# C ++ Developer

**Company:** [Sapsol Technologies Inc](null/companies/d2sRa2JYB9JPF5bL4MU2Yu.md)
**Location:** Remote
**Workplace:** remote

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## Description

**Expected Duration**: Initial contract term is expected to be **one year**, with extension opportunities available based on project timelines, business priorities, and contractor performance.

**Rate:** Commensurate with experience, technical qualifications, and demonstrated expertise in C/C++, legacy platform modernization, and database migration. **When submitting candidates, include your proposed bill rate requirements.**

**Supplier Submission Requirements:** Qualified candidate resumes, proposed bill rates, and experience qualifications should be submitted in Fieldglass no later than **September 25, 2026** for initial consideration. Early submissions are encouraged as candidates may be reviewed on a rolling basis.

**About the Role**

We are seeking a highly experienced **Senior Systems Engineer - C/C++ Full Stack Developer** to lead a strategic modernization initiative for a mission-critical Store Management System that has evolved over more than 30 years.

The program's primary objective is the transformation of a proprietary **EZC file-based database platform** into a modern **PostgreSQL relational database architecture**. The legacy environment supports a large ecosystem of interconnected applications, system programs, libraries, batch processes, utilities, and business services that have accumulated decades of business logic, customizations, ad hoc enhancements, and non-standard implementations.

This role requires a hands-on engineering leader capable of analyzing complex legacy systems, reverse engineering undocumented functionality, designing modern architectures, and driving technical transformation while ensuring operational stability and business continuity.

**Key Responsibilities**

**Legacy System Modernization**

-   Lead the modernization of a 30+ year-old Store Management System platform.
-   Analyze and reverse engineer proprietary EZC file structures and data access patterns.
-   Develop migration strategies from EZC to PostgreSQL with minimal business disruption.
-   Identify and remediate technical debt, legacy dependencies, and non-standard implementations.
-   Design transition architectures supporting phased migration and coexistence of legacy and modern platforms.

**Software Engineering**

-   Design, develop, and maintain enterprise-grade solutions using C and C++.
-   Refactor and modernize large legacy codebases while preserving critical business functionality.
-   Develop APIs, middleware, integration services, and modernization frameworks.
-   Troubleshoot complex applications, database, and infrastructure issues.
-   Drive code quality, performance optimization, maintainability, and scalability initiatives.

**Database Architecture & Migration**

-   Design and implement PostgreSQL database schemas, indexing strategies, and performance optimization solutions.
-   Convert proprietary file-based data models into efficient relational database designs.
-   Develop ETL, conversion, reconciliation, and validation processes.
-   Ensure data integrity, auditability, and migration accuracy.
-   Optimize high-volume transactional and batch-processing workloads.

**Enterprise Systems Integration**

-   Analyze dependencies across applications, libraries, services, utilities, interfaces, and batch jobs.
-   Collaborate with architects, business analysts, infrastructure teams, and application owners.
-   Develop integration solutions that support both legacy and modern environments.
-   Produce technical documentation, architecture diagrams, and migration plans.

**AI-Assisted Development**

-   Leverage AI-powered engineering tools to accelerate software delivery.
-   Utilize AI tools for legacy code analysis, reverse engineering, dependency discovery, automated documentation, test generation, and modernization activities.
-   Validate, optimize, and production-harden AI-generated code and architectural recommendations.
-   Establish best practices and governance for responsible AI-assisted software development within enterprise environments.

**Required Qualifications**

-   Bachelor’s degree in computer science, Engineering, Information Systems, or equivalent experience.
-   10+ years of software engineering experience.
-   8+ years of hands-on C/C++ development experience.
-   Extensive experience working with large-scale legacy systems and mission-critical enterprise applications.
-   Strong experience with relational database design.
-   Proven experience with database modernization and migration projects.
-   Deep understanding of software architecture, systems programming, and integration patterns.
-   Experience troubleshooting highly complex, distributed application environments.
-   Strong analytical and problem-solving skills.
-   Demonstrated experience applying AI-assisted development tools within enterprise software engineering environments.

**Preferred Qualifications**

-   Experience with proprietary, hierarchical, or file-based database platforms.
-   Experience in retail, store management, point-of-sale (POS), inventory management, merchandising, or supply chain systems.
-   Experience with high-volume transaction processing systems.
-   Experience modernizing legacy C/C++ platforms into service-oriented or API-driven architectures.
-   Familiarity with cloud technologies and modernization practices.
-   Experience leading technical teams and mentoring engineers.
-   Knowledge of DevOps, CI/CD, automated testing, and application observability.

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**Required Technical Skills**

-   C
-   C++
-   SQL

**Preferred Technical Skills**

-   Claude Code
-   Python

-   PostgreSQL
-   EZC