Gabriel Silva
AboutWorkExperienceSkillsContact
PTEN
Software Engineer

From discovery to deployment.

I'm Gabriel de Jesus Silva, a software engineer since 2018. I build web systems and distributed backends in Node.js and TypeScript, from technical discovery to deployment. Today I work mostly on AI products at Sami Saúde and Untimeless AI.

See the workGet in touch
Own product · SaaS

Untimeless AI

A meeting intelligence platform. A browser extension captures live captions from Google Meet, Teams and Zoom, and the platform turns that material into a knowledge base for AI chats and agents.

Browser extensionGoogle Meet · Teams · ZoomMCPWorkspaces
Visit untimeless.com
01
Caption capture

Browser extension that scrapes live captions from Meet, Teams and Zoom.

02
AI chats

Conversations over meeting content, with the full history as context.

03
MCP server

A first-party MCP server that plugs meetings into any AI tool the team uses.

04
External integrations

Connects to third-party MCP servers to extend actions and data sources.

05
Teams and workspaces

Workspace-based organisation with member and access management.

About

From architecture to product in production.

I've been building software since 2018, designing and implementing scalable, high-performance systems across healthcare, technology, legal, finance and HR.

I work mainly with Node.js, TypeScript and NestJS in distributed architectures (modular monoliths, microservices and event-driven systems with Kafka, RabbitMQ and SQS), supported by CI/CD, OpenTelemetry, Grafana and automated testing.

In recent years my focus has shifted to applied AI: solutions built on generative AI, RAG and MCP, from technical discovery and architecture modelling through to implementation, deployment and validation with real users.

Since 2018Node.js · TypeScript · NestJSRAG · MCP · AgentsHealthcare · SaaS · Fintech
Gabriel de Jesus Silva
Senhor do Bonfim, Bahia, Brazil
Work

Selected projects

Production systems, own products and open source libraries.

Own product2025 to 2026

Untimeless AI

Meeting intelligence SaaS: caption capture through a browser extension, AI chats, an MCP server and team management. Built end-to-end, from discovery to deployment.

TypeScriptNestJSReactPostgreSQLGenerative AIMCP
Open →
Sami Saúdesince 2025

Samira

AI support agent combining RAG, internal MCP servers and intelligent agents, integrated with Zendesk and internal services. Raised resolution without human handoff from 19% to 53%, with over 85% positive ratings.

RAGMCPAgentsNestJSRabbitMQOpenTelemetry
Albert Einstein2024 to 2025

Care Coordination

System linking patients to healthcare professionals through care teams, integrated into the hospital's micro front-end portal.

NestJSGraphQLReactKafkaMySQLKubernetes
Open source2023

Decorated Dataloaders

NestJS module that declares GraphQL dataloaders through decorators, solving the N+1 problem with configurable batching and caching.

NestJSGraphQLTypeScript
Open →
Open source2023

Decorated Factory

Library that generates object instances for testing from decorators, with support for relations, arrays and value overrides.

TypeScriptFakerRollup
Open →
Takaoka Anestesia2022 to 2024

Demand To Invoice

Medical scheduling system covering the full flow, from registration and patient care through to billing and payment.

NestJSGraphQLReactPostgreSQLAzure
Fleury2021 to 2023

Medical Scheduling

Web and mobile application for shift scheduling and negotiation among network physicians, with dynamic anamnesis forms.

Node.jsReact NativeNext.jsGraphQLPostgreSQL
GoHealth2021 to 2022

NPS for clinics and hospitals

SaaS Net Promoter Score platform measuring patient satisfaction across partner hospital units.

NestJSGraphQLReactPostgreSQLDocker
Track record

Professional experience

Education

Academic background

Computer Science
Instituto Federal de Educação, Ciência e Tecnologia
Bachelor's degreeStarted 2018Paused in the 4th semester
Technical Course in Computing
Instituto Federal de Educação, Ciência e Tecnologia
Technical degree2018 to 2019Completed
Stack

Technical skills

The technologies I use day to day to design, build and operate systems.

Applied AI
Generative AIRAGMCPAgentsGeminiPrompt engineering
Back-end
JavaScriptTypeScriptNode.jsNestJSFastifyGraphQLExpress
Front-end
ReactNext.jsReact NativeTailwindMaterial UIHTMLCSS
Data
PostgreSQLMySQLMongoDBRedisSQLiteSQL Server
Architecture & messaging
MicroservicesEvent-drivenKafkaRabbitMQAWS SQS
Infra & DevOps
DockerKubernetesCI/CDAWSAzureGCPGitHub ActionsJenkinsCoolify
Observability & quality
OpenTelemetryGrafanaKibanaAutomated testingScrumKanban
Links

Where to find me

GitHubgabrieljsilvaLinkedIngabrieldjs21Emailcontato@gabrieljs.devPhone+55 74 99909-1508Productuntimeless.com
Contact

Let's build something with AI

Open to conversations about AI products, distributed systems architecture and engineering work.

contato@gabrieljs.dev
© 2026 Gabriel de Jesus Silva. All rights reserved.
Any fool can write code that a computer can understand. Good programmers write code that humans can understand. · Martin Fowler