# Sachin Telalwar > Senior Software Engineer at Zocdoc Location: New York, New York, United States Profile: https://flows.cv/sachintelalwar Senior Software Engineer with 10 years of experience in designing and developing scalable web applications, microservices, and data processing systems. Expertise in C#, Java, React, JavaScript, Typescript, and cloud technologies (AWS, Azure). Proven track record in migrating legacy systems to microservices, improving system performance and building efficient tools for data collection and document parsing. Strong background in healthcare, financial services, and enterprise software, with a focus on creating high-impact, user-centric solutions. Adept at leading cross-functional teams, mentoring engineers, and delivering robust applications that meet business goals. Specialties: - Languages: C#, Java, GQL and Javascript - Cloud: Microsoft Azure, AWS - Gen AI-Tools: Cursor, Co-Pilot - Web Technologies: React, Redux, Html, CSS, Ajax - Message Broker: RabbitMQ - DevOps: Docker, Kubernetes, TeamCity and Jenkins - Frameworks: ASP.NET Core, WebAPI, MVC, and NHibernate. - J2EE Technologies: Servlets, JSP. - Mobile application: Android SDK. - Database: SQL Server, MySQL, NoSqlDb. - Tools: Visual Studio, Eclipse, Matrix 10.6, and Enovia V6. - Methodologies: Waterfall model, Agile. - Versioning Tools: GIT ## Work Experience ### Senior Software Engineer @ Zocdoc Jan 2021 – Present | New York City Metropolitan Area - Developing a robust, scalable web application for patients, leveraging C# .NET Core, React, and AWS cloud infrastructure. - Working on transitioning parts of Zocdoc’s booking system from a monolithic architecture to new microservices to increase flexibility and modularity. - Adding scalable new features to the Zocdoc website to enhance the healthcare appointment booking experience, making it simpler, safer, and more efficient for patients. - Played a key role in decoupling Zocdoc's legacy booking system from a monolithic architecture to microservices, improving scalability and maintainability. - Contributed to designing and implementing a GQL layer to integrate microservices with the monolithic system, ensuring seamless transitions during migration. - Built an extensive monitoring system to track performance, detect bottlenecks, and ensure system reliability. - Designed a queuing system to ensure bookings were accepted during downtime, processing them asynchronously while providing accurate messaging to patients. - Collaborating with cross-functional teams of engineers, product managers, and designers to develop patient-focused features. - Analyzing patient needs and software requirements to assess design feasibility within given time and cost constraints. - Conducted code reviews, mentored team members, and participated in system design discussions for robust implementations. ### Senior Software Engineer @ Street Diligence, Inc. Jan 2020 – Jan 2021 ### Software Engineer @ Street Diligence, Inc. Jan 2017 – Jan 2021 | Greater New York City Area • Building a highly scalable Enterprise web application, which makes analyzing and negotiating dense legal and financial contracts more effective • Added single sign-on capability to the street diligence platform using Sustainsys SAML2 library. • Designed and refactored existing monolithic data collection applications into scalable and distributed microservices. • Expanding and adding automation to the data collection capabilities of internal applications to increase collection efficiency and allow data collection from different document types. • Improved legacy applications by replacing them with React, Javascript, Redux, and c# .net core • Contributing to code reviews, application designs, and estimates. ### Software Engineer @ FactSet Jan 2014 – Jan 2017 | Greater New York City Area - Worked for Factset's 'Fixed Income - Terms & Conditions' content collection team. • Responsible for designing, development and support of various in house applications for data collection ranging from GUI applications (C# WPF) to automated services/processes which are written in C#. • Integrated different data collection application to provide cross content validation. • Upgraded and Refactored parts of existing infrastructure from FoxPro/SQL Server 2000 to C#/SQL Server 2008 . • Wrote SQL scripts for release deployment and rollback. • Expanded the data collection capabilities of one application to allow it to collect new data. • Worked on the ways to track research analysts’ productivity and track quality of collected data collected. • Contributing to code reviews, application design discussions, and estimates. ### Software Developer Intern @ George Washington University Jan 2013 – Jan 2014 | Washington D.C. Metro Area - Developing web application designed to help improve the dispatch and management of resources. - The tool would be designed to easily identify available resources that can be dispatched to support calls. •The data collected in the application will be used to analyze overall response time of resources in the field and help to build models to improve response time and staff staging. ### Lab Technician @ George Washington University Jan 2012 – Jan 2013 - Maintain George Washington Universities online ticket system application, utilizing JAVA and JDBC/JSP. - Also to provide technical assistant to servers & Software's of Computer Science department. ### Senior Software Engineer @ Capgemini Jan 2010 – Jan 2012 Total 1.9 years with Capgemini in Product Life Cycle Management (PLM). PLM is an all encompassing approach for innovation, new product evelopment and product information management from ideation to end of product life cycle. The scope of the projects were to develop an application which includes incorporating further enhancements and changes suggested by client without impacting the ongoing practice. I was responsible for : • Analyzed the new requirements for Customization of existing application. • Involved in developing the code and fixing bugs. • Enhanced the user interface of the application using JSP,SERVLET,JAVA and PLM tool. • Developed TCL/SQL script for migrating application and for testing purpose. • Performed Unit Testing and application deployment. ### Undergraduate Student Intern @ Larsen & Toubro Jan 2009 – Jan 2010 - Installing and upgrading the database server and application tools. - Backing up and restoring databases using Cronjob. ## Education ### Master's of Science in Computer Science The George Washington University Jan 2012 – Jan 2014 ### Bachelor of Engineering in Electronics and Telecommunication University of Mumbai Jan 2006 – Jan 2010 ## Contact & Social - LinkedIn: https://linkedin.com/in/sachintelalwar --- Source: https://flows.cv/sachintelalwar JSON Resume: https://flows.cv/sachintelalwar/resume.json Last updated: 2026-03-22