Winston Han's Location
Canada, Canada
Winston Han's Contact Details
Winston Han work email
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About Winston Han
Experienced Network/Cloud Architect and IoT DevOps with a demonstrated history of working in the telecommunications industry and enterprise. Advance skills in DevOps/SRE and Software Defined Network and Cloud (AWS/Azure/GCP/OpenStack/OpenShift/Kubernetes/Docker/ISTIO/CICD/Golang/Linux/Networking/SDN).Technical Skills• 10+ years of experience in IT, Telecom, networking, SDN• 10+ years of experience in SDN, NFV/VNF, IoT, Cloud and DevOps/SRE• Cloud certificate - AWS Certified Solutions Architect, experience with AWS and Azure and GCP• Terraform certificate• Kubernetes certificate CKA• Strong Experience with Kubernetes, including Networking ingress, gateway, Istio (service mesh), controller, Linux/Docker network virtualization, scheduler YuniKorn, CRD, GitOps with argoCD.• Strong technical experience with DevOps/SRE Automation. design and configure CI/CD (continuous integration and deployment) automation pipeline with GitLab pipeline or Azure DevOps pipeline or Github actions, implementation of GitOps, performing all changes to the configuration via files stored in Git. Automation cloud deploy tools Terraform and Ansible for on-premises and cloud applications• Data engineering and Machine learning model training, register, deploy (MLflow model) with Azure DevOps pipeline, Machine learning studio, databricks (Spark) cluster, Unity Catalog and lifecycle management MLOps• Networking certificate - Juniper certificate (JNCIA/JNCIS-Service Provider)• Programming skill and tools: Linux BASH Shell, Python, Golang, JavaScript, GitLab, GitHub, JIRA, Azure DevOps, VS code• Virtualization skill: Docker, Container registry, Kubernetes (Service mesh), VMware ESX, OpenStack, KVM, Hyper-V • Develop Micro service application and distributed systems with container and TDD (Test-Driven Development)• Experience with developing REST API and writing automated API testing with SoapUI and GUI testing with Selenium• Extensive experience with transport network (Fibre, Microwave, HSPA+ and 4G LTE)• Research, design and deploy best practices solution for public/private cloud and data-centre • Good knowledge of Information Systems security including Firewall, IPsec/GRE/SSL VPN, Linux IPFW, Iptables, Linux Bridge, veth, tun/tap.• Good knowledge of Routing protocol: OSPF, IS-IS, BGP, MP-BGP, MPLS-VPN, Virtual router, VRF, VxLAN
Winston Han's Current Company Details
Winston Han Work Experience Details
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Cloud Sre And DevopsAviationCanada
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Cloud DevopsSplunk Jan 2024 - Jul 2024San Francisco, California, Us- implementation of GitOps, manual changes to the system are deprecated, and convert all changes to the configuration yaml files stored in Git.- Automate infrastructure deployment (Kubernetes clusters) from manual runbook steps using Golang/Python/Yaml and Gitlab CICD pipeline on Slunk cloud platform (SCP)- Integrate pipeline to boot strap service cross EKS/AKS cluster and Kops Kubernetes cluster- Automatically generate configuration yaml via template and scripting - Maintain Service mesh (Istio) to respond to requirements of security (mTLS) and L7 traffic engineering and gateway.- Secrets Management using HashiCorp vault KV secret engine and automatic configuration for Kubernetes application secrets by injecting a Vault Agent container -
Cloud ArchitectTeck Resources Limited Jan 2022 - Dec 2023Vancouver, British Columbia, Ca- Design and implement digital transform project, evolve classic data warehouse to Unifying event streams with a unified log using Kafka, Lambda, data lake, ADF, Kubernetes, Spark, databricks, Flink- Develop Automation and Infrastructure as Code (IaC) solutions using HashiCorp Terraform enterprise and HashiCorp Vault, Consul and ISTIO, integrate Kubernetes application secret management with External Secrets Operator- Design and build a microservices-based cloud orchestration engine to deploy cloud resources. Implemented REST API endpoints using FastAPI and pydantic, improving performance and robust error handling. - Design, deploy, and optimize highly scalable, fault tolerant cloud solutions in support of data engineering, machine learning and analytics projects with Azure services including Azure Kubernetes, ML studio, DataBricks, Data Factory, Synapse, etc- Designing and building Microsoft Azure solutions including Compute (VM, AKS, Container, Spark cluster), storage (ADSL2, keyvault), App service (function app, web app, App gateway), networking (NSG, firewall, private endpoint, DNS)- Aggregate system logs and events from Azure monitor to on-prem Splunk via Azure EventHub to On-perm Kafka and setup Dashboard for performance monitoring- Implement API solution with APP gateway, API management, WebApp/Functions and AuthZ/AuthN with OIDC and deploy with Terraform Code- Follow ML Ops standard methodologies of automation, versioning, monitoring, and security to setup ML framework, and provide developer repo via Gitlab pipeline and template (SciKit-Learn)- Deploy data catalog product DataHub via Terraform Helm and integrate with Auto0/AAD. Ingest different data resource (MySQL /Postgres/ eventhub schema/ Databricks Unity catalog etc), Build custom metadata model with REST/GraphQL API and Python SDK.- Develop Gitlab pipeline and runner to automate product deployment and setup registry for artifact ( Azure container registry and Gitlab TF module registry) -
Devops Cloud EngineerBell Sep 2020 - Dec 2021Montreal, Quebec, Ca- System detail architecture design for IOT projects (SmartCity/SmartBuilding/SmartSupplyChain) - Define IOT device message format, data ingestion method, Data processing and visualization. Collaborate with data engineering teams for batch data ingestion and data extraction with Apache PySpark, ingesting stream data from Apache Kafka and defining transformations and filters on a Streaming DataFrame, Monitoring and optimize Spark jobs with Caching, persistence, partitioning and repartitioning - Measure application performance with Dynatrace, install agent (OneAgent), metric forwarder (Prometheus) and event forwarder (Webhook, API), integrate with alarm/ logging/reporting system to perform data trend analysis and end to end troubleshooting - Automate with source code management using GitLab, MR & PR workflows, code reviews. Integrate CI/CD testing and deployment pipelines with different tools (Ansible, Helm, Terraform, argoCD) - Build, automate & maintain shared hybrid cloud infrastructure via terraform/CDK/CloudFormation including Azure Cloud, Google GCP, OpenStack IaaS, Kubernetes/OpenShift PaaS (monitoring, logging, tracing, alarming, ...) - Secrets Management using HashiCorp vault and Azure Key vault- Build hybrid production services cross DBs (mongoDB, Redis, CosmosDB), DNS, Tyk API Gateway, VPN, SSO - Implement and optimize Azure services in IoT ecosystem (AKS, Ingress, CosmosDB, EventHubs, IoT Hub, DPS, Service Bus etc) - Design and integrate unified logging and alarming cross cloud and on-premises with FluentD, StreamSets, Prometheus, Dynatrace, DataDog, API gateway, Grafana, Confluent Kafka, MQTT, PagerDuty, slack, Elastic Search for microservice - Develop/implement/document API and maintain TYK API gateway REST and GraphQl - Implement a Redhat SSO (Redhat Keycloak) platform and service mesh Istio for multiple use cases - (OpenID Connect, JWT token, OAuth2, PKI & mTLS, Kerberos for Kafka.) hosted on on-prem OpenStack infrastructure and Azure Cloud -
Devops Iot AutomationSchneider Electric Feb 2020 - Sep 2020Rueil Malmaison, Paris, Fr• Work with Product Owner to maintain a Scaled Agile Framework (SAFe) Program and Define PI (Program Increment) for product develop • Convert Smart building Product system requirement to Epic and user stories. and design test cases with Gherkin format and finalize the identification of automation scenario, unit test scenario to support TDD (Test-Driven Development)• Design and automate test for IOT devices feature validation and verification test• Develop IoT device emulator with multiple virtual techniques( Windows Docker container and Hyper-V)• Maintain release management system with Git and documentation system with Jama.• Develop Robot framework (open source Python automation framework) customize library (BACnet) and script to perform automation testing.• Practice agile Development with Sprint meetings (PI Planning, Sprint Planning, Daily Scrum Stand-up, Sprint Review and Retrospection) using JIRA and Mural -
Devops - Network Automation And CloudCgi Jul 2019 - Dec 2019Montreal, Quebec, Ca• Develop Docker container/LXC and Kubernetes (K8S) over Cisco IOT cloud platform (IOX) for multiple applications.• Integrate record management system with BMC ITSM using Python Flask framework.• Develop multiple micro-service applications with containers and K8S• Build and Optimize Automation CI/CD environment with Jenkins pipeline (groovy).• Integrate version control system (Git) and Jenkins to automatic trigger build/test with pipeline. • Design Dockerfile to create docker image and compose K8S YAML file for deployment and service to deploy POD. • Define REST API and maintain WADL, perform automatic API test with Postman Test and SoapUI.• Transfer log file and data to confluent server and import to ELK (Elasticsearch, Logstash, and Kibana) for post-analyst.• Setup service container (BGP peer) to manage the traffic container and maintain the BGP routing.• Automatic configuration file updating via Cisco IOX Local Manager API. -
Devops - Network Automation And CloudCn Jan 2018 - Jul 2019Montreal, Qc, Ca• Network automation projects using Python for network device NOKIA NSP 5620 / NOKIA Router 7750+7705 / Cisco routers• Configuration audit and visualization- Build on Python Django framework- perform routine audit by collecting network configuration status (E.g. Port utilization rate) via NSP REST API- post processing raw data using Python pandas- Provide visualization with matplotlib- Present result to SharePoint• Maintain Configuration management system (Java Springboot application)- Operate and maintain Java SpringMVC web service• Automation Web GUI configuration for cellular router - Using Python Selenium to automate integration of Digi cellular router - Automation Web GUI testing with Selenium2, trace Front End with Firebug And Chropath Xpath for FireFox and Google Chrome• Migration dashboard- Perform Ping test toward hundreds end point using multithreading in Python- use message queuing server (MQTT) to Loose Coupling- Use WebSocket to handle long connection to update real-time status• Integrate Traffic generator for automation test- Using IXIA GUI to compose traffic script to perform topology, protocol, QoS and regression test- using IXIA REST API (Openixia) python script to configure traffic flow for inter-connectivity test.• Maintain NSP event handler with Java JMS- Collect and export NSP alarm event with Java.• Deploy Docker container solution to provide console connection- Using Docker container to build HTML5 client remote access with Apache Guacamole behind firewall• Automation configuration tool- Program Web UI front-end with HTML and JavaScript front-end to handle user interact - Setup Django framework back-end to host self-developing tools- Using bitbucket (Git enterprise) to maintain automation script -
Sdn/Cloud ArchitectNokia Dec 2016 - Dec 2017Espoo, Southern Finland, Fi• Working with Nokia (Alcatel-Lucent) IP Routing and Transport - Global Network Design and Engineering (GNE) team provides Professional Services in support of real-world deployments of Advanced SDN Solutions including SDN-DC, SDN-WAN and SDN security. • Lead Operational & Engineering Consultation Workshops to establish an optimal Solution Design that meets the Customer’s objectives and Industry Best Practices• Create design (High Level Design & Low-Level Design), implementation, operational and test documentation that enable a successful Solution Deployment for cloud services.• Cloud infrastructure Development, Integrate Nuage SDN (Software Defined Network) Data centre solution with variable Cloud Management Systems (OpenStack, VMware, kubernetes) and different hypervisors (VMware ESXi NSX, KVM, Docker) and hybrid cloud (AWS, Azure, GCP).• Integrate Nuage SD-WAN+NFV/VNF solution (VXLAN/EVPN), using VSD as the PKI Infrastructure to setup openflow and XMPP over TLS/SSL with EJBCA• delivering professional services to external Customers, from the initial detailed Solution Design, through to Implementation and Customer Acceptance customization, including proof of concepts, Solution Design Consultation, Stand-Alone and Inter-Operability Testing, Customer training and on-site support -
Network/Cloud Architect (Ericsson Canada)Ericsson Jan 2009 - Nov 2016Kista, Stockholm, Se• Create solutions through activities in network design, planning and deployment• Work with developing unit to design network infra in Data Center to support NFV/VNF/ OpenRAN• Integration and Verification virtualization core nodes on Ericsson Cloud system (Mirantis openstack)• Develop solutions and tools based on technical requirements (DevOps)• Collaborate with tester to define test strategy and test plan for IP backbone • Maintain security policy (Juniper SRX and Palo Alto Network) and setup VPN for security connection• Configure and integrate nodes and OSS/BSS over cloud platform• Maintain a stable environment and optimizes the network as necessary• Trouble shoot networking issue -
Network Performance Consultant (Ericsson Usa)Ericsson Aug 2008 - Dec 2008Kista, Stockholm, Se• T-Mobile US mobile network planning, deployment and rollout.• Project requirements gathering, evaluating and consulting.• Network end to end performance (throughput /bandwidth /delay /packet loss) improvement• Transport network (Ethernet over Microwave) planning, deployment, testing and tuning.
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Umts Network Engineer (Ericsson Saudi Arabia)Ericsson Feb 2008 - May 2008Kista, Stockholm, Se• Configure Cisco router to deploy transport network• Remote login via RSG to trouble-shooting and error log collection• Define O&M link in MGW and O&M router• Analyse and generate DT and parameter setting• To upgrade device software packages• Monitor System Performance
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Radio Engineer (Ericsson Canada)Ericsson Jun 2005 - Sep 2007Kista, Stockholm, Se• Support GSM/CDMA/UMTS network in North-America Market• Handle CSR and provide solution to customer using SMS and Primus• Remote integration Node-B in RICC• Trouble shooting in DT and parameter setting• Technical Helpdesk for US and Canadian customer • Remote login via RSG to trouble-shooting and error log collection• Radio Network problem investigation and optimization• To upgrade software packages• Emergency handling
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Rf Consultant (Ericsson Indonesia)Ericsson Apr 2004 - Oct 2004Kista, Stockholm, Se• Define cellsight statistic template to fetch system NPI for CDMA• Analyse STS data to figure out radio network problem • Perform initial tuning to achieve NPI proposal• Drive test and analyse data• Parameter modification and optimization• Antenna tuning and radio parameter change • Presentation and knowledge sharing to customer• RBS survey and trouble shooting
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Senior Service Engineer (Ericsson China)Ericsson Oct 2002 - Feb 2004Kista, Stockholm, Se• Integration and roll out GSM MSC/BSC/RBS• Cell planning and RF optimisation for Ericsson GSM 900/1800 system.• Maintain the quality within the operator’s targets: dropped call rate, SDCCH drop call rate, TCH/SDCCH congestion, HO failure rate, TCH availability, etc.• Tuned and integrated CDMA repeaters• Optimised intra-BSC handoff and inter-MSC handoff• Training for 1xRTT / CDMA2000 EVDO • GSM tools used: TEMS investigation GSM1.2, GIMS, IPOS,SPOS, Deskcat, OSS, eXceed.• CDMA tools used: Qualcomm CAIT, Agilent E74xx, Ericsson TEMS Deskcat, TEMS investigation for CDMA
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Software Test Engineer (Ericsson Europe Lab)Ericsson Mar 2002 - Sep 2002Kista, Stockholm, Se• Work for Product Line Maintained • Software fault analysis and handling using MHS• Check if the correction is applicable for specific Application Systems• Manual desk check applying standard check lists• Function test of the correction on a test exchange or in a simulated exchange STP(SEA)
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Radio Engineer (Ericsson China)Ericsson Sep 1999 - Feb 2002Kista, Stockholm, Se• To co-ordinate the CSRs (Customer Service Requests) to make sure that the response and resolution time requirements as described in the contract are met• To check the problem description against the repository database (PRIMUS) to find available solutions and apply the available solutions or suggestions to speed up the resolution time• To take ownership of the customer reported CSR’s and to be the driver to get CSR’s resolved in time for the customer• Radio Network Performance Improvement• Participate in integration tests towards other operators and network elements
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Senior Rf EngineerItaltel Sep 1996 - Aug 1999Roma, It• Site surveys and site audits• Drive tests and data analyses• BSC network tuning and parameter audit• BTS troubleshooting• Statistic data collecting and processing
Winston Han Skills
Ip
Telecommunications
Wcdma
Lte
Firewalls
Extreme Switch
Routers
Juniper
3g
Umts
Networking
Internet Protocol
Sdn
Openstack
Ovs
Ansible
Kubernetes
Docker
Winston Han Education Details
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Communication University Of ChinaElectrical And Electronics Engineering
Frequently Asked Questions about Winston Han
What company does Winston Han work for?
Winston Han works for Aviation
What is Winston Han's role at the current company?
Winston Han's current role is Cloud SRE and DevOps.
What is Winston Han's email address?
Winston Han's email address is wi****@****son.com
What schools did Winston Han attend?
Winston Han attended Communication University Of China.
What skills is Winston Han known for?
Winston Han has skills like Ip, Telecommunications, Wcdma, Lte, Firewalls, Extreme Switch, Routers, Juniper, 3g, Umts, Networking, Internet Protocol.
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