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I am an innovative senior developer with extensive experience designing and delivering high-performance, full-stack and cloud-native solutions. I specialize in C#, .NET Core, Elixir/Phoenix (Functional Programming), and backend development, and I have a proven track record leading architectural transformations—from monoliths to scalable, event-driven microservice ecosystems using CQRS and AWS Serverless (SQS, Lambda). I also build robust CI/CD pipelines and align technical strategy with business goals in global Finance and AdTech environments.…I am an innovative senior developer with extensive experience designing and delivering high-performance, full-stack and cloud-native solutions. I specialize in C#, .NET Core, Elixir/Phoenix (Functional Programming), and backend development, and I have a proven track record leading architectural transformations—from monoliths to scalable, event-driven microservice ecosystems using CQRS and AWS Serverless (SQS, Lambda). I also build robust CI/CD pipelines and align technical strategy with business goals in global Finance and AdTech environments.

Kishan Suryawanshi

Full Stack Developer, Back-End Developer, Web Developer, +2

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I am an innovative senior developer with extensive experience designing and delivering high-performance, full-stack and cloud-native solutions. I specialize in C#, .NET Core, Elixir/Phoenix (Functional Programming), and backend development, and I have a proven track record leading architectural transformations—from monoliths to scalable, event-driven microservice ecosystems using CQRS and AWS Serverless (SQS, Lambda). I also build robust CI/CD pipelines and align technical strategy with business goals in global Finance and AdTech environments.…I am an innovative senior developer with extensive experience designing and delivering high-performance, full-stack and cloud-native solutions. I specialize in C#, .NET Core, Elixir/Phoenix (Functional Programming), and backend development, and I have a proven track record leading architectural transformations—from monoliths to scalable, event-driven microservice ecosystems using CQRS and AWS Serverless (SQS, Lambda). I also build robust CI/CD pipelines and align technical strategy with business goals in global Finance and AdTech environments.

Available to hire

I am an innovative senior developer with extensive experience designing and delivering high-performance, full-stack and cloud-native solutions.

I specialize in C#, .NET Core, Elixir/Phoenix (Functional Programming), and backend development, and I have a proven track record leading architectural transformations—from monoliths to scalable, event-driven microservice ecosystems using CQRS and AWS Serverless (SQS, Lambda). I also build robust CI/CD pipelines and align technical strategy with business goals in global Finance and AdTech environments.

Skills

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Expert

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Work Experience

Lead Developer at DDB Sydney / Omnicom

January 1, 2022 - Present

Project: Global Marketing Production Automation System. Delivered scalable C#/.NET Core microservices powering a global platform, processing millions of requests daily with high reliability. Designed event-driven systems with RabbitMQ and Redis, ensuring fast, resilient, and decoupled communication between services. Applied CQRS, separating commands, queries, and aggregations to enable faster reads and more stable write processing at scale. Optimized database performance using EF Core and SQL, reducing query latency under heavy production load by up to 30%. Built clean, maintainable REST APIs with dependency injection and SOLID principles, simplifying feature expansion and debugging. Implemented automated unit and integration tests with NUnit and SpecsFlow, increasing deployment confidence and reducing production issues. Containerized applications with Docker, streamlining deployments and scaling microservices across environments.

Senior Software Engineer at RAPP (Omnicom) | Mercedes-Benz Financial Services

July 1, 2017 - December 1, 2021

Project: Global Multi-Region Mercedes-Benz Car Rental System (Customer & Dealer Platforms). Developed a multi-tenant, high-availability system deployed across 13 countries. Built the dealer application using .NET Core (Web API) and ReactJS (JSX) with an MVC architecture. Designed TeamCity and Octopus deploy pipelines for cloud-native deployment on Azure App Services and Azure Functions, backed by SQL Server. Integrated secure Single Sign-On using Ping ID. Developed a cross-platform mobile application (Xamarin Forms) supporting vehicle booking, booking history, and push notifications. Integration with payments providers including Razor Pay, Stripe, CashFree, UPI, Mercedes Pay, and bank payment gateways. Delivered Salesforce integration and implemented Apple Wallet functionality for digital passes.

Founder & Developer at Same-Day Pvt. Ltd.

October 1, 2012 - March 1, 2016

Designed & developed a Same-Day delivery application using ASP.NET MVC, jQuery UI, Web API, and SQL Server, enabling 60–90-minute express deliveries. Built a cross-platform mobile application using Xamarin.Forms 3.0 for real-time booking, tracking, and notifications. Implemented RESTful APIs to handle delivery requests, courier assignments, and status updates efficiently. Designed and optimized the SQL Server database to manage users, orders, and delivery workflows.