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I’m Raphael Aviz, a full-stack software engineer focused on React and TypeScript, with strong end-to-end ownership across backend services (Node.js and Java/Spring Boot), CI/CD, and production support. Over the last two years, I’ve delivered complex, configurable B2B SaaS features from UI implementation through backend integration to deployment—often translating regulatory and client-specific requirements into robust architectures rather than simple CRUD flows.…I’m Raphael Aviz, a full-stack software engineer focused on React and TypeScript, with strong end-to-end ownership across backend services (Node.js and Java/Spring Boot), CI/CD, and production support. Over the last two years, I’ve delivered complex, configurable B2B SaaS features from UI implementation through backend integration to deployment—often translating regulatory and client-specific requirements into robust architectures rather than simple CRUD flows.

Raphael Aviz

Full Stack Developer, Software Engineer, Web Developer, +2

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I’m Raphael Aviz, a full-stack software engineer focused on React and TypeScript, with strong end-to-end ownership across backend services (Node.js and Java/Spring Boot), CI/CD, and production support. Over the last two years, I’ve delivered complex, configurable B2B SaaS features from UI implementation through backend integration to deployment—often translating regulatory and client-specific requirements into robust architectures rather than simple CRUD flows.…I’m Raphael Aviz, a full-stack software engineer focused on React and TypeScript, with strong end-to-end ownership across backend services (Node.js and Java/Spring Boot), CI/CD, and production support. Over the last two years, I’ve delivered complex, configurable B2B SaaS features from UI implementation through backend integration to deployment—often translating regulatory and client-specific requirements into robust architectures rather than simple CRUD flows.

Available to hire

I’m Raphael Aviz, a full-stack software engineer focused on React and TypeScript, with strong end-to-end ownership across backend services (Node.js and Java/Spring Boot), CI/CD, and production support. Over the last two years, I’ve delivered complex, configurable B2B SaaS features from UI implementation through backend integration to deployment—often translating regulatory and client-specific requirements into robust architectures rather than simple CRUD flows.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Portuguese

Fluent

Work Experience

Full-Stack Engineer (Founder & Sole Developer) at UNTELL - Interactive Stories

June 1, 2025 - Present

Built and shipped a full-stack interactive fiction platform solo (0→1) including choice-driven branching narratives with personalized outcomes, a discovery marketplace, and a creator dashboard. Designed and implemented a story engine with conditional branching logic, scene management, and real-time preview to support non-linear story creation. Created a canvas-based drag-and-drop story editor using React Flow, using Zustand for editor state, Zod for validation across forms/API boundaries, and TanStack Query for data fetching/caching. Implemented backend services with Node.js/Next.js, PostgreSQL data modeling, OAuth authentication (Google/GitHub), transactional email, and third-party integrations (OpenAI API), deployed and monitored on Cloudflare. Independently shipped additional product surfaces including onboarding, AI-assisted writing/localization, multi-playthrough tracking, media storage, creator analytics, and a user feedback loop.

Senior Full-Stack Developer (Frontend Focused) at Global Side

October 1, 2024 - Present

Led a complete frontend architecture rewrite consolidating company apps into a Turborepo monorepo to improve delivery speed and client onboarding. Owned development of Regeleditor (Rule Editor), a configuration app for German private health insurance tariff rules, designed for high configurability with client-specific tariff modeling. Proposed and implemented a data model overhaul to support multiple contracts per insured person while keeping backward compatibility and avoiding disruptive migrations across schema/DTOs and UI assumptions. Delivered a custom IDE extension (IntelliJ and VSCode/Cursor) providing inline translations/definitions for domain jargon to reduce daily friction for the engineering team. Acted as a primary bridge between engineering and business stakeholders, converting regulatory and product requirements into concrete architecture and implementation decisions.

Full-Stack Developer (Contractor) at Colendi (Crypto/Fintech)

February 1, 2023 - May 1, 2024

Triaged vulnerability scan findings from Checkmarx and Snyk, filtering false positives and implementing OWASP-aligned remediations across an admin panel and API integrations. Identified and fixed an OWASP API Security Top 10 Broken Object Level Authorization (BOLA) vulnerability on a wallet balance endpoint by verifying the requesting user matches the resource owner before returning data. Designed and shipped a fully responsive admin panel using TypeScript, React, Tailwind CSS, and DaisyUI to support rapid release cycles typical of crypto/fintech. Set up and integrated MongoDB using Prisma ORM, and implemented/maintained a CI/CD pipeline running Cypress tests on every pull request.

Front-End Developer (Contractor) at Sideshift (Crypto Exchange)

July 1, 2019 - January 1, 2023

Built and maintained responsive UI components for the main web application using TypeScript, React, and Next.js, collaborating with senior developers on features, bug fixes, and code review. Triaged Semgrep vulnerability scan findings, filtering true vulnerabilities from noise and implementing OWASP-aligned remediations on the exchange’s main web application. Contributed to Jest-based testing and ongoing UI quality improvements.