Rajiv Kumar

Software Engineer

Gurugram, Haryana, India5 yrs 5 mos experience
Most Likely To Switch

Key Highlights

  • Expert in backend development and microservices architecture.
  • Proven track record in enhancing customer satisfaction.
  • Strong problem-solving skills with a focus on efficiency.
Stackforce AI infers this person is a Backend-focused Software Engineer in E-commerce and Domain Registration sectors.

Contact

Skills

Core Skills

MicroservicesRest ApisApi DevelopmentDatabase Management

Other Skills

AWSActiveMQAmazon S3Amazon Web Services (AWS)Analytical SkillsApache KafkaBootstrapCascading Style Sheets (CSS)Clean CodingCore JavaCron SchedulingDatabase AutomationDesign ReviewElastic Stack (ELK)Express.js

About

As a results-driven Software Engineer specializing in backend development, I bring expertise in designing and delivering scalable, high-performance systems that enhance customer experience and operational efficiency. With hands-on experience in microservices architecture, API development, and database optimization, I am passionate about building robust solutions that solve real business challenges. Currently, I am part of Lenskart's Customer Experience Service team, where I focus on post-purchase operations to elevate customer satisfaction. My work involves architecting and implementing backend services that streamline processes, improve response times, and support large-scale user operations. Previously, as a Backend Engineer at Newfold Digital, I successfully integrated multiple top-level domains (TLDs) into a microservices ecosystem and automated critical database processes, resulting in significant efficiency gains and reduced manual effort. I hold a Master’s in Computer Science and Engineering from Delhi Technological University and a Bachelor’s in Computer Science from JSS Academy of Technical Education, Noida. Technical Expertise: Languages & Frameworks: Java | Spring Boot | Hibernate Databases & Caching: PostgreSQL | MySQL | Redis Tools & Platforms: Docker | Jenkins | Git | Maven Architecture & Design: Microservices | REST APIs | OOP | Design Patterns | LLD | HLD Testing & Quality: JUnit | Mockito | Unit & Integration Testing Core Skills: Data Structures | Algorithms | Agile Methodologies Beyond my technical skill set, I value collaboration, problem-solving, and continuous learning. I am motivated by challenges that demand innovation, scalability, and attention to detail, and I thrive in environments where technology directly impacts customer satisfaction. I’m always open to connecting with professionals and exploring opportunities where I can contribute my expertise to create meaningful impact.

Experience

Lenskart.com

Software Engineer

Mar 2024Present · 2 yrs · Gurugram, Haryana, India · On-site

  • Designed and implemented an event-driven Returns Service
  • using Java, Spring Boot, and Kafka, reducing system failures
  • by introducing a retry mechanism and event logging, which im-
  • proved failure tracking and reduced resolution time by 30%.
  • Built a secure Gift Voucher Ledger for over 2,000 stores across
  • India, implementing database locking to prevent concurrency
  • issues and custom API authentication.
  • Enhanced doorstep Quality Control (QC) with XPRESSBEES
  • Courier by adding serial number verification, cutting fraudulent returns by 40% and improving return processing accuracy.
  • Created scheduled jobs to write data into MongoDB and built
  • APIs to read and display data on internal dashboards, enabling
  • better decision-making for customer returns.
  • Automated survey outreach for non-buyers via WhatsApp and
  • SMS using Amazon S3 and Cron scheduling, increasing cus
  • tomer feedback collection by 35%.
  • Collaborated with product managers and cross-functional
  • teams to gather requirements, ensuring timely delivery of
  • high-impact features.
  • Led Root Cause Analysis (RCA) for multiple critical issues in
  • the returns process, improving business metrics and minimizing return-related losses.
  • Served on-call for production support, quickly resolving inci-
  • dents to reduce downtime and prevent financial impact
JavaSpring BootKafkaMongoDBAPI DevelopmentDatabase Management+2

Newfold digital

2 roles

Back End Developer

Promoted

Jun 2022Mar 2024 · 1 yr 9 mos

  • 1. Integrated over 10 TLDs into Registrar Platform, expanding total domains to 7 million.
  • 2. Orchestrated the transition of 10+ registrars' TLDs to microservices architecture with minimal downtime.
  • 3. Incorporated multiple REST APIs with various microservices using the Open API SDK generator.
  • 4. Automated manual database entry processes, resulting in a significant 25% reduction in developer involvement.
  • 5. Managed and operated large-scale, distributed microservices on AWS.
  • 6. Demonstrated problem-solving skills by efficiently resolving production issues as part of on-call responsibilities, maintaining system reliability and uptime.
MicroservicesREST APIsAWSDatabase AutomationAPI Development

Software Engineer

Jan 2022May 2022 · 4 mos

  • 1. Developed RateLimiting plugin for API Gateway in Golang, boosting throughput by 20%.
  • 2. Transitioned from counter-based to sliding window model, utilizing Redis sorted-set for algorithm efficiency.
  • 3. Optimized system performance, achieving a 20% improvement, reducing response time by 40%.
  • 4. Seamlessly managed bursty traffic with the revamped algorithm.
GolangRedisAPI Development

Delhi technological university (formerly dce)

Teaching Assistant

Sep 2020May 2022 · 1 yr 8 mos · Delhi, India

Education

Delhi College of Engineering

Master's degree — Computer Science

May 2020May 2022

Delhi Technological University (Formerly DCE)

Master of Technology - M.Tech — Computer Science

Jan 2020Jan 2022

JSS ACADEMY OF TECHNICAL EDUCATION, NOIDA

Bachelor of Technology(Hons.) — Computer Science

Jan 2016Jan 2020

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