Backend & distributed systems
Resilient backend services with performance, security, and observability in production.
- Core
- Java, Spring Boot, Node.js, REST APIs
- Runtime
- SQL, Kafka, queue-based messaging, AWS, Docker
const Thiago: string = "Software Engineer";
I'm Thiago Araujo
Problem Solver|
Backend engineering + AI-assisted execution leadership with Java, AWS, Docker, SQL, Kafka, and LLM orchestration.
Brazil
João Pessoa, PBStack
Core Capabilities
Backend systems, AI execution, and product delivery.
Vibecoding, LLM Orchestration & RAG/Chatbots
Integrated assistants with retrieval pipelines, private context, and quality-controlled AI execution.
- Retrieval
- Chunking, embeddings, vector search, context assembly
- Assistants
- Claude, Codex, chatbot UX, tool use, evals
Product Development & launch
From concept to launch: architecture, delivery, and production operations.
- Products
- POA, Research Nova, and Rolê Junino delivered as production products
- Ops
- Coolify, CI/CD, k6 load tests, monitoring, runtime controls
Resume
Experience & Education
Current roles, education, and certifications.
Experience
1
11-2025 - NOW
Software Engineer
Accenture (Banking Client), Brazil
- Develop and maintain backend services for banking workflows using Java, with focus on reliability, security, and performance.
- Work with AWS and Docker-based environments to support scalable deployments and stable production operations.
- Design and optimize SQL queries and data flows for high-volume transactional scenarios.
- Implement asynchronous integrations with Kafka and queue-based messaging to improve resilience and system decoupling.
2
2024 - NOW
Tech Lead
POA
- Own the online courses platform in production, covering architecture, roadmap, technical decisions, and operation.
- Lead full-stack delivery for video streaming, admin modules, subscriptions, and AI-assisted analytics features.
- Designed a shared-schema architecture with end-to-end typing and an internal LLM gateway for controlled AI rollout.
- Maintain reliability through idempotent webhooks, feature flags, observability, and runtime configuration controls.
3
2026 - NOW
Founder & Tech Lead
Rolê Junino
- Conceived, launched, and operate a mobile-first Junino events platform in production across major cities in Paraiba.
- Architected a pnpm monorepo with Next.js, Express, shared Zod schemas, PostgreSQL/Prisma, Redis, and BullMQ.
- Implemented caching and scalability strategy that moved estimated capacity from ~300-400 to ~2-3K concurrent users.
- Led AI-assisted execution with strict quality gates, CI/CD enforcement, and end-to-end production accountability.
4
08-2024 - 10-2025
LLM Development & Software Architecture
Solinov Tecnologia - Research Nova
- Drove LLM-assisted development for an academic AI SaaS covering document review, technical translation, statistical guidance, effect size calculators, and research management.
- Prioritized architectural decisions, module boundaries, authenticated product flows, and secure access to research-oriented tools.
- Kept quality gates in the loop through review discipline, production accountability, and validation of AI-assisted implementation work.
- Contributed to product development across onboarding, feature availability, user-facing workflows, and secure research tooling.
Education
1
2021 - 2025
Bachelor's in Information Systems
Unifacisa University Center @ Campina Grande, PB
Certifications
Selected work
Projects
Production projects with clear scope, role, and impact.
Online Courses Platform (POA)
Full-stack platform in production with video streaming, admin module, subscription management, and AI-assisted analytics tools.
- Problem
- Build and operate a full education SaaS with secure content, payments, and scalable operations.
- Role
- Current end-to-end ownership: architecture, frontend, backend, AI gateway, deploy, and production operations.
- Outcome
- Platform running in production with feature flags, idempotent webhooks, observability, and dynamic PDF watermarking.
TypeScript
React 18
PostgreSQL
Claude
+
View project details
Rolê Junino
Digital guide for Paraiba Junino festivals, launched in June 2026 with live event discovery, curated places, and custom itinerary builder.
- Problem
- Fragmented information across social media, city channels, and messaging groups during high-demand tourism periods.
- Role
- Founder & Tech Lead with end-to-end ownership: architecture, AI-assisted execution orchestration, and production operations.
- Outcome
- Production-ready platform with cache strategy, queue workers, RBAC, and measured scalability up to ~2-3K concurrent users.
Next.js
Express
PostgreSQL
Redis
+
View project details
Research Nova
Academic AI platform for document review, technical translation, statistical analysis guidance, effect size calculators, and research management.
- Problem
- Researchers need faster writing, translation, statistical decision support, and organized project workflows without losing academic rigor.
- Role
- LLM development focused on architecture decisions, secure product flows, quality gates, and production-grade implementation.
- Outcome
- Public AI SaaS surface with enabled feature modules, authentication, onboarding, free/premium plans, and research-focused tools.
AI SaaS
LLM Dev
Arch
Security
+
View project details
RAG Knowledge Assistant
Integrated chatbot that answers domain questions from private documents, datasets, and structured knowledge using retrieval-augmented generation.
- Problem
- Teams need reliable answers from scattered internal knowledge without relying on generic prompts.
- Role
- Architecture, retrieval pipeline, chatbot integration, prompt/context strategy, and quality evaluation.
- Outcome
- Reusable assistant pattern with embeddings, chunking, context assembly, source-aware answers, and auditable LLM flows.
RAG
Chatbot
Claude
Vectors
+
View project details
Contact
Let's build something useful.
Open for backend and AI product collaborations.