Saibal Das Email & Phone Number

Waterloo, On, Ca

❖ OpenText Contact Center Analytics - Qfiniti & ExplorePrimary responsibilities: o Lead Software Developer of Contact Center Analytics (CCA) aka Explore. OpenText Explore is post-call analytics for call-center interactions such as recording, chats, emails using transcriptions (Nuance Transcription Engine), Solr, .NET, C#, PowerShell. OpenText Magellan Text Mining Engine provides call transcriptions and Solr search capability. o Involved in activities such ❖ Long-term planning and providing/building proof-of-concept using technologies such as Machine Learning, Agentic AI, LLM, NLP & NLU impacting the product domain and providing feedback to Product Management ❖ Mid-term planning working on product Road-map items such as Cloud Migration, Modernization and Scaling and building Scrum Backlog ❖ Day-to-day activities such as Customer interaction, development, Team mentoring, Team building and interacting with other product line within OpenText to explore their usage with Qfiniti & Explore o Projects: ❖ Working on AWS Cloud migration of OpenText Qfiniti and Explore. AWS VM, Terraform, New Relic, OpenTelemetry (Prometheus, Grafana) ❖ Working on Modernization and Scaling of Background processes using Docker, Kubernetes, RabbitMQ, MassTransit o Involved in Innovation Projects : ❖ Machine Learning proof-of-concept using LLM (Large Language Model), Huggingface Transformers, Python, FastAPI, MLFlow, Jupyter Notebook, Agentic RAG (Retrieval Augmented Generation) using LangChain, AutoGen, Semantic Kernel, Vector Database (Cohere, Pinecone) ❖ Machine Learning modeling using Keras and PyTorch and use of AutoML with MLflow and Airflow ❖ REST API in Go/GoLang: Developed proof-of-concept project for REST API in Go/GoLang for recording and chat ingestion to Explore in AWS ❖ Investigating different aspects of Machine Learning System Design such as Agentic AI Framework, Feature Engineering, AI-powered Search, Knowledge Graph

Schaan, Li

Project:❖ Hilti Profis Engineeringo Lead Developer of the Hilti Group flagship product Profis Engineering. Profis Enginerring enables automatic and advanced load calculation of Hilti anchors and base plates increasing productivity and improving value in civil construction projects.o Microservice architecture on AWS. Worked with remote teams in different time zone involving Software Architect, Product Owner and Planner. o Deployed to AWS using CI/CD Tools : .NET Core, Amazon Elastic Kubernetes Service (Amazon EKS), Docker, Terraform, GitLab, Visual Studio, Angular, AWS Postgres

Plano, Tx, Us

Project:❖ Spok Go Care Connect Platformo Lead the architecture and design initiative of the Voice stack of Spok Go Care Connect Platform (Cloud Native Contact Center development for Clinical Healthcare Communications and Collaborations on Amazon Web Services (AWS)) using Twilio. Presented to C-Level executive during architecture review,o Lead a team of 5 engineers in an agile environment. Involved in sprint and backlog planning, and developmento Developed the foundation of the Spok Go Platform -Voice using AWS Serverless Application Model (SAM), API Gateway, AWS Cognito, AWS RDS Serverless (PostgreSQL), Jenkins, .NET Core Web API, .NET Core 3.1, Visual Studio 2019. The foundation integrated with the rest of the Spok Go Platform such as React Front-end, Messaging, Twilio Voice APIo Tools: Visual Studio 2019, .NET Core 3.1, C#, Web API, AWS Lambda, AWS Fargate, AWS Aurora Serverless, Twilio SDK (Programmable Voice & Video, Task Router, SIP Domain), Freeswitch, Jenkins

Vancouver, Bc, Ca

Projects❖ Health Monitoring Service, May 2018 - November 2019o Lead Engineer of team developing the Microsoft Azure hosted microservice based Health Monitoring System - a high visibility project involving Motorola Solutions (MSI), o Led the microservice implementation of HMS PoC around the Avigilon Blue ecosystem - a monolithic cloud application using the strangler pattern,o Tools: Azure IoT, Cosmos DB, RabbitMQ, Domain-Driven Design, Kubernetes (AKS), Docker, Azure DevOps. .NET Core, o Involved in architecture decision & quick study. Used Domain-Driven Design (DDD) for domain modelling,o Investigated Event Sourcing & CQRS using Kafka and analytics using Azure Databricks❖ Unified Web Client, October 2018 - April 2019o Lead Engineer of team integrating the Microsoft Azure hosted Avigilon Blue (an AI and IoT based VSaaS- Video Surveillance as a Service cloud platform) and on-premises Avigilon Control Center, o Tools: Microsoft Azure IoT, Azure Service Bus, Redis Cache, SignalR, ReactJS, Entity Framework, LINQ, Visual Studio, Web API, Azure Web App, Docker, Kubernetes

West Palm Beach, Fl, Us

Client: PwC (PricewaterhouseCoopers) ❖ July 2018 - October 2018• Web application development using ASP.NET MVC, Entity Framework, LINQ, SQL Server• Front-end development using ASP.NET MVC Razor, jQuery, DevExpress, , HighCharts .NET, HighMapsVisual Studio 2017❖ February 2018-June 2018• Portal development using ASP.NET Core 2.0, React.js, Knockout.js, ASP.NET Web API, SQL Server Reporting Services• Front-end development using React.js, Server-side rendering, Axios, React MultiselectVisual Studio 2017, SPA Templates

Allen, Tx, Us

❖ About the Project: o Engage Call Recording and Work-Force Optimization for Cloud and On-Premise Call Center with integration with Avaya CM. Avaya IPO, Avaya Contact Center, Cisco CUCM, Cisco Contact Center, ShoreTel PBX/CONNECT Cloud, ShoreTel Contact Center, Mitel MiTAI, Mitel SRC, Microsoft Lync, Genesys❖ Responsibilities: o Led the design and development of all aspects of CTI integration of Engage with all compliant PBX including Contact Centers. Development involved using TAPI, Avaya TSAPI SDK, Avaya ACCS SDK, Cisco TAPI, Cisco CTIOS SDK, Avaya IPO TAPI, Avaya IPO CC SDK, ShoreTel TAPI, ShoreTel ECC SDK, Mitel MiTAI SDK, Mitel SRC SDK, Microsoft Lync 2015 SIP SDK,o Developing features using C++, Windows Services, .NET, C#,o Developing ASP.NET Web Forms Web Client development that gives real-time call and status of VoIP recording. Used .NET COM InterOp, JavaScript. Trouble-shoot Silverlight issues,o Participated in Scrum process of the department,o Converting ASP.NET Web Forms Client to ASP.NET MVC,o Microsoft Lync Server 2013 setup for call recording. Used SIP SDK and UCMA SDK,o Secondary project Angular SPA using PrimeNG integration with ASP.NET Web API,o Proof-of-concept project: • Used Hortonworks Hadoop Sandbox to develop MapReduce algorithms for analyzing Call log. • Used Apache Spark to stream call details feed (similar to twitter feed). Investigated the usage of SparkML to develop machine learning mechanism for abnormal call flow. Investigated the usage of algorithms such as anomaly detection and clustering using PySpark and Scala, • Investigate and developed integration with Saleforce, ❖ Tools: o C++, C#, .NET, Visual Studio 2006 to Visual Studio 2017, Microsoft TFS, Windows Server, COM, ActiveX, JavaScript, Multi-threading, TCP/IP Windows Socket, SQL Server, OLE DB, Windows Forms, Web Forms, ASP.NET/ASP.NET MVC, ADO.NET,

Us

Project: Verizon.com’s Digital Companion Operational Support Systems (August 2003 to November 2003): ❖ About the Project: o Digital Companion Operational Support Systems is the end-to-end provisioning system for Digital Companion implemented in Microsoft .NET,o The front-end for the systems hooks into the Verizon.com online ordering web-site implemented using ASP.NET,❖ Responsibilities: o As a Software Architect for DC-OSS, responsibilities included architecting a scalable, extensible and high-performance software system, producing design documents,o As a developer, responsibilities included implementing the Submission Engine as .NET Windows Service for capturing orders for workflow,❖ Tools: o Windows 2000, Visual Studio .NET, C#, ASP.NET, ADO.NET, XML Web Services, .NET Remoting, .NET Windows Services, ASP.NET Server Controls, Windows Forms, Web Forms, SQL Server 2000, XML Serialization, Visio 2000,Project: Verizon’s Retail COFEE (Converged Front-End Engine) (November 2002 to July 2003): ❖ About the Project: o Retail COFEE (Converged Front-End Engine) is Verizon’s Order Processing and Billing system for order collection from retail customers. Based on COM, ATL & C++ middleware for interfacing to CORBA Server, the system is an integrated platform for ordering different services available from Verizon. The system also interacts with legacy Mainframe System. It is used by about 16,000 users,❖ Responsibilities: o Core member of Verizon’s Retail COFEE Performance Team formed to remove major performance bottle-necks,o Successfully implemented performance enhancements for scenarios by modifying flows using extensive multi-threading in C++ COM, ATL,o The average handling time for scenarios such as Telephone Number Search, Change Order and Release Order were reduced by 40% after this initiative,❖ Tools: o Primary: Windows 2000, Visual C++, COM/ATL, Template Library, ADO, SQL Server,

Project: Varros Telecom’s XpressMS & Optical Wavelength Manager (May 2000 to August 2002): ❖ About the Project: o Optical Wavelength Manager is an Operation Support System (OSS) for Optical Networks. XpressMS is a Rapid Application Development (RAD) system for Element Management System (EMS) providing Service Level Activation (SLA) and Quality of Service (QoS) functionality and also Integration with Customer Care and Billing System.❖ Responsibilities: o Produced the architecture and high-level design documents using Rational Rose UML,o Interacted with Marketing to understand Customer Requirements and translated the Requirements into Technical Specification,o Built and led a team of engineers (20 members) through training and mentoring,o Investigated Optical (GMPLS), Multi Protocol Label Switching (MPLS), IP (including Policy-based management, COPS and RSVP) and ATM Management techniques,o Provided implementation guidelines for the COM+ framework of the project,o Successfully integrated .NET Framework into the architecture by developing .NET assemblies in C# which interfaced to COM+ using .NET Remoting (InterOp),o Successfully implemented a mixture of client interface using ASP and ASP.NET Web Form,o Built ActiveX Control which displayed topology information using drag-and-drop,❖ Tools: o Windows 2000, COM+, .NET Framework, ASP.NET, ADO.NET, Visual C#, Visual C++ 6.0, Visio 2000, Active Template Library (ATL) 3.0, COM/DCOM, Microsoft SOAP XML Toolkit, Internet Information Server (IIS) 5.0, SQL Server 2000, Microsoft Foundation Class (MFC), ActiveX Controls, Active Data Objects (ADO), Windows Messaging API (MAPI), Collaboration Data Objects (CDO), Active Directory (ADSI), Microsoft Message Queue (MSMQ), Data-Connection Limited’s Multi Protocol Label Switching (DC-MPLS), SNMP Research International (SRI) Brass and Emanate Toolkit, Rational Rose UML Toolkit,

Project: Tellabs’ Light Path Manager (Titan 6100, March ‘99 to April 2000) & Broadband Transport Manager (Titan 6500, February 1998 to February 1999)❖ About the Project: o LPM is a Telecommunications Management Network (TMN) based Network Management System (NMS) for Tellabs’ Dense Wave Division Multiplexing (DWDM) product line. The LPM module provided the management functionality for Optical Light Path provisioning and validation,o BTM EMS is the TMN based Element Management System (EMS). Tellabs’ thin client initiative is to provide a generic client that could be used in management of various Tellabs’ product such OTS and BTM,❖ Responsibilities:o Successfully led a six-member team for developing the Light Path Management (LPM) module of Tellabs’ OTS (Optical Transport System, Titan 6100) at Dallas,o Developed the Transaction Manager Component of the Provisioning Module, the light path specific functionality of the thin client, and produced Design Documents using Rational Rose Unified Modeling Language (UML) Toolkit,o Developed the GUI proto-type of Tellabs’ Optical Transport System (OTS) (also known as Titan 6100) and Thin Client of Tellabs’ Broadband Transport Manager (BTM) EMS (also known as Titan 6500),❖ Tools: o Windows NT 4.0, Visual C++ 5.0, Iona’s Orbix Corba Implementation, Iona’ OrbixTalk Event Services and Naming Service, Stingray’s Objective Toolkit, Object Design Inc.’s ObjectStore Object-oriented Data Base Management System, Euristix’s EMSX UI (also known as Generic Management Platform, GMP), Microsoft Foundation Class (MFC), Rational Rose UML Toolkit,

Bangalore, Karnataka, In

Master Of Technology

Bachelor Of Technology