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ERSM Software · Eduardo Rossetti
Custom software built around your company's actual problems
solving real problems
Custom internal systems, automation, and API integrations on demand.
Technology stack
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About me
Bachelor's degree in Software Engineering from Universidade do Oeste Paulista (Unoeste), technologist in Systems Analysis and Development from the same institution, M.Sc. candidate in Computer Science at Unesp Presidente Prudente, and postgraduate student in Computer Networks at Universidade Tecnológica Federal do Paraná (UTFPR).
A multidisciplinary background that reaches beyond the framework: low-level communication protocols, infrastructure and network architecture, complex algorithms, concurrency, and transactional integrity.
A background built on mission-critical systems: real-time payments, tax and transactional integrity, and continuous availability for field operations. A track record that grounds a rigorous focus on data consistency, traceability, and predictable behavior under load.
Complete delivery with modern technologies: web applications and SaaS products, asynchronous processing through queues and events, testable code, and a database sized for growth in volume without a rewrite.
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Tell me about your caseSolutions
Three recurring situations in a company's routine, and what is done about each:
01Custom internal systems
Spreadsheet-based controls that depend on a single person?
Platforms for orders, inventory, and finance, built on the routine the team already runs, with business rules enforced in the system itself and role-based access.
- Orders and inventory
- Finance and invoicing
- Operational reporting
- Role-based access
02System automation & API integrations
Data typed twice into systems that do not talk to each other?
Integration between ERPs, storefronts, payment providers, and APIs, with asynchronous processing through queues and real-time synchronization, with no repeated data entry.
03Legacy modernization & evolution
Difficulty maintaining or adding features to legacy code?
Refactoring of slow paths and evolution of legacy systems, with new features and automated tests, without stopping operations.
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Frequently asked questions
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Contact
30 minutes, no strings attached
Scope still undefined?
Thirty minutes on WhatsApp to break the problem down. The conversation ends with an objective assessment of feasibility, timeline, and alternatives — including when the conclusion is that a new system is not necessary.
Book the 30 minutes