J
Julio Cesar
From Brazil
12:25 PM
(GMT-03:00)
$50/hr
or
$81,000/yr
Active over a week ago
Senior Full-stack Engineer
Software Engineer
Available for hire
Years of
experience
5+ years
Experience
level
Senior
Available
for
Full-time, Contract
Available from
28 Jun 2026
I have been doing ERP integrations using NodeJS through my carrer. I've learned business envirorment about the companies and i try to understand what is it pain and help to fix their problems.
Skills
Languages
Employment History
Full stack Engineer & Founder at
Integra Tech
Current
2024
-
Now
Worked as an independent ERP consultant, delivering on-demand integration and automation solutions for companies using Senior ERP and other business systems.
Developed ERP integrations using Node.js, React.js, Next.js, SOAP APIs and REST APIs, connecting legacy ERP systems with modern web applications and external platforms.
Built custom business rules, internal ERP routines, reports, database tables and automation workflows to support specific operational and financial processes.
Implemented data import and export routines for system migrations, ensuring consistency between SQL Server, Oracle and external systems.
Created integration layers between Senior ERP and external APIs, including invoicing and fiscal platforms such as PlugNotas, improving billing automation and reducing manual work.
Developed RPA-like automations using Senior LSP, streamlining repetitive back-office tasks and improving operational efficiency.
Worked with AWS and client-owned infrastructure to deploy and maintain integration services, APIs and web applications.
Used SQL Server and Oracle extensively for queries, data modeling, reporting, performance analysis and ERP-related customizations.
Full stack engineer at
RS Pneus
2020
-
2024
Started as ERP Product Owner, later transitioning into backend development, technical team leadership, and finally Full Stack development while mentoring junior developers.
Led the development of a mobile-first web sales platform for a tire retail company using Node.js, React.js, Prisma, Express, and Tailwind, replacing a legacy desktop system and contributing to an approximate 75% increase in sales.
Engineered high-performance integrations with Senior Sistemas using SOAP APIs and optimized direct database queries, reducing latency and improving data reliability.
Contributed to the migration from on-premise infrastructure to AWS, Docker, and Vercel, enabling remote access without VPN requirements while improving scalability and availability.
Reduced order processing time by approximately 90% through workflow automation and redesign of the sales pipeline.
Implemented secure role-based access control integrated with ERP permissions, ensuring proper data security and access segregation.
Delivered a fully responsive mobile-first experience, removing legacy system limitations and increasing adoption across sales teams.
Jr Full stack Engineer at
Livrarias Curitiba
2019
-
2020
Family-owned and well-established company with a long market presence, focused on retail and e-commerce operations with high-volume ERP-driven order automation.
Worked on development and support of integrations using C#, .NET, Java, Node.js, and Oracle SQL, implementing business rules, reporting, and enterprise data workflows.
Built and maintained integrations between Senior Sistemas / Sapiens ERP, WMS, marketplaces, and sales platforms, ensuring reliable system synchronization.
Developed data pipelines and reporting solutions using Pentaho Data Integration and Data Warehouse concepts.
Contributed to the migration of legacy integrations to a third-party platform, improving system stability and supporting knowledge transfer.
Education
Network and Computer Science at
University center of Curitiba
2016
-
2018