Arjun Aggarwal

Backend Engineer

Bengaluru, Karnataka, India3 yrs 5 mos experience

Most Likely To Switch

Key Highlights

Expert in building scalable fintech systems.
Led architectural redesigns for high-traffic migrations.
Strong background in competitive programming.

Stackforce AI infers this person is a Backend-focused Software Engineer in the Fintech industry with expertise in microservices and payment systems.

Contact

Skills

Core Skills

MicroservicesPayment SystemsArchitectural DesignThird-party IntegrationsSystem StabilitySupply Chain ManagementFlutter

Other Skills

Event OrchestrationDefensive CodingAPI DevelopmentScalable ArchitectureImpact ManagementRepresentational State Transfer (REST)Programming LanguagesSpring BootNetwork HandlingData SynchronizationDashboard DevelopmentProcurement OptimizationEarly Warning SystemsIntelligent Call RoutingMonitoring Performance

About

Software Engineer specializing in distributed systems, microservices architecture, and event-driven communication. My foundation in problem-solving comes from an extensive background in competitive programming (Codeforces Expert, CodeChef 6-star) and my time at IIT (BHU) Varanasi. In the fintech space, I focus on building scalable, highly available systems. My recent work includes leading end-to-end architectural redesigns for high-traffic migrations and building core financial services from the ground up. I primarily code in Java and leverage technologies like Kafka to ensure system consistency and performance. I am passionate about tackling complex backend challenges and driving technical excellence.

Experience

3 yrs 5 mos

Total Experience

1 yr 1 mo

Average Tenure

1 yr 3 mos

Current Experience

Cred

Back End Developer

Mar 2025 – Present · 1 yr 3 mos · Bengaluru, Karnataka, India

Payment Systems Architecture & IRCTC Migration: Led end-to-end architectural redesign for IRCTC migration to Checkout V2, rebuilding payment flows across Darwin (Payment-service/LCM), Pricing, DPSPL Fee Engine, and Settlement services. Eliminated legacy Plutus and Charles dependencies while engineering critical DPSPL fee logic with defensive coding practices to prevent system-wide payment failures.
Third-Party Payment Integrations: Delivered TPV (Third Party Validation) integrations for Razorpay and Billdesk, unblocking customer onboarding for Kuvera app launch. Designed and implemented direct Billdesk integration, replacing Juspay-mediated solution to reduce costs, improve success rates, and establish redundant TPV failover for Wealth/Kuvera platform.
Microservices Development & Event Orchestration: Built FinHQ Bookkeeping V2 service from ground up, translating complex product requirements into scalable architecture (deployed to Stage). Currently developing LEO (Loading-Events-Orchestrator) to resolve event loss issues in legacy in-memory event bus while consolidating three separate services (Payments-settlement-client, Darwin-accounting-client, Transaction-orchestrator).
Cross-Service Impact Management: Managed ripple effects across multiple interconnected payment services during major architectural shifts, ensuring system stability across Pricing, Settlement, and Fee Engine components to maintain uninterrupted payment processing.

Payment SystemsMicroservicesEvent OrchestrationThird-Party IntegrationsArchitectural Design

Sprinklr

Product Engineer

Jul 2023 – Mar 2025 · 1 yr 8 mos · Gurugram, Haryana, India

Representational State Transfer (REST)Programming Languages

Captain fresh

Software Engineer Intern

Jan 2022 – Jul 2022 · 6 mos

Improved app reliability by implementing robust network error handling, offline data persistence, and efficient synchronization in a Flutter-based application, ensuring a seamless user experience even in low-connectivity scenarios and and efficient data synchronization when connectivity is restored.
Supply Chain Traceability: Created a Spring Boot system generating 10,000+ unique serials/day for food packets, cutting manual tracking errors by 70%.
Inventory and Order Management: Worked on real-time dashboards to track stock levels, automate reorder alerts, and optimize procurement cycles, improving supply chain efficiency.

FlutterSpring BootSupply Chain Management