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Principal Full Stack Engineer

GRUBBRR

Boca Raton, FLPosted Oct 8, 2026

Job description

GRUBBRR is seeking a senior full-stack software engineer to help expand and build our next-generation suite of self-ordering applications. We strive to build Cloud-native, consumer-first, UX-friendly kiosks and online applications across a variety of verticals supporting enterprise clients and small businesses. Behind our consumer applications, we integrate and interact with a deep stack of payment, loyalty, and POS systems.

Our challenge and goal is to provide a frictionless experience for our end-consumers and easy-to-use management capabilities for our customers to work with the variety of systems that already power their businesses. Experience Required: ● Minimum 5 years of relevant experience ● Proficient with Server-side development (.

Net Core preferred) ● Proficient with serverless implementation such as Cloud functions ● Proficient working with message broker technology ● Proficient with data modeling ● Proficient with HTML5/CSS3/Javascript (ES5/ES6) ● Proficient with a component-based architecture framework (i.e React, Svelte, Angular) ● Proficient with SQL (such as MSSQL) and document-based (Azure NoSQL Cosmos or equivalent) database technologies ● Good understanding of Event-Driven Microservices Architecture ● Experience leading a small team of developers as technical lead ● Proficient in utilizing Git for merging, reverting and otherwise managing multiple repositories ● Proficient in code-sharing techniques such as maintaining private NPM packages, monorepos, etc ● Familiarity and comfort with setting up deployment and build pipelines ● Experience working in a design system or shared component ecosystem ● Experience working with / building offline-first web applications ● Experience building shared, modular systems to support and be consumed by many applications ● Experience working with unique hardware/browser constraints ● Experience with designing SaaS products and cloud infrastructure ● Experience with Mobile platform/app development Key Responsibilities: ● Developing architecture, UIs and backend services for our products ● Extending our current toolchain and shared libraries for new use-cases and custom applications ● Reviewing code and providing guidance/feedback to other team members to maintain clean, high-quality codebases ● Collaborating with architecture team to design and develop various features

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