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Senior Software Engineer with end-to-end experience building applications, APIs, internal platforms, automations and applied AI solutions. Strong background across Python, Go, Node.js/TypeScript, cloud engineering, Docker/Kubernetes and CI/CD—delivering measurable improvements in reliability and operational performance. Worked on critical financial infrastructure systems combining backend and frontend development with operational automation and applied AI (RAG/chatbots, workflow automation and data pipelines). My work has driven significant cost savings, reduced MTTR, and helped standardize environments across large Linux fleets.…Senior Software Engineer with end-to-end experience building applications, APIs, internal platforms, automations and applied AI solutions. Strong background across Python, Go, Node.js/TypeScript, cloud engineering, Docker/Kubernetes and CI/CD—delivering measurable improvements in reliability and operational performance. Worked on critical financial infrastructure systems combining backend and frontend development with operational automation and applied AI (RAG/chatbots, workflow automation and data pipelines). My work has driven significant cost savings, reduced MTTR, and helped standardize environments across large Linux fleets.

Antonio Costa

Software Engineer, Full Stack Developer, DevOps Developer, +2

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Senior Software Engineer with end-to-end experience building applications, APIs, internal platforms, automations and applied AI solutions. Strong background across Python, Go, Node.js/TypeScript, cloud engineering, Docker/Kubernetes and CI/CD—delivering measurable improvements in reliability and operational performance. Worked on critical financial infrastructure systems combining backend and frontend development with operational automation and applied AI (RAG/chatbots, workflow automation and data pipelines). My work has driven significant cost savings, reduced MTTR, and helped standardize environments across large Linux fleets.…Senior Software Engineer with end-to-end experience building applications, APIs, internal platforms, automations and applied AI solutions. Strong background across Python, Go, Node.js/TypeScript, cloud engineering, Docker/Kubernetes and CI/CD—delivering measurable improvements in reliability and operational performance. Worked on critical financial infrastructure systems combining backend and frontend development with operational automation and applied AI (RAG/chatbots, workflow automation and data pipelines). My work has driven significant cost savings, reduced MTTR, and helped standardize environments across large Linux fleets.

Available to hire

Senior Software Engineer with end-to-end experience building applications, APIs, internal platforms, automations and applied AI solutions. Strong background across Python, Go, Node.js/TypeScript, cloud engineering, Docker/Kubernetes and CI/CD—delivering measurable improvements in reliability and operational performance.

Worked on critical financial infrastructure systems combining backend and frontend development with operational automation and applied AI (RAG/chatbots, workflow automation and data pipelines). My work has driven significant cost savings, reduced MTTR, and helped standardize environments across large Linux fleets.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

Portuguese

Fluent

English

Advanced

Spanish; Castilian

Intermediate

Work Experience

Senior Software Engineer at Núclea (formerly CIP)

February 1, 2023 - Present

Developed AI Diligence, automating due diligence questionnaires sent by banks and clients, reducing manual effort across 16+ departments and generating an estimated BRL 400K/year in savings. Built SARA, an internal AI chatbot integrating Confluence knowledge bases with department-specific context. Implemented Python and Shell Script automations to retransmit/reprocess files in R2C3/PCR ecosystems (including RRC0019 and ARRC0022), reducing manual intervention and accelerating recovery from hours to minutes. Created a micro-batch operational metrics pipeline extracting data from production transactional databases at ~5-minute intervals into an analytical DB with Grafana dashboards for operational, business and infrastructure decisions across receivables registration, card settlement and boleto processing. Built a self-healing API Gateway in Go deployed on AWS EKS, reducing incident resolution time by ~80%.

Infra/Cloud Analyst at Certsys Tecnologia da Informação

February 1, 2022 - February 1, 2023

Automated Zabbix Agent deployment across 1,000+ Linux hosts using Ansible, CI/CD and operational automation. Developed a full-stack internal incident portal with NestJS, React.js and PostgreSQL deployed on AWS, contributing to an estimated ~40% reduction in MTTR. Built RPA and cybersecurity automation solutions with Python, FastAPI and Playwright, deployed as containerized AWS services, reducing manual operations from minutes to seconds and eliminating third-party licensing costs.

Systems Development Analyst at AGF Equipamentos

July 1, 2021 - January 1, 2022

Owned end-to-end technology responsibilities across infrastructure, VPN, operational support, systems development and process automation for the headquarters and two branches. Developed a Python RPA for Alibaba product analysis, reducing manual work from 40 minutes to 3 minutes and generating an estimated USD 60K/year in savings. Built a full-stack internal business management system with Node.js, Express, TypeScript, AWS EC2 and RDS, including relational modeling, APIs and collaboration with non-technical stakeholders.