Shivam Sagar

• Monitor or track project milestones and deliverables.
• Monitor the performance of project team members, providing and documenting performance feedback.
• Made architecture improvements by plotting the metrics on Grafana and made necessary improvements with that plotted metrics.
• Identified and optimized slow queries to improve database performance.
• Successfully maintained and managed running projects on Spring framework.
• Tweaked CPU and memory metrics of kubernetes pods and resolved restarting issues in due to memory leaks.
• Achieved cost savings by optimising infrastructure.
• Handled team dynamics effectively, resolving coding doubts and issues.
• Set up a load testing environment with improved monitoring tools. (k6 load testing tool).
• Deployed Istio service mesh on staging infrastructure to optimise network cost.
• Handled third-party integrations with Payment Gateway and integrated ML services to prevent fraud.
• Built the OTP service by integrating with kaleyra and karix third party API.
• Implemented Kafka on Kubernetes to better manage lag.
• Set up canary deployments for different workloads to prevent bad deployments.
• Added a retryable service for fail-safe API responses.
• Implemented topology constraints to kubernetes deployment which resulted in high availability of the workloads.

• Built the frontend for food ordering which includes the end to end food delivery via website of the magicpin giving smooth without reload just like app using react router.
• Wrote some middleware apis in golang to make parallel calls to backend which helped us to optimise api latency earlier there were serially calling the apis.
• Integrated with ONDC network and built a buyer SAAS app which is used by different clients like ola, tata digital and paytm.
• Improved UX of the merchant portal which is used by merchants to onboard to the ONDC network.
• Built the application for a kiosk which helped us to onboard new users by giving them offers by basically playing a spin the wheel game.
• Identify problems uncovered by testing or customer feedback, and correct problems or refer problems to appropriate personnel for correction.
• Create searchable indices for web page content.
• Recommend and implement performance improvements.
• Evaluate code to ensure that it is valid, is properly structured, meets industry standards and is compatible with browsers, devices, or operating systems.
• Design and implement web site security measures such as firewalls or message encryption.
• Implemented nginx caching to improve website crawling which reduced the page load speed to 150ms resulting in daily crawling of 1M+ pages.
• Renew domain name registrations.

Manga Viewing Website Frontend Design:

• Developed the frontend for a manga viewing website using Vue.js, allowing users to read books in PDF format.
• Implemented responsive design principles to ensure optimal viewing on various devices.

Subscription Platform Development:

• Built a comprehensive subscription platform enabling users to purchase individual manga books or subscribe to weekly, monthly, or yearly plans.
• Integrated secure payment gateways for seamless transactions and plan management.

Authentication System Implementation:

• Developed a robust authentication system providing secure access to manga books.
• Implemented user registration, login, and password management features.

User Experience Redesign:

• Redesigned the entire user experience to enhance reading comfort and engagement.
• Improved the interface layout, navigation, and accessibility for a better user experience.

Reading Progress Feature:

• Created a feature allowing users to resume reading from where they left off.
• Ensured data persistence across sessions for a seamless user experience.

Interactive Carousel Component:

• Developed a carousel feature to display highlighted books, such as "Book of the Week" and "Book of the Month."
• Enhanced user engagement with visually appealing and interactive components.

• Developed the magicpin Blog Website with integration of HTML editor (TINYMCE) and implemented AMP for blog pages to enhance SEO ranking.
• Optimized website performance, reducing page load time and improving key metrics like FCP, FID, LCP, and CLS, enhancing the page score from 35 to 75.
• Implemented Varnish cache with asynchronous backend refresh features.
• Built a comprehensive website on Django, ReactJS, and Redux from scratch, incorporating caching and push notifications.
• Utilized the Service Worker API to implement offline pages and push notifications.
• Developed AMP (Accelerated Mobile Pages) to improve SEO rankings.
• Created a website using Go with features like template preload.
• Enhanced SEO by improving user experience and incorporating Google’s SERP features.
• Prepared detailed project specifications, progress reports, and documentation to support team activities and resolve conflicts.
• Improved system performance through proactive adjustments and bug resolution.
• Collected data on integration issues and vulnerabilities, providing actionable improvement recommendations.
• Upgraded React from version 15 to 16, achieving performance enhancements and new feature integration.
• Employed Material-UI to add interactive and responsive components.
• Developed an end-to-end ordering flow for multiple categories like pharmacy, grocery, and food, using techniques such as polling, redux persist, and local storage for a seamless user experience.
• Collaborated with affiliates like Paytm, PhonePe, and Google Pay for customer acquisition and sales growth.
• Built a PWA for affiliates using their SDKs and JS bridges, facilitating features like location access, user information retrieval, and payment gateway integration.

• Developed and maintained user interfaces using HTML, CSS, and JavaScript.
• Created email templates for branding purposes.
• Implemented features using JavaScript libraries such as React and Vue.js.
• Utilized module bundlers like Webpack to optimize and bundle assets.
• Employed JavaScript transcompilers like Babel for compatibility across different environments.
• Prepared and submitted detailed reports and documentation to assist the development team.
• Contributed to deployment processes by testing, debugging, and resolving issues to ensure optimal performance.
• Maintained and upgraded products to ensure smooth and efficient system operations.