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I'm a software engineer with 7+ years shipping production web applications end-to-end, blending high-performance React frontends with Python and Node.js services across relational and document data stores. I optimize rendering pipelines, harden client-side runtime, and engineer observable systems that stay stable under load and third-party risk. I also have hands-on experience building AI-powered interfaces with streaming APIs, token-by-token rendering, and image-generation integrations.…I'm a software engineer with 7+ years shipping production web applications end-to-end, blending high-performance React frontends with Python and Node.js services across relational and document data stores. I optimize rendering pipelines, harden client-side runtime, and engineer observable systems that stay stable under load and third-party risk. I also have hands-on experience building AI-powered interfaces with streaming APIs, token-by-token rendering, and image-generation integrations.

Zoriah Cocio

Front-End Developer, Web Developer, Web Designer, +6

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I'm a software engineer with 7+ years shipping production web applications end-to-end, blending high-performance React frontends with Python and Node.js services across relational and document data stores. I optimize rendering pipelines, harden client-side runtime, and engineer observable systems that stay stable under load and third-party risk. I also have hands-on experience building AI-powered interfaces with streaming APIs, token-by-token rendering, and image-generation integrations.…I'm a software engineer with 7+ years shipping production web applications end-to-end, blending high-performance React frontends with Python and Node.js services across relational and document data stores. I optimize rendering pipelines, harden client-side runtime, and engineer observable systems that stay stable under load and third-party risk. I also have hands-on experience building AI-powered interfaces with streaming APIs, token-by-token rendering, and image-generation integrations.

Available to hire

I’m a software engineer with 7+ years shipping production web applications end-to-end, blending high-performance React frontends with Python and Node.js services across relational and document data stores. I optimize rendering pipelines, harden client-side runtime, and engineer observable systems that stay stable under load and third-party risk. I also have hands-on experience building AI-powered interfaces with streaming APIs, token-by-token rendering, and image-generation integrations.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Amharic

Intermediate

Work Experience

Frontend Developer at Upwork (Independent Contractor)

January 1, 2023 - Present

Delivered a developer tool launch page with GSAP animations, custom typewriter reveal, SVG scroll transitions, and a video loading system. Built AI-powered chat interfaces with streaming APIs (SSE and WebSocket) for client engagements, including token-by-token rendering and image-generation integrations. Built full-stack features for clients: REST APIs in Python and Node.js, schema design across PostgreSQL/MongoDB, and integrated React frontends. Shipped production frontends end-to-end with ownership of scope, architecture, performance tuning, and post-launch handoff.

Senior Frontend Developer at ICR

January 1, 2022 - December 1, 2023

Architected a 40+ component React/TypeScript library with Storybook, standardizing UI across multiple product surfaces. Built Python backend services and REST APIs powering features, with PostgreSQL data models and MongoDB for document-heavy workloads. Implemented Zustand and React Query for state management, reducing API calls by 35% on high-traffic flows. Led code reviews, established ESLint rules, and mentored 3 junior developers.

Frontend Developer at APRE Instrumental

January 1, 2019 - December 1, 2021

Built pixel-perfect responsive interfaces and interactive marketing microsites from product designs using CSS Grid, Flexbox, and SCSS. Developed Node.js and Python services with Firebase/Supabase backends, delivering full-stack features end-to-end. Created a zero-dependency form validation library with ARIA support and async validators, increasing accessibility and reliability; partnered with UX teams to refine user flows, boosting conversion rates by 22%.

Frontend Developer Intern at APRE Instrumental

May 31, 2018 - May 31, 2019

Shipped production frontend features alongside the engineering team, ramping to full ownership of client-facing UI work within the year.