> Markdown version of [/jobs/ext/4539711-software-engineer-sr-lead](https://www.wearedevelopers.com/jobs/ext/4539711-software-engineer-sr-lead). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer Sr Lead - **Company:** FIS, Inc. - **Location:** United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** COBOL (Programming Language), Code Review, IBM DB2, Electronic Data Interchange (EDI), Payment Systems, Job Control Language (JCL), Mainframes, Performance Tuning, Software Engineering, Parallel Computation, Mainframe Programming, Information Technology, Deployment Automation - **Published:** November 3, 2026 - **Apply:** https://www.careerbuilder.com/job-details/software-engineer-sr-lead--17a253ed-4a8c-478a-bbfc-c345b0bf5de3 ## About the Role Software Engineering, Diversity, Business Analysis, Payment Processing, Ecosystems, Product Management, Service Delivery, Electronic Data Interchange (EDI), Technical Leadership, Technical Delivery, * Bachelor's degree in Computer Science, Information Technology, Engineering, or equivalent combination of education and experience. * Extensive experience in software engineering and technical leadership roles within financial services or payments technology. * Strong expertise in ACH payment processing and payment systems architecture. * Advanced experience developing and supporting mainframe applications using: COBOL DB2 JCL Mainframe development and deployment tools * Strong understanding of software development lifecycle methodologies and production support processes. * Experience leading complex, large-scale technology initiatives from conception through deployment. * Proven ability to troubleshoot, optimize, and maintain high-volume, mission-critical applications. * Excellent communication and stakeholder management skills. * Demonstrated experience collaborating across technical and business organizations. Added Bonus If You Have * Deep expertise with ACH Tracker or similar ACH processing platforms. * Experience with payment regulations, compliance requirements, and risk management solutions. * Knowledge of: OFAC screening Prefunding processes Transaction controls Regulatory change implementation * Experience with throughput optimization, parallel processing, and large-scale performance tuning initiatives. * Technical architecture experience within high-volume financial transaction environments. * Experience leading modernization and transformation programs for legacy payment platforms. * Strong mentoring and people leadership capabilities. ## Description * Serve as the technical lead and primary contributor for ACH payment processing solutions, including XAA/EDI applications. * Lead end-to-end technical delivery of strategic projects, often acting as the principal technical resource from design through implementation and production support. * Design, develop, maintain, and enhance complex payment processing applications using mainframe technologies. * Drive modernization and platform upgrade initiatives to improve scalability, performance, and maintainability. * Resolve production issues, defects, and service requests while ensuring system stability and operational excellence. * Coordinate change management activities, including deployment planning, production validation, release approvals, and implementation support. * Partner with cross-functional teams to define requirements, develop technical solutions, and ensure successful project execution. * Optimize system performance through process improvements, job flow optimization, and platform efficiency enhancements. * Provide technical architecture guidance and solution design expertise for complex payment processing environments. * Mentor engineers and provide technical leadership, code reviews, and quality oversight across development teams. * Support client implementations and collaborate with stakeholders to ensure successful delivery of business objectives. * Participate in on-call support rotations and coordinate operational readiness activities as required.