Sangeeta Bellara
Pune
Summary
Highly-skilled OSS expert and software professional bringing 22 years of experience in telecom management software design, development and integration. Proficient in OSS/BSS telecom standards such as TMF eTOM, SID, TAM , OSS/J , MTOSI, 3GPP NRM , ORAN, ETSI MANO and technologies such as IP, 3G, 4G ,5G slicing, 5G ORAN, LTE and SDN/NFV. Expert in service design and use of ONAP for service orchestration of Kubernetes cloud native container network functions and services. Advanced knowledge of Java, C and C++ and experienced in CORBA and Java frameworks like J2EE and Spring Boot. Expert in analysis and implementation of best practices in OSS/BSS business processes. Knowledgeable telecom domain specialist who works well under pressure and consistently meets deadlines and targets while delivering high quality work. Experienced in full project life cycle from design to implementation to integration, and in creating proof-of-concepts for customer demo purposes. Quickly masters telecom management standards and technologies ,OSS/BSS COTS product functionality and northbound/southbound integration interfaces. Proficient in information modeling for inventory integration, and implementing models in UML and XML. Skilled at technical leadership, communication, presentations and assisting sales teams in providing technical value proposition for products.
Overview
23
23
years of professional experience
Work History
Solution Architect & Product Owner
T-Systems - Deutsche Telekom
05.2022 - Current
- Responsible for cloud-native software design of Service & Resource Management systems for RAN networks
- Implemented network automation software for RAN configuration management, slicing, policy design and B2B multicoud connectivity.
- Managed Agile project planning, resource allocation, scope, schedule, status and documentation.
- Supervised deployments on cloud and and provided troubleshooting and user support.
Technical Lead Architect
Tech Mahindra
06.2018 - Current
- As an ONAP solution architect, product owner and technical team lead, collaborated with an operator in Europe for service design, orchestration, and Day 1/2 configuration for 5G ORAN vendor container-based network devices, involving service specification design for Kubernetes-based cloud native network functions, orchestration workflows for bring up and Day 1 configuration, ONAP AAI-based information model for 5G RAN, controller scripts for Netconf-based configuration and closed loop actions. Overall,developed ONAP system architecture for 5G ORAN network management according to business needs.
- For a Singapore-based operator, modeled the integration of the information models from multiple EMS systems with that of a vendor-specific service management system for L2/L3 VPNs ( MPLS VPN, VPLS, EPipe) involving technologies such as LDP, BGP, Ethernet and IP based MPLS, SDWAN and VXLAN.
- Analyzed and designed 3GPP NRM-based 5G slice provisioning using ONAP. Contributed to ONAP community for service orchestration of 5G slicing for 5G core network. Created the service design in ONAP for 5G core slice network provisioning using a vendor's 5G core product.
- Responsible for integration of ONAP with a client's BSS system for service order provisioning.
- Proof of concept design and implementation of an alarm correlation solution using ONAP Holmes component and closed loop actions for vIMS by collecting metrics using SNMP.
- Design and implementation of a POC for SDWAN Fulfillment solution of a vendor solution brought up and managed by ONAP.
- Developed the proof of concept for predictive fault management leveraging AI/ML techniques
- Responsible for architecture and design of Smart Inventory Federation, a telecom inventory federator, and designed the integration of SIF with ONAP AAI inventory, which included data modeling and mapping of SDWAN virtual network and services
- Provided current best practices and third-party solution alternatives when necessary for functional design documentation for presales opportunities with leading operators.
Tech Specialist
Tech Mahindra Ltd.
04.2010 - 05.2017
- Built a reusable solution having ready-to-use workflows and global best practices, which is used to speed up rollout of the Oracle platform for telecom operators and broadband service providers, for management of their rapidly changing networks and services. The components included were OSS/BSS workflows for 3G, 4G LTE, Sales & Distribution and Configure, Price & Quote (CPQ) applications. In its first release, it helped to bring down the total cost of ownership and timeline by 20% for two mobile service providers
- Built and tested a proof-of-concept for a telecom customer for deploying cloud-based BSS systems using Elitecore BSS on AWS cloud. A number of billing workflows for 3G/4G services were built and and tested on the system
- Coordinated and participated in promotional activities and trade shows, such as Catalyst Proof of Concept demos for TeleManagement Forum, revolving around OSS service assurance and fulfilment solutions for Virtual Private Network (VPN) and mobile service providers
- Collaborated with developers and marketing team to market telecom management-based products and services. Identified value propositions and key strategies to position the company's telecom management product portfolio as a part of the digital transformation journey of telcos
- Analyzed third-party data and investigated new growth opportunities in the telecom management software space leveraging SMAC (Social, Mobility, Analytics, Cloud) trends in the digital transformation journey of telcos
Senior Software Engineer
Tech Mahindra Ltd.
12.2000 - 04.2010
- Developed a standards-compliant interface for Cisco ANA software which would help it integrate with Common Off the Shelf (COTS) products for the purpose of managing telecom IP-based networks. The ANA information model was mapped to TMF SID and operations were mapped to TMF MTOSI.The interface was developed using J2EE framework and WSDL
- Integrated two fault management systems for a Swiss-based telecom operator. IBM Micromuse had to be integrated with a bespoke fault management system to synchronize alarms and notifications. The solution was developed using Java
- Developed a translator and converter application which converts SNMP MIB files to CORBA IDL files and vice-versa for the purpose of integrating SNMP-based network elements with a CORBA-based network management system. This was developed using Lex, Yacc and C++
- Created a proof-of-concept for British Telecom, which revolved around service assurance for MPLS VPNs. Amdocs Clarify, Granite Inventory and Micromuse Fault Management systems were integrated using TMF standards (OSS/J) interfaces. Oracle Weblogic J2EE framework was used to create this end-to-end automated service assurance solution
- Contributed to TMF standards by extending the SID information model for MPLS VPN for management of MPLS VPN networks and extended IPNM interface for IP VPN
- Wrote an internally awarded whitepaper around the effects on OSS/BSS systems for managing 3GPP IP Multimedia System (IMS)-based networks
- Integrated Cisco Service Control Engine with Amdocs Billing system as part of a service fulfilment business process which was created for a Telemanagement Forum Catalyst
- Streamlined the company's internal requirement gathering, design and testing processes that are applied for telecom clients in order to speed up the delivery process. Best practices for each phase across various technologies such as GSM, VOIP and IP were created which the delivery teams leveraged to shorten the time-to-market for the telco clients
Education
B.E. in Computer Engineering - Computer Engineering
Savitribai Phule Pune University
Pune, India2000
Skills
- Expert in use of ONAP for service design, orchestration and management of cloud native network functions and services
- Kubernetes and Cloud Native Associate
- Advanced knowledge of TMF, 3GPP , ORAN, IETF and ETSI standards for OSS/BSS such as 5G NRM, SID, eTOM, TAM , OSS/J, MTOSI, SNMP and ETSI MANO for SDN/NFV
- Proficient with telecom technologies such as 5G slicing, 5G ORAN, 4G LTE, 3G, L2/L3 VPNs (MPLS, BGP, Ethernet)
- Java, J2EE, C, C, XML specialist
- Worked in Kotlin , Python scripting for network configuration
- Knowledge and use of SNMP and Netconf for network device management
- Innovative
- Exceptional time management
- Team player
- Good communication skills
- Fast learner
- Excellent attention to detail
- Highly dependable
- Focus on leading teams for successful delivery to customer
Timeline
Solution Architect & Product Owner
T-Systems - Deutsche Telekom
05.2022 - Current
Technical Lead Architect
Tech Mahindra
06.2018 - Current
Tech Specialist
Tech Mahindra Ltd.
04.2010 - 05.2017
Senior Software Engineer
Tech Mahindra Ltd.
12.2000 - 04.2010
B.E. in Computer Engineering - Computer Engineering
Savitribai Phule Pune University
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