Sumit Kumar profile photo 1 on Tal

Sumit Kumar

SDE-3 & UPI Team Lead @ Zype Ex-slice | Backend & Distributed Systems | Java · Spring Boot · Kafka · Payments | Open to Remote

Bengaluru

5+ years of work experience

Zype
Mar 20251 yr 7 mosPresent

• Lead the UPI engineering team, owning development of multiple UPI modules including Mandates, UDIR, and customer-support flows; re-architected core components to improve transaction reliability and throughput, working directly with NPCI and security teams on regulatory reporting and compliance. • Architected and delivered an in-house document-signing service end-to-end — leading backend execution and cross-team integrations and ensuring production stability through monitoring and continuous performance improvements. • Owned planning and execution of a large-scale, multi-terabyte database and service migration (including a data-aggregator service) — defining timelines, planning risk mitigation, and resolving complex design challenges across multiple stakeholder teams with no disruption to production. • Delivered a complex end-to-end Interest Benefit feature — running POCs, aligning Product, Engineering, and Data teams, and owning the future enhancement roadmap. • Sustained a high engineering quality bar — keeping code-review findings, defect rates, and critical production bugs well within defined thresholds — while mentoring engineers and providing continuous technical and architectural guidance.
slice
Sep 20247 mosMar 2025

Bengaluru, Karnataka, India

slice
Jun 20213 yrs 3 mosAug 2024

Bangalore Urban, Karnataka, India

Sumit’s AI Stack

anthropic apis
anthropic apis
claude code
claude code
claude
claude
cursor
cursor
deepseek
deepseek
openai
openai

Education

Jadavpur University

Bachelor of Engineering - BE, Information Technology

Jadavpur University

20174 yrs2021
Jawahar Navodaya Vidyalaya - JNV

12th

Jawahar Navodaya Vidyalaya - JNV

20132 yrs2015

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Headline

SDE-3 & UPI Team Lead @ Zype Ex-slice | Backend & Distributed Systems | Java · Spring Boot · Kafka · Payments | Open to Remote

About

I'm a backend engineer and team lead with 5+ years building high-throughput, regulatory-compliant systems in fintech. Today I lead the UPI team at Zype (SDE-3), owning modules like Mandates and UDIR and coordinating with NPCI on payment reliability and compliance. Before Zype, I spent ~4 years at Slice on core money-movement systems — cutting the repayment flow from ~5s to under 1s (~5x throughput), driving P0 API latency below 50ms, and leading our workflow-orchestration migration to Netflix Conductor. My toolkit: Java/Spring Boot and Node.js/NestJS, event-driven and domain-driven design, Kafka, PostgreSQL, and AWS — with a strong bias toward observability, clean architecture, and mentoring the engineers around me. I'm open to fully remote/on-site/hybrid senior/lead backend roles. If you're building payments, fintech infrastructure, or distributed systems — let's talk.

Location

Bengaluru

AI stack

anthropic apis

claude code

claude

cursor

deepseek

openai

Work experience

SDE3 at Zype, Mar 2025 - Present · 1 yr 7 mos, • Lead the UPI engineering team, owning development of multiple UPI modules including Mandates, UDIR, and customer-support flows; re-architected core components to improve transaction reliability and throughput, working directly with NPCI and security teams on regulatory reporting and compliance. • Architected and delivered an in-house document-signing service end-to-end — leading backend execution and cross-team integrations and ensuring production stability through monitoring and continuous performance improvements. • Owned planning and execution of a large-scale, multi-terabyte database and service migration (including a data-aggregator service) — defining timelines, planning risk mitigation, and resolving complex design challenges across multiple stakeholder teams with no disruption to production. • Delivered a complex end-to-end Interest Benefit feature — running POCs, aligning Product, Engineering, and Data teams, and owning the future enhancement roadmap. • Sustained a high engineering quality bar — keeping code-review findings, defect rates, and critical production bugs well within defined thresholds — while mentoring engineers and providing continuous technical and architectural guidance.

SDE-2 at slice, Sep 2024 - Mar 2025 · 7 mos, Bengaluru, Karnataka, India

SDE-1 at slice, Jun 2021 - Aug 2024 · 3 yrs 3 mos, Bangalore Urban, Karnataka, India

Education

Bachelor of Engineering - BE, Information Technology, Jadavpur University

12th, Jawahar Navodaya Vidyalaya - JNV