New York, NY

Mitchell SamFullstack Software Engineer

>I build things that scale.
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Work Experience

A.V. Services / JPMC
Dec 2025 — Present
Current
Fullstack Software Engineer II

Primary engineer on a multimedia integration application at JPMorgan Chase, focused on codebase modernization and platform stability.

  • Codebase Modernization: Leading a systematic refactoring initiative across the full stack, improving code quality, maintainability, and long-term extensibility of a complex internal platform.
  • AI-Assisted Development: Leveraging GitHub Copilot and Claude Code to accelerate large-scale refactoring efforts, significantly increasing throughput and code quality across the codebase.
  • Spec-Driven Development: Championing the adoption of spec-driven development practices with the broader engineering team, establishing a disciplined approach to defining behavior before implementation.
  • Full Rewrite Initiative: Collaborating with the team to architect a full rewrite of the platform, applying spec-driven development methodologies to modernize the application's architecture and improve scalability.
Consultant
Jun 2023 — Dec 2025
Independent
Software Developer

Independent consulting focused on infrastructure, legacy system upgrades, and intelligent data ingestion pipelines.

  • Windows on the Lake: Refactored and enhanced a legacy email parsing system that routes client inquiries to a CRM, integrating the GLiNER Named Entity Recognition model for intelligent NLP-based tagging and categorization.
  • HEVO: Conducted a post-migration technical audit of AWS infrastructure, legacy Java codebases, and CI/CD pipelines to restore platform functionality after a contractor transition.
CircleBlack Inc.
Mar 2020 — Jun 2023
3 yrs
Software Engineer

Agile FinTech company offering an all-in-one wealth management platform for portfolio management, performance reporting, and rebalancing.

  • Front-End Modernization: Migrated multiple Angular front ends to React, preserving 100% functionality, reducing loading times by 50%, and creating a smoother user experience.
  • Queueing System: Built a Redis-based queuing system to handle high-volume financial report processing, reducing backend processing time by 50% and improving system reliability.
  • Third-Party Integrations: Integrated third-party systems via RESTful APIs, expanding platform functionality and product offerings by 50%.
  • Automated Testing: Developed comprehensive automated tests using Mocha, Chai, and Jasmine, achieving 100% code coverage and improving deployment confidence.
  • Onboarding & Documentation: Reduced new-hire ramp-up time by 25% through technical environment setup and detailed onboarding documentation.
Windows on the Lake
Mar 2019 — Feb 2020
Junior
Junior Developer

Premiere waterfront wedding venue and events facility.

  • Email Parser: Enhanced the automated email parser, improving data extraction accuracy by 33% and streamlining communication processes.
  • CRM Optimization: Optimized CRM data flow, resulting in a 20% increase in customer conversions.
  • Backend Development: Developed new backend API features using Node.js and Express, expanding functionality by 25%.
  • Container Deployments: Managed Docker container deployments, achieving 99.9% uptime and improving scalability for client applications.
FDM / Fannie Mae
May 2016 — Jan 2018
Early career
Business Analyst Consultant

Embedded consultant at Fannie Mae, a government-sponsored enterprise issuing mortgage-backed securities.

  • QA Automation: Wrote Python, Bash, and SQL tooling for data analysis and QA validation, reducing manual testing time by 50%.
  • Automation: Automated production-related tasks, saving approximately 100 man-hours per month.
  • Data Analytics: Produced, analyzed, and visualized 100+ usage and performance metrics to inform stakeholder decisions.
  • Loan Performance: Delivered application enhancements that reduced report generation time by 50%.
Amelotte International
Nov 2014 — Jul 2015
Early career
IT Support

Textiles and clothing manufacturing group with global operations.

  • Database Development: Built a database solution for financial tracking, reducing invoice processing time by 25%.
  • Mentorship: Led training sessions on database schema design and data best practices.
Ascend Leadership
Jun 2013 — Apr 2014
Early career
IT Support

Non-profit offering career and mentorship programs for Pan-Asian professionals.

  • Web & Database: Managed website and membership database, contributing to a 50% increase in event registrations.
  • Data Analysis: Analyzed metrics for 50+ volunteer branches and 5,000+ registered members.
  • Acquisition Project: Supported an organizational acquisition by merging 60,000+ contact records while ensuring data integrity.
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Projects

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More coming soon

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Skills

Languages
  • 01JavaScript (ES6+)
  • 02TypeScript
  • 03Python
  • 04Java
  • 05SQL
  • 06HTML
  • 07CSS
Frameworks
  • 01React
  • 02Next.js
  • 03Node.js
  • 04Express
  • 05Redux
  • 06Angular
  • 07Bootstrap
Databases
  • 01PostgreSQL
  • 02MS SQL Server
  • 03MySQL
  • 04MongoDB
  • 05Redis
DevOps & Cloud
  • 01AWS (Lambda, S3, CloudFront, Route53)
  • 02Docker
  • 03Git
  • 04CI/CD
  • 05Jenkins
  • 06Webpack
  • 07Vite
Testing
  • 01Jest
  • 02Playwright
  • 03Mocha
  • 04Chai
  • 05Jasmine
  • 06Postman
AI Tools
  • 01GitHub Copilot
  • 02Claude Code
Licenses & Certifications
  • Foundation Certificate in Business Analysis (2015)
  • ITIL Foundation Certificate in IT Service Management
  • AWS Certified Developer – Associate (in progress)