Karnabir Datta
End-To-End Solution Architect/Enterprise Architect
Salthill,G
Summary
Over 15 years of experience in Telecom billing, specializing in CSG Encompass (Singleview) as an End-to-End solution architect. Expertise spans prepaid, postpaid, and enterprise billing domains. Consistently delivers innovative solutions to optimize billing processes and drive revenue growth. Deep understanding of industry best practices and successful track record of implementations. Well-equipped to provide strategic guidance and drive efficiency in Telecom billing operations. Innovative Solution Architect with in-depth understanding of software deployment and system design illustrated over 15 years of experience in similar roles.
Overview
19
19
years of professional experience
2026
2026
years of post-secondary education
1
1
Language
Work History
End-To-End Solution Architect
CSG International
06.2022 - Current
- Currently engaged as a Lead End-to-End solution architect for billing transformation project for a client in Botswana.
- Improved solution efficiency by designing and implementing scalable architectures for enterprise clients.
- Worked with customers or prospective customers to develop integrated solutions and lead detailed architectural dialogues to facilitate delivery of comprehensive solution.
- Facilitated seamless communication between technical teams and non-technical stakeholders by effectively translating complex concepts into understandable terms for all parties involved in projects.
- Lead the technical architecture design for Prepaid. Postpaid and Enterprise billing, having rich knowledge in realtime rating and billing( aligned with 3GPP standards )
- Worked as a Lead End-to-End architect for multiple BSS digital transformation projects , overlooking the End-to-End architecture design and monitoring progression of the architecture from baseline to target architecture.
- Applied industry best practices and frameworks such as TM-Forum. Certified in TM Forum modules such as eTOM, SID, TAM etc.
- Currently Engaged as E2E Solution architect for a large BSS digital transformation project covering BIlling , CRM , Revenue Management, ERP (SAGE), Self-Care, IVR, USSD and API Manager ( Brokering platform)
- Responsible for understanding the customer journeys and conceptualizing the E2E business process across application landscape.
- Primary areas also includes to act as a solution architect for Realtime rating, Postpaid billing & Invoicing, General Ledger for bookkeeping and Sales Journal , Roaming partner settlements, Product Catalogue in CSG Encompass(Singleview) billing system.
- Leading a group of solution architecture from different applications and ensuring appropriate governance and best practices and communication plans.
- Translating and realizing the complex billing requirements into Encompass convergent billing product.
Solution Architect
CSG International
01.2020 - Current
- Played multiple roles across different projects
- Engaged as BSS (billing & CRM ) Solution Architect for Digicel BSS transformation project
- Collaborated with diversified teams distributed across different regions using Miro (Business Model Canvas) in identifying the key program EPICs, Features and conceptualizing E2E business process
- Creating the Program backlog and prioritization of the backlogs
- Drafting Feature Description Documents
- Act as a Solution Architect (SME) for prepaid billing, Postpaid system , also for Accounting, Roaming, Product Catalogue etc.
- Lead the requirements workshops during definition phase with Client and translating the requirements into Functional description documents and acted as a bridge for different stakeholder( internal and external ).
- Multichoice, South Africa: Acted as BO for the Multichoice project for Partner Management value stream. Was responsible for identifying client’s partner management ecosystem and the business Architecture. Requirement Gathering and mapping the same into different EPICs and Features.
- Inmarsat, UK: Acted as Product Owner for Inmarsat , UK project. Was responsible for getting different change requests implemented.
- Standard Bank Group, South Africa: Acted as Business Owner cum Solution Architect for Std bank BSS digital transformation project. Collaborated in requirement gathering workshops, writing FDDs and playing the role of technical leadership(Solution Architect) as well time to time. Identifying business process and conceptualizing the same into the solution.
Technical Manager cum Solution Architect
Tech Mahindra
01.2017 - 01.2020
- The project was for a telecom service provider in Indonesia and Vietnam. My responsibility was Technical leadership for development team, Vendor management, looking after project plan and resource utilization, design, architect and configuration, Handling client SLA. Lead in analysis of business requirement and translation of the requirements into solution designs and functional specifications.
- Hutch Indonesia, Jakarta : Engaged as a BSS Solution architect was responsible for Change Management and looking after the billing operations such as Bill cycle. Invoicing , GL Extracts, Provisioning etc.
- Vietnam Mobile: Engaged as a BSS solution architect , was accountable for billing change management and providing technical leadership to the BSS/OSS team. Worked closely with CIO/CTO and aligned with their strategic vision.
- Three , UK : Acted as a SME for singleview billing system - Invoicing, billing , rating etc.
Development Consultant, Specialist
CSG
01.2006 - 01.2017
- Was responsible for getting different change requests implemented
- Collaborated in requirement gathering workshops, writing FDDs and playing the role of technical leadership (Solution Architect) as well time to time
- Identifying business process and conceptualizing the same into the solution
- Worked a Development Consultant Specialist for multiple clients across different countries
- Played a role of team member as a billing developer cum designer for project such as Master Card, Verizon, Best Buy, Cable ONE etc
Education
B.Tech - Computer Science and Engineering
North Eastern Regional Institute of Science And Technology
01.2005 - 12.2005
TOGAF -
Skills
Agile methodologies
Requirement gathering
Identifying EPIC(s)
Drafting features and user stories
Modelling of E2E business processes
Customer journeys
Process Flows
ITIL Certified
BPMN/MIRO/UML
TM Forum Certifications
Requirements gathering
Software development lifecycle
Performance optimization
TOGAF
Architecture review
Critical thinking
Awards
- Individual Excellence Award, 2021, CSGI
- Standing Ovation Award, 2018, Tech Mahindra
Domainexpertise
Telecom BSS domain
Timeline
End-To-End Solution Architect
CSG International
06.2022 - Current
Solution Architect
CSG International
01.2020 - Current
Technical Manager cum Solution Architect
Tech Mahindra
01.2017 - 01.2020
Development Consultant, Specialist
CSG
01.2006 - 01.2017
B.Tech - Computer Science and Engineering
North Eastern Regional Institute of Science And Technology
01.2005 - 12.2005
TOGAF -
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