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I am a product-driven Senior AI & Full Stack Engineer with 10 years of experience building and scaling customer-facing SaaS platforms and AI-enabled products. I specialize in integrating large language models, retrieval-augmented generation, and AI orchestration into production systems used by global enterprise customers, with strengths in TypeScript, React, Node.js, and modern AI toolchains like LangChain. I thrive in fast-moving, remote-first environments where shipping quickly, learning from users, and iterative improvement matter most. I enjoy turning ambitious product ideas into reliable, scalable backend services and delightful user experiences through rapid prototyping, pragmatic architecture, and cross-functional collaboration.…I am a product-driven Senior AI & Full Stack Engineer with 10 years of experience building and scaling customer-facing SaaS platforms and AI-enabled products. I specialize in integrating large language models, retrieval-augmented generation, and AI orchestration into production systems used by global enterprise customers, with strengths in TypeScript, React, Node.js, and modern AI toolchains like LangChain. I thrive in fast-moving, remote-first environments where shipping quickly, learning from users, and iterative improvement matter most. I enjoy turning ambitious product ideas into reliable, scalable backend services and delightful user experiences through rapid prototyping, pragmatic architecture, and cross-functional collaboration.

Melvin Marquez

Full Stack Developer, AI Engineer, Data Scientist, +2

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I am a product-driven Senior AI & Full Stack Engineer with 10 years of experience building and scaling customer-facing SaaS platforms and AI-enabled products. I specialize in integrating large language models, retrieval-augmented generation, and AI orchestration into production systems used by global enterprise customers, with strengths in TypeScript, React, Node.js, and modern AI toolchains like LangChain. I thrive in fast-moving, remote-first environments where shipping quickly, learning from users, and iterative improvement matter most. I enjoy turning ambitious product ideas into reliable, scalable backend services and delightful user experiences through rapid prototyping, pragmatic architecture, and cross-functional collaboration.…I am a product-driven Senior AI & Full Stack Engineer with 10 years of experience building and scaling customer-facing SaaS platforms and AI-enabled products. I specialize in integrating large language models, retrieval-augmented generation, and AI orchestration into production systems used by global enterprise customers, with strengths in TypeScript, React, Node.js, and modern AI toolchains like LangChain. I thrive in fast-moving, remote-first environments where shipping quickly, learning from users, and iterative improvement matter most. I enjoy turning ambitious product ideas into reliable, scalable backend services and delightful user experiences through rapid prototyping, pragmatic architecture, and cross-functional collaboration.

Available to hire

I am a product-driven Senior AI & Full Stack Engineer with 10 years of experience building and scaling customer-facing SaaS platforms and AI-enabled products. I specialize in integrating large language models, retrieval-augmented generation, and AI orchestration into production systems used by global enterprise customers, with strengths in TypeScript, React, Node.js, and modern AI toolchains like LangChain.

I thrive in fast-moving, remote-first environments where shipping quickly, learning from users, and iterative improvement matter most. I enjoy turning ambitious product ideas into reliable, scalable backend services and delightful user experiences through rapid prototyping, pragmatic architecture, and cross-functional collaboration.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior AI Backend Engineer / Tech Lead at Clio

January 1, 2025 - Present

Led the design and architecture of an AI Litigation Intelligence System using RAG-based architecture to automate analysis of large-scale legal case files and generate structured case timelines, reducing manual document review effort by 60%. Architected backend AI services with FastAPI and Node.js for document ingestion, embedding generation, and LLM orchestration; built entity extraction and structuring pipelines to convert unstructured documents into structured representations of events, participants, and timelines for downstream reasoning. Implemented multi-tenant RBAC security architecture ensuring strict data isolation and enterprise-grade compliance. Designed a hybrid retrieval system (vector embeddings and keyword filtering) and optimized retrieval performance with caching and prompt tuning, reducing latency and operational cost by 35–45% while improving search relevance by 40%. Owned the end-to-end AI knowledge and semantic search layer for intelligent querying across large le

AI Full Stack Engineer — Generative AI at Canva

September 1, 2023 - October 1, 2025

Built AI-powered creative features embedded directly into visual design workflows, including generative text tools, contextual design suggestions, and automated content creation assistance for non-technical users. Designed and implemented RAG-based AI systems using vector databases to enable semantic retrieval of design assets, templates, and contextual knowledge for real-time creative assistance. Developed backend orchestration services (Go + TypeScript) for managing LLM routing, prompt lifecycle, response validation, and cost-aware token optimization across user-facing AI features. Delivered full-stack AI features (React + backend APIs) that integrate generative AI into design editing flows, improving content creation speed and usability. Prototyped and shipped AI experiments in collaboration with product and design teams, rapidly turning concepts into production-ready tools. Built asynchronous processing systems for embedding generation, design asset indexing, and long-running AI in

Senior Backend Engineer — Consultant at Capgemini

April 1, 2021 - August 1, 2023

Led end-to-end design and delivery of core SaaS product features, translating high-level product requirements into scalable backend services and clean, maintainable frontend implementations. Architected backend logic within a mature monolithic architecture, improving modularity and long-term maintainability while preserving system simplicity. Refactored legacy components to reduce technical debt and enable faster and safer feature iteration. Designed and implemented robust RESTful APIs used by web and internal systems, ensuring clear contracts, predictable behavior, and backward compatibility across releases. Improved application performance through structured database query optimization, indexing strategies, and selective caching. Built asynchronous background job workflows for non-blocking operations such as notifications, data processing, and scheduled tasks, ensuring responsive user-facing performance. Operated with high autonomy in a remote-first engineering environment, maintaini

Mid - Full Stack Engineer / Data Engineer at CGI

January 1, 2018 - March 1, 2021

Designed and implemented scalable REST APIs and backend services for enterprise and consumer platforms. Developed asynchronous workflows and background job systems for business-critical operations. Integrated third-party systems with resilient communication patterns and robust error handling. Contributed to AWS deployments and CI/CD pipelines to improve production reliability and release efficiency. Led code reviews and provided technical mentorship to junior engineers, improving overall team engineering quality. Delivered enterprise-grade features within structured project timelines, ensuring reliability and maintainability under production constraints.

Web Developer at FUJITSU

November 1, 2016 - December 1, 2017

Developed Java-based REST APIs and enterprise web services. Implemented frontend components aligned with enterprise UI standards. Supported production systems and resolved defects in mission-critical applications. Participated in Agile development cycles and cross-functional collaboration.