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Sr. Systems Engineer

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Programming
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Demonware
📅
PRO0001ZG Requisition #
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Demonware, a wholly-owned subsidiary of Activision Blizzard, specializes in creating client- and server-side networking software for video games, including titles in the Call of Duty franchise, all Skylanders titles, Destiny and Diablo 3. As a software services company we develop and deploy robust, scalable services to support millions of users, often with rapid turnaround times.

Position Summary
The Infrastructure department is responsible for the design, build and operation of our network of data centres and all infrastructure including network, compute and storage therein. We also have a significant infrastructure footprint in AWS and provide tooling for accounts, IAM, VPC and VPN access into AWS. We are responsible for systems provisioning in our data centres, hardware inventory, DNS and all IP connectivity to our data centres including connectivity to the Internet and AWS. Our goal is to provide reliable data centre and cloud infrastructure to Demonware’s Title, Product and Platform teams. Some of our current projects include data centre-wide virtualization, data centre standardisation, commodity storage solutions and development of best practices for running infrastructure in AWS.

As our hosting platform is evolving we are looking for experienced Systems Engineers to join our Systems Engineering team. You will help improve efficiency in our existing hardware fleet which spans multiple data centres and is in excess of 4,000 physical servers. You will also help us to deploy Infrastructure in the public cloud in a secure, scalable and repeatable way. You will have worked at scale with key abstraction and scheduling technologies such as virtualization, Linux containers, Docker, Openstack, Mesos/Marathon and/or Kubernetes and have practical hands-on experience working with compute hardware in data centres. You will also have practical experience with public cloud providers which will be beneficial as we launch more production services in AWS. In order to provision infrastructure in AWS in a secure and repeatable way we are moving towards infrastructure as code using frameworks such as Terraform. This is a great career opportunity for a highly motivated individual who wants to utilize and extend his or her broad set of skills.

Responsibilities
  • Ownership of all compute systems (IBM/Lenovo) and storage solutions (NFS/Ceph etc) in our data centres along with hardware inventory, provisioning and DNS
  • Be a key player in providing compute and storage infrastructure to other teams in Demonware, both in our physical data centres and AWS
  • Deliver on Demonware’s hosting strategy to virtualise the workloads in our data centres and provide the underlying infrastructure for deployments into AWS. We are also making plans for our next generation hosting platform, which will host scheduled containers in our data centres and AWS via a CI/CD pipeline
  • Working with other teams in Demonware, assist with load testing and qualification of public cloud infrastructure for supporting Demonware services
  • Create and manage tools for AWS user access management and account/VPC creation, VPC peering and cost optimisation
  • Be, or be willing to become, a subject matter expert on network, compute and storage services in the public cloud
  • Act as an escalation point for systems and hardware problems
  • Interact and maintain relationships with data centre remote hands, third party vendors & contractors as required
  • Participate in out of hours on-call as required
Requirements
  • 5+ years of practical infrastructure experience working with network, compute and storage hardware
  • Firm understanding of compute hardware and architecture including rackmounts and blades and provisioning same at scale
  • 5+ years of hands-on Linux administration
  • Firm grasp of core operating system concepts (processes, threading, memory management, file system types, ACLs)
  • Extensive understanding of networking/distributed computing environment concepts
  • Experience in hardware qualification & performance benchmarking
  • In-depth practical knowledge of open source hardware and operating system abstraction technologies: virtualization (preferably KVM) and/or Linux containers (e.g. LXC, Docker)
  • Proven experience with architecting and provisioning services in AWS
  • OpenLDAP experience, architecting and maintaining
  • Strong scripting skills: Unix shell programming and ideally at least one of Python or Perl, to assist with identification and automation of repetitive tasks
  • Strong working knowledge of TCP/IP networking as well as common application protocols
  • Familiarity with common system services, e.g. Cobbler, PXE, DNS/BIND, DHCP/BOOTP, NFS, SNMP, IPMI, RAID
  • Excellent analytical/troubleshooting skills
  • Strong written & verbal communication skills
  • Ability to work and deliver consistently under pressure
  • Ability & willingness to take part in second level on-call rotation
Desired
  • Experience working in 24x7x365 online environments
  • Experience deploying or operating an OpenNebula cloud environment
  • Experience working with container cluster management technologies such as Mesos and Kubernetes
  • Experience describing and operating infrastructure as code using tools such as Terraform and Ansible
  • Experience enabling product teams with Continuous Integration and Continuous Delivery pipelines
  • Experience with Unix like Operating Systems apart from Linux
Demonware by the numbers:
  • 469+ million gamers
  • 3.2+ million concurrent online gamers
  • 100+ games
  • 300,000 + API calls per hour
  • Average query response time of <.03 second
  • 70,000 requests per second at peak
  • 135,000+ metrics a second
地点 :上海

概述 : Demonware 是动视暴雪旗下的全资子公司,负责大型在线游戏的后端服务,如《使命召唤》,《Destiny》和《Diablo III》等游戏,目前在中国的团队负责《使命召唤OL》这款PC平台的在线游戏。作为一家专注于后端服务的技术公司,我们追求服务的健壮性和可扩展性,以应对4.69亿注册用户,每月1320亿api call,以及每秒2500万DB query。

待遇包括 : 具有竞争力的薪资(视经验而定),由年薪和年度绩效考核奖金,医保,补充公积金,可观的带薪假期(25天!)组成,同时注重健康的作息时间(无996现象)

Please note: We do not require agency assistance at this time




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