Merchant Services Developer Jobs

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2d ago

Payment Integration Developer

Liberty Software Dallas, TX

Dallas, TX

2d ago

Full time Backend Developer API Integrations APIs

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Job Description

Liberty Software is seeking a Payment Integration Developer to own and advance Liberty's credit card processing, payment terminal, and benefit card integrations for pharmacy POS, onsite in Dallas, TX.

Responsibilities

Design, implement, and maintain integrations with payment processors such as triPOS/Worldpay and other emerging gateways
Build and support OTC medical benefit card integrations (NationsBenefits, OTC Network, Solutran, Soda Health)
Implement card tokenization, consent management, and stored credential workflows (MIT/CIT classification)
Maintain ongoing compliance with card brand requirements (Mastercard, Visa) including surcharge rules, merchant data mandates, and L2/L3 data standards
Troubleshoot and resolve payment processing issues across production pharmacy environments
Collaborate with Product and QA to define acceptance criteria and validate payment workflows
Document integration specifications, API contracts, and compliance requirements
Monitor payment industry changes and proactively recommend updates to maintain compliance

Requirements

3+ years of software development experience with a focus on payment or financial integrations
Bachelor's degree in Computer Science, Software Engineering, or equivalent experience
Hands-on experience integrating with payment gateway APIs (Worldpay/triPOS, Stripe, Square, Adyen, or similar)
Strong understanding of PCI-DSS compliance requirements
Proficiency in C# / .NET (Liberty's primary stack)
Experience with RESTful API design and consumption
Experience with semi-integrated payment solutions (triPOS specifically) preferred
Familiarity with healthcare or pharmacy payment workflows (copays, HSA/FSA cards, OTC benefit cards) a plus
Knowledge of card tokenization standards and stored credential frameworks beneficial
Experience with SQL Server and relational database design preferred
Exposure to Mastercard/Visa compliance programs and certification processes a plus
Prior work in a small-to-mid-size software company desirable

Technologies

triPOS
Worldpay
Stripe
Square
Adyen
C#
.NET
RESTful API
SQL Server

Benefits

100% employer-paid medical and life insurance for employees, with optional dental and vision coverage at no cost
Family coverage available with Liberty contributing 50% of the premium
Fully vested 401(k) with employer match
Employer contributions to Health Savings Accounts (HSA)
Generous paid time off and paid holidays
Tuition reimbursement and continuing education support
Adoption expense reimbursement
Dependent Care Flexible Spending Account (FSA) for tax savings on childcare
Confidential counseling resources for mental health, financial planning, and more, via Optum EAP
Fully stocked breakroom

Please note: This role is based in our Southlake, TX office. Liberty Software does not offer employment sponsorship opportunities for this role (e.g., H-1B, OPT, or other work visa status).

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