Moacir Mota
@moacirmota
Software engineer specializing in API-first microservices, event-driven systems, and cloud reliability.
What I'm looking for
I’m a Software Engineer with 7+ years of experience building high-performance backend architectures, with a strong focus on API-First design, event-driven systems, and cloud solutions.
At Efí Bank, I architect and optimize scalable microservices for mission-critical financial services, ensuring high reliability for thousands of daily transactions. I act as a technical reference for financial business rules, drive code reviews and mentorship, and collaborate cross-functionally to align engineering work with business needs.
I design and deliver RESTful APIs using OpenAPI (Swagger) with TypeSpec, applying Clean Architecture and SOLID principles to improve maintainability and scalability. I also standardize API versioning and lifecycle management, automate testing with Jest and integration tests (n8n and custom solutions), and build CI/CD pipelines in GitLab.
My work extends to event-driven integrations (AWS SQS and SNS) and observability with OpenSearch and Elastic Kibana. I’ve driven measurable impact, including reducing customer support tickets by 30% via self-service dispute initiation, cutting manual fraud analysis by 70–80% through automation, and improving processing time from hours to milliseconds through AWS SQS polling redesign.
Experience
Work history, roles, and key accomplishments
Software Engineer
Efí Bank
May 2021 - Present (5 years 2 months)
Designed and optimized scalable, high-performance microservices for a financial technology ecosystem, building API-first REST services and event-driven integrations. Led improvements across testing, CI/CD, observability, and automated business workflows that reduced manual operations and customer support volume.
Data Scientist
EcoEnviroX
Oct 2020 - May 2022 (1 year 7 months)
Performed exploratory data analysis and built deep learning and machine learning models (including data transformation and missing/out-of-context handling) to predict metallurgical coke quality variables. Developed React-based applications and microservice APIs to serve and integrate deployed models.
Founder
MTech/OuroPreto
Apr 2018 - Mar 2022 (3 years 11 months)
Developed full-stack web applications using ReactJS and Node.js and provided consulting for projects using VBA, Excel, and machine learning/deep learning. Delivered on-demand solutions through applied end-to-end development.
Education
Degrees, certifications, and relevant coursework
Universidade Federal de Ouro Preto
Bachelor, Metallurgical Engineering
2021 -
Bachelor's studies in Metallurgical Engineering at Universidade Federal de Ouro Preto starting in April 2021.
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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