Job Title: Principal Engineer Location: Seattle, WA (need to work onsite, or hybrid 3 days a week). Duration : Long-Term Contract. Key Requirement: Having intensive experience and knowledge of Payment systems.
Responsibility Leads and mentors a team of engineers; provides technical guidance, shares best practices, and fosters a culture of continuous learning and growth. Designs, develops, and deploys high-performance enterprise services and microservices that power our digital payments infrastructure, including payment gateways, token vaults, and fraud management systems. Adheres to and drives modern software engineering practices through design reviews. Works on system design through well-defined interfaces across multiple components, code reviews, leveraging data/telemetry to make decisions. Develops "best-in-class" engineering for our services by ensuring that the services and the components are well-defined and modularized, secure, reliable, diagnosable, actively monitored, and reusable. Improves test coverage for services; organizes and implements integration tests; and resolves problem areas. Ensures testability, portability/monitoring, reliability, and maintainability; and understands when code is ready to be shared and delivered. Gains a working understanding of business and collaborates with cross-functional teams, including Product Managers, Architects, and other Engineering teams, to gather requirements, define technical specifications, and drive the implementation of scalable and reliable payment solutions. Conducts in-depth technical analysis of payment-related systems and processes; identifies areas for improvement and recommends innovative solutions to enhance efficiency, security, and customer experience. Collaborates with DevOps teams to ensure the smooth deployment and operation of services and systems in a highly available and scalable production environment. Focuses on business needs through a data driven approach. Troubleshoots and optimizes automation, reliability, and monitoring for delivered products. Stays up-to-date with the latest industry trends and advancements in digital payments, microservices architecture, and fraud detection techniques; applies them to drive innovation and excellence in our payment systems. Required 10 + years' technical engineering experience with coding in languages including, but not limited to, C, C++, C#, Java, JavaScript or Python or equivalent experience. Extensive experience in designing and developing enterprise services and microservices architecture in the digital payment's domain. Strong proficiency in programming languages such as Java, Python or Go, and solid experience with frameworks such as Spring Boot or Django. Proven expertise in building and integrating payment gateways, token vaults, fraud management, digital wallets, etc., with a deep understanding of related protocols and standards (ex. PCI-DSS, OAuth, EMV, etc.). Experience with scalable cloud platforms (ex. Azure, AWS, or Google Cloud) and related services such as serverless computing, containerization (Docker, Kubernetes), and infrastructure-as-code (Terraform, CloudFormation). Proficient in using modern software development tools, version control systems (ex. Git), and continuous integration/continuous deployment (CI/CD) pipelines. Solid understanding of software engineering principles, design patterns, and best practices for building highly scalable and maintainable systems. Excellent problem-solving and analytical skills, with the ability to dissect complex technical challenges and propose innovative solutions. Strong communication and leadership abilities, with a proven track record of collaborating effectively in cross-functional teams and mentoring junior engineers. Recommended Bachelor's or Master's Degree in Computer Science, or related technical discipline. Equivalent experience. Prior experience successfully managing the delivery of technology solutions. Consulting or Leadership experience. Previous work with both legacy and emerging technology solutions.
