Alef de Oliveira Inacio
Alef de Oliveira Inacio

Senior Software Engineer / Technical Lead

Open to offers · Member since 16 Aug 2026
Message
Location
Goiânia, Brazil
Desired salary
Unspecified
Work preference
Remote Only / Contract
Experience level
Lead

About

Professional summary

I am a Senior Software Engineer and Technical Lead with more than 10 years of experience designing, architecting, and delivering enterprise Java systems. My background includes retail, distribution, telecommunications, educational technology, and clinical systems.

I specialize in Java, Spring Boot, microservices, distributed systems, and cloud-native architecture. I build scalable, observable platforms using AWS, Azure, Kubernetes, Docker, Terraform, CI/CD pipelines, and event-driven integrations.

At TOTVS, I have led backend architecture for a WMS SaaS platform supporting thousands of distribution centers, stores, and clients. I have modernized legacy monoliths into independently deployable microservices using Clean Architecture, DDD, and CQRS.

I have delivered applied AI solutions, including demand forecasting and LLM-based logistics insights, while improving operational performance and reducing stockouts. I also focus on reliability through messaging, caching, monitoring, automated testing, and database optimization.

As a technical leader, I work across multidisciplinary teams, establish engineering practices, and help teams deliver software faster and with lower operational risk. I contribute to both backend systems and frontend tools built with Angular and React.

I am based in Goiânia, Brazil, speak native Portuguese and C1 English, and am open to remote B2B contract opportunities worldwide.

Skills

24 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Senior Software Engineer / Technical Lead TOTVS

I lead backend architecture for a WMS SaaS platform built with Java and Spring Boot microservices, supporting operations across approximately 5,000 distribution centers and stores. I modernize legacy monoliths into cloud-native services using Clean Architecture, Domain-Driven Design, CQRS, and independently isolated releases.

I delivered AI-driven demand forecasting modules and LLM-based logistics insights, reducing stockouts by 12% and improving demand-planning efficiency by 30%. I built RabbitMQ integrations processing around 500,000 messages daily with zero data loss, implemented Redis caching, and optimized Oracle and PostgreSQL procedures to improve performance.

I established CI/CD and observability practices using Docker, Kubernetes, Terraform, Azure DevOps, ELK, Prometheus, Grafana, and AWS CloudWatch. These initiatives reduced release cycle time by approximately 90%, improved incident detection, and raised automated JUnit test coverage from 0% to about 90%.

I also contribute to Angular and React applications for internal tooling and customer-facing dashboards, helping deliver scalable ERP-WMS integrations for a platform serving roughly 20,000 clients, stores, and distribution centers.

Technical Support Analyst Senac GO

I provided technical support for educational systems and IT infrastructure serving hundreds of users. I diagnosed and resolved software, hardware, and user-access issues to maintain reliable daily operations.

I supported end users and helped ensure the availability of technology services across the organization. My work strengthened my troubleshooting, communication, and IT operations skills.

IT Assistant Centro de Imunologia de Transplantes do Estado de Goiás

I maintained and improved internal clinical systems built with Delphi and SQL. I supported system reliability and assisted with technical needs for clinical teams.

My improvements reduced manual workload and helped make internal processes more dependable. This role provided experience working with software in a healthcare-related operational environment.

Education

Learning history

Anhanguera

Postgraduate, Artificial Intelligence and Machine Learning

Postgraduate studies in Artificial Intelligence and Machine Learning.

XP Educação

Postgraduate, Software Architecture and Solutions

Postgraduate studies in Software Architecture and Solutions.

UNOPAR

Bachelor's, Systems Analysis and Development

Bachelor's degree in Systems Analysis and Development.

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