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Hi, I’m Alejandro Ficachi, a full-stack software engineer based in San Diego, CA. I design and scale high-performance web systems, from distributed backends to polished front-ends, and I thrive on building reliable, scalable software. I specialize in TypeScript, React, Node.js, and PostgreSQL, and I’ve led teams to deliver complex platforms like adaptive learning experiences. I’m passionate about mentoring engineers and shipping practical solutions that users love.…Hi, I’m Alejandro Ficachi, a full-stack software engineer based in San Diego, CA. I design and scale high-performance web systems, from distributed backends to polished front-ends, and I thrive on building reliable, scalable software. I specialize in TypeScript, React, Node.js, and PostgreSQL, and I’ve led teams to deliver complex platforms like adaptive learning experiences. I’m passionate about mentoring engineers and shipping practical solutions that users love.

Alejandro Ficachi

Full Stack Developer, Web Developer, Programmer, +3

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Hi, I’m Alejandro Ficachi, a full-stack software engineer based in San Diego, CA. I design and scale high-performance web systems, from distributed backends to polished front-ends, and I thrive on building reliable, scalable software. I specialize in TypeScript, React, Node.js, and PostgreSQL, and I’ve led teams to deliver complex platforms like adaptive learning experiences. I’m passionate about mentoring engineers and shipping practical solutions that users love.…Hi, I’m Alejandro Ficachi, a full-stack software engineer based in San Diego, CA. I design and scale high-performance web systems, from distributed backends to polished front-ends, and I thrive on building reliable, scalable software. I specialize in TypeScript, React, Node.js, and PostgreSQL, and I’ve led teams to deliver complex platforms like adaptive learning experiences. I’m passionate about mentoring engineers and shipping practical solutions that users love.

Available to hire

Hi, I’m Alejandro Ficachi, a full-stack software engineer based in San Diego, CA. I design and scale high-performance web systems, from distributed backends to polished front-ends, and I thrive on building reliable, scalable software.

I specialize in TypeScript, React, Node.js, and PostgreSQL, and I’ve led teams to deliver complex platforms like adaptive learning experiences. I’m passionate about mentoring engineers and shipping practical solutions that users love.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

English

Fluent

Work Experience

Adaptive Ed Tech Platform Software Engineer / Tech Lead at Square

January 1, 2022 - Present

Built the Square learning platform from the ground up; led a team of five engineers to expand and maintain full-stack architecture using React, Node.js, PostgreSQL, and Docker; designed a scalable Prisma schema with relational data structures; implemented a real-time code execution and judging system with Monaco Editor; established CI/CD with Jest, Playwright, and GitHub Actions, scaling the platform to over $100K monthly revenue and thousands of active users.

Decentralized Education Infrastructure Software Engineer at Learning Economy

December 31, 2024 - October 20, 2025

Contributed to frontend and backend development of WeLibrary, a social learning platform enabling group collaboration and educational content sharing; modernized React architecture and improved UI performance; built AI-powered content moderation using LLM-based classification; developed group certificate broadcasting and real-time collaboration features.

Software Engineer, Microsoft Teams at Microsoft

January 1, 2022 - October 20, 2025

Worked on a large React + TypeScript + GraphQL codebase, delivering features used by millions; shipped key experiences such as Get link to chat and Chat Info Pane; improved performance via Jest/Enzyme testing, telemetry instrumentation, GraphQL optimization, and memory leak resolution.

Ed Tech Platform Software Engineer at CodeBreakers LLC

January 1, 2021 - October 20, 2025

Engineered a modular, scalable web platform using React and Express.js with RESTful APIs; refactored legacy CSS; optimized performance via Virtual DOM; implemented Python backend modules with automated tests and data pipelines to power personalized learning recommendations.

Front End Developer at Miracle Foundation

January 1, 2019 - October 20, 2025

Migrated legacy WordPress site to a component-based React app, boosting productivity and streamlining customer workflows through modular JavaScript integrations that improved efficiency.

Adaptive Ed Tech Platform Software Engineer / Technical Lead at Square

January 1, 2022 - October 28, 2025

Built the Square learning platform from the ground up and led a five-person engineering team to expand and maintain its full-stack architecture using React, Node.js, PostgreSQL, and Docker. Designed scalable microservices, implemented an intelligent review engine, and established CI/CD pipelines to accelerate delivery and improve security and reliability.

Decentralized Education Infrastructure Software Engineer at Learning Economy

January 1, 2024 - January 1, 2024

Contributed to frontend and backend development of WeLibrary, a social learning platform enabling group collaboration and educational content sharing. Modernized React architecture, improved UI performance, and implemented AI-powered content moderation and moderation tooling.

Software Engineer at Microsoft

January 1, 2022 - January 1, 2022

Worked on the Microsoft Teams product in a large React + TypeScript + GraphQL codebase, delivering features and performance improvements used by millions of users. Instrumented telemetry and collaborated with cross-functional teams to optimize UX and reliability.

Ed Tech Platform Software Engineer at CodeBreakers LLC

January 1, 2021 - January 1, 2021

Engineered a modular, scalable web platform using React and Express, built RESTful APIs, refactored legacy CSS, and optimized performance via virtual DOM. Implemented Python-based backend modules with automated tests and ML data pipelines to power personalized learning recommendations.

Frontend Developer at Miracle Foundation

January 1, 2019 - January 1, 2019

Migrated a legacy WordPress site to a component-based React app, boosting team productivity by 25% and streamlining customer workflows through modular JavaScript integrations that increased efficiency by 12%.