Summary
Overview
Work History
Education
Skills
Certification
Disclaimer
Timeline
Generic

Abhishek Srivastava

Technical lead Cyber Security product
Noida

Summary

Willing to work as a key player in challenging and creative environment offering more than 10+ years of experience across IT Telecom domains. Seeking assignments in Product based and Service Based organizations. Seeking a challenging job in the field of IT Telecom Service assurance /Project Management /Incident Management/ Change Management using latest technologies and to work with organization, which gives me responsibilities & challenges along with the opportunities to grow.

Protocol Tester, Technical Support & Operations of telecom /IT Products (Voice Domain, Billing Domain, Messaging Domain and Lawful Interception Domain).

Overview

11
11
years of professional experience
4
4
years of post-secondary education
5
5
Certifications

Work History

Technical Lead Security(Lawful Domain)

Cognyte
07.2019 - Current
  • Skills =DevOps ,Jenkins ,Grafana,Prometheus ,Hive ,GPDB ,Kubernetes ,VOIP, ISUP, Linux, SQL, RTP, SDP, SBC, Packet Data ,Windows ,ETSI and CALEA Lawful Interception standards
  • About Project → Cognyte (Formerly Verint) sells software and hardware products for customer engagement management, security, surveillance, and business intelligence.Lawful Interception | Cyber-Intelligence | Product Support | Deployment | Operations | Analytics | GSM |Satelite Communication
  • Verint have deployed their products in more than 100 Countries all over the world.
  • Demonstrated history of working in the Cyber Intelligence and IT services industry. Skilled in Project Operations , Virtualization ,SQL, Analytical Skills, System Administration, and Troubleshooting.
  • Professionally and efficiently plan, execute and support the integration aspects of complicated communication & cyber intelligence solution
    Hundreds of customers rely on our solutions to accelerate and conduct investigations and derive insights, with which they identify, neutralize, and tackle threats to national security and address different forms of criminal and terror activities.
    The Cyber field requires constant adaptability, self-motivation and a keen interest to learn new things
  • In this project our Mediation devices interact with Customer Switches to intercept the traffic over X1 ,X2 and X3 interfaces and send raw data to backend for Decoding and Processing
  • We have tie-up with major Law enforcement agencies and telecom Operators
  • We handle all type of traffic (SS7,SIP,3g ,4g and 5g)
  • Responsibilities Working as a Technical expert (L3)for Lawful interception systems Global responsibility on integration and installation of Verint products at customer site
  • Analysis and troubleshooting skills in systems based multipart technology
  • Troubleshooting of OWA, , ASR, ACD, High PDD, FAS, No RBT ,Audio Speech, Call Failure, Fax and DTMF issues reported by
  • Global Customers
  • Taking online traces (ISUP / SIP) on our network (Call capture verbose) to identify the root cause of the call failures
  • Working on AudioCodes1000 Media gateway which we basically use to convert ISUP to SIP messages
  • Testing of Voice (G711 and G729) and Video Codecs to maintain quality of call
  • Troubleshooting of VOIP and ISUP Issues reported by Telecom Operators and Enforcement agencies
  • Performing configuration changes on the platform
  • Doing testing on the LAB before making live in production site
  • Identifying VOIP bugs and working with developer to fix the same
  • Exposure to Verint Mediation devices for interception of CC and CD
  • Call Content and Call Data
  • Working on Linux based platforms and SQL database
  • Working on X1, X2, and X3 interfaces for Lawful Interception
  • Experience in Media Transcoders (Audio Codes M1K) devices
  • Upgradation of software components installed in our devices
  • Tracking of Product bugs and lead to closure during handover.

Software Test Engineer

MOBILEUM Technologies
01.2019 - 07.2019
  • LINUX and NETWORKING
  • About Project Mobileum have deployed their products in different regions of the world to outline at a high level how mobile operators can monitor and sample interconnect SIP traffic to investigate if they have experienced, or are likely to experience, unwanted or malicious SIP traffic that may affect their network, and to improve the protection of their networks against such traffic
  • It outlines signs of abnormalities, how operators can handle these abnormalities to protect their networks
  • Responsibilities: Fixing Bugs by analyzing product logs, Wire shark traces and adding new features in different Releases as per Client
  • Requirements
  • Fault management includes solving quality related ticket like FAS, ECHO, Dead air, PDD, Distortion, Noise, Congestion, looping problem, ASR, FAX, Call drop, DTMF, One-way related tickets etc
  • Provisioning of onboarding customers and head-to-head testing with them before GO LIVE
  • Troubleshooting VOIP Issues with Core IMS Nodes (P-CSCF, S-CSCF and MGCF) to restore the issue and identify the cause
  • O Responsible for equipment operation & maintenance (Fault, configuration, alarm)
  • O Testing & knowledge of codec G723, G729 and G711
  • O Checking day to day Customer traffic parameters like ASR, ALOC and NER stats for different customers and troubleshooting based performance
  • O Also performing ERR (Emergency Re Routing) in case of Outage towards Access Network
  • O Proactive and reactive troubleshooting of VoIP related issues such as calls not maturing, voice quality, PDD, RBT, FAX, DTMF
  • CLI issue
  • Monitoring of SBC real-time statistics and if any abnormality then taking action on the same
  • Analysis and Troubleshooting on Real time call failure in SBC and SBC max session utilization
  • Providing Support of SIP related issues encountered by other teams in the network
  • Analyze SIP call trace on Wireshark for reported issue
  • Preparing and implementing CSI (Continuous service improvement) plans
  • To provide quick resolution of reported incidents in defined SLA
  • Vodafone Global Enterprise
  • Project Name: Vodafone International Voice Connect (IVC)
  • Skills, IVC (International Voice Connect) project aims to provide a core switching platform for international voice calls
  • This core platform will provide unified routing and distributed switching for international voice on a geographically redundant configuration.
  • Identified critical bugs and worked closely with developers to ensure timely resolution, resulting in a more stable product.
  • Wrote and optimized test cases to maximize success of manual software testing with consistent, thorough approaches.
  • Enhanced product reliability through thorough functional, regression, and performance testing.

Senior Engineer, Engineer

Vodafone Global Enterprise
01.2017 - 11.2018
  • Working level 2 escalation of core Network engineering group for Network operation Centre, Handling escalation of prime preferred customer, International destination fault handled with conformance to SLA
  • Working on Protocol SIP, RTP, SDP, ISUP
  • Working as an integral part of Incident Management, Problem management, and Change Management
  • Coordination with more than 60 international carriers (BT, AT&T, Verizon, Bell Canada, Colt, Orange, PCCW) hence having good global exposure
  • Extending High end technical support for Vodafone IVC network based on VOIP technology
  • Performing Fault Diagnosis, rectification & routing changes over IP networks
  • Investigate and resolved troubles like ASR, ACD, NER, call drop, connectivity, quality, looping, CLI, FAS, FAX, Toll free, roaming issues, MOS, Audio issues, etc
  • Within given MTTR
  • Fault management includes solving quality related ticket like FAS, ECHO, Dead air, PDD, Distortion, Noise, Congestion, looping problem, ASR, FAX, Call drop, DTMF, One-way related tickets etc
  • Upgradation of SBC and Media Transcoder
  • Routing and configurations-based changes on Audio Codes SBCs as and when required
  • Provisioning of onboarding customers and head to head testing with them before GO LIVE
  • Responsible for equipment operation & maintenance (Fault, configuration, alarm)
  • Testing & knowledge of codec G723, G729 and G711
  • Checking day to day Vodafone traffic parameters like ASR, ALOC and NER stats for different customers and troubleshooting based performance
  • Taking Head to Head testing with International Carrier as well as Circles to resolve respective issues
  • SKILLS: SIP, VOIP, SBC, USSD and
  • Led cross-functional team for successful completion of multiple large-scale projects, ensuring timely delivery within budget constraints.
  • Determined equipment failure root cause and implemented solutions.

Customer Service Delivery Engineer

Comviva Technologies
01.2014 - 01.2017
  • For L1/L2 support in VAS products, VOIP services for MTN Project from SEP, on the payroll of Magna InfoTech Private Limited
  • We have to do health checkup services and troubleshooting L1 level issues related to VAS (USSD, SMS and SIP) and Data Services for MTN on LINUX Platform
  • I have also experience on handling tools like eaglenoc, Nano and Oam tools
  • Responsibilities:
  • Working in MS-Technical Team providing Support to Customer for MS Africa Operations
  • VOIP/SIP Experience
  • Providing level II Technical support for the client (Handling the International/National Voice call (VOIP & TDM) issues such as
  • Call failure, ASR, ACD, High PDD, FAS, No RBT, Mute Call, call failure, CLI issue, one-way speech, Packet Drop, Fax call issue
  • Proactive monitoring on voice circuits end to end resolution with the same dockets
  • Also proactively raising tickets in CSC and
  • REMEDY & first level troubleshooting for video tech support teams
  • Troubleshooting of voice docket end to end, customer handling
  • Capturing live traces for troubleshooting using capture server
  • Basic MPLS network troubleshooting in PE routers, MCPE and business switches for link related issue of IP Circuits
  • Coordination with various Network team (Access Teams) during link outages and latency issue
  • Maintaining basic NOC functional hygiene like Alarm monitoring / daily checks on CDR files to mediation server / CPU utilization / Disc space utilization
  • Analysis of Performance Report to improve ASR/ACD towards International carriers and troubleshooting various parameters that are contributing towards low ASR/ACD, Proactively Monitoring ASR/ACD & utilization data to reduce the international faults to the destination
  • And USSD Experience Linux System Administration i.e
  • Process monitoring, Disk space, User Management and Health Check up of the process of VAS and Data Services
  • Handling First Level L1 support to all VAS services in Africa Integrated Operation Troubleshooting technical issues (SMSC, USSD), answering customer queries, handling configuration requests and installing software updates
  • STRENGTHS Quick Learner and Committed to deadlines
  • Determined and Dedicated towards the given task
  • Comfortable with working in any kind of Shift Positive approach
  • I hereby declare that the information furnished above is true to the best of my knowledge.
  • Maintained strong relationships with clients through regular communication and follow-up on outstanding issues or concerns.
  • Enabled smooth transitions during the onboarding process for new clients by ensuring seamless integration with existing systems and providing thorough documentation and training materials.
  • Collaborated with cross-functional teams to develop and implement strategies for continuous improvement in service delivery.

Education

BTECH - Computer Science

Gautam Budh Technical University
06.2010 - 06.2014

Intermediate - Science Education

CBSE
Prayagraj

High School - undefined

CBSE

Skills

  • VOIP

  • IMS

  • SS7

  • 4G

  • SIP

  • Windows,Linux

  • GPDB ,Hive and Sybase Database

  • Prometheus

  • Jenkins

  • Kubernetes

  • Grafana

  • Splunk

  • JIRA

  • Confluence

  • Splunk

  • SMPP

  • RTP

  • TCP/IP

  • Voice Products

  • Messaging Hub Products

  • Interception products

  • Billing Products

  • ACME SBC

  • MEDIA Transcoders

  • Mediation Devices

  • WIRESHARK

  • HP EMS

  • REMEDY

  • Putty

  • JIRA

  • LINUX

  • WINDOWS

Mediation Devices

Wireshark

Certification

LINUX, NETTECH private limited, Not Provided

Disclaimer

I hereby declare that the information furnished above is true to the best of my knowledge.

Timeline

Technical Lead Security(Lawful Domain)

Cognyte
07.2019 - Current

Software Test Engineer

MOBILEUM Technologies
01.2019 - 07.2019

Senior Engineer, Engineer

Vodafone Global Enterprise
01.2017 - 11.2018

Customer Service Delivery Engineer

Comviva Technologies
01.2014 - 01.2017

BTECH - Computer Science

Gautam Budh Technical University
06.2010 - 06.2014

High School - undefined

CBSE

Intermediate - Science Education

CBSE

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Abhishek SrivastavaTechnical lead Cyber Security product