Senior Software Engineer – Back End

Job Description

Own and evolve the payment-terminal platform behind kiosks, including re-architecting it into a modular SDK. Implement new terminal integrations and ensure correctness in money movement.

Requirements: Candidates should have 6+ years of back-end engineering experience with strong Java skills and a solid understanding of distributed systems design. Experience with payment-terminal integration and low-level device communication is also required.

Key Skills: Java, OOP, Distributed Systems Design, Plugin Architectures, Serial Communication, USB Communication, Payment Integration, PCI-DSS, Technical Leadership, EMV, ISO 8583, Cloud APIs, Debugging, Tokenization, TLS, State Machines

Benefits: Health Benefits, Paid Time Off, Retirement, Education, Learning & Development