Backend Software Engineer .NET Core - Distributed Systems Enthusiast

MEET KERASIYA

+91-926**-***** **************@*****.*** linkedin.com/in/meet-kerasiya github.com/meetkerasiya PROFILE SUMMARY

Backend-focused Software Engineer with 3 years of experience in .NET Core and Distributed Systems. Specializes in Event-Driven Architecture (MassTransit), High-Reliability Payment Systems, and Cloud Cost Optimization. Proven track record of solving complex I/O bottlenecks in Kubernetes environments and designing secure, cryptographic authentication flows on AWS.

TECHNICAL SKILLS

Languages & Frameworks: C#, .NET Core, ASP.NET Web API, FastEndpoints, Entity Framework, Next.js 14, TypeScript Architecture & Patterns: Microservices, MassTransit Sagas, Event-Driven Design, Circuit Breaker, Chain of Responsibility Infrastructure & Cloud: AWS (S3, KMS), Kubernetes (PVC), Docker, RabbitMQ, Redis, Snowplow Analytics Testing & Tools: xUnit, Data-Driven Testing, Postman, CI/CD Pipelines EXPERIENCE

Maruti Techlabs Jan 2023 – Present

Software Engineer Ahmedabad, India

• Migrated a legacy payment processing system to an event driven architecture using MassTransit Sagas, orchestrating complex workflows (Wire, E-Check, Positive Pay) with automated rollback and DLQ recovery, eliminating 15+ monthly reconciliation incidents.

• Engineered a cost-efficient image extraction pipeline for 30,000+ daily checks, replacing repetitive S3 GET requests with Kubernetes Persistent Volume Claims (PVC) to process multi-page TIFFs locally. Reduced AWS data transfer costs by approx. 60%.

• Built a high-performance orchestration service executing chained API workflows followed by 15 parallel downstream calls, achieving a 600 ms SLA through Redis caching and Circuit Breaker based fault tolerance.

• Resolved concurrency bottlenecks with a third-party bookkeeping system (Intacct, limited to max 2 parallel requests) by implementing a Distributed Lock mechanism via Redis. This serialized async operations, preventing rate-limit failures and eliminating manual reconciliation.

• Scaled the notification infrastructure to handle 1M events/day (Twilio/SendGrid). Implemented a robust retry strategy using Polly (transient) and RabbitMQ (long-running) to handle webhook failures, ensuring 99.9% delivery reliability.

• Developed a ”Zero-Login” action system using AWS KMS Asymmetric Encryption, allowing users to securely perform actions via email links. Increased user action conversion by 50% by removing authentication friction.

• Overcame Next.js Edge Runtime I/O limitations (file system access) for authentication middleware by decoupling the token verification flow into a dedicated internal validation API, preserving edge performance. PROJECTS

Fintech Payment Orchestration Engine .NET Core, MassTransit, SQL Server

• Designed an event driven reconciliation workflow using the Chain of Responsibility pattern to sequentially validate financial records across internal databases and third party systems, identifying failed, missing, or unsynchronized transactions.

• Generated pre-correction reconciliation reports by aggregating discrepancies across payment and document records, enabling automated recovery workflows.

Secure Action Portal (Frontend & Analytics) Next.js 14, TypeScript, Snowplow

• Built a secure client-facing portal using Next.js 14 and TypeScript. Integrated Snowplow analytics to track granular user interactions across the ”Zero-Login” workflow for long-term behavioral analysis.

• Implemented custom observability pipelines to monitor signature verification success rates in real-time. Enterprise Communication Service .NET Core, Chain of Responsibility, Redis

• Designed a modular notification engine using the Chain of Responsibility pattern to decouple SMS/Email providers from business logic.

• Implemented an idempotent webhook handler using Redis atomic counters to accurately track retry attempts from providers that lack distinct retry-count headers.

EDUCATION

Birla Vishwakarma Mahavidyalaya (BVM) Anand, Gujarat Bachelor of Technology in Computer Engineering May 2023

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