# Prabjeet Singh

> Lookout

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/prabjeet

Passionate and skilled technical leader bringing forth multiple years of experience in planning, execution and delivery of complex software solutions in the unified communication and identity management space. A dedicated and performance driven individual that thrives in a fast-paced, collaborative team environment. 

Specialities
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Iᴅᴇɴᴛɪᴛʏ Mᴀɴᴀɢᴇᴍᴇɴᴛ
Uɴɪғɪᴇᴅ Cᴏᴍᴍᴜɴɪᴄᴀᴛɪᴏɴ
Cʟᴏᴜᴅ Tᴇᴄʜɴᴏʟᴏɢɪᴇs
Nᴇᴛᴡᴏʀᴋ Sᴇᴄᴜʀɪᴛʏ
Dɪsᴛʀɪʙᴜᴛᴇᴅ Aʀᴄʜɪᴛᴇᴄᴛᴜʀᴇ
API Dᴇᴠᴇʟᴏᴘᴍᴇɴᴛ
Mɪᴄʀᴏsᴇʀᴠɪᴄᴇs
Cᴏʟʟᴀʙᴏʀᴀᴛɪᴏɴ - Vᴏɪᴄᴇ, Vɪᴅᴇᴏ, Cʜᴀᴛ
Aɢɪʟᴇ (SAFE) Mᴇᴛʜᴏᴅᴏʟᴏɢɪᴇs
Aᴡs, Gᴄᴘ

## Work Experience
### Principal Engineer @ Lookout
Jan 2021 – Present

### Senior Staff Architect @ Mitel
Jan 2017 – Jan 2021 | San Francisco Bay Area

### Associate Staff Engineer @ ShoreTel
Jan 2010 – Jan 2017
Working on cloud based hosted VOIP and unified communication solutions.

### Senior Member – Technical Staff @ Veraz Networks                                    Company
Jan 2006 – Jan 2010
The project involved development of the Veraz SIP Session Border Controller (SBC), aimed at delivering comprehensive interactive communication – voice, data, video, multimedia sessions – across IP network borders. The Veraz SBC is modeled in a way that it can act as an SIP ALG for message security, an IMS compliant P-CSCF/I-BCF in the control plane, an A-BGF in the media plane 
or any combination of these. The unique architecture of the SEG allows it to be deployed as an Access-SBC and an Interconnect-SBC between peering networks.

Product expertise : 
- IGate 4000 Edge Platform (VxWorks).
- RadVision SIP Server Platform
- Hughes SIP Server Framework

Domain expertise
- IMS
- SIP 
- DIAMETER

Key Responsibilities
- SIP Feature Development – IMS-PCSCF, IBCF, SIP ALG, Topology Hiding (THIG), Routing XML, Call Trace, NAT Traversal, Interop (BroadSoft), SIP Security, Site Redundancy, Policy Decision Function (PDF), and many more.
- Project Management for the India development of the NaBC. The development was done across the Israel and India OSDCs.
- Complete project lifecycle activities – Architecture, HLD, LLD, Development, Testing and Customer Support
- Complete code ownership for the SIP Software application modules
- Training and mentoring of peers to assist in development and overall organizational growth

### Senior Software Engineer @ Motorola
Jan 2005 – Jan 2006
The Broadband Service Router (BSR) provides broadband carriers with competitive edge in defining, deploying and managing broadband services.
This carrier-class switching and service provisioning solution allows cable operators to rapidly introduce differentiated data, voice and multimedia services for both corporate and residential subscribers and deliver QoS levels end-to-end from the cable modem to the core network.

Product expertise : 
- BSR2000 / BSR1000 / BSR64000 – Cable Modem Termination System (CMTS) variants to cater from small to large scale Multiple Service Operators (MSOs).

Domain expertise
- DOCSIS 1.0/1.1/2.0 – CableLabs specifications - data over cable transmission
- OSPF/RIP/BGP/PIM/IGMP – Unicast / Multicast routing protocols
- PacketCable Multimedia (PCMM)

Key Responsibilities:
 - Involved in the first software release for BSR2000 in the areas of routing and policy control. Worked on features such as OSPF, BGP, access-lists, PBR, PIM. 
- Implementation of PacketCable Multimedia (PCMM) functionality on BSR2000. Work ranged from initial impact analysis right up to integration testing and field trials. 
- Part of a technical council focusing on exploring/following the prospects of WiMax as a next generation access technology

### Programmer Analyst @ Infosys Technologies Ltd
Jan 2000 – Jan 2005
This project, affiliated with Nortel Networks, was involved in many aspects of development and support of the Passport Switch. The scope of the project involved solving application requests raised by designers, executing major and minor enhancements as well as product testing for application features related to ATM and IP services offered on Passport.

Product expertise : 
PASSPORT – Nortel Networks Multi-Service WAN Switch. Passport WAN portfolio provides carrier-grade, multiservice switches delivering a variety of data, voice & video services.

Key Accomplishments 
- Key architect and designer for the ATM SPVC Call Redirection feature delivered to one of Nortel's key customers. 
- Provided onsite design support for the 5&30Min PMs for IP feature. My effort and dedication towards this feature was honored by an Individual Excellence Award.
- Executed and supervised the execution of the Alpha and Beta phases of the testing for the Local and Global Rerouting feature. Led a team of 4 people – my work was highly appreciated and also resulted in an excellence award for the same.

Key Responsibilities
- ATM/IP feature estimation and system/functional design 
- Develop and enhance application software to satisfy business requirements.
- Complete application unit test plans and execute unit tests. 
- Comply to and improve upon existing departmental processes and practices.  
  Held the role of Defect Prevention (DP) prime for my project.
- Function, as and when required, as a technical analyst or team lead. Offer consultation and technical help to junior members in the team
- Training and mentoring of peers to assist in development and overall organizational growth.


## Education
### Indian Institute of Technology, Bombay

### Our Own English High School


## Contact & Social
- LinkedIn: https://linkedin.com/in/prabjeetsingh

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Source: https://flows.cv/prabjeet
JSON Resume: https://flows.cv/prabjeet/resume.json
Last updated: 2026-04-12