Tandem Developer

Key Responsibilities • Serve as the technical lead for the Tandem authorization team, providing hands-on design, development, and support of critical credit card authorization systems. • Collaborate with senior engineers, architects, and product managers to deliver highly available and scalable solutions. • Act as a bridge between developers and management, facilitating communication and ensuring delivery timelines are met. • Mentor junior engineers and perform code reviews, system analysis, and troubleshooting for production issues. • Participate in efforts to modernize legacy systems, while maintaining compliance with security and regulatory requirements. • Work closely with QA, DevOps, and release teams to ensure seamless deployment and support. • Play a key role in building trust with existing teams, contributing immediately to key initiatives while ramping up toward future leadership. Required Skills & Qualifications • 10+ years of experience working with Tandem/HP NonStop systems, specifically in Base24, COBOL, TACL, Pathway, and Enscribe environments. • Deep knowledge of authorization, transaction switching, and credit card processing logic. • Proven experience in high-volume, low-latency payment systems. • Familiarity with ISO 8583 messaging standards. • Solid experience with incident management, root cause analysis, and performance tuning. • Strong problem-solving and analytical skills, with the ability to work independently and within a team. • Experience working in an Agile/Scrum environment. • Excellent communication and interpersonal skills — must be able to gain team confidence quickly. Preferred Qualifications • Experience leading development teams or serving as a team technical point of contact. • Exposure to modernizing legacy Tandem systems or integrating with cloud-based platforms. • Knowledge of distributed systems, microservices architecture, or modern payment frameworks is a plus. • Prior experience at a credit card issuer or major bank is highly desirable.