nailing that devops interview - an anti-guide. nir cohen, gigaspaces

ananti-guide

NirCohen@thinkops

http://goo.gl/6HEJpD

http://goo.gl/B7EhHz

(Purpose)

RequirementsThedesiredcandidatewillhaveB.Scfrom4yearsofcollegeoruniversity,atleast10yearsofinfrastructuredevelopmentexperienceand/ortraining,alongwith:–3+yearsofAWSexperience.–5-7yearsofgeneralDevOps/WS/DB/infrastructureexperience.–PracticalexperiencewithmostifnotallcomponentsofAWS:EC2,Beanstalk,ELB,Route53,S3,Cloudfront,SNS,SWF,SQS,RDS,DynamoDB,ElastiCache,IAM,CloudFormation.–FamiliaritywithSOAprinciplesandpractice.–Experiencereading,analyzing,andabsorbingAWSwhitepapers,architecturaldocuments,andtechnicalbriefs.–Servicerolloutpluscompletemulti-cycleSDLCexperience,usingChef,Puppet,CloudFormation,etc.–ExposuretoAWSauxiliarytoolsandpractices(e.g.,ChaosMonkey,Asgard,etc).–Hands-onexperiencewithmonitoringtools,intrusiondetectionmechanisms,andvulnerabilityassessmenttoolsandpractices.–Generalscriptingwizardry.–Self-motivatedteamplayerwhodemonstratesinitiativeandflexibility.–Strongorganizationalskills,withtheabilitytohandleandprioritizemultipletasks.

AdditionalpreferredskillsBeyondtherequirementsabove,thepreferredcandidatewillhave:–FamiliaritywithiTunes/AppStorefundamentals.–SQLandNoSQLexperience.–FamiliaritywithJDBCandvariousflavorsofSQL/NoSQL.–Experiencedesigningsolutionsforaccesscontrol,userauthentication,andservicesecurityingeneral.–Strongverbalandwrittencommunicationskills.

DesignBuildMonitor

AnalyzeMaintain!

complex,potentiallylargescale,highlyavailable

productionenvironment.

rememberhowtoconfigureaGRETunnelinJunos(http://goo.gl/5oBpRV)

rememberwhichportKerberosrequires(http://goo.gl/aZ8cFi)

rememberhowtomoveazonefilebetweenDNSservers(http://goo.gl/Z2QR0r)

Self-motivatedDevOpsEngineerwithover3.8yearsofITexperienceinSystemsEngineering,DevelopmentandOperations.EsteemedtoworkonFree/OpenSourceSoftware.

TechnicalSkillsetSummary1.SystemAdministration:GNU/Linux(Debian,Ubuntu,Arch,CentOS,RedhatandZentyal)2.VirtualizationandCloudServices:LXC,KVM,OpenVZ,AWS,DropletsandCPanel.3.Configuration/BuildandRelease:Ansible,Make,Projspace,Go(learning),Chef(learning)4.ProgrammingLanguages:Python,Ruby(learning),ShellScripting,C,C++andJava5.DatabaseandDirectoryServices:OpenLDAP,Mysql,MariaDB6.VersionControlSystems:GIT,Bazaar,Subversion,GitLab7.NetworkingTools/Services:Nagios,ntop,SSH,DHCP,DNS,FTP,Rsync,Squid,Iptables8.WebTools/Technologies:Apache,Nginx,Drupal,Mediawiki,Redmine,Piwik,PhpBB

Nowlet'sassumethatyousomehowmanagedtogain experiencewithall

ofthesetoolsinjustover3.8years.

Experiencewith:Nagios,Statsd,Graphite,Logstash,Elasticsearch,Kibana,collectd.

Lovesresearchingandimplementingmonitoringsolutionstochallengingarchitecturalproblems.

4yearsofexperienceprogrammingwithRuby,Python,AWK,Shell,Batch,VBS,C,C++,C#,Java,

Javascript,JRuby,Jythonandeverythingelse.

KnowsRubywellbutampassionateaboutlearningnewlanguagesondemand.Here'saprojectI'vebeen

workingon:LINK

Managedthousandsofserverson5differentOSdistributionsin3differentCloudproviders.

Workedonaprojectthataimedtoimproveinfrastructuremanagementandprovisioningon-

premiseandintheCloud.ReducedIaaSOpexby15%over3months.

Thereisnotalentshortage-AndrewClay-Shafer-

ACultureofInnovation-PattyMccord-

DevOpsHiring-DaveZweiback-

ThePuzzleofmotivation -DanPink-

StopHiringDevOpsExperts(andstartgrowingthem)-JezHumble

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FastDelivery-AdrianCockcroft-

EngineeringYourculture-OrenEllenbogen-

NetflixCulture-

RichJones-HowtohireDevOps-

TimLockwood-HowtohireaDevOpsEngineer-

VolkerWill-DonothireaDevOpsEngineer-

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