Software consulting
Development and evolution of backends that move money and have to stay up: credit, payment settlement, benefits and processing at scale, from the API contract to the production environment.
Hands-on work in the code and the architecture, inside the client's team.
Java and Kotlin services with Spring Boot, delivered with tests, observability and cloud deployment (AWS or Azure, Docker and Kubernetes).
Clear, versioned contracts and integration over HTTP, Kafka, IBM MQ, SNS/SQS or Azure Service Bus, with idempotency and retries designed for real failures.
Query tuning guided by the execution plan, indexes and modeling in DB2, PostgreSQL and MongoDB, and removal of bottlenecks such as N+1.
Settlement, reconciliation, payroll-deductible credit (crédito consignado) and benefits: workflows that demand precision, traceability and fault tolerance.
Numbers from recent projects.
14 min → 7 s
critical reconciliation query on an interbank card settlement platform
< 3 s
query with an N+1 on the same system, without creating an index
No manual approval
Dataprev duplicate error when registering payroll-deductible loans, now handled automatically
~160 million orders/month
order events with end-to-end tracing, multi-region fanout and alerts on the golden signals
8 h → 30–90 min
document audit in an ISO 9001 SaaS with OCR and AI
Alpha Prime Gestão ECV · ISO 9001 document management and audit SaaS for accredited vehicle inspection companies, developed by DEVANDRADE TECH. In production with recurring revenue: Kotlin and Spring Boot backend, Angular web app, iOS and Android apps, document validation with OCR and AI, and security aligned with LGPD (the Brazilian data protection law).
Open Source & Community
Active contributions to Rust open source projects for AI infrastructure and autonomous coding agents, delivering native integrations, observability, and state persistence.
82
Proposals opened and merged across ai-memory and ai-usagebar.
255
Code shipped in Rust: concurrency fixes, testing suites, and tooling.
+10,4k / -1,2k
Lines added and removed across architectural enhancements.
Long-term memory solution for coding agents (Claude, Codex, OpenCode, Agy), providing cross-session persistence, structured handoffs, and semantic search.
Native status bar and system tray app for real-time monitoring of AI consumption quotas across multiple providers (OpenAI, Anthropic, Claude, Kimi, MiniMax).
DEVANDRADE TECH is led by Vinícius Andrade, a backend developer based in Campinas, Brazil, with stints at iFood and Núclea. Currently working on payroll-deductible credit and on the settlement of a benefits payment scheme, and partner and technical lead of Alpha Prime.
Also an open-source contributor: 68 merged PRs across two Rust projects for AI infrastructure, ai-memory and ai-usagebar.
For a project or an introductory conversation, write to contato@devandrade.tech.
Campinas, Brazil · remote work
