Rajat Kumar
Software Engineer
Bengaluru,RJ
Summary
Detail-oriented, organized, and meticulous employee. Works at fast pace to meet tight deadlines. Enthusiastic team player ready to contribute to company success.
Overview
4
4
years of professional experience
1
1
Certification
Work History
Software Engineer
CapitalOne
07.2023 - Current
- Designed and built an executive-level customer complaints dashboard used by senior leadership, implementing a Lit + TypeScript frontend, Java backend, and BFF architecture to enable data-driven decision-making.
- Engineered an end-to-end data ingestion pipeline leveraging OneLake → Kafka → OpenSearch, processing millions of records daily via scheduled batch jobs with high reliability and fault tolerance.
- Developed scalable REST APIs to query OpenSearch, reducing dashboard data retrieval latency by approximately 40% through optimized indexing and query design.
- Implemented API-level caching and performance optimizations, improving response times, and supporting concurrent access from multiple executive users.
- Contributed to one of Capital One’s first real-time data products, delivering a production-ready data pipeline using the Real-Time Data Pipeline (RTDP) platform, to enable near-real-time analytics.
- Worked on an internal developer platform built on Spotify Backstage, creating event-driven pipelines to update databases in real time on pull request creation, improving engineering workflow automation.
- Designed and implemented automated live dependency and UI template tests using Playwright, including TypeScript-based code generation to auto-create tests from template architecture patterns.
- Led knowledge transfer and best-practice adoption across teams, ensuring high test maturity (TMM Level 4), and improving overall platform reliability and developer productivity.
- Developed scalable and maintainable code, ensuring long-term stability of the software.
- Integrated new technologies into existing systems, increasing capabilities and improving overall performance.
Backend Developer Intern
RingCentral
06.2022 - 11.2022
- Tech stack: Javascript, Nodejs, adaptive cards, SQL Database
- Built a chatbot for 100+ managers to approve/reject expense reports through their chat, saving time by 90%.
- Integrated 5+ third-party APIs to fetch, approve, and reject expense reports, streamlining the approval process.
Backend Developer
Products Lab IIITH,CIE
12.2021 - 06.2022
- Tech stack Linux, Docker, Nodejs, Express js, Ngnix, Mongodb, Gitlab
- Single-handedly built the backend for a product lab projects website, initial 30 users and scalable to 100+.
- Created 15+ API endpoints and integrated GitLab APIs to sync with repo creation, deletion etc.
Education
Bachelor of Technology - Computer Science
IIIT Hyderabad
Hyderabad, Telengana05.2023
Skills
C
Typescript
Bash
Object Oriented Programming
DSA
Probability and Statistics
AWS
Linux
Opensearch
Onelake
GitHub
Playwright
Kafka
System Design
Certification
AWS Certified Solutions Architect - Associate
Leadership Experience
- Lead Akash House in college as House captain
- Lead Alumni Cell in the year 2021 as coordinator
Certifications And Achievements
- AWS Certified Solutions Architect - Associate
- Secured AIR 899 out of 1.4 million candidates in JEEMains-2019 and AIR-1913 in JEE advance 2019
- Secured Rank 879 in Google kick start [Round D - 2021]
- Deans list for perfect score in academics [Monsoon 2020]
Timeline
AWS Certified Solutions Architect - Associate
04-2024
Software Engineer
CapitalOne
07.2023 - Current
Backend Developer Intern
RingCentral
06.2022 - 11.2022
Backend Developer
Products Lab IIITH,CIE
12.2021 - 06.2022
Bachelor of Technology - Computer Science
IIIT Hyderabad