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Abhirup Kundu

Software Engineer @ Mastercard || E&ECE @ IIT KHARAGPUR’25 || Publications @ ICWSM’26(Google DeepMind) || Expert@Codeforces || Guardian(2151)@Leetcode || 5 ⭐(2029) @Codechef || Ex-Intern@Adobe

Kolkata

1+ year of work experience

Mastercard
Jun 20251 yr 3 mosPresent

Gurugram

Building Golang backend microservices for real-time fraud scoring pipelines processing 750M+ transactions/month across UK payment schemes Designed Transaction Deduplication Microservice using Redis Bloom filters ensuring 100% consistency via time-partitioning and atomic Lua operations Built Match API for transaction lookup via fuzzy matching on account pairs, timestamps and amount tolerances Improved observability across 5+ microservices; built Kibana dashboards reducing mean debug time by ~30%
Adobe
May 20243 mosJul 2024

Bengaluru

Developed Docutree, a hierarchical tree-based document update model preserving coherence across section/paragraph levels Built a three-module pipeline (Selector, Scorer, Validator) using sBERT and cosine similarity for content placement Outperformed GPT-4o zero-shot baseline by 15-19% and LLaMA-3.1-8B by 18-21% on document update tasks
GitHub
@BlackSwan18

Abhirup’s AI Stack

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Education

Indian Institute of Technology, Kharagpur

Bachelor of Technology - BTech, Electrical and Electronics Engineering

Indian Institute of Technology, Kharagpur

20214 yrs2025

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Headline

Software Engineer @ Mastercard || E&ECE @ IIT KHARAGPUR’25 || Publications @ ICWSM’26(Google DeepMind) || Expert@Codeforces || Guardian(2151)@Leetcode || 5 ⭐(2029) @Codechef || Ex-Intern@Adobe

About

I'm a 2025 ECE graduate from IIT Kharagpur, currently working as a Software Engineer at Mastercard on real-time fraud scoring pipelines using Golang-based backend microservices. My research on fake news detection was accepted at AAAI ICWSM 2026, in collaboration with Google DeepMind. On the competitive programming side, I'm a Codeforces Expert, LeetCode Guardian, and CodeChef 5-star with 1000+ problems solved. I've qualified for Meta Hacker Cup Round 2 multiple times. I'm passionate about building scalable systems and solving hard problems — always open to connecting with like-minded engineers and opportunities in top-tier product companies.

Location

Kolkata

AI stack

cursor

opencode

claudecode

Work experience

Software Engineer at Mastercard, Jun 2025 - Present · 1 yr 3 mos, Gurugram, Building Golang backend microservices for real-time fraud scoring pipelines processing 750M+ transactions/month across UK payment schemes Designed Transaction Deduplication Microservice using Redis Bloom filters ensuring 100% consistency via time-partitioning and atomic Lua operations Built Match API for transaction lookup via fuzzy matching on account pairs, timestamps and amount tolerances Improved observability across 5+ microservices; built Kibana dashboards reducing mean debug time by ~30%

Intern at Adobe, May 2024 - Jul 2024 · 3 mos, Bengaluru, Developed Docutree, a hierarchical tree-based document update model preserving coherence across section/paragraph levels Built a three-module pipeline (Selector, Scorer, Validator) using sBERT and cosine similarity for content placement Outperformed GPT-4o zero-shot baseline by 15-19% and LLaMA-3.1-8B by 18-21% on document update tasks

Education

Bachelor of Technology - BTech, Electrical and Electronics Engineering, Indian Institute of Technology, Kharagpur

Public links

github: https://github.com/BlackSwan18

Abhirup Kundu - Software Engineer in Kolkata | Tal