Senior DevOps & Linux Infrastructure Engineer

Role & responsibilities

1.Linux&DataCenterInfrastructure(CriticalRequirement)

• AdvancedLinuxadministration(Ubuntu,RHEL,CentOS,Debian).
• ExtensiveexperiencemanagingproductionLinuxserversinon-premisesdatacenters.
• Physicalserverprovisioning,OSinstallation,configuration,performancetuning,and troubleshooting.
• Strongknowledgeofsystemd,SSH,PAM,cron,Linuxpermissions,kernel parameters,andsystemsecurity.
• Advancedstorageadministration:LVM,RAID,NFS,iSCSI,filesystems,anddisk performanceoptimization.
• Virtualizationtechnologies:ProxmoxVE,KVM,VMware,andHyper-V.
• Understandingofclusteredvirtualization,livemigration,highavailability,and disasterrecovery.
• KnowledgeofdistributedstoragetechnologiessuchasCephishighlydesirable.
• Experiencewithenterpriseserverhardware,DelliDRAC,IPMI,firmware
• management,andhardwaretroubleshooting.
• StrongunderstandingofLinuxperformanceanalysis,resourceoptimization,and capacityplanning.

2.Networking&InfrastructureSecurity

• StrongunderstandingofTCP/IP,DNS,DHCP,routing,VLANs,NAT,andfirewalls.
• ExperiencewithloadbalancingusingHAProxy,Nginx,andAWSApplicationLoad Balancers.
• SSL/TLScertificatemanagementandHTTPStroubleshooting.
• ExperiencewithVPNs,site-to-siteconnectivity,andhybridcloudnetworking.
• KnowledgeofLinuxfirewalls,iptables/nftables,SSHhardening,andaccesscontrols.
• Understandingofnetworkredundancy,bonding,LACP,andhigh-availability networking.
• Experiencetroubleshootingcomplexinfrastructureandapplicationconnectivity
• issues.

3.AWSCloudInfrastructure(StrongExperienceRequired)

• Hands-onexperiencewithAWSEC2,VPC,IAM,S3,RDS,Route53,CloudFront,
• CloudWatch,andElasticLoadBalancing.
• ExperiencewithAWSECS,EKS,ElasticBeanstalk,andcontainer-based
• deployments.
• AWSnetworking,NATGateways,VPN,securitygroups,andprivatenetworking.
• ExperiencemanagingproductionAWSinfrastructure,backups,monitoring,and disasterrecovery.
• Infrastructuresecurity,IAMleast-privilegepolicies,andsecretsmanagement.
• AWScostoptimization,resourcesizing,andinfrastructurescalability.
• Experiencewithmulti-accountAWSenvironmentsandinfrastructuremigrations.

AWScertifications(SolutionsArchitect,SysOps/CloudOps,orDevOpsEngineer)

• arehighlypreferred.

4.WebServers,Databases&Middleware

• AdvancedadministrationandtroubleshootingofApache2,Nginx,andHAProxy.
• MySQLadministration,replication,clustering,backup,restoration,andperformance tuning.
• ExperiencewithPerconaMySQLorPerconaXtraDBClusterisanadvantage.
• Redis,RabbitMQ,Elasticsearch,andOpenSearch.
• UnderstandingofPostgreSQLadministrationisdesirable.
• ExperiencesupportingMagento2andotherPHP/Node.js-basedapplications.
• PHP-FPMconfiguration,optimization,andtroubleshooting.
• Experiencewithreverseproxies,caching,applicationscaling,andhigh-availability architectures.
• StrongBash/Shellscriptingskills;Pythonscriptingispreferred.

5.Containers,CI/CD&DevOpsAutomation

• Stronghands-onexperiencewithDocker,DockerCompose,andcontainer
• networking.
• ExperiencedeployingandmanagingcontainerizedworkloadsonAWSECSand Kubernetes/EKS.
• Jenkins,AWSCodePipeline,CodeBuild,andCodeDeploy.
• Git-basedworkflowsusingGitHubandBitbucket.
• ExperiencewithGitHubActionsishighlydesirable.
• StrongBash/Shellscriptingskills;Pythonscriptingispreferred.
• InfrastructureasCodeusingTerraform,Ansible,orAWSCloudFormation.
• Automatedapplicationdeployments,rollbackstrategies,andreleasemanagement.
• Experiencedesigningandmaintainingsecure,reliableCI/CDpipelines.
• Experiencedesigningandmaintainingsecure,reliableCI/CDpipelines.
• Experiencedesigningandmaintaining

6.Monitoring,Logging&Reliability

• ExperiencewithmonitoringtoolssuchasZabbix,Prometheus,Grafana,CloudWatch, andNewRelic.
• CentralizedloggingusingGraylog,ELK,orOpenSearch.
• Proactiveinfrastructuremonitoring,alerting,andperformanceoptimization.
• Productionincidentresponse,rootcauseanalysis,andpreventiveactions.
• Infrastructurecapacityplanning,availabilitymanagement,anddisasterrecovery.
• Experienceimplementingbackupstrategiesandvalidatingrecoveryprocedures.
• UnderstandingofinfrastructureSLAs,uptime,andoperationalreliability

KeyResponsibilities

• OwnandmanageproductionLinuxinfrastructureacrosson-premisesdatacenters
• andAWScloudenvironments.
• Administerphysicalservers,virtualizationclusters,storage,andnetworking infrastructure.
• Designandmaintainhighlyavailable,secure,andscalableinfrastructure architectures.
• Leadinfrastructuretroubleshooting,performanceoptimization,andproduction incidentresolution.
• ManageAWSservices,networking,security,monitoring,andcostoptimization.
• Maintainwebservers,databaseclusters,middleware,andapplicationinfrastructure.
• Design,implement,andimproveCI/CDpipelinesanddeploymentautomation.
• ManageDockerandcontainerorchestrationenvironments.
• DevelopautomationscriptsandInfrastructureasCodesolutions.
• Implementinfrastructuresecuritybestpractices,patching,backups,anddisaster recovery.
• Planinfrastructureupgrades,migrations,andcapacityexpansion.
• Collaboratewithdevelopers,QA,andengineeringteamstoimproveapplication reliabilityanddeploymentefficiency.

MentorjuniorDevOpsengineers,reviewtechnicalimplementations,andmaintain infrastructuredocumentation.

Participateincriticalproductionincidenthandlingandon-callsupportasrequired.

Preferred candidate profile

• Minimum4+yearsofprofessionalexperienceinDevOps,Linuxsystem
• administration,cloudengineering,orinfrastructureoperations.
• Provenhands-onexperiencemanagingproductionLinuxserversindatacenter
• environments.
• StrongpracticalexperiencewithAWSinfrastructureandservices.
• Experiencewithvirtualization,networking,storage,andinfrastructure
• troubleshooting.
• StrongunderstandingofCI/CD,Docker,Git,andautomation.
• Abilitytoindependentlyinvestigateandresolvecomplexproductionissues.
• Experienceworkingwithhigh-availabilityandbusiness-criticalsystems.
• Stronganalytical,communication,andproblem-solvingskills.

Perks and benefits

• Industry standard Perks & Benefits provided.