Sunil Kumar K P
Staff Software Engineer @ PayPal | Platform Tech Lead | Scaling Web Platforms & Distributed Systems | Node.js · React · Edge/CDN
Bengaluru
10+ years of work experience
Apr 20233 yrs 6 mosPresent
Bengaluru, Karnataka, India
Senior Platform Engineer – PayPal
• Acted as de-facto Tech Lead across 5+ platform initiatives, owning end-to-end delivery from architecture to production
• Drove cross-functional alignment across WebOps, SEO, Marketing, and Product teams
• Reduced onboarding time by 40% by designing structured knowledge transfer and documentation systems
• Built CI/CD pipelines that reduced deployment time from 1 day to 1.5 hours and eliminated 90% of deployment errors
• Designed scalable CMS platform used by 100+ internal teams across 200+ countries
• Implemented distributed caching system supporting 1M+ users with zero critical production incidents
• Mentored junior and mid-level engineers through code reviews and system design guidance
Oct 20215 yrsPresent
Acted as de-facto tech lead across 5+ concurrent platform initiatives, owning end-to-end delivery from architecture to release. Drove stakeholder alignment across WebOps, DAALM, SEO, Marketing, and Product teams — facilitating architecture reviews and presenting trade-off recommendations to senior leadership. Reduced new engineer onboarding time by 40% through structured KT sessions and documentation; enabled P3 Ops team to independently manage weekly MPP releases. Served as Scrum Master: led daily standups, sprint planning, and backlog grooming; maintained delivery consistency across all commitments. Mentored junior and mid-level engineers through code reviews, design walkthroughs, and best-practice documentation in Confluence. Identified and escalated risks early with structured mitigation plans; built reputation as a dependable technical partner across teams. Designed and developed CMS mono repo (rendering engine + CMS client) powering 100+ internal PayPal teams across 200+ countries and 40+ languages. Architected end-to-end Git CDN → QA CDN migration: transformed manual process into automated CI pipeline, eliminating 90% of deployment errors and cutting deployment time from hours to minutes. Built distributed, fault-tolerant caching system supporting 1M+ concurrent users with LRU + JUNO caching; implemented microservices architecture reducing cross-component dependencies. Created CI/CD pipeline reducing time-to-deployment from 1 day to 1.5 hours; established reusable patterns adopted across teams. Implemented observability stack using Datadog, DDRUM, Splunk, and Sherlock for proactive monitoring; zero critical production incidents during major releases. Architected Adobe Target edge caching solution improving personalization delivery consistency and reducing page load times at scale. Pioneered PayPal's llms.txt / AEO strategy: proactively implemented emerging AI standards before industry adoption, building dynamic Python service for market-scoped llms.
Sep 20211 yr 8 mosApr 2023
Bengaluru, Karnataka, India
Closely working with our product manager to understand product requirement before development or analysis.
Worked together with scrum master, product and team to translate requirements into scrum dashboard, aligning with deliverable timelines and supporting to improve the process. Technical design: Involved in many technical and architectural design for platform initiatives CMS - cache flush, fault tolerance, setting up cypress e2e test suit by closely discussing with architects.
Quality: before writing a single piece of code first thing I check is how scalable code is, how efficient and organized the code looks there by ensuring code quality is being met
Leading projects: Led mppnodeweb project (CMS module and pricing module),mppcomponentnodeserv project for serving header and footer content, leading e2e test project for ensuring proper automation tests are in place.
I always believe when a team is able to deliver and that's a real success. So I helped our team understanding end to end architecture of mppnodeweb, CMS and fault tolerance design. Also for our QA engineer I explained cypress e2e platform which was setup by me initially. I always come forward where team needs any support.
Oct 20201 yrSep 2021
Bengaluru, Karnataka, India
Goalsr provides platform and services comprising Digital Operations, Infrastructure, Security and Customer Experience.
Involved very much in training other employees in full stack development.
Worked closely with client to fully understand their requirements on Radix Image Capture and delivered accordingly.
Worked on building generic components to integrate into application
worked on building resumable file upload solution where multiple files of upto 5gb can be uploaded simultaneously with pause/stop/resume option using NodeJS
Worked on building a UI and APIs for pensionary application through which one can generate live life certificate a proof that pensioner is alive based on AI and image comparison.
Tech Stacks: ReactJS, HTML, CSS, Javascript, ESNext, Redux, React Hooks, NodeJS, Express, MongoDB, MySql
Oct 20201 yrSep 2021
Built scalable COVID-19 tracker web app for Government of Karnataka; provided KT to new recruits and trained on full-stack development. Delivered Radix Image Capture and resumable multi-file upload (up to 5 GB, pause/stop/resume) using Node.js. Built pensionary live-life certificate UI and APIs — enabling digital proof-of-life for pension distribution.
Apr 20207 mosOct 2020
Bengaluru, Karnataka, India
Marlabs Inc enables Digital Transformation using Digital360 platform comprising Digital Operations, Infrastructure, Security and Customer Experience.
• Worked with PAXIA client to develop In-Flight Exchange(IFX) product which enables Airline user and Caterer communicate very efficiently and allows to take in-flight services to next level and it’s a platform where airline user and a caterer can plan, schedule, order and validate services.
worked creating and building header information for Invoicing which involved planning and implementing both UI layout and logic.
worked in creating and building boarding flight information, order summary, invoice break down, line item details from flight to flight.
worked in creating invoicing rules, handling spam registrations scenarios. Update/edit invoice rules, rule comments, manage rules
on Admin side worked on building, managing invoicing period manually as well as automatically.
handling HTTP request and error using RxJS for working with Observables.
• Worked on building generic components to integrate into application and increased the overall performance of application by 10% by introducing latest features available in React and incorporating different hooks and by delivering completely reusable web components for business requirements.
• Worked on modular CSS styling using styled components and CSS modules by eliminating styles leaks in our application.
Apr 20207 mosOct 2020
Developed In-Flight Exchange (IFX) product for PAXIA client: airline and caterer communication platform for planning, scheduling, ordering, and validating in-flight services.
Aug 20163 yrs 9 mosApr 2020
Bengaluru, Karnataka, India
BOSCH is a leading company for proving B2B and B2C E-Commerce
solutions and Automotive solutions.
I worked as a full stack developer in an E-Commerce platform team, to for proving B2B and B2C E-Commerce solutions to clients internal to Bosch.
• Worked closely with client to fully understand their requirements and delivered accordingly.
• Handled knowledge transitions to the new recruits
• Component development In Angular/React/Stencil to realize the e-sales and supporting B2B and B2C e-commerce applications.
• worked on different template rendering engines like pug, jade, ejs etc
• worked on User management for login and registration. Worked in user management system where the registered user in our platform will be given permission to create new users with special permissions to access BCP site which involved following tasks
developing registration and login UI, layout and functionality
storing and retrieving user from database.
handling spam registrations scenarios.
client-side validations for registration.
server-side validation in Node.js and Express.js
handling authentication and route guards.
controlling and restricting user and admin access based on the roles and authorization.
handling HTTP request and error using RxJS for working with Observables.
handling routes and API calls, creating API end points for CRUD operations.
• worked in POC web component store where all web components used in BCP listed along with their documentation which can be accessed by Bosch Internal Employees and was successfully implemented and hosted.
• Overall design and development of cart simulation and place order page, review cart page, pagination, progress bar etc.
Aug 20163 yrs 9 mosApr 2020
Designed RESTful web APIs integrating third-party services, optimising front-end UX — resulting in 10% increase in user engagement. Implemented Cypress automated testing suite, achieving 90% code coverage and reducing production issues by 5%. Built full-stack BCP user management system with role-based access control using Node.js and multiple template engines.
Sunil’s AI Stack
Education
BE - Bachelor of Engineering, Computer Science
University Vishweshwaraya College of Engineering
20124 yrs2016
Bachelor of Engineering, Computer Engineering
UVCE
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