Raj Shekhar Singh

• Ensured seamless integration between front-end and back-end systems by coordinating closely with design teams during development phases.
• Created a robust central realtime architecture that powers the core app and seamlessly integrates with third-party games and platforms
• Led the team to improve response time for APIs from 3.4 sec to 0.2 sec.
• Evaluate and select appropriate technologies, frameworks, and tools to enhance the app's performance, security, and user experience.
• Keep abreast of industry trends and integrate new technologies where applicable.
• Setting up the architecture and infra for US launch of app.
• Revamped backend architecture, leading to a 70% reduction in load on API servers and a 50% reduction in AWS costs.
• Implemented infrastructure improvements to enhance app stability and reduce operational costs.
• Used redis as cache server. Created efficient cache structure to minimize cache expiration and increased redis throughput.

• Used critical thinking to break down problems, evaluate solutions and make decisions.
• Working on Gold Loan module, single-handedly integrated a new Gold Loan Lender across the project keeping in mind the optimizations.
• Developed a new gold loan scheme(EDI(i) - Equated Daily Installment with Interest only) which gives customer the facility to pay only interest as daily installments.
• Developed the Loan Foreclosure feature which enables user to fore close a loan even before the due date.

• Collaborated with cross-functional development team members to analyze potential system solutions based on evolving client requirements.
• Single-handedly developed a custom dashboard using frontend technologies for uploading an entire course and its relevant data which was earlier done from django admin, thus reduced the upload time of a particular course from 3 hours to just 10 minutes with increased efficiency and optimization. Designed and created the respective Restful APIs for it and integrated them.
• Created the Reminders module for end-users to get reminded about their courses sent on daily basis.
• Estimated work hours and tracked progress using Scrum methodology.
• Developed a module which comprised of entire Question(Quiz, Comprehension, Tests, Vocabulary Practice) set over the period of the particular course duration along with the tracking module for each day.
• Developed a module which enabled users to long press a word to find the entire details about it, eg. meaning(English and Hindi), pronunciation(fast and slow).

• Created, delivered and maintained scalable system(backend) from scratch.
• Extended BaseUserManager to use mobile number as username.
• Developed Banner Management System(BMS) functional upto State, City, Pincode and Shop level.
• Developed OTP module that can be used with any messaging services.
• Developed multi-level ERP system.
• Developed Product Pricing Module functional upto State, City, Pincode and Shop level.
• Developed Couponing and Offers Module functional upto State, City, Pincode and Shop level.
• Developed Last Mile Delivery System.
• Developed versioned Restful APIs with DRF.

Have created many mini projects javascript and have major projects such as the website of the company and have worked on existing websites.