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Hello! I’m Onkar Rajendra Patil, a results-driven software engineer with 15+ years of experience across design, analysis, development, integration and deployment. I’ve built scalable solutions in financial services, retail, telecom and e-commerce domains, embracing modern tech stacks and secure, robust practices. I enjoy collaborating with business analysts and UX designers to deliver value end-to-end while mentoring teammates and continuously improving processes. I thrive on solving complex problems, leading initiatives from concept to production, and delivering systems that are secure by design and scalable. I’m passionate about staying hands-on with code, architecture, and deployment, while keeping a healthy focus on security, performance, and user experience.…Hello! I’m Onkar Rajendra Patil, a results-driven software engineer with 15+ years of experience across design, analysis, development, integration and deployment. I’ve built scalable solutions in financial services, retail, telecom and e-commerce domains, embracing modern tech stacks and secure, robust practices. I enjoy collaborating with business analysts and UX designers to deliver value end-to-end while mentoring teammates and continuously improving processes. I thrive on solving complex problems, leading initiatives from concept to production, and delivering systems that are secure by design and scalable. I’m passionate about staying hands-on with code, architecture, and deployment, while keeping a healthy focus on security, performance, and user experience.

Onkar Rajendra Patil

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

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Hello! I’m Onkar Rajendra Patil, a results-driven software engineer with 15+ years of experience across design, analysis, development, integration and deployment. I’ve built scalable solutions in financial services, retail, telecom and e-commerce domains, embracing modern tech stacks and secure, robust practices. I enjoy collaborating with business analysts and UX designers to deliver value end-to-end while mentoring teammates and continuously improving processes. I thrive on solving complex problems, leading initiatives from concept to production, and delivering systems that are secure by design and scalable. I’m passionate about staying hands-on with code, architecture, and deployment, while keeping a healthy focus on security, performance, and user experience.…Hello! I’m Onkar Rajendra Patil, a results-driven software engineer with 15+ years of experience across design, analysis, development, integration and deployment. I’ve built scalable solutions in financial services, retail, telecom and e-commerce domains, embracing modern tech stacks and secure, robust practices. I enjoy collaborating with business analysts and UX designers to deliver value end-to-end while mentoring teammates and continuously improving processes. I thrive on solving complex problems, leading initiatives from concept to production, and delivering systems that are secure by design and scalable. I’m passionate about staying hands-on with code, architecture, and deployment, while keeping a healthy focus on security, performance, and user experience.

Available to hire

Hello! I’m Onkar Rajendra Patil, a results-driven software engineer with 15+ years of experience across design, analysis, development, integration and deployment. I’ve built scalable solutions in financial services, retail, telecom and e-commerce domains, embracing modern tech stacks and secure, robust practices. I enjoy collaborating with business analysts and UX designers to deliver value end-to-end while mentoring teammates and continuously improving processes.

I thrive on solving complex problems, leading initiatives from concept to production, and delivering systems that are secure by design and scalable. I’m passionate about staying hands-on with code, architecture, and deployment, while keeping a healthy focus on security, performance, and user experience.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Senior Full Stack Developer / Software Engineer at Royal Bank of Canada (RBC) / Brewin Dolphin Wealth Management

October 1, 2025 - Present

Led the Wealth Management Online portal project, creating a new portal app with core banking and investment functionality, including domestic and FX payments, scheduled orders, and an investment dashboard. Architected a unified front-to-back solution deployed as a mobile-first, responsive application, leveraging .NET, Angular, security-by-design, and robust deployment practices.

Contract Developer at UL (Underwriters Laboratories)

February 1, 2022 - July 1, 2025

Designed and implemented an electronic regulatory information portal for UL customers using .NET (Web API) and Angular 17. Implemented rate limiting, OAuth/OIDC authentication, dynamic CORS, and policy-based security. Built microservices with RabbitMQ and Azure services, and integrated with AA/OIDC-based identity.

Contract Developer at OSS Assurance Systems / TalkTalk OSS Projects

May 1, 2013 - May 1, 2015

Contributed to modular OSS Assurance Systems for TalkTalk. Implemented WCF services, ASP.NET MVC workflows, and data access layers; performed unit testing and CI/CD tasks with TFS; developed event-driven architecture with RabbitMQ and microservices for scalable delivery.

Senior .NET Developer at Next Retail Ltd.

July 1, 2015 - February 1, 2018

Led full-stack development for Next’s e-commerce site and payments processing across 72 countries. Integrated with payment providers (RBS WorldPay, PayPal, Klarna, etc.), implemented multi-country catalogs, carts, and checkout flows, and built scalable backend services.

Senior .NET Developer at eForms (Council Forms Platform)

February 1, 2019 - February 1, 2021

Created dynamic council forms toolkit; designed and built a form builder with dynamic form definitions stored in a database and rendered on the front end. Implemented backend APIs, data capture, dynamic rendering, and live deployment support with versioned forms.

Contract Developer at Mortgage Data System (MDS)

November 1, 2007 - February 1, 2009

Mortgage data system for lenders that coordinates borrower data, lender decisioning, and post-approval workflows. Implemented data models, WCF services, SQL Server objects, and event logging. Provided live production support and bug fixes.

Contract Consultant at AVeva Net Gateways

November 1, 2009 - December 1, 2011

Converted CAD/MicroStation data to SVG for web display; built WCF-based API for external access; integrated with CMS like Documentum and SharePoint for data management. Implemented data mapping and messaging to enable collaboration across systems.

Contract Developer at Pyxis (e-Commerce)

February 1, 2009 - April 1, 2009

Implemented e-commerce features, ASP.NET Forms-based authentication, and migration to production. Built business objects and data access layers; created reusable web UI components; deployed to DEV/UAT environments and supported post-deployment.

Contract Developer at TalkTalk OSS (OSS Assurance Systems)

May 1, 2013 - May 1, 2015

Delivered modular OSS components and automation for customer-facing and internal agents; implemented server-side logic and UI components using ASP.NET/.NET Framework; produced unit tests and integrated with source control.