Legacy modernization
Incremental modernization of long-lived systems without unnecessary rewrites or avoidable production risk.
Software engineering for complex systems
Build, modernize, debug, and maintain production-critical software.
CoreGridix Systems helps companies deliver reliable engineering work across C/C++, systems-level software, backend components, integrations, diagnostics, and long-term product maintenance, with broader support for Java, C#/.NET, Android, web/API integrations, QA, tooling, and maintenance through a trusted engineering network.
Services
Practical engineering delivery for teams that need reliable implementation, investigation, integration, and long-term technical ownership.
Production debugging
Investigation of crashes, regressions, performance problems, unstable behavior, and hard-to-reproduce failures.
C/C++ systems development
Systems-level components, libraries, tooling, integration layers, networking, concurrency, and performance-sensitive software.
Backend and service integration
Backend components, APIs, service integrations, automation, diagnostics, and internal engineering workflows.
Broader software delivery
Support for Java-based systems, C#/.NET applications, Android development, web/API integrations, QA, tooling, and maintenance through a trusted engineering network.
Technical audits
Codebase review focused on correctness, architecture, maintainability, failure modes, and delivery risk.
Expertise
CoreGridix combines deep systems engineering experience with a broader trusted network for adjacent software needs.
- C/C++ and systems engineeringProduction-critical components, legacy systems, performance-sensitive code, and maintainability-focused development.
- Networking and multithreadingTCP/IP, UDP, sockets, concurrency, diagnostics, and reliability-sensitive communication flows.
- Payments and transaction systemsPOS terminal software, EMV/contactless flows, Electronic Cash Register integration, and acquirer/host communication.
- Real-time and streaming softwareAudio/video streaming, real-time communication, latency-sensitive paths, and production diagnostics.
- Security and cryptographic toolingEncryption/decryption workflows, secure content packaging, signing/verification, hashing, and OpenSSL-based integration.
- Broader development supportJava systems, C#/.NET applications, Android applications, web/API integrations, QA, tooling, and maintenance.
Selected Engineering Experience
Representative examples of engineering work and domain experience. Client names and proprietary details are not disclosed without permission.
Payments
Payment transaction processing platform
Implemented and maintained payment transaction flows for POS terminal environments, including EMV/contactless processing, Electronic Cash Register integration, and communication with acquirer and host systems. The work covered transaction state handling, protocol-level message exchange, device-to-host communication, error handling, and production-critical edge cases in payment processing flows.
Security
Encryption library for secure data exchange
Implemented a C/C++ encryption library interface for secure file and text encryption, message encryption/decryption, password-based encryption flows, symmetric-key encryption, and digital signing/verification. The library exposed application-facing APIs for secure content packaging, authentication metadata, key-based workflows, message identity handling, encoding utilities, file hashing, and OpenSSL-based cryptographic operations.
Streaming
Real-time audio and video streaming
Implemented real-time communication components for audio and video streaming with attention to latency, continuity, and runtime stability. The work included network communication, buffering strategy, stream handling, synchronization concerns, diagnostics, and performance-sensitive behavior needed for interactive communication scenarios.
Telecom
4G/5G network traffic parsing and analysis
Implemented a network traffic parser and analysis tool for high-load 4G/5G communication scenarios. The system processed traffic across multiple protocols, extracted packet-level and session-level information, detected packet loss and abnormal behavior, generated analytical charts, and supported investigation of network quality, bottlenecks, and improvement opportunities under load conditions.
Legacy C/C++
Modernization of a long-lived engineering application
Supported modernization of a long-lived C/C++ engineering application by improving maintainability, stabilizing build and runtime behavior, debugging fragile components, and applying incremental refactoring while preserving existing production workflows.
Need engineering support for a complex system?
Contact CoreGridix Systems to discuss modernization, debugging, integration, or long-term development support.