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Arun Bajpai

Backend Engineer @ Aspora | Go, Java/Spring Boot, Kafka, Distributed Systems | Cross-border Fintech

Bengaluru

2+ years of work experience

Aspora (formerly Vance) | Sequoia, Greylock, Y Combinator – backed
Nov 20259 moPresent

Bengaluru, Karnataka, India

– Backend engineer at a remittance fintech processing $2B+ annual volume for 800K+ NRIs; authored 7+ design docs reviewed by senior leads, shipped on 2 product launches, mentored interns, and collaborated cross-functionally across Go and Java/Spring Boot. – Solo-built backend for the Activation Stepper – a 3-step home-screen onboarding widget driving users from KYC to first transfer; delivered +4pp Order Completion lift (+10.4pp on iOS, +15.4pp on referred users) across UAE/UK/EU/US within first week of launch. – Shipped backend for the NRE/NRO Bank Account launch – NRIs open an Indian bank account in <10 min (vs. industry-standard 1–2 weeks); built the KYC document-normalization pipeline (image → notary-compliant PDF), remote online notarization flow, and biometric/MPIN auth setup; onboarded 100s of users in month one. – Solo-built a Go user-segmentation service from scratch powering platform-wide cohort routing at p99 <15ms and p50 <2ms with zero errors over 3.7M+ requests; authored the system design doc and shipped end-to-end with a hot-reload rule engine, unlocking a new product launch. – Architected a Debezium → Kafka CDC pipeline from inception, replacing legacy polling-based aggregation and cutting user-attribute propagation latency from minutes to <10s across 1M+ daily events. – Proposed and led PII field-level scoping rollout on a Spring Boot CRM serving sensitive customer data – plan-based masking, full audit logging on data access, and outbound-call masking; passed internal security audit across admin surfaces. – On-call across backend services; root-caused and patched a cross-environment config drift bug breaking the free-transfer reward flow and resolved an MSK consumer-lag outage, restoring a key acquisition feature mid-hotfix.
ALLEN Digital
Jun 20241 yr 6 mosNov 2025

Bengaluru, Karnataka, India

• Developed and maintained high-throughput Golang microservices, managing ~50K requests/hour to enhance backend services. • Architected Kafka pipelines that process over 1 million events daily, ensuring robust data handling. • Implemented a secure content authorization system, significantly improving data security and compliance. • Reduced AWS S3 storage costs by 30% through effective lifecycle optimizations and payload compression.
Deloitte
Jul 20234 mosOct 2023

Gurugram, Haryana, India

• Developed Python ETL scripts to automate risk report generation, reducing manual effort by 60%. • Optimized PostgreSQL schemas and SQL queries, enhancing report execution speed by 25%. • Configured GitHub Actions for pipeline validation, minimizing data-validation errors by 90%. • Contributed to Deloitte's commitment to innovation and efficiency in risk management solutions.
GitHub
@arunbajpai35

Arun’s AI Stack

claude code
claude code
claude
claude
claudecode
claudecode
ChatGPT
ChatGPT
Devin
Devin
LM Studio
LM Studio

Education

Vellore Institute of Technology

Bachelor of Technology, Computer Engineering

Vellore Institute of Technology

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Headline

Backend Engineer @ Aspora | Go, Java/Spring Boot, Kafka, Distributed Systems | Cross-border Fintech

About

Backend engineer building the systems behind cross-border money movement. At Aspora (Sequoia / Greylock / YC-backed), I work on the infrastructure moving $2B+ in annual remittance volume for 800K+ NRIs — primarily in Go and Java/Spring Boot. I'm drawn to the hard parts of backend — low-latency services, async workflows, and distributed systems. A few things I've built: • A Go user-segmentation service powering platform-wide cohort routing at p99 <15ms across 3.7M+ requests, zero errors. • A Debezium → Kafka CDC pipeline that cut attribute-propagation latency from minutes to <10s across 1M+ daily events. • Outside work: an LLM-powered log-triage service that correlates Kafka logs by trace ID and proposes root-cause hypotheses, and a Go ad-targeting engine running at 8.4K RPS, p99 35ms. Day to day I live in Go, Kafka, PostgreSQL, Redis, Temporal, and Docker — and I'm increasingly interested in AI-driven tooling for debugging and automating backend systems.

Location

Bengaluru

AI stack

claude code

claude

claudecode

ChatGPT

Devin

LM Studio

Work experience

Software Engineer - Backend at Aspora (formerly Vance) | Sequoia, Greylock, Y Combinator – backed, Nov 2025 - Present · 9 mo, Bengaluru, Karnataka, India, – Backend engineer at a remittance fintech processing $2B+ annual volume for 800K+ NRIs; authored 7+ design docs reviewed by senior leads, shipped on 2 product launches, mentored interns, and collaborated cross-functionally across Go and Java/Spring Boot. – Solo-built backend for the Activation Stepper – a 3-step home-screen onboarding widget driving users from KYC to first transfer; delivered +4pp Order Completion lift (+10.4pp on iOS, +15.4pp on referred users) across UAE/UK/EU/US within first week of launch. – Shipped backend for the NRE/NRO Bank Account launch – NRIs open an Indian bank account in <10 min (vs. industry-standard 1–2 weeks); built the KYC document-normalization pipeline (image → notary-compliant PDF), remote online notarization flow, and biometric/MPIN auth setup; onboarded 100s of users in month one. – Solo-built a Go user-segmentation service from scratch powering platform-wide cohort routing at p99 <15ms and p50 <2ms with zero errors over 3.7M+ requests; authored the system design doc and shipped end-to-end with a hot-reload rule engine, unlocking a new product launch. – Architected a Debezium → Kafka CDC pipeline from inception, replacing legacy polling-based aggregation and cutting user-attribute propagation latency from minutes to <10s across 1M+ daily events. – Proposed and led PII field-level scoping rollout on a Spring Boot CRM serving sensitive customer data – plan-based masking, full audit logging on data access, and outbound-call masking; passed internal security audit across admin surfaces. – On-call across backend services; root-caused and patched a cross-environment config drift bug breaking the free-transfer reward flow and resolved an MSK consumer-lag outage, restoring a key acquisition feature mid-hotfix.

SDE- 1 at ALLEN Digital, Jun 2024 - Nov 2025 · 1 yr 6 mos, Bengaluru, Karnataka, India, • Developed and maintained high-throughput Golang microservices, managing ~50K requests/hour to enhance backend services. • Architected Kafka pipelines that process over 1 million events daily, ensuring robust data handling. • Implemented a secure content authorization system, significantly improving data security and compliance. • Reduced AWS S3 storage costs by 30% through effective lifecycle optimizations and payload compression.

Intern at Deloitte, Jul 2023 - Oct 2023 · 4 mos, Gurugram, Haryana, India, • Developed Python ETL scripts to automate risk report generation, reducing manual effort by 60%. • Optimized PostgreSQL schemas and SQL queries, enhancing report execution speed by 25%. • Configured GitHub Actions for pipeline validation, minimizing data-validation errors by 90%. • Contributed to Deloitte's commitment to innovation and efficiency in risk management solutions.

Education

Bachelor of Technology, Computer Engineering, Vellore Institute of Technology

Public links

github: https://github.com/arunbajpai35