What are the responsibilities and job description for the POS Developer (4690 / C / C++) position at Kitestring?
Kitestring is a 20 -million-dollar company with 100 associates and growing. We are a 25 year old start up in Northwest Arkansas. We provide technical expertise to various clients delivering innovations that improve how customers shop and the enterprise operates. At Kitestring Technical Services, our mission is to share our collective knowledge to positively impact our employees, clients, and communities. Our vision is to be the most trusted partner in technology consulting. We believe people enable technology and vice-versa which is why we are in the business of both. We persistently challenge the barriers to diversity, inclusion, and empathetic cooperation.
Our Core Values are Transparency, People Driven, Empowered, Quality focused and socially responsible. Our values direct our company in how we do business and enhance the lives of our employees. Do our values speak to you?
About the Role
We are seeking a highly skilled POS Developer with strong experience in IBM 4690, C, and C to join our retail technology team. This role is ideal for someone passionate about building and maintaining robust, customer-facing retail solutions that enable seamless in-store transactions. You will work closely with product managers, QA, and cross-functional engineering teams to develop new features, enhance existing POS functionality, and ensure stability within high-transaction environments.
Key Responsibilities
Design, develop, and maintain POS applications using IBM 4690, C, and C .
Troubleshoot and resolve defects in POS environments with high availability and transaction volume.
Develop new modules and support enhancements for store system integrations.
Work with cross-functional teams including Product, QA, and Infrastructure to implement technical requirements.
Support POS configuration, deployments, and release activities.
Optimize system performance to meet industry-standard response times and reliability.
Create and maintain technical documentation, including design specs and support guides.
Provide production support as needed for critical retail systems.
Required Skills & Qualifications
3–7 years of software development experience, with a focus on POS systems.
Hands-on experience with IBM 4690 OS and POS platforms.
Strong programming experience in C and C .
Solid understanding of retail store operations, particularly POS transaction flows.
Experience debugging POS peripherals (scanners, printers, payment devices, etc.).
Familiarity with version control tools (Git, SVN, etc.).
Strong analytical and problem-solving skills.
Excellent communication and documentation abilities.
Preferred Qualifications
Experience in modernizing legacy POS systems or migrating from 4690 environments.
Knowledge of retail payment integrations, EFT, EMV, or PCI compliance.
Exposure to SCO (Self-Checkout), POS, or front-end store systems.
Experience collaborating with offshore/onshore development teams.
Why Join Us?
Opportunity to work on mission-critical retail technology used across high-volume environments.
Collaborative, people-centered culture with room for growth.
Competitive compensation and benefits package.
Chance to influence next-generation POS modernization initiatives.
