Principal Software Engineer
It's fun to work in a company where people truly BELIEVE in what they're doing!Job Description Summary:The Infrastructure Modernization business unit is seeking a highly experienced Principal Software Engineer to join our engineering organization and provide deep technical leadership across our COBOL development ecosystem and our Enterprise Server application replatforming products. This is a hands-on, strategic role focused on designing, building, and evolving mission‑critical infrastructure used by global enterprises running high‑volume, high‑reliability systems.In this role, you will influence architecture across multiple product lines, guide engineering best practices, and help define the future of our platform as customers modernize decades‑old workloads into more agile, distributed and environments. You will partner closely with senior engineering leaders, product managers, and domain experts to drive innovation at scale.What You’ll DoTechnical LeadershipArchitect, design, and implement core components within our COBOL development tools, runtime environments, and mainframe replatforming infrastructure.Provide technical direction across multiple engineering teams building compilers, runtimes, middleware, and large-scale distributed systems.Drive modernization strategies for legacy application ecosystems, including cloud migration, workload transformation, and hybrid deployment scenarios.Hands-On EngineeringOwn complex technical domains end-to-end, from design through production, balancing long‑term architecture with immediate product needs.Build highly reliable, scalable, and secure infrastructure software used in mission‑critical enterprise environments.Conduct deep code reviews, troubleshoot production issues, and mentor engineers in system-level design and performance optimization.Cross-Functional ImpactCollaborate with product management to shape roadmap priorities and translate customer challenges into technical solutions.Work with System Test, DevOps, and release engineering to ensure high-quality, low‑risk releases across a diverse product portfolio.Introduce and champion engineering excellence practices, including automated testing, performance benchmarking, observability, and maintainability.What We’re Looking ForRequired Experience10+ years of professional software engineering experience, including leadership over complex, multi‑team technical initiatives.Deep expertise in systems-level software development, such as compilers, runtimes, operating systems, or infrastructure‑level platforms.Strong background in mission-critical, high‑availability software (e.g., financial services, telecom, government, or core enterprise platforms).Demonstrated experience with COBOL, PL/I, C, or C++—or significant experience in other lower-level languages with a willingness to dive into COBOL domain internals.Proven track record building or modernizing enterprise-grade tooling, middleware, or distributed systems.Ability to decompose legacy archite...