Senior Software Engineer

Company

Ubique Systems

Location

London Area, United Kingdom

Posted At

8/29/2025

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Description

Greetings from Ubique Systems!!!

We are looking for a Postilion Sr. Software engineer for one of our customer who has an expertise in:-

Technologies and framework experience: Java, J2EE, JSP, Spring mvc, css, PLSQL, Kubernetes, Microservice
Experience in working with RDBMS (SQL Server/ Oracle / Sybase / PostgreSQL / DB2) and working with complex SQL Queries
Experienced developing eSocket, Postilion Realtime switch, Postilion Realtime SDK, and writing multi-threaded, secure applications on the server using Java SE.
Proficiency with EFT protocols, ISO 8583 standards, EMV process, cryptographic hardware modules and tokenization
Experienced in developing/testing/supporting online transaction processing and transaction switching
Worked with Network Schemes certification like Visa, Mastercard, Amex
Worked with Visa/Mastercard Scheme simulators (MDS/VTS/Paragon/FinSim/T3)
Experience in developing platform/server side components/APIs
Experience into DevOps

Employment type:-Contract.

It would be remote working within UK only.

Note:-Only apply if you have valid visa in the EU Region, Sponsorship will not be given.