Partha Sarathi Mondal

Client: Telefonica (Movistar) - Chile, Peru (Real time Charging, Offline Rating, Billing, BSS stack):

• As an architect deployed onsite, consulting the team from Chile & globally cross sites – Peru, India, Mexico, Brazil with close management for Chile, Brazil and India for overall Production/non-PROD activities/support in charging & Billing system.
• Engaged in major upgrade for real time charging platform on PMX (Platform Matrix Upgrade) and on-going stabilization for Telefonica Chile with diversified architectural changes across modules for event processing, IMDG, satellite processes, operational daemons, Postgres, Hbase, Kafka etc.
• Helped account with early engagement in PMX & charging platform transition from NFT phase to identify the gaps, potential blockers with the solution to match the business requirement and mitigate the operational shortfalls with bringing in the required fixes.
• Involving in post-PMX stabilization of PROD ensuring integrity with peer applications – CM, OMS, Billing and external parties.
• Handling all billing allegations with customer to ensure the KPI is green and so as for daily and monthly charging KPIs for multiple areas.
• Performing periodic Manager On Duty role for supporting operations in PROD covering for multiple applications of Amdocs (Backend - Turbo Charging, OFCA, CM, AR, Infra – DB, INT, Invoicing, OMS, Frontend - CRM) through close co-ordination with the respective teams.
• Devising and aligning customers on multiple solutions to their daily challenges, monthly Billing, adopting changes – pros, conns, optimizing deployment impacts, downtime, improved monitoring with E2E integral view to close gaps in PROD operation and reduce operational overhead at both ends.
• Actively engaged in driving customer training for new tools introduced in new turbo charging platform for operation like Airflow, integration with AMC, new monitoring, architecture changes, new processes for EOCs to upgrade the skills to prepare for V23 upgrade and bring confidence.
• Enabling the team for 5 people across sites for Turbo Charging support, PROD incident handling for v9, identified scope for automation and monitoring to ensure better stability in PROD and meeting business KPIs for consistently over months with enhanced customer satisfaction.

Client: Three, UK (Real time charging and Offline Rating):

• Enabled the PROD Support for real time charging platform team for TC v9 Operations in 3UK along with P1/P2 incident handling and resolution.
• As a software architect, enhanced close customer interaction across multiple domains like Network, Business, Revenue & Assurance for strategizing defect resolution, solution for change requirements etc.
• Worked with Operation team to achieve optimized monitoring ensuring the quality and integrity of the data points
• Introduced new/customized Operation reports identifying business scenarios needs to reduce efforts e.g. Error handling of the system in a nutshell through automations to bring in clarity and save operational time towards repetitive customer’s concerns.

Client: Korea Telecom, South Korea (Real time Charging and Offline Rating):

• Worked as a Team Lead for GSS (Global Strategic Support) for ~1.5 years in KT for Turbo Charging area covering both offline & online charging modules for customized business flows in V9.
• Being on site, Led the offsite & onsite team of 8 people to equip them in deliverable required support and incidents handling for Production.
• Worked for series of major upgrades and deployments for charging modules like IMDG (In-Memory Data Grid), Product patches and satellite processes.
• Handled Operational interfaces of Prepaid/Postpaid subscriber Charging with Big Data solution – Hadoop/Cloudera.
• Responsible for defect management from OGS/Production Support side in 3 folds - collaboration with delivery team based in India, Manila and along with customer to ensure smooth transition of the project to Production.
• Led the OGS team in Manila to ensure proper balance between Fast Track CRs and Production defect deliverables for TC, Rating Logic configurator, BPT as per alignment with customer.
• Supported OGS (On-Going Support) activities & post-PROD activities on critical situations for Tier1 applications.
• Responsible for delivering weekly and monthly reports containing the overall account snapshot KT - views of KPIs met, SLA breach (if any) for defect, major deployments, improvements and roadmap for the next month being planned.
• Key resource for customer communication and handling through Korean translators.

Client: Globe Telecom, Philippines (Real time Charging and Offline Rating):

• Being on site and part of Managed Service, led Turbo Charging team for Globe for Turbo Charging PROD support – operational, incidents impacting revenue, ensuring readiness for EOC closure, BAU UAT/TCOE support across old and new sites under ongoing/planned upgrade/transition.
• Participated in Disaster Recovery activities/challenges for multiple geographical sites for TC PROD.
• Ensured required support and reports availability during billing of each cycles in a month in timely manner and clarification for all doubts, rejects etc as raised by customer to close the billing.

Client: Globe Telecom, Philippines (Billing and Settlement):

• Working as an Onsite Team Lead for ~5 years in Managed Service team of Globe Telecom project in APRM (Partner settlement) covering offline billing and Settlement modules for customized business flows and requirement for multiple versions.
• Actively involved for series of major deployments & Releases (R3.0 – R3.6) for Partner settlement modules spanning multiple line of Business.
• Responsible for handling diversified settlement streams – Roaming business, Content Services, Interconnect (National & International) settlement, Mobile Virtual Network Operator business, and ongoing broadband contractor based settlement with Globe Partner.
• Responsible for stabilizing operations, incident handling, meeting SLAs for service requests and completing the SDLC for Fast Track CRs for the domain to ensure smooth transition of the deliverables to Production.
• Leading the Managed service team of 5 people in Manila to ensure proper balance between Fast Track CRs and Production defect deliverables for APRM as per alignment with customer.
• Evaluation of possible risks and recommendation of optimized solution for various migration projects in Globe from Legacy to planned platforms (e.g. Cherry, Wireline, postpaid online etc), MNP Intra, MNP Inter, ensuring smooth and stable operations with key focus on minimal impact.
• Focused on bringing in automation & optimization in the account though SRE (Site Reliability Engineering - python based automation platform) to reduce Operational overhead with proactive approaches, adequate reconciliation intra and inter applications, setting up of required alert and monitoring, prior solution analysis for releases, identifying solution gaps and raising the risk assessment, defining the gating criterions for PROD thereby.
• Handling SIT/UAT/ITV/NFT/Triage/TCOE support.
• Responsible for meeting all KPI, SLAs for EOM deliverables, reports to Globe for each of line of businesses for APRM for external Billing (Invoice) and Settlement (SAP) systems and closure of the customer queries/concerns/disputes is raised.
• Responsible for KT to OGS team and collaboration across teams from India as well as peers in Manila.
• Supporting all Managed Services activities & post-PROD stabilization activities on critical situations – planning of seamless support and ensuring BCP.
• Handling customer communication, escalations if any and educating the customer.

Client: Multiple Clients across APAC, EMEA and others (Java Backend Experience)

• Led as a key delivery focal for ~5 years in several projects in Amdocs in Mediation/OFCA systems covering non-Roaming, Roaming, Error modules for customized business flows for multiple product versions with the basics of Rating module integration.
• Worked in multiple Global accounts like Everything Everywhere, Datacom, Vodafone India, Optus, TelkomSel, Sprint, TelcomSel South Africa, Korea Telecom, Globe Telecom, Three UK & Telefonica with the major milestones achieved in Datacom, Sprint, Telcomsel & Globe releases.
• Supported SIT, UAT, ST, NFT activities across the projects and thereby achieved experience to identify critical issues/impacts for a business scenarios/flows/technical implementation and thereby resolving critical & high issues of mediation well before they emerge as a defect on application.
• Supported GSS/MS team activities & post-PROD activities as well on demand on critical situations.
• Apart from Environment Installation/refresh & upgrade activities also involved in scoping of several projects/CRs to understand the requirements, provide solutions, design and implementation the same to take it to PROD as part of software lifecycle through SDLC/Agile/Canban.
• Helped in achieving Globe major releases from R1.6 – R2.5 smoothly for mediation at a constant trend delivered without any escaping defect.
• Demonstrated cross application/interface knowledge interacting with e.g. APRM, TC etc. and thereby understanding the E2E business flow.
• Worked for ~3.5 years in Globe supporting both Sweden & CHIA releases along with all SIT, UAT, ST, PET, GSS activities & active involvement in several other project requirements/CRs in parallel e.g. Razor, Turismo, MBB, Legacy CMD Decommissioning, Postpaid Online.
• Proposed/Implemented required monitoring PROD to have maximum coverages and quick identification of the issues.
• Identifying gaps in the solution from multiple aspects (spanning integrated applications/systems) and scope of optimization for new/existing business flows.

Client: Multiple Clients across APAC, EMEA and others (C/C++ Backend Experience)

• Worked as a delivery focal for 3 years in several projects in Amdocs in Enabler covering mostly A&F (Acquisition and Formatting) module for customized business flows with the basics of Rater/Rating module.
• Worked in Vodafone, Elisa, Datacom, Sprint, Cosmote and Mobilkom & MTEL (~2.5+ years) with the major milestone achieved in Datacom, Mobilkom & MTEL for releases.
• Supported all the ST, Pre-AT, AT/UAT activities including defect closures on time.
• Knowledge of RBMS as part of building the deliverable functionalities in A&F.
• Knowledge of version control mechanisms with XtraC used in all the Enabler projects.
• Solely Managed CRs starting from scoping till delivery with zero escaping defects within pre-defined time.
• Integration knowledge with upstream/downstream systems like Rater, MAF, CSM and basic knowledge of cross applications to understand the
  E2E processing flows and business.
• Worked as a sole focal in MTEL (A&F) for more than a year and helped to deliver and achieve successful milestone of R3 with the delivery of complex & huge CRs of 3MM single handedly with zero escaping defect till & Post PROD.
• Involved in whole Cosmote A&F transition by analyzing, understanding & delivering the HLD to the customer for existing business scenarios (local, roaming & error handling) implemented in A&F that acted as a base for the transition from A&F to Mediation.

C/C++ Experience:

• Developing/modifying code segment while porting the application products from OpenSource to HP-UX for successful build.
• Manipulation of pointer, handling static/dynamic binding and other C++ features.
• Ability to convert a problem statement into pseudo code/algorithm and implement the same in C/C++.

Patching Experience for HP-UX:

• Member of InetSvcs (Internet Services) Patch Team, who is responsible for cutting patches for HP-UX both kernel and Non-kernel patches for the different Network
  Products like R-commands, FTP, Telnet, DNS etc.
• Cutting, Testing & releasing patches for HP-UX after the analysis of the changes is done.
• Written functional, design and unit test plan documents to enhance the test suite
• Thorough Unit and regression testing & functionality testing of pre-patch binary.
• Debugging of process core dumps and system logs
• Executing compatibility tests for Kernel products like Libc (patch), non-kernel Transport Patch
• Performed code/document reviews to improve software quality on regular basis

Build & Release Experience for HP-UX (multiple versions):

• Complete ownership of the products - “Chkrootkit, PAMpasswd, PAMmkdir, Python, Squid, OpenSC, Perl-LDAP, SOAP, SourceIDSAMLJ”
• Porting/Building/Packaging and sustaining the components on HP-UX & automating the processes wherever applicable through shell script.
• Understanding the source code of the products and modifying the code snippet or developing new HP-UX specific code as and whenever required to solve building issues while porting as part of de-bugging process.
• Influenced the Project roadmap by Porting 3 more Open Source products – Ruby, Rubygems Rubyrails
• Releasing Security Fixing and Enhancements & answering Customer queries
• Environment Setup for the builds and all types of Testing (Basic & Advance)
• Installations of the products on HP-UX
• Done with 2 Complete Major releases (life cycle) of the project
• Performed code/document reviews to improve software quality on regular basis

Quality Control/Assurance Experience:

• Controlling the quality of the software products & components, released as part of Build ~ Release & Patching projects over HP-UX platform, which includes application software products (MySQL, Chkrootkit, Python etc.) & core networking products (FTP, Telnet, R-Commands etc.)
• Diagnosing & reporting product defects prior to release cycle.
• Tracking the quality parameters of the products closely and resolving quality issues.
• Developing and executing new test cases through unit test & regression test to check the functionality of the products in different environment and thereby enhancing the quality of the products
• Built a networking LAB home page for repository of the changes for the products concerned/ported/patched for HP-UX multiple versions.