues which include OSI layers 1-4, from setting up the physical connection, establishing ARP using 802.1Q VLAN encapsulation, and establishing eBGP peering relationships with AWS infrastructure.
  • Implemented IPSec based VPN tunnels between client’s on-premises equipment, the AWS Virtual Private Cloud resources, and ARPAtech's engineering teams.
  • Followed best practice guidance for highly available, scalable, and secure cloud/hybrid cloud environments using AWS Config.
  • Configured route tables, internet and NAT gateways, load balancing, direct connect, and firewall rules in AWS VPC to get access to the on-premises resources.
  • Designed and built scalable infrastructure using Cloud-Native architecture for a large scale distributed application which is deployed on hybrid cloud systems (Private Cloud + AWS) using Kubernetes and Docker, created CI/CD pipelines with Jenkins to spin up the whole infrastructure and manage deployments using CloudFormation, Ansible, and Helm.
  • Created a culture of automation, measurement, and sharing (CAMS) using ChatOps by exposing the frequently used administrative functions to all teams.
Technologies: Amazon Elastic Container Registry (Amazon ECR), Amazon Web Services (AWS), .NET, OpenVPN, Helm, Logstash, Kibana, Elasticsearch, GitFlow, Slack, Jira, Azure, AWS CloudFormation, Ansible, Zabbix, Jenkins, Kubernetes, Docker, Laravel, Architecture, Azure Application Gateway, Azure Cosmos DB, SecOps
2016 - 2018

Senior Infrastructure Engineer | Team Lead

Cloudways
  • Assisted the customer support team in troubleshooting issues.
  • Wrote Varnish VCL configuration to meet up with the custom caching needs.
  • Automated the daily tasks by fetching the data through REST APIs and then processing it using Python scripts.
  • Wrote Ansible Playbooks for the custom setups which includes installation and configuration of different services.
  • Assisted clients with various Monitoring and logging tools.
  • Troubleshot issues with Kubernetes based HA Clusters.
  • Designed and built various dashboards over NewRelic and Circonus to monitor and visualize the service level indicators (SLIs) and other key performance indicators (KPIs); these dashboards are used in daily standups to drive the agenda.
  • Built dashboards over PowerBI to visualize business performance data as a single source of truth for broader observation about the business as a whole.
Technologies: Amazon Web Services (AWS), Ansible, Docker, Varnish, Linux, Apache, PHP-FPM, NGINX, Kubernetes, Git
2014 - 2016

Manager Operations

DIDx
  • Installed, configured, customized, and administered Linux servers (Centos).
  • Performed research and develop new technologies.
  • Set up load balancing and failover algorithms using Kamailio SIP Server.
  • Installed and configured monitoring tools for Linux Servers and VoIP traffic (HOMER 5, SNGREP, Captagent, and Nagios).
  • Evaluated performance of technical support team.
  • Integrated systems to VOIP providers (Voxbone, Verizon, LEVEL3, Windstream).
  • Monitored all customer inquiries and ensure appropriate resolution of the same.
  • Analyzed and catered all security problems on network.
Technologies: SIP, Nagios, Monit, Apache, NGINX, Elastix, FreePBX, Kamailio, Asterisk

Experience

Built a Kubernetes Cluster with CI/CD in a DMZ Environment

I designed and built a scalable infrastructure using cloud-native architecture for a large-scale distributed application deployed on hybrid cloud systems (private cloud and AWS) using Kubernetes and Docker. My work also included creating CI/CD pipelines with Jenkins to spin up the whole infrastructure over CloudFormation, as well as managing deployments using CloudFormation, Ansible, and Helm.

Established Connectivity with AWS Direct Connect

Physically connected the client’s data centers to AWS infrastructure using AWS Direct Connect and troubleshoot issues which include OSI layers 1-4, from setting up the physical connection, establishing ARP using 802.1Q VLAN encapsulation, and establishing eBGP peering relationships with AWS infrastructure.

Built a Microservices Architecture for .NET Apps Using Azure Kubernetes Service (AKS)

I built an architecture for .NET microservices for a large eCommerce platform using Azure Kubernetes Services (AKS). The project consists of an API gateway and five or more (dynamic) microservices developed on .NET Core. I had to containerize the application according to the AKS ecosystem and then design the CI/CD pipelines using Azure DevOps to orchestrate the build and deploy process. I also considered adding new microservices using the pipeline so developers can add a new service behind the gateway using a pipeline in Azure DevOps.

For DevSecOps, I used Veracode and SourceClear to scan all locally developed and 3rd-party code so all builds are scanned before getting to the build pipeline; JFrog Xray was used to scan the Docker containers.

Migrating from Heroku to AWS ECS

The client was using a complex application running a blend of interdependent services with different tech stack. The monthly cost was huge for the convenience of Heroku so we decided to move the application to AWS ECS Cluster with AWS Fargate, though the CI/CD part was challenging, but we managed to implement a blue/green deployment model using AWS Code Star.

Skills

Languages

Bash Script, Bash, Python, SQL, Python 2, Python 3, PHP

Tools

AWS Simple Notification Service (SNS), Azure DevOps Services, Amazon EKS, Ansible, Jenkins, NGINX, Nagios, Zabbix, Amazon Elastic Container Registry (Amazon ECR), AWS ELB, AWS IAM, Docker Compose, OpenVPN, Dynatrace, Varnish, Docker Hub, Apache, AWS CodeDeploy, Azure Application Gateway, Chef, Puppet, RabbitMQ, Logstash, Kibana, AWS CloudFormation, Amazon Elastic Container Service (Amazon ECS), Docker Swarm, Google Kubernetes Engine (GKE), Helm, Terraform, Azure Network Security Groups, Azure Logic Apps, Microsoft Azure App Service, Git, PHP-FPM, Kamailio, FreePBX, Elastix, Monit, Slack, Jira, Asterisk, Azure Kubernetes Service (AKS), Artifactory

Paradigms

Automation, Azure DevOps, DevOps, Microservices Architecture, Microservices, DevSecOps

Platforms

New Relic, Linux, Kubernetes, WordPress, Apache2, Docker, DigitalOcean, Azure, Azure Event Hubs, Amazon Web Services (AWS), Heroku, Magento, Sensu, Amazon EC2, Azure PaaS, Apache Kafka, LAMP, LEMP

Storage

Cloudways, Amazon S3 (AWS S3), Datadog, LAMP Server, AWS CodeStar, Redshift, MySQL, Memcached, Redis, Elasticsearch, Redis Cache, Ingres, Azure Cosmos DB, Ceph, GlusterFS, Spring Data Elasticsearch, Azure Active Directory

Other

Monitoring, ECS, Containerization, NFS, AWS Certified Solution Architect, MERN Stack, Autoscaling, AWS DevOps, AWS CodePipeline, Architecture, CI/CD Pipelines, NginxRT, Amazon Glacier, Container Orchestration, AWS Certified DevOps Engineer, SecOps, Azure Resource Manager (ARM), Business Continuity & Disaster Recovery (BCDR), Infrastructure as Code (IaC), SIP, GitFlow, Service Meshes, Redis Clusters, Direct Connect (DC), Configuration Management, Veracode, JFrog

Frameworks

Laravel, Lumen, AWS HA, .NET

Libraries/APIs

Node.js, REST APIs, Amazon EC2 API

Industry Expertise

Security

Education

2014 - 2016

Master's Degree in Computer Systems and Networks

Hamdard University - Karachi, Pakistan

2010 - 2014

Bachelor's Degree in Electronics Engineering

Sir Syed Universtiy - Karachi, Pakistan

Certifications

SEPTEMBER 2020 - SEPTEMBER 2022

Microsoft Certified: DevOps Engineer Expert

Microsoft

SEPTEMBER 2020 - SEPTEMBER 2022

Microsoft Azure Solutions Architect Expert

Microsoft

FEBRUARY 2020 - FEBRUARY 2023

AWS Certified Solution Architect Professional

AWS

JANUARY 2020 - PRESENT

AZ-203

Microsoft