Vamsi is available for hire

Vamsi Yechoor

Verified Expert in Engineering

Back-end Developer

Location

New York, NY, United States

Toptal Member Since

November 14, 2022

Vamsi has years of experience in Amazon and leading a top-tier education startup. He now wants to experience different types of projects as a freelancer. Vamsi's main strengths are getting things done and communicating well. He excels in architecture and full-stack development and can develop end-to-end solutions while optimizing for cost and scalability. He also has years of experience in people and project management and can be autonomous, work in teams, or lead them.

Software User Experience (UX)Front-end Software as a Service (SaaS)Cloud Web Development User Interface (UI)Excel Add-ins Full-stack Development SaaS Back-end Development Customer Relationship Management (CRM)SaaS Design Data Visualization Amazon RDS

Portfolio

VamSolutions

Blockchain, Leadership, CTO, CEO, Full-stack, Full-stack Development...

Learn to Win

JavaScript, React, React Native, Laravel, Bitrise, iOS, Amazon RDS...

Amazon.com

AWS CloudFormation, ECS, AWS Lambda, IntelliJ IDEA, MacOS, Cloud Architecture...

Experience

API Architecture - 9 years Node.js - 8 years Java - 5 years Cloud Architecture - 5 years React Native - 5 years React - 3 years GraphQL - 3 years Laravel - 3 years

Availability

Part-time

Preferred Environment

MacOS

The most amazing...

...things I've built are a customer service automation platform at Amazon serving thousands of associates and an enterprise e-learning application.

Work Experience

Owner | CEO

2023 - PRESENT

VamSolutions

Built three companies and helped scale them from pre-seed to reach their first rounds of funding with business-minded leaders.
Created blockchain applications, AI applications, and full-stack products from scratch that have maintained scalability with no downtime.
Hired and managed 15 developers and helped create a great tech culture at each company.

Technologies: Blockchain, Leadership, CTO, CEO, Full-stack, Full-stack Development, Artificial Intelligence (AI), Team Leadership, Customer Relationship Management (CRM), Software QA, Dart, Google Cloud Platform (GCP), ChatGPT, Large Language Models (LLMs), Architectural Patterns, SaaS Design, Cloud Patterns, EventBus, Microservices Architecture, Separation of Concerns (SoC), Serverless Architecture, AWS Cloud Architecture

Director of Engineering | Senior Engineer

2020 - PRESENT

Learn to Win

Cultivated the engineering team from two to nine developers while spreading engineering culture and Agile methodology across the company.
Secured the application's ecosystem to get an ATO to deploy into the IL6 Department of Defense by implementing 130 NIST guidelines, enabling $500,000 ARR with only a 5-member team in six months.
Migrated applications from the legacy infrastructure to the managed, secure infrastructure with CI/CD controls which reduced engineering costs by 50% and $20,000 annually.
Designed, architected, reviewed, and released 28 full-stack, product-enhancing features and personally developed seven of them, which enabled $1 million ARR.
Led four major refactor projects to redesign table schema and APIs to reduce the average latency by 70% and P99 by 90%.

Technologies: JavaScript, React, React Native, Laravel, Bitrise, iOS, Amazon RDS, Amazon S3 (AWS S3), Amazon EKS, Amazon Route 53, Amazon CloudFront CDN, Slack, MacOS, Visual Studio Code (VS Code), Cloud Architecture, Architecture, API Architecture, GraphQL, Node.js, Full-stack, Back-end, Databases, SQL, Amazon Web Services (AWS), DevOps, Leadership, CI/CD Pipelines, TypeScript, Python, Functional Programming, Terraform, PostgreSQL, OAuth 2, JSON, Docker, Technical Writing, Mobile Apps, Startups, Amazon API, Mailchimp, Stripe API, Marketing, Data Science, Payment APIs, Admin Panels, Dashboards, Amazon EC2, Electron, Auth0, Stripe, Analytics, Chart.js, CSS, Front-end, Twilio, SMS, MySQL, Cron, Background Jobs, API Integration, REST APIs, Postman, Data Engineering, Data Integration, Snowflake, Data Pipelines, Machine Learning Operations (MLOps), Kubernetes, Swagger, PHP, APIs, Symfony, Technical Leadership, Software Architecture, Software as a Service (SaaS), Cloud, AWS Lambda, WebSockets, Redis Cache, Amazon CloudWatch, Mobile App Development, Amazon Cognito, Azure Active Directory, Apache, Linux, Learning Management Systems (LMS), Workday, Ionic, Project Management, CTO, Machine Learning, MERN Stack, Web Development, User Interface (UI), Design, Mobile Development, Apple Numbers, Spreadsheets, Microsoft Excel, Redis, Celery, Mobile, Flutter, Cross-platform, HTML, Redux, Figma, Microservices, Android, User Experience (UX), Amazon Elastic Container Service (Amazon ECS), AWS Fargate, Data Analysis, Next.js, Firebase, Cloud Firestore, Google Cloud, GitLab, GitOps, Git, DevOps Engineer, Feasibility, Feasibility Studies, Solution Architecture, Elasticsearch, Kibana, Data Visualization, XML, Amazon ElastiCache, Grafana, Amazon Aurora, Networks, Networking, Designing for Data, Cloud Platforms, Full-stack Development, Data Privacy, Private Clouds, SaaS, Event-driven Architecture, Amazon API Gateway, AWS Elastic Beanstalk, Unit Testing, Integration Testing, NoSQL, Business to Business (B2B), jQuery, Software, Business Models, Jira, AWS Amplify, Back-end Development, Back-end Architecture, Artificial Intelligence (AI), Software Design, Team Leadership, Customer Relationship Management (CRM), Software QA, Dart, Architectural Patterns, SaaS Design, Cloud Patterns, EventBus, Microservices Architecture, Separation of Concerns (SoC), Serverless Architecture, AWS Cloud Architecture

Software Engineer II | Tech Lead

2017 - 2020

Amazon.com

Contributed to a customer service automation platform which facilitates interactions with customers of over 150 Amazon teams, including AWS, Retail, Alexa, Amazon Go, Kindle, and Transportation, and has 60,000 Amazon associate users.
Migrated the infrastructure to native AWS, which involved onboarding 13 services and one website to use 15+ AWS tools.
Led a team of five developers by setting team priorities and managing deliverables using the Agile methodology.
Produced user experience improvements that reduced associate handling time of cases containing 60 million phone, email, and chat contacts by around three mins, resulting in YTD savings of $5+ million.

Technologies: AWS CloudFormation, ECS, AWS Lambda, IntelliJ IDEA, MacOS, Cloud Architecture, Architecture, Java, API Architecture, Full-stack, Back-end, Databases, SQL, Amazon Web Services (AWS), DevOps, Leadership, CI/CD Pipelines, Python, Terraform, PostgreSQL, OAuth 2, JSON, Docker, Spring, Spring Security, Spring Boot, Technical Writing, Spring MVC, eCommerce, Amazon API, Data Science, Admin Panels, Amazon EC2, Analytics, CSS, Vue, Front-end, MySQL, Cron, Background Jobs, API Integration, REST APIs, Postman, Data Engineering, Data Integration, Snowflake, Data Pipelines, Machine Learning Operations (MLOps), Kubernetes, Swagger, APIs, Technical Leadership, Software Architecture, Software as a Service (SaaS), Cloud, WebSockets, Amazon DynamoDB, Redis Cache, Amazon CloudFront CDN, Amazon CloudWatch, Amazon Cognito, Apache, Linux, CRM APIs, Project Management, Machine Learning, MERN Stack, Web Development, User Interface (UI), Design, Apple Numbers, Spreadsheets, Microsoft Excel, Redis, Smart Devices, Flutter, Cross-platform, Internet of Things (IoT), HTML, Redux, Microservices, User Experience (UX), Amazon Elastic Container Service (Amazon ECS), AWS Fargate, Data Analysis, GitLab, Git, DevOps Engineer, Feasibility, Feasibility Studies, Solution Architecture, ELK (Elastic Stack), Elasticsearch, Data Visualization, XML, Amazon ElastiCache, Amazon EKS, Amazon Aurora, Networks, Networking, Designing for Data, Cloud Platforms, Full-stack Development, Data Privacy, Private Clouds, SaaS, Event-driven Architecture, Amazon S3 (AWS S3), Amazon API Gateway, Unit Testing, Integration Testing, NoSQL, Amazon Route 53, Node.js, Telephony, jQuery, Software, Jira, Tailwind CSS, Back-end Development, Back-end Architecture, Artificial Intelligence (AI), Software Design, Team Leadership, Customer Relationship Management (CRM), Software QA, Architectural Patterns, SaaS Design, Cloud Patterns, EventBus, Microservices Architecture, Separation of Concerns (SoC), Serverless Architecture, AWS Cloud Architecture

Software Engineering Intern

2016 - 2016

Capital One Financial

Developed an AngularJS front end and Java middleware to populate and test personalized offers on the company's public domain.
Interacted with senior leadership to ensure proper architecture and assess benefits and direction of applications.
Nominated for a TechExcellence award for one of only five company-wide projects.

Technologies: Angular, Java, Spring, MacOS, IntelliJ IDEA, API Architecture, Node.js, Full-stack, Back-end, Databases, SQL, Ruby on Rails (RoR), CI/CD Pipelines, TypeScript, PostgreSQL, JSON, Spring Security, Spring Boot, Technical Writing, Spring MVC, Express.js, Payment APIs, Dashboards, CSS, Vue, Front-end, MySQL, Background Jobs, API Integration, REST APIs, Postman, Swagger, APIs, Software Architecture, Software as a Service (SaaS), Cloud, Redis Cache, Apache, Linux, Ionic, MERN Stack, Web Development, User Interface (UI), Design, Apple Numbers, Spreadsheets, Microsoft Excel, Mobile, HTML, Microservices, User Experience (UX), MongoDB, Next.js, Windows, GitLab, Git, DevOps Engineer, Logstash, Data Visualization, Financial Data, XML, Designing for Data, Full-stack Development, Data Privacy, SaaS, Event-driven Architecture, Unit Testing, Integration Testing, NoSQL, jQuery, Software, Jira, Tailwind CSS, Back-end Development, Back-end Architecture, MEAN Stack, Software Design, Software QA, Architectural Patterns, SaaS Design, Cloud Patterns, Separation of Concerns (SoC), Serverless Architecture

Software Engineering Intern

2014 - 2015

Fidelity Investments

Developed a Google-like internal research search engine to replace legacy search applications.
Implemented security requirements, including Kerberos authentication, to satisfy SEC compliance policies.
Realized an average improvement of 900% per search with a runtime decrease from 15 to around 1.5 seconds per search.

Technologies: Java, Angular, API Architecture, Full-stack, Microsoft SQL Server, Back-end, .NET, .NET Core, Databases, SQL, JSON, Spring, Spring Security, Spring Boot, Technical Writing, Spring MVC, Express.js, Dashboards, CSS, Front-end, MySQL, Background Jobs, API Integration, REST APIs, Postman, Swagger, C#, Windows Forms (WinForms), APIs, Software Architecture, Software as a Service (SaaS), Apache, Linux, Web Development, User Interface (UI), Design, Apple Numbers, Spreadsheets, Microsoft Excel, HTML, User Experience (UX), Data Analysis, Windows, GitLab, Git, Data Visualization, Financial Data, Stock Market, XML, Designing for Data, Full-stack Development, Data Privacy, SaaS, Event-driven Architecture, Unit Testing, Integration Testing, NoSQL, jQuery, Software, Jira, Back-end Development, Back-end Architecture, Software Design, Software QA, Separation of Concerns (SoC)

Experience

Learn to Win

https://www.learntowin.com/

I worked on a seed-round funded microlearning application as the second hire of the engineering team. On this team, I worked across the full-stack from cloud infrastructure using AWS and back-end API development in Laravel, PHP, REST, and GraphQL to front-end web applications in React and mobile apps using React Native, iOS, and Android.

In this project, I acted as a project lead, designer, and full-stack engineer.

Algorithmic Trader

A personal project that used sentiment analysis and significant market changes. It involves web scraping various social media sites and Alchemy Sentiment analysis APIs to grade sentiment about multiple companies (which has been shown to impact stock price volatility directly). It also detects significant market changes using Yahoo Finance APIs and leverages Robinhood APIs to execute trades. All of this was created on AWS using Lambdas and ECS Fargate.

Wish List Registry Application

An application that used various eCommerce APIs (Amazon, Walmart, eBay) to allow customers to create wishlists and then optimize based on shipping dates, shipping costs, and inventory. It also allows anonymous wishlist sharing, viewing, and signing up to purchase wishlist items for others.

Genetics Lab Programmer

I worked at Duke University as a researcher. During this time, I started coding and moving away from research into software engineering. I created a program to quickly find specific sequences and mutations the lab was looking for. I wrote this program in C.

Skills

Languages

JavaScript, Java, GraphQL, SQL, TypeScript, Python, PHP, CSS, C#, HTML, Visual Basic for Applications (VBA), C, Embedded C, XML, Dart, Snowflake, Swift

Frameworks

React Native, Laravel, Spring, Express.js, Swagger, Symfony, Flutter, Redux, Tailwind CSS, Angular, .NET, .NET Core, Ruby on Rails (RoR), OAuth 2, Spring Security, Spring Boot, Spring MVC, Django, Ionic, Next.js, Electron

Libraries/APIs

React, Node.js, Walmart API, Amazon API, Vue, REST APIs, Windows Forms (WinForms), jQuery, AWS Amplify, SQLAlchemy, Stripe API, Stripe, Chart.js

Tools

IntelliJ IDEA, Amazon EKS, Amazon CloudFront CDN, AWS CloudFormation, Amazon Elastic Container Service (Amazon ECS), AWS Fargate, Mailchimp, Auth0, Cron, Postman, Amazon CloudWatch, Amazon Cognito, Apache, Spreadsheets, Microsoft Excel, GitLab, Git, Amazon ElastiCache, Jira, Slack, Terraform, Celery, Figma, ELK (Elastic Stack), Logstash, Kibana, Grafana

Paradigms

API Architecture, DevOps, Microservices, Mobile Development, Cross-platform, Event-driven Architecture, Unit Testing, Back-end Architecture, MEAN Stack, Microservices Architecture, Serverless Architecture, Functional Programming, Data Science

Platforms

MacOS, iOS, Android, AWS Lambda, Amazon Web Services (AWS), Docker, Amazon EC2, Twilio, Kubernetes, Linux, Mobile, AWS Elastic Beanstalk, Google Cloud Platform (GCP), Bitrise, Azure, Windows, Visual Studio Code (VS Code), Firebase, Blockchain

Storage

Amazon S3 (AWS S3), Databases, PostgreSQL, JSON, MySQL, Data Integration, Amazon DynamoDB, Redis Cache, Redis, MongoDB, Elasticsearch, Amazon Aurora, NoSQL, Microsoft SQL Server, Data Pipelines, Azure Active Directory, Cloud Firestore, Google Cloud

Industry Expertise

Project Management, Marketing

Other

Algorithms, Software Development, System Design, Critical Thinking, Mathematics, Amazon RDS, Amazon Route 53, ECS, Cloud Architecture, Architecture, User Experience (UX), Full-stack, Back-end, Leadership, CI/CD Pipelines, APIs, Technical Writing, Mobile Apps, eCommerce, Startups, Admin Panels, Dashboards, Analytics, Front-end, SMS, Background Jobs, API Integration, Technical Leadership, Software Architecture, Software as a Service (SaaS), Cloud, WebSockets, Mobile App Development, Learning Management Systems (LMS), MERN Stack, Web Development, User Interface (UI), Design, Apple Numbers, Charity, Donations, Data Analysis, Excel Add-ins, GitOps, DevOps Engineer, Feasibility, Feasibility Studies, Solution Architecture, Data Visualization, Financial Data, Stock Market, Networks, Networking, Designing for Data, Cloud Platforms, Full-stack Development, Data Privacy, Private Clouds, SaaS, Amazon API Gateway, Integration Testing, Software, Back-end Development, Software Design, Team Leadership, Customer Relationship Management (CRM), Software QA, Architectural Patterns, SaaS Design, Cloud Patterns, Separation of Concerns (SoC), AWS Cloud Architecture, Web Scraping, Fintech, Payment APIs, Data Engineering, Machine Learning Operations (MLOps), Workday, CRM APIs, CTO, Machine Learning, Smart Devices, Nonprofits, Business to Business (B2B), Telephony, Financial Modeling, Financing, Business Models, Artificial Intelligence (AI), Large Language Models (LLMs), OpenAI, ChatGPT, EventBus, Sentiment Analysis, Online Dating, Internet of Things (IoT), CEO

Education

2013 - 2017

Bachelor's Degree in Business Administration and Computer Science

The University of North Carolina at Chapel Hill - Chapel Hill, NC, USA

2011 - 2013

High School Diploma in Physics, Biology, and Computer Science

North Carolina School of Science and Mathematics - Durham, NC, USA

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