Location: Irving, TX
Salary: $130,000.00 USD Annually - $150,000.00 USD Annually
Description: Job Title: Senior Software Engineer - Payments
Job Location: Irving, TX 75062 (Hybrid: 3 days/week in-office)
Employment Type: Full-Time
Job Category: Software Engineering / Fintech / Cloud Development
About the Role Wellfit is expanding its payments engineering team to meet the growing demand for secure, scalable, and innovative payment solutions. We are seeking a
Senior Software Engineer with strong backend and cloud development experience, ideally with exposure to payment systems. This role will help build and maintain our payments infrastructure, integrate new payment methods, and ensure compliance with security standards. You'll join a collaborative team that values precision, security, and scalability in code-working on projects with real-world impact.
Key Responsibilities - Design, develop, and maintain backend services using .NET and Azure cloud technologies.
- Contribute to payment initiatives including:
- Expanding ACH features for practices and recurring billing.
- Enhancing card payments (authorization, capture, settlement).
- Supporting device-based payments (e.g., Tap to Pay for iOS).
- Exploring modern payment methods (e.g., network tokens, bank verification).
- Drive secure coding practices and ensure proper handling of sensitive financial data.
- Modernize microservices for improved scalability and throughput.
- Collaborate with architects, engineers, and product stakeholders to align technical solutions with business needs.
- Address technical debt and build resilient systems to support increasing transaction volumes.
Qualifications Required: - Bachelor's degree in Computer Science, Engineering, or related field.
- 4+ years of professional software engineering experience.
- Proficiency in .NET backend development.
- Experience with cloud development (Azure preferred).
- Ability to integrate external APIs and services.
- Strong understanding of secure coding principles and compliance requirements.
Preferred: - Payments industry experience (ACH, card processing, settlement, Worldpay integration).
- Exposure to microservices architecture and distributed systems.
- Experience scaling throughput in payment transaction systems.
- Familiarity with modern payment methods (Apple Pay, Google Pay, network tokens).
Compensation & Benefits - Competitive salary range: $130,000 - $150,000+, based on experience
- Comprehensive benefits package including medical, dental, vision, and generous PTO.
- Bonus eligibility and 401(k) matching.
- Opportunities for professional growth and cross-team collaboration.
Why Wellfit? - Make an Impact: Shape the financial backbone of one of the most innovative healthcare fintech companies in the U.S.
- Work Flexibly: Hybrid work model based in Dallas.
- Invest in Your Future: Competitive compensation, benefits, and career development.
- Fast-Growth Environment: Join a profitable startup on a national growth trajectory.
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