PANKAJ SINGH
Greater Noida
Summary
Senior Java Backend Developer with extensive experience in designing and maintaining enterprise-grade backend applications. Delivered scalable backend services and optimised production applications through expertise in Java, Spring Framework, and Microservices architecture. Led teams in global projects, integrating complex systems and implementing solutions with SAP S/4HANA and MuleSoft.
Overview
7
7
years of professional experience
Work History
Senior SAP Commerce Developer
AKKODIS
Dubai
03.2025 - 08.2025
- Developed B2C e-commerce website and app for grocery and daily needs products in Dubai.
- Business Logic Implementation
- Backend Service Development
- REST API Development
- Integrated various software systems to enable seamless data flow.
- Performance Optimization
- Supported production by resolving issues, ensuring system reliability.
- Agile Delivery
- Team Leadership
Senior SAP CCV2 Consultant
Collabera Digital
09.2024 - 01.2025
- Collaborated with MULESOFT and PIM teams to load product and account data into CCV2, enhancing data integration.
- Developed OCC and exposed REST API for seamless data consumption from MULESOFT to CCV2, improving data accessibility.
- Worked on ODATA API, Used to Create ODATA API through IMPEX.
- Exposed OCC API to generate budget reports for HENRY SCHEIN Inc.
- Led sprint planning, assigning user stories to developers to ensure timely delivery.
- Used to work on Composable Storefront, Provided many APIS to FE.
- Used to work on Headless Architecture, Provides many APIs to FE.
- Worked with Functional team for Tech Grooming for Tech Stories.
- Closely Worked with developers to Quick fix of the issues and bugs.
- Used to connect with QA team for Quick fix on the DATA issues.
- HENRY SCHEIN is B2C E-commerce Website, and it deals with Medical and Dental Supplies Worldwide including vaccines, pharmaceuticals, financial services and equipment.
SAP HYBRIS Commerce Developer
VALTECH
02.2023 - 05.2024
- Developed OCC and exposed multiple APIs for Angular team, enhancing functionality of current project.
- Worked on Headless Architecture - provides many APIs to FE.
- Worked on Composable Storefront and used to provide many APIS to FE developers.
- Implemented new functionality on quoting portal like Create Quote Revision and for each revision there should be number added starting from 0 as HYBRIS Developer.
- Developed many flows like - Create Quotations and Create an Order on Quoting Portals and on Order Entry Portals both.
- Designed workflows for order entry and quoting portals, utilising deal ID to verify embedded SKU status.
- Oversaw E-commerce operations for WESTCON COMSTOR, specialising in electronic items to streamline online sales process.
SAP CX - HYBRIS Commerce Developer
TECH MAHINDRA
11.2021 - 02.2023
- Implemented OCC - Used to expose the API to be consumed by FE.
- Collaborated with the MOJ squad to develop and enhance the Mobile On-boarding Journey using HYBRIS.
- Designed and implemented checkout flows for prepaid and postpaid, incorporating complex logic for improved user experience.
- Implemented Headless Architecture, Connects with FE to explain the APIs, being used for requirement.
- Developed and implemented functionality for current project, enhancing overall system performance.
- Created various workflows, including the migration process to the Sunrise mobile postpaid product within the Sunrise e-shop.
- Developed new subscription activation: Monthly roaming cost limit.
- Managed and modified .XSD and .XML files while facilitating team updates during scrum calls.
- SUNRISE is the B2B E-commerce website based on telco Accelerator. It is based On Switzerland and it deals with Prepaid and postpaid SIM across the Country.
HYBRIS Developer
HPE
03.2021 - 10.2021
- Developed HPE CPQ, a B2B e-commerce website for hardware equipment sales.
- Developed quote edit flow, quote submit flow to save the data to HYBRIS and send that data to S4.
- Have Developed & Implemented the functionality in current project like - QUOTE Creation, Contract Creation, save quote to s4, save doc API to S4.
- Developed partner function for save document and multi-quote editing, enabling seamless data transfer to S4.
- Implemented business logic for asset location and functional location, enhancing product management capabilities.
- Streamlined quote purchase flow, download flow, and email flow, improving customer experience and operational efficiency.
- Implemented the RTM & BRT - DIRECT, INDIRECT, OEM, BROKER based on country specific.
- Implemented Transition for Country specific where added the multiple languages.
- Used to work on delta crone job flow, which is running from S4 to HYBRIS.
- Worked on bug fixing of developed user story.
Technical Consultant (HYBRIS DEVELOPER)
BIRLASOFT
Noida
12.2019 - 03.2021
- Managed data flow between HYBRIS and S4, ensuring seamless integration and accurate document transmission.
- Enhanced QUOTE OUTPUT Page by implementing new fields for Broker on RTM & BRT, improving data accuracy and user experience.
- Collaborated on development of QUOTE cloning and editing page, streamlining user interactions and functionality.
- Worked on the UI Part of this project like on - JSP and java-Script.
- Written IMPEX for APAC Countries and currencies.
- Written code for a specific country to show the flag variables on Front-end.
- Analysed business requirements documents and functional specs.
- Participated in various meetings to discuss Enhancement and Modification Requests.
- Attended daily meetings to address and resolve S4 bugs.
- Worked on the requirement, which got from the business and implemented it.
- HPE CPQ is B2B E-commerce Website and it dealt with Hardware Equipment of computers, and it interacts with the ERP System Through IDOC.
Commerce Back-end Developer
BIRLASOFT
04.2020 - 08.2020
- Implemented e-commerce functionalities for search and order confirmation in INVACARE Rental, improving user experience.
- Created saved cart functionality to streamline customer purchasing process.
- Worked on catalogue management, product creation and media updates, worked on categories and generic variant product as well.
- Developed integration with Salsify to enhance product data management.
- Worked on the email generation service to enable CC emails in HYBRIS (OOTB cc is not supported in HYBRIS).
- Worked on product creation and media management.
- Worked on WCMS - Content Slot, ContentSlotForPage, CMSLinkComponent, SimpleBannerComponent, NavigationComponent, CMSParagraphComponent, JspIncludeComponent etc.
- Worked on Breadcrumbs and Pagination.
- Spring Framework, MVC Architecture.
- Collaborated with team members to achieve project goals and enhance productivity.
- Managed tasks and projects using JIRA to track progress and issues.
- Develops necessary product modifications to satisfy clients' needs.
- INVACARE RENTAL is B2C E-Commerce Website based on New Zealand and it deals with medical equipment which is used at home, and it is available across the countries.
Commerce Back-end Developer
BIRLASOFT
12.2019 - 03.2020
- Understand the requirements from provided functional designs and transform these requirements into technical designs.
- Worked on Customized Product Search Page.
- Worked on WCMS - CMSParagraphComponent, ContentSlotName, Content Slot, ContentSlotForTemplate.
- Implemented custom WISHLIST into B2C accelerator.
- Tailored add to cart feature, enhancing user experience and driving customer engagement on the platform.
- Executed CRONJOB to automate retrieval of customer lists, improving efficiency in data management.
- Collaborated with internal teams and external vendors to streamline project development processes.
Java Developer
WSE Ventures Pvt Ltd
Kolkata
04.2018 - 10.2019
- Implemented Web Services Restful.
- Coded DAO classes using Spring.
- Coded action classes to facilitate application functionality.
- Implemented business logic to meet user needs and enhance application performance.
- Developed code in alignment with project requirements.
- Requirements Analysis & Design.
- Utilised GIT/Stash to manage version control for application project folders.
Java Developer
WSE Ventures Pvt Ltd
04.2018 - 02.2019
- Developed DAO classes to manage database interactions using Spring.
- Implemented action classes to improve application functionality.
- Modified codebase to integrate new features.
- Developed code aligned with project requirements.
- Code for export CSV file and print file with data and managing Java and Java EE application development.
Education
MCA - Computer Application
G L BAJAJ Institute of Technology & Management
Noida, UP01-2017
BCA - Computer Application
ARCADE BUSINESS COLLEGE
PATNA01-2015
Higher Secondary - Science
D S M COLLEGE
JHAJHA, BIHAR01-2012
High School -
S S High School
SONO, BIHAR01-2010
Skills
- Java 8/11/17
- Spring Boot
- Spring MVC
- REST APIs
- Microservices
- Hibernate
- JPA
- JDBC
- MySQL
- Oracle
- MongoDB
- Maven
- Git
- Postman
- JUnit
- Mockito
- Backend programming
- API integration
- RESTful api integration
- Design Patterns
- SOLID Principles
- Multithreading
- Collections Framework
- Exception Handling
- Code optimization
- Docker (Exposure)
- Kubernetes (Exposure)
Interests
Active member of various events: fresheners, farewell, alumni meet. Event Handler in MCA in 2016, organized by College (KAPIL SHARMA) came in Campus. Good outdoor sport player, captain of college's basketball team.
Projects
- SHARJAH COOP, B2C E-Commerce Website and App, dealing with Grocery and Daily Needs products across Dubai and Sharjah., MAR 2025 to AUG 2025, SENIOR SAP COMMERCE Developer, 20
- HENRY SCHEIN, B2C E-commerce Website dealing with Medical and Dental Supplies Worldwide., SEP 2024 to JAN 2025, Commerce Back-end Developer, 100
- WESTCON COMSTOR, E-commerce B2B Website dealing with Electronics items and providing services across various countries., FEB 2023 to MAY 2024, Commerce Back-end Developer, 20
- SUNRISE SWITZERLAND, B2B E-commerce website based on telco Accelerator, dealing with Prepaid and postpaid SIM across Switzerland., NOV 2021 to FEB 2023, Commerce Backend Developer, 40
- HPE CPQ, B2B E-commerce Website dealing with Hardware Equipment of computers, interacting with the ERP System., MAR 2021 to OCT 2021, Commerce Back-end Developer, 20
- HPE CPQ (BIRLASOFT), B2B E-commerce Website dealing with Hardware Equipment of computers, interacting with the ERP System., SEP 2020 to MAR 2021, Commerce Back-end Developer, 16
- INVACARE Rental NZ, B2C E-Commerce Website dealing with medical equipment available across countries., APR 2020 to AUG 2020, Commerce Back-end Developer, 16
- CRICKET FANTASY LEAGUE, An online game where a virtual team of real cricket players is created., FEB 2019 to OCT 2020, Java Developer, 6
- Online Poker Platform, Online poker game played over the Internet., APR 2018 to FEB 2019, Java Developer, 6
Websites, Portfolios and Profiles
https://www.linkedin.com/in/pankaj-singh-79b091122/
Timeline
Senior SAP Commerce Developer
AKKODIS
03.2025 - 08.2025
Senior SAP CCV2 Consultant
Collabera Digital
09.2024 - 01.2025
SAP HYBRIS Commerce Developer
VALTECH
02.2023 - 05.2024
SAP CX - HYBRIS Commerce Developer
TECH MAHINDRA
11.2021 - 02.2023
HYBRIS Developer
HPE
03.2021 - 10.2021
Commerce Back-end Developer
BIRLASOFT
04.2020 - 08.2020
Technical Consultant (HYBRIS DEVELOPER)
BIRLASOFT
12.2019 - 03.2021
Commerce Back-end Developer
BIRLASOFT
12.2019 - 03.2020
Java Developer
WSE Ventures Pvt Ltd
04.2018 - 10.2019
Java Developer
WSE Ventures Pvt Ltd
04.2018 - 02.2019
MCA - Computer Application
G L BAJAJ Institute of Technology & Management
BCA - Computer Application
ARCADE BUSINESS COLLEGE
Higher Secondary - Science
D S M COLLEGE
High School -
S S High School