Software Developer

*Populus is an amazing company where our employees stay because they love their teams and the growth opportunities. Additionally, we offer a competitive 401K match, a generous paid time off package, and Health Benefits.*

*Our mission is to provide a broad range of quality financial products and services delivered with best-in-class customer service. We work and lead with integrity, and we celebrate employees who exemplify our values. Come join our team!*

Job Summary

The Full Stack Developer is responsible for designing, developing, testing, and maintaining software applications across all layers of the technology stack, including front-end user interfaces, back-end services and APIs, and database systems. This role operates within Populus Financial Group’s IT Application Service Management organization and supports a complex environment that includes point-of-sale (POS) systems, IBM i (AS/400) back-end processing, and store-level operations across hundreds of retail locations. This position requires strong full stack development skills along with practical experience in POS infrastructure, store data retrieval, and IBM i environments, enabling immediate contribution to both new application development and ongoing operational support needs.

Major Responsibilities

• Design, develop, and maintain full stack web applications and internal tools, encompassing front-end UI, back-end APIs, and database layers, using C#/.NET, Python, JavaScript/TypeScript, and related frameworks.
• Build and maintain RESTful APIs and back-end services that integrate with POS systems, IBM i (AS/400) DB2 data sources, and third-party platforms (MoneyGram, Ingenico, Panini, bill pay providers).
• Develop and maintain front-end user interfaces using modern frameworks (React, Angular, or Vue.js); collaborate with stakeholders to translate business requirements into functional, user-friendly screens.
• Perform store-level incident inv