Summary
Overview
Work History
Education
Skills
Personal Details
Projects as a Student
Timeline
Generic
Rajasekar K

Rajasekar K

Software Developer | 3 years

Summary

Strong in design and integration with intuitive problem

solving skills. Ability to translate business requirements into technical solutions. Looking to start my career as a Back-end Developer in a reputed firm driven by technology.

Overview

7
7
years of professional experience

Work History

SDE 1

Greytip Software Private
11.2022 - Current

Software Developer – Payroll Systems


Major Features Developed


  • Designed and implemented a new in-memory payroll processing system, improving overall payroll run-time efficiency by 40–50%.
  • Optimized payroll data handling by limiting database interaction to input loading and output persistence, increasing system throughput.
  • Built event-driven job orchestration and tracking, enabling real-time payroll process visibility in the UI.
  • Integrated Kafka (data streaming), Redis (job state management), and Amazon S3 (scalable storage) to support efficient and fault-tolerant payroll processing.
  • Applied serialization/deserialization techniques (Protobuf) for fast and efficient in-memory data transfer.


Day-to-Day Work


  • Owned and delivered payroll modules including Bank Transfer, Journal Voucher (JV) Creation, and Claims, ensuring accuracy and compliance.
  • Developed and maintained RESTful APIs to support payroll workflows and system integrations.
  • Created and optimized BIRT reports using PostgreSQL, improving reporting speed and accuracy.
  • Optimized SQL queries to enhance payroll system performance and reduce report generation time.
  • Handled daily support by closing an average of 7–8 Jira tickets while contributing to feature development.


Impact:


  • Improved scalability to process 100k+ employee datasets efficiently.
  • Increased payroll transparency and accuracy with real-time reporting and monitoring.
  • Reduced manual effort and error rates through automation and query.

Instructional Associate

Masai School
04.2022 - 11.2022
  • Guided 100s of students in building full-stack projects using Java, Spring Boot and MySQL.
  • Conducted daily stand-ups and pair programming sessions focused on Core Java and Data Structures & Algorithms for effective doubt resolution.
  • Collaborated with the curriculum team to enhance content quality and improve overall program efficiency.

Information Processing Specialist (Nielsen IQ)

TCS
04.2019 - 04.2021

Expertise in Market Research Industry, E-Commerce –

Associated with The Nielsen IQ(US) Great exposure in North American Retail Industry and Fast Moving Consumer goods

Education

JAVA Backend Developer Course

Masai School
Bengaluru, India
04-2022

Bsc Mathematics With Computer Application

DG Vaishnav College
Chennai
03-2018

Skills

    Programming Languages: Java

    Frameworks: Spring Boot, Spring Security, JPA(Hibernate), REST APIs, JDBC

    Agile Methodologies: Scrum, Sprint Planning, Jira

    Databases: MySQL, Postgres SQL, Redis

    Message Queues: Apache Kafka

    Tools: Docker, Maven

Personal Details

Contact:

rajasekark0@gmail.com

+91 6369226967

Bangalore, Karnataka

LinkedIn 

GitHub 

Projects as a Student

Email Application [GitHub]


Worked on creating REST API and writing business logic for a GMail application. 


Online Payment App [GitHub]


Online Wallet Payment Application where you can send and receive money and pay different bills. 




Timeline

SDE 1

Greytip Software Private
11.2022 - Current

Instructional Associate

Masai School
04.2022 - 11.2022

Information Processing Specialist (Nielsen IQ)

TCS
04.2019 - 04.2021

JAVA Backend Developer Course

Masai School

Bsc Mathematics With Computer Application

DG Vaishnav College
Rajasekar K