Point of Sale Client Platform Engineer

Responsibilities:

• Design, develop, and test/debug client UI and client framework code in Vue 3 and Type Script, and mentor the team doing the same

• Design with other developers in mind – both the internal team and the retailer, partner, and services engineers who extend the platform from outside

• Own and extend the client extensibility model: dependency injection and decorator-based registration, plugin loading, UI slot injection, and the base/TGCS/partner/customer configuration merge chain

• Maintain backward compatibility for plugins and customizations built against earlier framework versions

• Publish versioned shared packages consumed by other teams, with real semantic-versioning and deprecation discipline

• Keep two UI generations shippable at once, migrating the legacy Dojo layer incrementally rather than by flag day

• Extend the device integration layer – scanners, scales, printers, payment terminals, cash recyclers, customer display – including the mock device harness that lets the full client run on a laptop

• Maintain the client release train: hybrid Maven/npmbuilds,monorepopublishing, Jenkins multi-branch pipelines across the framework dependency chain, and constrained or air-gapped customer environments

• Own client-side quality: unit andcomponenttests under a coverage gate, and a browser-automated BDD suite that gates the build

• Write and defend architecture decision records,component analyses, and solution designs; represent the client stack at the Architecture Review Board

• Maintain the client Self-Enablement Guide and generated extension catalogs, and serve as a technical interface to key technology partners

• Perform unit and functional tests of product features, and resolve unit, functional, and customer- or partner-reported defects across supported release lines

• Provide reasonable estimates, meet deliverables whileassistingthe team, and enable the team to meet their KPIs

• Use good programming patterns, call out anti-patterns, and handle accelerating change in pursuit of more innovative solutions

• Bachelor’s degree in computer science or equivalent experience

• Software Engineer III: 5+ years of professional web development experience. Software Engineer IV: 9+ years of full-stack web development experience, particularly client side

• Strong analytical and Type Script/OO programming skills, including generics, declaration files, and strict-mode discipline

• 2+ years in Vue 3 or an equivalent moderncomponentframework, at depth: reactivity semantics, routing, and centralized state management

• Experience building shared libraries or frameworks that other teams consume – not only end-user features

• Working knowledge of a dependency-injection / inversion-of-control container (InversifyJS,tsyringe, Angular DI, Spring, or similar) and decorator-based registration; understanding of lifetimes and resolution order

• Deep technical skills in web development technologies (HTML5, JavaScript, Type Script, SASS, XML/JSON, Vue.js), including module-system fluency (ESM, AMD, UMD) and modern build tooling such as Vite

• Unit testing as a default habit, plus browser automation with at least one of Playwright, Cypress, or Selenium – including the ability to diagnose a flaky test rather than retry it

• Demonstrated ability to work productively inside a large legacy code base without rewriting it

• Experience developing in a Java-based environment, including enterprise/web-based content, sufficient to debug a service you do not own anddeterminewhere a defect actually lives

• REST andOpenAPIcontract thinking, including a working definition of a breaking change

• Comfort in CI/CD: pipelines, containerized builds, artifact registries, dependency resolution,lockfiles, and transitive version conflicts

• Proficiency with Git at team scale:…