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POS Developer – Legacy Modernization

Momento USA LLCAlameda, CA🇺🇸United StatesPosted 17 Jul 2026

Quick Overview

Work Type
On Site
Level
Mid Senior

Job Description

Momento USA is a global technology consulting, talent acquisition and creative development firm that addresses clients most pressing needs and challenges. We currently looking for POS Developer – Legacy Modernization our client location based on Pleasonton, CA Onsite. Please see the job description below for your reference. 
 
POS Developer – Legacy Modernization
Pleasonton, CA Onsite
 
We are seeking an experienced POS Developer with expertise in both legacy and modern retail POS technologies.
 
Required Skills
•    Experience with Legacy Toshiba or ACE POS applications.
•    Hands-on experience with POS Terminals, Self-Checkout (SCO), and Mobile POS.
•    Strong proficiency in Java.
•    Experience with Microservices Architecture and React.
•    Experience building AI-enabled greenfield applications.
Preferred Experience
•    Pin Pad Controller (PPC) and ACE Pin Pad Interface
•    Ingenico payment devices
•    Store Integrator (AEF & POSBC) and SI Framework
•    Java Swing, XML, MVC
•    Self-Checkout (SCO) applications
•    Strong understanding of retail POS modernization and integration.
 
Note: Momento USA is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.  

Note: Momento USA is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, gender identity, national origin, age, protected veteran status, or disability status.

Skills

Microservices
Java
React

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