Available to hire
Hi, I’m Sagar Shirdishinde, a seasoned Senior Software Engineer with over 10 years of experience specializing in back-end API development, scalable web applications, and modern JavaScript frameworks like React and Vue. I have a passion for building impactful software with clean, maintainable code and thrive in agile teams where I can collaborate with cross-functional members including product managers, UI/UX designers, and DevOps engineers.
I have designed and developed robust systems that support energy management platforms, healthcare technology solutions, and customer engagement platforms. My expertise includes Ruby on Rails, Node.js, PHP frameworks like Laravel, Docker, Kubernetes, AWS cloud services, and CI/CD workflows. I enjoy mentoring junior developers and implementing best practices to improve team velocity and code quality.
Skills
Experience Level
Expert
Expert
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Work Experience
Senior Software Engineer at Engie North America Inc.
October 1, 2015 - PresentLed a team of developers in designing, building, and maintaining scalable Ruby on Rails applications supporting ENGIE’s energy management and sustainability platforms. Architected back-end systems to manage real-time energy data, user accounts, and reporting dashboards, ensuring high availability and security. Collaborated with cross-functional teams including product managers, UI/UX designers, and DevOps engineers to deliver mission-critical features on schedule. Created reusable React components and optimized performance with server-side rendering and static site generation. Oversaw code reviews, sprint planning, and agile ceremonies, improving team velocity and code quality. Integrated third-party APIs and internal microservices to enhance platform capabilities such as smart metering and sustainability tracking. Mentored junior developers, established best practices, and improved CI/CD workflows using GitLab, Docker, and Kubernetes. Maintained version control using Git/GitHub and
Amazon Web Services Software Development Engineer Cloud Computing Leader at Amazon Web Services
October 20, 2015 - August 5, 2025Reduced average page load time by 50% using Gatsby’s optimized image handling and pre-rendering. Utilized Git for version control, managing changes efficiently and promoting collaborative project contributions. Maintained clear communication with team members and clients using tools like Slack and Zoom to coordinate development efforts and provide updates. Specialized in backend API development, scalable web applications, and modern JavaScript frameworks like React and Vue. Skilled in Ruby on Rails, Node.js, PHP, Laravel, and CMS integrations such as Strapi and WordPress. Experienced in Agile teams, database architecture, and deploying secure, high-performance applications.
Senior Software Engineer/Team Lead at Care Stitch
May 20, 2025 - August 5, 2025Care Stitch is a healthcare technology solution provider offering patient/consumer engagement platforms leveraging collaborative solutions and contact centers. Took part in Patient Assist, Patient Notify, and Patient Secure Payment projects. Built omnichannel (Text | Chat | Voice) notification systems triggered by real-time EHR events for appointments, pharmacy refills, and bills from Epic, Cerner. Configured and deployed technology products based on customer requirements including Linux, Postgres, Mirth Connect, Nginx, Ngrok, Cisco UC, AWS Pinpoint, and Five9. Developed custom features for customer projects where features were not out of the box. Troubleshot issues during Contact Center Integration and HL7 Testing and User Acceptance Testing. Worked closely with CCaaS providers like Five9, Genesys, Talkdesk, and Vonage.
Software Engineer at Spin Sci Technologies
August 20, 2013 - August 5, 2025Developed and maintained data processing pipelines for advertising metrics, ensuring high accuracy and performance. Built user-facing dashboards and reporting tools using modern front-end technologies. Integrated APIs from major ad platforms such as Google and Facebook to aggregate campaign data. Collaborated with product and analytics teams to implement features that improved customer insights and data accessibility. Contributed to scaling the platform to support increasing data volume and new enterprise clients. Designed and developed UI with reusable and scalable components utilizing React, React Native, Vue.JS, Angular, and Three.JS. Worked closely with cross-functional teams to troubleshoot bugs, perform code reviews, and implement performance enhancements, contributing to the app's reliability, stability, and overall efficiency.
Software Engineer at Ad-Juster
August 20, 2013 - August 5, 2025Ad-Juster is a small sales and marketing software company providing data reporting and analytics for digital advertising to horizontal companies. Developed custom features and tools to support ad reporting and analytics. Troubleshot issues and improved system integrations during development. Worked closely with cross-functional teams and integrated APIs to improve advertising platform capabilities.
Senior Software Engineer/Team Lead at ENGIE North America Inc.
October 1, 2015 - PresentLed a team of developers in designing, building, and maintaining scalable Ruby on Rails applications supporting ENGIE's energy management and sustainability platforms. Architected back-end systems to manage real-time energy data, user accounts, and reporting dashboards, ensuring high availability and security. Collaborated with cross-functional teams including product managers, UI/UX designers, and DevOps engineers to deliver mission-critical features on schedule. Created reusable React components and optimized performance with server-side rendering and static site generation. Oversaw code reviews, sprint planning, and agile ceremonies, improving team velocity and code quality. Integrated third-party APIs and internal microservices to enhance platform features such as smart metering and sustainability tracking. Mentored junior developers, established best practices, and improved CI/CD workflows using GitLab, Docker, and Kubernetes. Maintained version control using Git/GitHub and ensure
Amazon Web Services Software Development Engineer Cloud Computing Leader at Amazon Web Services
October 1, 2015 - August 5, 2025Worked at multiple locations (Ellenton, FL and Houston, TX) contributing to cloud computing and software engineering projects. Gained experience in AWS services, cloud architecture, and scalable system design during this period.
Senior Software Engineer / Developer at Care Stitch
May 1, 2025 - August 5, 2025Developed healthcare technology solutions for patient/consumer engagement leveraging collaborative solutions and contact centers. Participated in Patient Assist, Patient Notify, and Patient Secure Payment projects. Built omnichannel (Text, Chat, Voice) notification systems triggered by real-time EHR events for appointments, pharmacy refills, and billing integrating with Epic and Cerner. Configured and deployed technology products based on customer requirements involving Linux, Postgres, Mirth Connect, Nginx, Ngrok, Cisco UC, AWS Pinpoint, and Five 9. Developed custom features for customer projects outside standard offerings using Java, JavaScript, Ajax, and jQuery. Troubleshot contact center integration, HL7 testing, and user acceptance testing. Worked closely with CCaaS providers including Five 9, Genesys, Talkdesk, and Vonage.
Software Engineer at Ad-Juster
October 1, 2013 - August 5, 2025Worked at a small sales and marketing software company providing data reporting and analytics for digital advertising to horizontal companies. Developed and maintained data processing pipelines for advertising metrics ensuring high accuracy and performance. Built user-facing dashboards and reporting tools using modern front-end technologies. Integrated APIs from major ad platforms including Google and Facebook to aggregate campaign data. Collaborated with product and analytics teams to implement features improving customer insights and data accessibility. Contributed to scaling the platform to support increasing data volume and new enterprise clients. Designed and developed UI with reusable and scalable components utilizing React and React Native, Vue.js, Angular, and Three.js.
Software Engineer at Spin Sci Technologies
August 1, 2013 - August 5, 2025Provided patient/consumer engagement platforms leveraging collaborative solutions and contact centers to drive enhanced experiences. Built custom features in Java, JavaScript, Ajax, and jQuery. Worked closely with contact center and telecom providers and supported HL7 testing and user acceptance testing. Configured Linux, Postgres, Mirth Connect, Nginx, and AWS Pinpoint technologies for product deployment. Troubleshot technical issues during contact center integrations.
Senior Software Engineer / Team Lead at ENGIE North America Inc.
October 1, 2015 - PresentLed a team of developers in designing, building, and maintaining scalable Ruby on Rails applications supporting ENGIE’s energy management and sustainability platforms. Architected backend systems to manage real-time energy data, user accounts, and reporting dashboards, ensuring high availability and security. Collaborated with product managers, UI/UX designers, and DevOps engineers to deliver mission-critical features on schedule. Created reusable React components and optimized performance with server-side rendering and static site generation. Oversaw code reviews, sprint planning, and agile ceremonies, improving team velocity and code quality. Integrated third-party APIs and internal microservices to enhance platform capabilities such as smart metering and sustainability tracking. Mentored junior developers, established best practices, and improved CI/CD workflows using GitLab, Docker, and Kubernetes. Maintained version control using Git/GitHub and ensured clean code, documentation,
Amazon Web Services Software Development Engineer, Cloud Computing Leader at Amazon Web Services
October 1, 2015 - August 5, 2025Led design and development of cloud-based solutions supporting AWS network growth. Built fault detection and remediation systems that were efficient, reliable, and stable under abnormal situations such as partial network loss and hardware failure. Analyzed runtime performance and ran stress tests under different scenarios to ensure system components met desired behavior, efficiency, and availability. Developed tools to support recovery of large-scale events with better automation and reduced risks of human errors. Developed scalable Django applications for government organizations focusing on data integrity and user-centric interfaces. Built real-time tracking features using WebSocket technology to increase transparency and customer satisfaction. Contributed to frontend development implementing responsive design principles and enhancing user interfaces with JavaScript, PHP, and CSS. Worked closely with cross-functional teams to troubleshoot bugs, perform code reviews, and implement per
Senior Software Developer at Care Stitch
May 1, 2025 - August 5, 2025Care Stitch is a healthcare technology solution provider. Took part in Patient Assist, Patient Notify, and Patient Secure Payment projects. Built omnichannel (Text, Chat, Voice) notification systems triggered by real-time EHR events for appointments, pharmacy refills, and bills from Epic, Cerner. Configured and deployed technology products based on customer requirements including Linux, Postgres, Mirth Connect, Nginx, Ngrok, Cisco UC, AWS Pinpoint, and Five9. Developed custom features for client projects where features were not out-of-the-box. Troubleshot problems during Contact Center Integration and HL7 Testing and User Acceptance Testing. Worked closely with CCaaS providers like Five9, Genesys, Talkdesk, and Vonage.
Software Engineer at Spin Sci Technologies
August 1, 2013 - August 5, 2025Provided patient/consumer engagement platforms leveraging collaborative solutions and contact centers to drive enhanced experiences. Developed and maintained data processing pipelines for advertising metrics to ensure high accuracy and performance. Built user-facing dashboards and reporting tools using modern front-end technologies. Integrated APIs from major ad platforms (Google, Facebook, etc.) to aggregate campaign data. Collaborated with product and analytics teams to implement features that improved customer insights and data accessibility. Contributed to scaling the platform to support increasing data volume and new enterprise clients. Designed and developed UI with reusable and scalable components using React, React Native, Vue.js, Angular, and Three.js.
Software Engineer at Ad-Juster
July 1, 2012 - August 5, 2025Ad-Juster is a small sales and marketing software company providing data reporting and analytics for digital advertising to horizontal companies. Developed custom features and integrated various APIs. Worked on ad campaign analytics, user dashboards, and reporting tools. Contributed to feature implementation improving customer insights and analytics. Worked extensively with APIs and technologies related to digital marketing and advertising analytics.
Senior Software Engineer / Team Lead at ENGIE North America Inc.
October 1, 2015 - PresentLed a team of developers in designing, building, and maintaining scalable Ruby on Rails applications supporting ENGIE's energy management and sustainability platforms. Architected back-end systems to manage real-time energy data, user accounts, and reporting dashboards, ensuring high availability and security. Collaborated with product managers, UI/UX designers, and DevOps engineers to deliver mission-critical features on schedule. Created reusable React components and optimized performance with server-side rendering (SSR) and static site generation (SSG). Oversaw code reviews, sprint planning, and agile ceremonies to improve team velocity and code quality. Integrated third-party APIs and internal microservices to enhance platform capabilities such as smart metering and sustainability tracking. Mentored junior developers, established best practices, and improved CI/CD workflows using GitLab, Docker, and Kubernetes. Maintained version control using Git/GitHub while ensuring clean code p
Amazon Web Services Software Development Engineer Cloud Computing Leader at Amazon Web Services
August 1, 2018 - August 5, 2025Worked on AWS Cloud computing projects in San Diego, CA between 2015-2018. Specific project details are not provided.
Senior Software Engineer at Care Stitch
May 1, 2025 - August 5, 2025Contributed to the Care Stitch healthcare technology solutions provider, working from Ellenton, FL (2013-2015) and Houston, TX (2018-2025). Designed and developed individual components of a fault detection and remediation system that are efficient, reliable, and stable under abnormal situations such as partial network loss and hardware failure. Analyzed runtime performances and ran stress tests under different situations to ensure system components meet desired behavior, efficiency, and availability. Developed tools to support recovery of large-scale events with better automation and reduced risks of human errors. Scaled the system to support AWS network growth. Designed and developed Django applications for government organizations focused on data integrity and user-centric interfaces. Played a key role in redesigning and implementing a real-time tracking feature using WebSocket technology, increasing transparency and customer satisfaction. Contributed to frontend application developm
Software Engineer at Ad-Juster
August 1, 2013 - August 5, 2025Worked at Ad-Juster, a small sales and marketing software company providing data reporting and analytics for digital advertising to horizontal companies. Responsibilities included developing and maintaining data processing pipelines for advertising metrics ensuring high accuracy and performance. Built user-facing dashboards and reporting tools using modern front-end technologies. Integrated APIs from major ad platforms such as Google and Facebook to aggregate campaign data. Collaborated with product and analytics teams to implement features that improved customer insights and data accessibility. Contributed to scaling the platform to support increasing data volume and new enterprise clients. Designed and developed UI with reusable and scalable components utilizing React and React Native, Vue.js, Angular, and Three.js.
Software Engineer at SpinSci Technologies
July 1, 2012 - August 5, 2025Provided a patient/consumer engagement platform leveraging collaborative solutions and contact centers to drive enhanced experiences. Participated in Patient Assist, Patient Notify, and Patient Secure Payment projects. Built omnichannel (Text, Chat, Voice) notification system triggered by real-time EHR events for appointments, pharmacy refills, and bills from Epic, Cerner. Configured and deployed technology products based on customer requirements including Linux, Postgres, Mirth Connect, Nginx, Ngrok, Cisco UC, AWS Pinpoint and Five9. Developed custom features for customer projects where out-of-the-box features did not exist using Java, JavaScript, Ajax, jQuery. Troubleshot problems during Contact Center Integration and HL7 Testing and User Acceptance Testing. Worked closely with CCaaS providers like Five9, Genesys, Talkdesk, and Vonage.
Senior Software Engineer at ENGIE North America Inc.
August 1, 2018 - PresentLed a team of developers in designing, building, and maintaining scalable Ruby on Rails applications supporting ENGIE’s energy management and sustainability platforms. Architected back-end systems to manage real-time energy data, user accounts, and reporting dashboards ensuring high availability and security. Collaborated with cross-functional teams including product managers, UI/UX designers, and DevOps engineers to deliver mission-critical features on schedule.
Senior Software Engineer/Team Lead at Care Stitch
August 1, 2018 - August 5, 2025Created reusable React components and optimized performance with server-side rendering (SSR) and static site generation (SSG). Oversaw code reviews, sprint planning, and agile ceremonies improving team velocity and code quality. Integrated third-party APIs and internal microservices to enhance platform capabilities like smart metering and sustainability tracking. Mentored junior developers and improved CI/CD workflows using GitLab, Docker, and Kubernetes.
Amazon Web Services Software Development Engineer Cloud Computing Leader at Amazon Web Services
October 1, 2015 - August 5, 2025Maintained version control using Git/GitHub and ensured clean code practices, documentation, and component modularity. Reduced average page load time by 50% using Gatsby’s optimized image handling and pre-rendering. Maintained clear communication with team members and clients using Slack and Zoom to coordinate development efforts and provide updates. Developed full-stack applications specializing in scalable backend APIs, modern JavaScript frameworks, and CMS integrations.
Software Engineer at Spin Sci Technologies
August 1, 2013 - August 5, 2025Developed a patient/consumer engagement platform leveraging collaborative solutions and contact centers to drive enhanced experiences. Participated in Patient Assist, Patient Notify, and Patient Secure Payment projects. Built omnichannel (Text, Chat, Voice) notification systems triggered by real-time EHR events for appointments, pharmacy refills, and billing from Epic and Cerner. Configured and deployed technology products based on customer requirements with Linux, Postgres, and AWS. Developed custom features for projects where out-of-the-box solutions were insufficient.
Software Engineer at Ad-Juster
July 1, 2012 - August 5, 2025Developed and maintained data processing pipelines for advertising metrics ensuring high accuracy and performance. Built user-facing dashboards and reporting tools using modern front-end technologies. Integrated APIs from major ad platforms such as Google and Facebook to aggregate campaign data. Collaborated with product and analytics teams to implement features that improved customer insights and data accessibility. Contributed to scaling the platform to support increasing data volume and new enterprise clients.
Education
Master’s degree of Computer Science at University of California, San Diego
April 1, 2010 - April 1, 2012Bachelor of Computer Science at University of California, San Diego
April 1, 2006 - April 1, 2010Master’s degree of Computer Science at Global TIES - University of California, San Diego
April 1, 2010 - April 1, 2012Bachelor of Computer Science at Global TIES - University of California, San Diego
April 1, 2006 - April 1, 2010Master’s degree of Computer Science at University of California, San Diego
April 1, 2010 - April 1, 2012Bachelor of Computer Science at University of California, San Diego
April 1, 2006 - April 1, 2010Master’s degree of Computer Science at Global TIES - University of California, San Diego
April 1, 2010 - April 1, 2012Bachelor of Computer Science at Global TIES - University of California, San Diego
April 1, 2006 - April 1, 2010Bachelor of Computer Science at Global TIES - University of California, San Diego
April 1, 2006 - April 1, 2010Master’s degree of Computer Science at Global TIES - University of California, San Diego
April 1, 2010 - April 1, 2012Qualifications
Industry Experience
Healthcare, Energy & Utilities, Software & Internet, Financial Services, Government, Media & Entertainment, Retail, Professional Services
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
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Expert
Expert
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