C# Node Js

Mark Daniel Delgado

Edgewood, Washington, United States ***************@*****.*** +1-425-***-**** in/mark-delgado-698a94332 SUMMARY

As a senior full-stack engineer with a decade of experience and a bachelor's degree in computer science, I have been working on various projects, in a number of industries, ranging from startups to enterprise companies. I have developed products used worldwide and helped startups and internal corporate systems using a variety of tech stacks. I specialize in high-value modern React/Angular/Vue consulting as well as serverless architectures. I am confident in several back-end languages and frameworks, including Node.js, C#, Java, PHP, Go, Python, and GraphQL to deliver robust, performant API back ends and the clients and applications they serve. I enjoy working on multiple aspects of products while always keeping the big picture in mind. I never get tired of applying my curiosity, open mindset, and passion for technology to new challenging projects. Thanks to my proactive attitude, effective communication, and flexibility, I can adapt to any team conditions in a short amount of time. EXPERIENCE

Senior Full Stack Engineer

Microsoft Jun 2022 – Dec 2024

• Accomplished the design of an AI-first creation experience in Office (OPG) as a full-stack developer on the CreateGen AI team. Worked on building globally distributed .NET/Blazor applications running on Kubernetes backend and deployed the full stack application with React.js, and Next.js on the frontend.

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Designed and maintained a robust C#/.NET 14 Web API, as measured by its seamless integration with Google routes and Geocoding APIs, resulting in more accurate and efficient route calculations through real-time data processing.

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Evaluated new AI models and LLMs on Hugging Face for object detection and quality evaluation of AI artifacts, as measured by the effective utilization of different Node.js/Python/C#/Go languages.

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• Developed Go microservices for handling machine learning model inference and data preprocessing pipelines within the Create team. Improved system throughput by 35%, as measured by the implementation of Redis cache and multithreading, and efficiently handled webhooks using Amazon Simple Queue Service (SQS), significantly enhancing overall system performance.

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Utilized OpenAI for image processing and address parsing, as measured by a 25% improvement in data accuracy and operational efficiency, contributing to better service delivery and customer satisfaction.

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Architected a new notification subscription framework using gRPC, as measured by a 35% decrease in average subscription latency and allowance billing inaccuracies under 0.5% using Kafka.

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• Mentored junior engineers and led code review sessions to ensure code quality and promote learning across the engineering team.. Technologies: C#, ASP.NET, .NET Core, Blazor, Javascript, Typescript, React.js, Next.js, Node.js, Go, GraphQL, Azure, AWS SQS, Redis Cache, CMS, TensorFlow, Python, MySQL, Docker, Kubernetes, Microservice, gRPC, CI/CD, Gen AI

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Senior Full Stack Engineer

World Wide Technology Oct 2020 – Jun 2022

Accomplished participation in worldwide engineering development teams, working in mixed technical stacks spanning AWS, Google Cloud, and Azure with implementations in C# .NET, Java, Python, React.js/Node.js/TypeScript.

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Built a credit monitoring API for B2B consumers, as measured by the ability to detect if a consumer's identity is for sale on the dark web, utilizing C#, a web API, AWS, Amazon MQ, Fargate Elastic Container Service, and Docker containers.

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Developed a globally installable, infinitely scalable point-of-sale API product, as measured by its usage by many Fortune 500 companies to serve customers across the globe, by leveraging C#, .NET Core, Azure DevOps pipelines, Kubernetes, Docker, and Helm.

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Created and maintained multiple applications for one of the largest international online dating companies with millions of users, as measured by the successful implementation using C# with .NET 6, Entity Framework, a web API, Node.js, React.

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Modeled a dashboard for tracking corporate action events for a multibillion-dollar hedge fund, as measured by the effective utilization of C#, a web API, and React, and provided presentations to other developers on common usage and patterns in React.

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• Developed SDKs in 10+ languages (C#, TypeScript, Node.js, Python, Java, etc) for enterprise CRM workforce management products. Technologies: C#, .NET, .NET Core, JavaScript, TypeScript, Python, React.js, Node.js, Angular, GraphQL, Blazor, SDK, AWS, Azure, GCP, Kubernetes, Docker, Kafka, NX, Helm, Terraform, Tensorflow, Jest, Cypress, Playwright, Jenkins, Sentry, Datadog, NUnit.

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Senior Full Stack Engineer

Amplify Mar 2018 – Oct 2020

Contributed for Amplify’s core wealth management platform using .NET/C#, and React.js/Next.js/Typescript including portfolio trading, modeling, rebalancing, and allocation modules.

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Architect scalable microservices using .NET Core API and Vue SPA applications for trade execution, compliance, and digital workflows deployed to AWS via Kubernetes.

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Designed and implemented microservices using Node.js, Swagger.io, Apache Thrift, and Docker, significantly enhancing system reliability and ensuring consistency across internal APIs.

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Developed custom email-tracking software, improving targeted email marketing and outreach efforts, leading to increased engagement and conversion rates.

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Created and maintained RESTful APIs in Go to power a robust data visualization and management platform, streamlining data handling and improving the overall user experience using Vue.js, and D3.js.

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Support mission-critical systems through 7 AM -7 PM on-call rotation managing Azure Infrastructure as Code deployments, monitoring, and resolving incidents.

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• Collaborated daily within Agile teams and directly with Product owners translating requirements into robust, maintainable features. Technologies: Javascript, TypeScript, .NET, Node.js, C#, React.js, Next.js, Vue.js, D3.js, Swagger, Apache Thrift, Docker, AWS, Azure, Go, TailwindCSS, Jest, Golang, Kubernetes, Python, FastAPI, New Relic, Bugsnag

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Software Engineer

Keller Williams Oct 2016 – Mar 2018

Accomplished the design and development of two verticals on the Command platform, as measured by serving over thousands of real estate agents, utilizing React.js, Next.js, and Node.js.

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Contributed as a full stack frontend for SmartPlans, the core application for users to build automated workflows to handle email/SMS/task- based communications, as measured by the system's ability to process millions of events per day.

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• Participated in architecture, system design, technical requirements, and production support to ensure the successful delivery of the platform. Developed a C#/.NET-based API layer to power the backend of the Command platform, as measured by its ability to handle millions of daily transactions and integrate with various third-party services.

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Managed over 15 different internal libraries based on a monorepo using Lerna, as measured by the seamless maintenance and updates across the codebase.

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Collaborated with the frontend team to ensure seamless integration between the C#/.NET backend and the React.js/Next.js-based user interfaces.

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• Implemented quality assurance through unit tests using NUnit, ensuring high code quality and reliability. Technologies: C#, .NET Core 2, ASP.NET, Javascript, Typescript, React, Next.js, SQL, Kentico, Node.js, Jenkins, Stripe, AWS, Azure, Perl, IIS, CI/CD, PostgreSQL, ASP.NET MVC, Lerna, NUnit

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EDUCATION

Computer Science

Oregon State University • 2012 - 2016

SKILLS

Frontend Frameworks: React.js, Angular 2+, Next.js, Vue.js, Nuxt, Angular JS, jQuery, Webpack, Vite UI Frameworks: Bootstrap, Material UI, Chakra UI, Ant Design, Styled Component, Tailwind CSS, Fluent UI, D3.js, Rechart, Victory Chart Backend Frameworks: Node.js, Express.js, Nest.js, ASP.NET, .NET Core, Spring Boot, Django, Fast API, Flask Database: MySQL, SQLite, PostgreSQL, MongoDB, MsSQL, Redis, Amazon DynamoDB, Azure Storage Cloud Services: Kubernetes, Snowflake, AWS Amplify, AWS, AWS Lambda, Azure Container, Azure functions, GCP, Firebase, Google Cloud, Grafana, Splunk, Datadog, New Relic, Kafka

Testing Tools: Mocha, Jest, Karma, Puppeteer, BrowserStack, Cypress, Playwright, Selenium, Postman, SQLUnit Programming Languages: JavaScript, Typescript, C#, Java, Go, PHP, GraphQL, Python, HTML, CSS

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