Senior Software Engineer (Payments/Real-Time systems)

Senior Software Engineer | Full-Time (Direct Hire) | Silicon Valley | Hybrid Work Schedule

Please note: 3rd party candidates will not be considered for this position.

Our client is a global technology company that develops advanced software and hardware solutions for payment processing across in-store, digital, and cloud environments. Their platforms enable secure, compliant transactions and power many of the payment systems used by major retailers and service providers. This role focuses on building and scaling the next generation of cloud-based payment applications, ensuring security, reliability, and seamless performance across global operations.

What You Will Do

Architect, design, and develop scalable, secure, cloud-native payment applications, including:

• Cloud-based Pay App solutions
• PCI-compliant Cardholder Data Environments (CDE)
• Payment Terminal Management Systems, Marketplaces, and APIs

Own the full lifecycle of feature development and maintenance for real-time transaction systems.

Collaborate with engineering and security teams to ensure full PCI-DSS compliance.

Build event-driven, fault-tolerant services using AWS and other serverless technologies.

Implement CI/CD pipelines using Bitbucket Pipelines, automated testing, and workflow integration.

Monitor performance and system health through New Relic, CloudWatch, and other observability tools.

Participate in Agile Scrum ceremonies and collaborate with global development teams.

Conduct technical reviews, document system designs, and mentor junior engineers on cloud and security best practices.

What You Bring

• 8 or more years of experience building and maintaining production-grade cloud software applications.
• Minimum of 2 years of hands-on experience architecting and developing secure, scalable AWS-based systems.
• Proven experience working with payment systems, cardholder data, or other secure transaction environments.
• Strong understanding of PCI-DSS compliance principles.
• Deep technical knowledge of Node.js with strong backend development skills in TypeScript or JavaScript.
• Experience with RESTful APIs, JSON, YAML, authentication, and encryption methods.
• Familiarity with CI/CD automation tools such as Bitbucket and observability platforms like New Relic.
• Strong written and verbal communication skills and the ability to work effectively across teams and time zones.
• Expertise with AWS services and architecture design for distributed, high-availability systems.
• Experience integrating with payment processors, third-party payment gateways, or cloud-based Pay App marketplaces.
• Knowledge of MQTT or IoT Core messaging for payment device connectivity.
• Skilled in designing systems with horizontal scaling, redundancy, and disaster recovery.

U.S. Citizens and those authorized to work in the U.S. are encouraged to apply. We are unable to sponsor at this time.