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BillGO

Senior Software Engineer - Card Issuing

BillGO, Fort Collins, Colorado, us, 80523

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This range is provided by BillGO. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.

Base pay range $145,000.00/yr - $175,000.00/yr

Additional compensation types Annual Bonus

Direct message the job poster from BillGO

POSITION SUMMARY The Software Engineer designs and builds infrastructure and applications for BillGO’s products. The Software Engineer’s duties include designing features and functionality that can be implemented securely and reliably with a focus on performance at scale. This role will be collaborating internally with teammates and other teams as well as externally with third party vendors through a variety of transmission protocols. This role will be fully responsible for code through design, implementation, maintenance, and monitoring.

About the Role As our Issuing Engineer, you will:

Design, build, and maintain the core systems behind our virtual card issuing platform

Integrate AI-powered services for fraud detection, anomaly monitoring, and transaction insights

Build APIs and services that power card creation, spend controls, tokenization, and reconciliations

Collaborate with Product, Risk, and AI/ML teams to develop machine learning–driven authorization rules and customer‑facing analytics

Work closely with network partners (Visa, Mastercard) and issuing processors to ensure secure, compliant, and performant issuing flows

Act as a subject matter expert on issuing technology and AI‑driven enhancements

What You’ll Do

Lead technical development of issuing features: card lifecycle management, spend controls, tokenization, and real‑time transaction processing

Own integrations with card networks and issuing processors (Marqeta, Galileo, Lithic, or direct to network)

Build resilient, observable systems that handle real‑time authorization events and sensitive payment data

Implement real‑time AI‑based fraud detection pipelines that learn from transaction patterns

Integrate LLM‑powered support and operations tooling for internal teams (e.g., automated dispute summaries, transaction anomaly explanations)

Build AI‑driven customer dashboards showing spend patterns, merchant risk profiles, and cost optimization recommendations

Participate in architecture reviews, incident response, and production hardening

Monitor and optimize system performance and cost‑efficiency as the platform scales

Stay current on card network updates, fraud trends, AI advancements, and regulatory shifts

Qualifications

Have strong experience with backend engineering experience, ideally in FinTech or Payments

Have 2+ years working directly on card issuing, processing, or payment systems

Are comfortable with card networks, BIN sponsors, issuing processors

Understand authorization flows, ISO8583, PCI‑DSS, and tokenization

Are fluent in backend development (Node.js, Python, Go, or Java) and distributed system design

Have hands‑on experience integrating AI/ML models into production systems

Can design secure, auditable, and highly‑available services

Are product‑minded and love influencing roadmaps with data‑driven and AI‑enabled insights

Thrive in startup environments with evolving needs

Nice to have

Experience with Marqeta, Galileo, Lithic, or other issuing platforms

Experience with fraud detection models, merchant categorization ML, or real‑time anomaly detection

Familiar with vector databases and LLM orchestration frameworks (LangChain, Semantic Kernel, etc.)

Built customer‑facing AI features such as transaction categorization, forecasting, or spend optimization

Exposure to PCI‑DSS, SOC 2, KYC/AML, and compliance‑heavy environments

Seniority level

Mid‑Senior level

Employment type

Full‑time

Job function

Engineering, Information Technology, and Finance

Software Development and Banking

Benefits

Medical insurance

Vision insurance

401(k)

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