I am a software engineer focused on building digital payment platforms, financial systems, and distributed backend architectures.

Currently working at McLaren Strategic Solutions, where I have been involved in building and evolving a compliance-focused financial platform from the ground up. My work spans digital payments, transaction processing, payment integrations, backend architecture, distributed systems, cloud infrastructure, and engineering standards.

I work across the full lifecycle of a platform, from architecture and technical design to implementation, deployment, observability, and operational reliability.

My experience includes building payment flows across multiple rails, integrating payment service providers, designing event-driven transaction processing, developing wallet and financial capabilities, and establishing engineering standards across a large microservice ecosystem.

Most of my professional work is in private enterprise repositories. This profile highlights my engineering interests, public work, and selected technical explorations.

My primary engineering focus includes building systems around the complete digital payment lifecycle.

Payment Processing

• Payment initiation and transaction processing
• Authorization and transaction lifecycle management
• Payment status and state management
• Webhooks and asynchronous payment events
• Idempotency and reliable transaction processing
• Payment failure and retry handling

Payment Rails & Integrations

• ACH / NACHA
• ISO 8583
• Card payment infrastructure
• Stripe
• PayPal
• Checkout
• Rapyd
• Authorize.net

Financial Infrastructure

• Digital wallets
• Business payments
• Transaction ledgers
• Payment orchestration
• Compliance-driven transaction processing
• KYC / KYB / AML integrations
• High-volume payment event processing

Languages & Backend

Payments & Distributed Systems

Cloud & Infrastructure

AI & Engineering Tooling

• Digital payment platform: Contributed to building a compliance-focused financial platform supporting digital payments and high-volume transaction processing.

• Multi-rail payment infrastructure: Worked across ACH/NACHA, ISO 8583, card payments and multiple payment service providers.

• Payment integrations: Designed and implemented integrations with Stripe, PayPal, Checkout, Rapyd, Authorize.net and other financial infrastructure providers.

• Digital wallets: Worked on wallet and account-based financial capabilities supporting business payment workflows.

• Distributed transaction processing: Built event-driven transaction flows using Kafka, Redis and asynchronous processing patterns.

• Payment webhooks: Designed reliable webhook processing and event-driven integration flows for payment lifecycle events.

• Microservice architecture: Contributed to a large ecosystem of backend services covering payments, compliance, identity, wallets, webhooks and platform capabilities.

• Compliance infrastructure: Worked across KYC, KYB and AML integrations with external compliance providers.

• Cloud-native infrastructure: Built and operated services using Azure, AKS, Docker, Kubernetes and Terraform.

• Architecture governance: Contributed to architecture decisions, ADRs, engineering policies, development standards and technical reviews.

• Developer tooling: Worked on internal packages, CLI/SDK concepts, configuration standards and engineering automation.

I believe good architecture is about building systems that are reliable, scalable, secure and easy to evolve.

My approach focuses on:

• Clear service boundaries and ownership
• Reliable transaction processing
• Strong API and contract design
• Idempotency and failure handling
• Event-driven architecture where it provides real value
• Observability and operational readiness
• Security and compliance by design
• Automation over repetitive manual processes
• Architecture decisions driven by measurable requirements

• Building and evolving digital payment and financial platforms
• Working on distributed transaction processing and payment infrastructure
• Exploring payment orchestration and digital wallet capabilities
• Contributing to architecture standards and technical governance
• Exploring AI-assisted software engineering and agentic workflows
• Deepening expertise in Go, distributed systems and cloud architecture
• Growing toward Senior Lead Engineer / Technical Lead / Platform Architect responsibilities

A significant portion of my engineering work is in private enterprise repositories, so the public contribution graph represents only a part of my overall engineering activity.

• Website: sheetalkumar.in
• GitHub: github.com/ksheetal
• LinkedIn: Sheetal Kumar

_{Build · Scale · Simplify}