Sabyasachi Bhattacharya
Technology evangelist
Bangalore
Summary
Engineering Director at GigSky with background in leading backend engineering and business intelligence teams. Excelled at Qualcomm and Motorola, driving innovation and product commercialization. Expert in distributed systems, embedded software, ML and AI applications, building data pipelines, building AI agents and BOTs. Demonstrates exceptional leadership and technical prowess, ensuring product excellence and strategic growth.
Overview
24
24
years of professional experience
1
1
Certification
Work History
Director
GigSky
Bangalore Urban
01.2021 - Current
- Working as director for backend Engineering team and the Business Intelligence & analytics team.
- Responsible for product roadmap, maintaining product quality, planning releases, and also system architecture of the data pipeline.
- Lead multiple prototype projects on building RAG-based BOT using llama-index and building AI agent for task automation using langchain.
Principal Engineer
GigSky
Bengaluru Area
06.2016 - 01.2021
- Leading GEM (Gigsky Enterprise Manager) product line
- Responsible for maintaining product quality, product feature planning and delivery, customer support working closely with Product Management team
Independent Consultant
Gigsky Inc
Bangalore
01.2016 - 05.2016
- Build a Jmeter and java based framework for performance testing of the product and building CI/CD pipeline
Staff Engineer/Manager
Qualcomm
03.2013 - 12.2015
- Worked as a lead in the MultiMode team of Modem software
- The Multimode module of the Baseband Processor is a Call Manager and interacts with 3G,2G, LTE, 1x, HDR stacks
- Supporting product commercialization
- Leading Hotline team to support various customer issues and finding ways to improve the turnaround time
- Leading different features
- Member of the modem invent team dealing with innovations
- Development of off-target environment for Unit testing
Senior Architect
Brillio ( Formerly Collabera )
bangalore
10.2010 - 03.2013
- Windows 7 Application development, windows CE Kernel, windows 7 kernel, OS benchmarking, RFP creation
- Responsible for RFP creation, solution architecting, project planning and estimation, creating case studies and product management
Lead Engineer
Motorola
10.2000 - 10.2010
- Worked in Motorola for 10+ years on development of Network simulator (for iDEN) as well as development on the UE protocol stack (for GPRS/3G/LTE/iDEN packet data stack)
- Worked as Technical Lead.
- Contributed to IP generation.
Education
Master of Technology - MTech - Data Science and AI
Birla Institute of Technology And Science
Pilani11.2023
Bachelor of Engineering - BE - Computer Science & Engineering
Jadavpur University
01.2000
Skills
- Building large-scale distributed systems: microservice architecture, event-driven systems, Kafka streams, Flink, Java, MySQL, MongoDB, vector DB, REST APIs
- Leading IP generation through patent filing and publications, and experience in prior art searching
- Machine learning, deep learning, NLP, and their applications
- Generative AI, semantic search using vector databases, integrating ChatGPT APIs, building custom bots, LLM fine-tuning, prompt engineering, and RAG (retrieval-augmented generation)
- Building an LLM agent for task automation using LangChain, Crew AI, and OpenAI function calling
- Time series data analysis ( ARIMA, holt-winters)
- Building an AI pipeline using Amazon Bedrock
- Researching on RAG evaluation
- Working on the BI pipeline using Apache NiFi, dbt, etc
- Experience with Docker, Amazon Web Services, Elastic Beanstalk, Ansible scripts, and Jenkins
- Expertise in protocol stack development (for GPRS, 3G, LTE, and iDEN) for multimode handsets, and development of a network simulator for conformance testing
- Header compression techniques (ROHC) for TCP/IP, UDP, and RTP headers
- Creating project roadmaps, RFP creation, project planning, estimation, and playing the scrum master role
- IEEE reviewer
- Experience in independent consulting using expert network platforms
Certification
- Machine Learning AZ: Hands-On Python & R In Data Science ( https://www.udemy.com/certificate/UC-2SYYLWKT/ )
- Introduction to Deep Learning ( https://www.coursera.org/account/accomplishments/verify/6RP6H7T7QPQF )
- Artificial Intelligence A-Z: Learn How To Build An AI ( https://www.udemy.com/certificate/UC-37QMXD69/ )
Publications
- Determining Reordering Ratio and minimum LSB bits required at ROHCv2 ( https://priorart.ip.com/IPCOM/000196927 )
- RLC Header compression for LTE network ( https://priorart.ip.com/IPCOM/000195931 )
- Concept of Entropy and its application in machine-learning ( https://b-saby.medium.com/concept-of-entropy-and-its-application-machine-learning-18476e0f013a )
Patents
List of patents/publications/citations: https://scholar.google.com/citations?user=8XZw6K8AAAAJ&hl=en
- Power Management in Multi-Technology wireless communication devices ( https://patents.google.com/patent/US10110737B2/en )
- USER EQUIPMENT SERVICE MANAGEMENT ( https://patents.google.com/patent/US20170339265A1/en )
- Intelligent options in redial screens of communication devices
- Thermal mitigation systems and methods for multi-subscription devices ( https://patents.google.com/patent/US20170070894A1/en )
- Frame Acknowledgment In A Communication Network ( https://patents.google.com/patent/US8761089B2/en )
IEEE papers reviewed - ( https://www.webofscience.com/wos/author/record/2554055 )
Timeline
Director
GigSky
01.2021 - Current
Principal Engineer
GigSky
06.2016 - 01.2021
Independent Consultant
Gigsky Inc
01.2016 - 05.2016
Staff Engineer/Manager
Qualcomm
03.2013 - 12.2015
Senior Architect
Brillio ( Formerly Collabera )
10.2010 - 03.2013
Lead Engineer
Motorola
10.2000 - 10.2010
Master of Technology - MTech - Data Science and AI
Birla Institute of Technology And Science
Bachelor of Engineering - BE - Computer Science & Engineering
Jadavpur University
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