Senior Full Stack Engineer, Oracle Xstore & PaymentsFoot Locker, Inc. • New York, New York, United States
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Senior Full Stack Engineer, Oracle Xstore & Payments
Foot Locker, Inc.
- New York, New York, United States
- New York, New York, United States
Über
We’re seeking a Senior Software Engineer with deep expertise in Oracle Xstore and EFTLink payment processing to design, build, and support mission‑critical POS capabilities. You will lead technical designs, integrations, and optimizations across FreedomPay and Adyen (and other payment gateways as needed), ensuring compliance, resilience, and world‑class performance at the lane.
You’ll collaborate cross‑functionally with Architecture, Information Security, Infrastructure/Networking, Compliance, Operations, and Vendor partners to ship features that measurably improve checkout speed, authorization success rates, and reliability.
This position is ideal for engineers who thrive in fast‑paced retail environments, enjoy solving complex technical challenges, and can deliver high‑quality solutions that support thousands of store associates and customers.
Responsibilities
POS Payments : Design and implement payment flows within
Oracle Xstore (v23+)
including card present, contactless, wallet, gift, split‑tender, returns, and others.
Mobile Payments (In‑Store) : Implement and optimize SoftPOS and mPOS solutions and app‑to‑app payment flows integrated with Oracle Xstore and EFTLink.
Integrate & Optimize Gateways : Build and optimize integrations with
FreedomPay
and
Adyen
(transaction routing, tokenization, dynamic currency conversion, fallback, retries, and settlement reconciliation).
Security & Compliance by Design : Ensure solutions align to
PCI DSS ,
EMV ,
P2PE , tokenization, and
SRED
standards; partner with Security and Compliance to pass audits with zero findings.
Reliability & Observability : Instrument payment flows end‑to‑end (POS payment device gateway) with robust logging, metrics, tracing, and alerting; reduce false declines and timeouts.
Performance Engineering : Profile and improve transaction latency at the lane; optimize network time and device responsiveness; tune retry/backoff and circuit‑breaking strategies.
Vendor & Store Partnership : Collaborate with device vendors (Ingenico/Verifone or similar), gateway TAMs, and Field Ops; write playbooks and run pilots and phased rollouts.
Quality at Scale : Establish automated test strategies (unit, integration, and simulated payment device tests), canary rollouts, and safe rollback plans across multi‑store deployments.
Modernize & Migrate : Contribute to platform modernization (API‑first, microservices, containerization where appropriate) while maintaining compatibility with Xstore extensions and orchestration layers.
Mentor & Lead : Provide technical guidance, code reviews, and best practices for POS and payment development across the team.
Qualifications Minimum Requirements:
Minimum 5 years
software engineering experience with
Oracle Xstore
(back office and POS) and
EFTLink
including extension development, services, and deployment.
Hands‑on experience implementing
SoftPOS
in HandHeld devices integrated with Oracle Xstore and EFTLink, app‑to‑app flows and large‑scale production rollout across store fleets.
Hands‑on integration
with at least one of
FreedomPay
or
Adyen
gateways for in‑store (card‑present) payments; strong grasp of gateway configuration, routing, reconciliation, and settlement flows.
Deep knowledge of
payment fundamentals : card‑present transaction lifecycle, EMV kernel flows, tokenization, PAN handling, PCI scope reduction, P2PE, offline/stand‑in, and chargeback handling.
Strong proficiency in
Java
(Xstore), plus experience with RESTful services, message queues, and integration patterns.
Experience with
payment devices
(e.g., Ingenico/Verifone) including firmware/config, terminal management, and connectivity modes.
Proven experience with
observability
(logs/metrics/traces),
CI/CD , and production support at scale (thousands of registers).
Excellent collaboration skills with Operations, Networking, and Security; clear communication and documentation.
Preferred Requirements:
Experience with both
FreedomPay and Adyen
(including routing, digital wallets, store‑and‑forward, dynamic routing rules).
Experience with
device management
(MDM/terminal management systems), certificate lifecycle, and key injection processes.
Exposure to
tax, promotions, pricing
integrations and
returns/exchanges
flows across OMS/ERP.
Scripting for ops automation (e.g.,
Python ,
PowerShell
or
Bash ).
Prior work with high‑availability designs for
multi‑tenant
payment topologies.
Benefits The annual base salary range is $110,000 - $130,000. This range represents the anticipated low and high end of the salary for this position. This role is also eligible to receive short term incentives that align with individual and company performance. Salary will be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, and alignment with market data. Salary is one component of the Foot Locker, Inc. total compensation package, which includes the below.
Foot Locker Benefits
Employee Discount
Paid Time Off
Medical | Dental | Vision Coverage
401(k) | Roth 401(k)
Paid parental leave
Life Insurance
Flexible Spending Account
Opportunities for Advancement
Tuition Reimbursement for Qualified Courses
Strong Company Culture
Employee Resource Groups
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Sprachkenntnisse
- English
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