• Full Time
• Germany
• Posted 2 years ago
• Applications have closed
• Work Visa Required
  CosMicIT
  CosMic IT
  Find Your Dream Job Here
  Greetings #Everyone,
  We at #CosMicIT GmbH are looking for #Performance Test Engineer – CORE
  Locations- #Germany
  Language: #English
  Role type: Fixed Term

JOB DESCRIPTION –

We are looking for a passionate, hard-working Performance Test Engineer who’s willing to take charge of our Quality Assurance team for performance testing of CORE domain & who can closely work with our Network’s/Infrastructure’s/Technology Architect’s/Development’s team to monitor, review & analyze the performance of CORE components within the network and can help in identifying the performance bottlenecks in the system.

ROLES AND RESPONSIBILITIES: As an Individual contributor, you will contribute to create the performance test scripts/scenarios, conduct the performance test execution and performance monitoring exercise to provide the certification of the CORE components & Non-functional end to end scenarios.

• Minimum 6+ years of experience in performance testing (preferably from Telecom domain)
• Must have sound knowledge of performance test life cycle, performance testing techniques/methodologies, performance monitoring and bottleneck identification
• Strong knowledge of various performance test types and their objectives (load, stress, endurance, and volume test)
• Expertise in deriving Performance Business Processes & Test Cases, developing and maintaining performance Test Scripts & Scenarios according to business specification given
• Strong understanding and hands-on experience of performance testing & monitoring tools like Jmeter, Load Runner, Spirent, Accuver, HP Site Scope, Perfmon, Linux/Unix utilities of performance monitoring
• Sound knowledge on performance testing using Network protocols (SIP, Diameter), Webservice/Rest, HTTP/HTML, JSON over HTTP, XML over HTTP protocols
• Good exposure of Packet Core Nodes which should primarily include SGSN, GGSN, MME, PCRF, ePDG, vEPC (vMME, vSAE-GW)
• Good exposure with AMF, SMF, UPF, NRF, NSSF, UDM, UDR, UDSF, PCF etc.
• In-depth knowledge of core network 4G/5G message flows based on 3GPP based protocols like S1AP, NGAP, GTP, Http2, NAS, PFCP, Diameter.
• Thorough knowledge and hands on experience in (4G, 5G NSA/SA), call flow, control plane and data plane functions.
• Ability to fully understand system logs, test tool logs and use this understanding for debugging issues and identifying accurate root causes for the problems seen on the system under test or in the network.
• Thorough knowledge and hands on experience of IMS Core Nodes which should primarily include P-CSCF, S-CSCF, TAS, IPSM-GW, MRFC, MRFP, BGCF, MGCF, I-SBC, DRA, HSS, SMSC.
• In-depth knowledge of IMS call flows as per 3GPPP.
• Good knowledge on the IMS interfaces like Gm, Rx, ISC, Ro, Sh, Mw, Ici, Izi.
• Good understanding of protocols like SIP, Diameter, REST, TCP/IP, DNS, MSRP.
• Experience in with SS7 application level protocols (MAP/CAP/INAP) is a plus.
• Good understanding of NFVi Architecture and VNF Life Cycle Management.
• Experience in K8S is a plus.
• Good Knowledge of Unix/Linux environments, Jenkins & Ansible playbook.
• Basic understanding of conducting performance test execution on cloud-based environments
• Experience in working on Agile methodologies, SCRUM framework, KANBAN dashboard etc.
• Hands-on knowledge of cloud-native application architectures, micro-services
• Experience in testing enterprise application, distributed application and networking systems
• Should have strong communication, collaboration & team building skills with proficiency at grasping new technical concepts quickly & utilize the same in a productive manner
• Should Possess Problem-Solving Skills, Ability to Follow Industry standards and procedures, Quickly Master new concepts and Applications
• Must be flexible to travel if needed.

QUALIFICATION REQUIREMENTS

• Bachelor’s/Master’s degree in Telecommunication Engineering, Computer Science, Computer Information System or any equivalent degree.
• 6 to 10 years of professional experience in Performance testing of CORE domain.
• Ability to communicate written and verbally English.
  MINIMUM REQUIREMENTS (Knowledge, Skills, Abilities)

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

• Must have hands-on experience of Linux and Kubernetes environments.
• Experience of Packet Core Nodes – SGSN, GGSN, MME, PCRF, ePDG, vEPC (vMME, vSAE-GW)
• Experience of AMF, SMF, UPF, NRF, NSSF, UDM, UDR, UDSF, PCF etc
• Experience in (4G, 5G NSA/SA), call flow, control plane and data plane functions
• experience of IMS Core Nodes which should primarily include P-CSCF, S-CSCF, TAS, IPSM-GW, MRFC, MRFP, BGCF, MGCF, I-SBC, DRA, HSS, SMSC
• Good knowledge on the IMS interfaces like Gm, Rx, ISC, Ro, Sh, Mw, Ici, Izi.
• Good understanding of protocols like SIP, Diameter, REST, TCP/IP, DNS, MSRP.
• Expertise in product /capacity testing using simulators/scripting /open source tools
• Knowledge and Certification of Linux and Kubernetes is added advantage.
• Strategic Thinking Skills
• Analytical Skills
• Telecommunication technical knowledge
• Well-developed Communication Skills
• Strong Team collaborations needed

If any of these openings sound familiar to you or any of your known networks, please share the resume/CV to CV@cosmic-it.com
Any references would also be accepted.
Regards,
CosMicIT GmbH, Germany
CosMicIT Informatics India Pvt Ltd.
www.CosMic-IT.com | www.CosMic-IT.in
https://www.linkedin.com/company/cosmic-it

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performancetesting #core #engineer #5g #4g #packetcor

ROLES AND RESPONSIBILITIES: As an Individual contributor, you will contribute to create the performance test scripts/scenarios, conduct the performance test execution and performance monitoring exercise to provide the certification of the CORE components & Non-functional end to end scenarios.

• Minimum 6+ years of experience in performance testing (preferably from Telecom domain)
• Must have sound knowledge of performance test life cycle, performance testing techniques/methodologies, performance monitoring and bottleneck identification
• Strong knowledge of various performance test types and their objectives (load, stress, endurance, and volume test)
• Expertise in deriving Performance Business Processes & Test Cases, developing and maintaining performance Test Scripts & Scenarios according to business specification given
• Strong understanding and hands-on experience of performance testing & monitoring tools like Jmeter, Load Runner, Spirent, Accuver, HP Site Scope, Perfmon, Linux/Unix utilities of performance monitoring
• Sound knowledge on performance testing using Network protocols (SIP, Diameter), Webservice/Rest, HTTP/HTML, JSON over HTTP, XML over HTTP protocols
• Good exposure of Packet Core Nodes which should primarily include SGSN, GGSN, MME, PCRF, ePDG, vEPC (vMME, vSAE-GW)
• Good exposure with AMF, SMF, UPF, NRF, NSSF, UDM, UDR, UDSF, PCF etc.
• In-depth knowledge of core network 4G/5G message flows based on 3GPP based protocols like S1AP, NGAP, GTP, Http2, NAS, PFCP, Diameter.
• Thorough knowledge and hands on experience in (4G, 5G NSA/SA), call flow, control plane and data plane functions.
• Ability to fully understand system logs, test tool logs and use this understanding for debugging issues and identifying accurate root causes for the problems seen on the system under test or in the network.
• Thorough knowledge and hands on experience of IMS Core Nodes which should primarily include P-CSCF, S-CSCF, TAS, IPSM-GW, MRFC, MRFP, BGCF, MGCF, I-SBC, DRA, HSS, SMSC.
• In-depth knowledge of IMS call flows as per 3GPPP.
• Good knowledge on the IMS interfaces like Gm, Rx, ISC, Ro, Sh, Mw, Ici, Izi.
• Good understanding of protocols like SIP, Diameter, REST, TCP/IP, DNS, MSRP.
• Experience in with SS7 application level protocols (MAP/CAP/INAP) is a plus.
• Good understanding of NFVi Architecture and VNF Life Cycle Management.
• Experience in K8S is a plus.
• Good Knowledge of Unix/Linux environments, Jenkins & Ansible playbook.
• Basic understanding of conducting performance test execution on cloud-based environments
• Experience in working on Agile methodologies, SCRUM framework, KANBAN dashboard etc.
• Hands-on knowledge of cloud-native application architectures, micro-services
• Experience in testing enterprise application, distributed application and networking systems
• Should have strong communication, collaboration & team building skills with proficiency at grasping new technical concepts quickly & utilize the same in a productive manner
• Should Possess Problem-Solving Skills, Ability to Follow Industry standards and procedures, Quickly Master new concepts and Applications
• Must be flexible to travel if needed

To perform this job successfully, an individual must be able to perform each essential duty satisfactorily. The requirements listed below are representative of the knowledge, skill, and/or ability required. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions.

• Must have hands-on experience of Linux and Kubernetes environments.
• Experience of Packet Core Nodes – SGSN, GGSN, MME, PCRF, ePDG, vEPC (vMME, vSAE-GW)
• Experience of AMF, SMF, UPF, NRF, NSSF, UDM, UDR, UDSF, PCF etc
• Experience in (4G, 5G NSA/SA), call flow, control plane and data plane functions
• experience of IMS Core Nodes which should primarily include P-CSCF, S-CSCF, TAS, IPSM-GW, MRFC, MRFP, BGCF, MGCF, I-SBC, DRA, HSS, SMSC
• Good knowledge on the IMS interfaces like Gm, Rx, ISC, Ro, Sh, Mw, Ici, Izi.
• Good understanding of protocols like SIP, Diameter, REST, TCP/IP, DNS, MSRP.
• Expertise in product /capacity testing using simulators/scripting /open source tools
• Knowledge and Certification of Linux and Kubernetes is added advantage.
• Strategic Thinking Skills
• Analytical Skills
• Telecommunication technical knowledge
• Well-developed Communication Skills
• Strong Team collaborations neede