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Debojyoti Guha

Senior engineering leader driving large-scale carrier-grade disaggregated network platforms & distributed systems, AI-powered observability & automation toward autonomous networks [ Radisys | ex-Ericsson | ex-Ixia ]

Greater Bengaluru Area

17+ years of work experience

Radisys Corporation
Jul 20242 yrs 3 mosPresent

Bengaluru, Karnataka, India

Product engineering leader delivering carrier-grade fixed broadband access platforms (OLTs) for global telecom service providers. • Lead the Product Development practice across platform software, data plane and SDK infrastructure, routing control and management planes, with end-to-end ownership spanning org building, talent development, roadmap planning, and product strategy. • Drive software-defined, disaggregated any-PON platforms, integrating high-performance switching pipelines on Broadcom SoCs (Qumran AX family of switch silicon and Aspen family of PON MAC silicon) with cloud-native, Kubernetes-orchestrated microservices for control and management planes. • Partner closely with Tier-1 and Tier-2 operators (JIO, Telefonica, SONY etc) to translate real-world network requirements into targeted feature innovation, taking solutions from architecture through lab validation and large-scale field deployment. • Led a major architectural milestone by introducing BNG-grade routing into a disaggregated, L2-aware OLT portfolio, requiring enhancements across the data plane, routing stack integration, and end-to-end management workflows; currently in advanced lab trials with a leading Asian telecom operator. • Build and mentor high-performing engineering leadership teams, coaching managers, architects, and senior SMEs to create sustained execution capacity. • Contribute to cross-company AI initiatives through the Radisys AI Guild, focusing on AI-powered insights, observability and automation via Radisys Insights and collaboration with the Jio ecosystem, enabling AI-assisted operations, intelligent diagnostics and early automation toward autonomous network capabilities.
Radisys Corporation
Jul 20213 yrsJun 2024

Bengaluru, Karnataka, India

Radisys Corporation
Jun 20192 yrs 1 moJun 2021

Bangalore

Ericsson
Oct 20171 yr 9 mosJun 2019

Bengaluru, Karnataka, India

Engineering leader responsible for carrier-grade routing platforms within Ericsson’s IP OS portfolio, spanning control plane architecture, feature delivery, and organizational leadership. • Led multiple cross-functional agile R&D teams across development and test, delivering core routing capabilities including unicast protocols, Segment Routing, EVPN, and related technologies for large-scale carrier deployments. • Owned end-to-end delivery of routing features, driving predictable execution, release quality, and alignment with product-line objectives. • Defined and drove quality goals aligned with broader Product Development Unit strategy, strengthening delivery rigor and operational stability. • Built and scaled high-performing engineering teams, hiring and mentoring engineers while grooming first-line and emerging managers to strengthen leadership depth. • Drove the innovation charter for the IP OS Routing organization, resulting in a 3× increase in patent filings within a year. Led standards and research contributions, including IETF drafts, and co-authored patents published through WIPO. • Played an active role in Bangalore R&D site leadership initiatives, contributing to talent development, culture, and cross-team collaboration at scale. • Worked closely with product management, engineering leadership, release management, and site leadership to ensure strong cross-functional alignment and delivery readiness. • Led targeted initiatives focused on process efficiency and operational excellence, improving execution consistency across the routing organization
Ericsson
Dec 20151 yr 10 mosSep 2017

Manager, Product Development & Testing – IPOS Protocols team @ Ericsson R&D
Ixia
Apr 20123 yrs 9 mosDec 2015

Kolkata, West Bengal, India

Engineering leader responsible for large-scale delivery of network test and validation platforms, with ownership across people, product execution, and customer-facing delivery. • Led a multi-site engineering organization (~40 engineers) across Kolkata and Bangalore, with managers, architects, senior SMEs, and principal engineers reporting directly. • Owned end-to-end delivery of Ixia’s Routing and Bridging protocols portfolio, with strong focus on market-leading SDN test solutions spanning OpenFlow, Segment Routing, and advanced L2–L3 performance testing. • Drive forward-looking planning and execution for Ixia’s L2–L3 performance test product lines, aligning engineering priorities with evolving customer and market needs. • Built and scaled high-performing teams, providing hands-on leadership, mentoring, and coaching, while grooming first-line managers to strengthen leadership capacity within the IxNetwork organization. • Played a key role in customer interops, beta programs, and high-visibility customer demonstrations, and led critical customer hot-site engagements, ensuring delivery confidence and customer trust. • Partnered closely with product management, field teams, and global stakeholders to deliver reliable, high-quality platforms used by customers to validate carrier-scale network infrastructure
Ixia
Apr 20102 yrsMar 2012

Kolkata

Engineering manager responsible for delivery and team development across complex, distributed network test platforms, supporting high-velocity customer and product demands. Led a team of software engineers working on large-scale distributed systems in C, C++, and C#, delivering IP network and network equipment test solutions used in demanding customer environments. Drove customer-facing deliveries in a fast-paced, iterative development environment, ensuring reliability, responsiveness, and delivery confidence during critical engagements. Supervised and scaled the internship program in collaboration with multiple universities and institutions, creating an early talent pipeline for the organization. Initiated and led the first consolidated training and upskilling program for Ixia India, designing a structured curriculum across Kolkata and Bangalore sites to build long-term capability aligned with future product and technology needs.
Ixia
20064 yrs2010

Kolkata Area, India

Worked as a Technical Lead for the engineering teams for both Ixia's conformance (IxANVL) and performance L2-3 Network test product (IxNetwork). Led development of MPLS, Unicast and Multicast Routing, carrier Ethernet and link aggregation protocols for IxNetwork.
Ixia
20051 yr2006

Kolkata Area, India

Development of Ixia's Layer 2-3 network conformance testing tool. Expertise in Layer 2-3 networking, C, C++, Linux, scripting languages like shell, TCL
eFORCE
20041 y2005

Kolkata

Worked in Ixia projects. Developed protocol test framework for IGMP, LACP, Carrier Ethernet, EAPOL protocols
Alumnus Software Limited
Jun 20039 moMar 2004

Kolkata

Education

AI for Senior Executives – Integrated with Kellogg’s AI Strategies for Business Transformation

IIM Kozhikode MDP + Northwestern | Kellogg Executive Program

20252025
Indian Institute of Foreign Trade

Executive MBA, International Business

Indian Institute of Foreign Trade

20093 yrs2012

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Headline

Senior engineering leader driving large-scale carrier-grade disaggregated network platforms & distributed systems, AI-powered observability & automation toward autonomous networks [ Radisys | ex-Ericsson | ex-Ixia ]

About

Senior Engineering Leader (23+ years) driving the architecture, development and deployment of global, carrier-grade telecom platforms. My expertise bridges cloud-native management/control planes (Kubernetes, microservices) and high-performance merchant silicon (Broadcom StrataDNX/Qumran/Aspen). Across Radisys, Ericsson, and Ixia (Keysight), I have scaled multi-site engineering organizations and delivered industrial-grade systems ensuring 99.999% availability for Tier-1 operators. *Key Career Highlights & Achievements* - Disaggregated Platforms: Spearheaded end-to-end development of SDN-based GPON/XGS-PON/CPON platforms. Pioneered access-to-edge convergence by embedding BNG-grade routing capabilities into an L2 OLT portfolio (currently in advanced trials with a major Asian operator). - Global Production Scale: Scaled deployments to 2,700+ OLTs and 400,000+ subscribers within two years, partnering on co-design and validation with Jio, Telefónica, and Sony. - AI Innovation & Ecosystem Integration: Shaping Radisys AI Guild initiatives to deliver AI-powered observability and automation via Radisys Insight Agents, leading to collaboration with global Telecom Service Providers to embed intelligent diagnostics for autonomous networks. - Engineering Velocity: Institutionalized framework-driven practices to maximize the leverage of AI coding agents, rapidly accelerating internal R&D productivity. *Proven Technical Adaptability & Scale* - Cross-Domain Adaptability: Successfully mastered diverse stacks, from Ixia’s state-of-the-art Protocol Traffic Generators and Ericsson's flagship Router 6000 routing stacks to Radisys’ next-gen disaggregated xPON solutions. - Core Routing at Tier-1 Scale: Led cross-functional agile teams (Dev/Test) delivering business-critical unicast, Segment Routing and EVPN stacks for Ericsson’s flagship IPOS portfolio. - Foundational Org Building: Acted as a Founding Team Member of Ixia’s India subsidiary, scaling an early-stage engineering team into a high-growth, multi-site operation.

Location

Greater Bengaluru Area

Work experience

Sr Director - Engineering at Radisys Corporation, Jul 2024 - Present · 2 yrs 3 mos, Bengaluru, Karnataka, India, Product engineering leader delivering carrier-grade fixed broadband access platforms (OLTs) for global telecom service providers. • Lead the Product Development practice across platform software, data plane and SDK infrastructure, routing control and management planes, with end-to-end ownership spanning org building, talent development, roadmap planning, and product strategy. • Drive software-defined, disaggregated any-PON platforms, integrating high-performance switching pipelines on Broadcom SoCs (Qumran AX family of switch silicon and Aspen family of PON MAC silicon) with cloud-native, Kubernetes-orchestrated microservices for control and management planes. • Partner closely with Tier-1 and Tier-2 operators (JIO, Telefonica, SONY etc) to translate real-world network requirements into targeted feature innovation, taking solutions from architecture through lab validation and large-scale field deployment. • Led a major architectural milestone by introducing BNG-grade routing into a disaggregated, L2-aware OLT portfolio, requiring enhancements across the data plane, routing stack integration, and end-to-end management workflows; currently in advanced lab trials with a leading Asian telecom operator. • Build and mentor high-performing engineering leadership teams, coaching managers, architects, and senior SMEs to create sustained execution capacity. • Contribute to cross-company AI initiatives through the Radisys AI Guild, focusing on AI-powered insights, observability and automation via Radisys Insights and collaboration with the Jio ecosystem, enabling AI-assisted operations, intelligent diagnostics and early automation toward autonomous network capabilities.

Director Of Engineering at Radisys Corporation, Jul 2021 - Jun 2024 · 3 yrs, Bengaluru, Karnataka, India

Senior Engineering Manager at Radisys Corporation, Jun 2019 - Jun 2021 · 2 yrs 1 mo, Bangalore

Senior Manager, Product Development - IP OS Routing at Ericsson, Oct 2017 - Jun 2019 · 1 yr 9 mos, Bengaluru, Karnataka, India, Engineering leader responsible for carrier-grade routing platforms within Ericsson’s IP OS portfolio, spanning control plane architecture, feature delivery, and organizational leadership. • Led multiple cross-functional agile R&D teams across development and test, delivering core routing capabilities including unicast protocols, Segment Routing, EVPN, and related technologies for large-scale carrier deployments. • Owned end-to-end delivery of routing features, driving predictable execution, release quality, and alignment with product-line objectives. • Defined and drove quality goals aligned with broader Product Development Unit strategy, strengthening delivery rigor and operational stability. • Built and scaled high-performing engineering teams, hiring and mentoring engineers while grooming first-line and emerging managers to strengthen leadership depth. • Drove the innovation charter for the IP OS Routing organization, resulting in a 3× increase in patent filings within a year. Led standards and research contributions, including IETF drafts, and co-authored patents published through WIPO. • Played an active role in Bangalore R&D site leadership initiatives, contributing to talent development, culture, and cross-team collaboration at scale. • Worked closely with product management, engineering leadership, release management, and site leadership to ensure strong cross-functional alignment and delivery readiness. • Led targeted initiatives focused on process efficiency and operational excellence, improving execution consistency across the routing organization

Manager at Ericsson, Dec 2015 - Sep 2017 · 1 yr 10 mos, Manager, Product Development & Testing – IPOS Protocols team @ Ericsson R&D

Sr Manager - Product Development at Ixia, Apr 2012 - Dec 2015 · 3 yrs 9 mos, Kolkata, West Bengal, India, Engineering leader responsible for large-scale delivery of network test and validation platforms, with ownership across people, product execution, and customer-facing delivery. • Led a multi-site engineering organization (~40 engineers) across Kolkata and Bangalore, with managers, architects, senior SMEs, and principal engineers reporting directly. • Owned end-to-end delivery of Ixia’s Routing and Bridging protocols portfolio, with strong focus on market-leading SDN test solutions spanning OpenFlow, Segment Routing, and advanced L2–L3 performance testing. • Drive forward-looking planning and execution for Ixia’s L2–L3 performance test product lines, aligning engineering priorities with evolving customer and market needs. • Built and scaled high-performing teams, providing hands-on leadership, mentoring, and coaching, while grooming first-line managers to strengthen leadership capacity within the IxNetwork organization. • Played a key role in customer interops, beta programs, and high-visibility customer demonstrations, and led critical customer hot-site engagements, ensuring delivery confidence and customer trust. • Partnered closely with product management, field teams, and global stakeholders to deliver reliable, high-quality platforms used by customers to validate carrier-scale network infrastructure

Manager - Product Development at Ixia, Apr 2010 - Mar 2012 · 2 yrs, Kolkata, Engineering manager responsible for delivery and team development across complex, distributed network test platforms, supporting high-velocity customer and product demands. Led a team of software engineers working on large-scale distributed systems in C, C++, and C#, delivering IP network and network equipment test solutions used in demanding customer environments. Drove customer-facing deliveries in a fast-paced, iterative development environment, ensuring reliability, responsiveness, and delivery confidence during critical engagements. Supervised and scaled the internship program in collaboration with multiple universities and institutions, creating an early talent pipeline for the organization. Initiated and led the first consolidated training and upskilling program for Ixia India, designing a structured curriculum across Kolkata and Bangalore sites to build long-term capability aligned with future product and technology needs.

Technical Lead at Ixia, 2006 - 2010 · 4 yrs, Kolkata Area, India, Worked as a Technical Lead for the engineering teams for both Ixia's conformance (IxANVL) and performance L2-3 Network test product (IxNetwork). Led development of MPLS, Unicast and Multicast Routing, carrier Ethernet and link aggregation protocols for IxNetwork.

Senior Software Engineer at Ixia, 2005 - 2006 · 1 yr, Kolkata Area, India, Development of Ixia's Layer 2-3 network conformance testing tool. Expertise in Layer 2-3 networking, C, C++, Linux, scripting languages like shell, TCL

Software Engineer at eFORCE, 2004 - 2005 · 1 y, Kolkata, Worked in Ixia projects. Developed protocol test framework for IGMP, LACP, Carrier Ethernet, EAPOL protocols

Software Engineer at Alumnus Software Limited, Jun 2003 - Mar 2004 · 9 mo, Kolkata

Education

AI for Senior Executives – Integrated with Kellogg’s AI Strategies for Business Transformation, IIM Kozhikode MDP + Northwestern | Kellogg Executive Program

Executive MBA, International Business, Indian Institute of Foreign Trade