Principal Software Engineer – z/OS Connectivity

🕒 September 25

🇺🇸 United States – Remote

⏰ Full Time

🔴 Lead

🧑‍💻 Full-stack Engineer

🦅 H1B Visa Sponsor

This company has sponsored H1B visas in the past.

👻 Ghost score 11%

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Redwood Software

WebsiteLinkedInAll Job Openings

501 - 1000 employees

Founded 1993

☁️ SaaS

🏢 Enterprise

🤝 B2B

SaaS • Enterprise • B2B

Redwood Software is a cloud-native enterprise software company that provides workload automation and service orchestration platforms (RunMyJobs) to automate and orchestrate business processes across SAP, ERP, cloud and on-premises systems. Its SaaS offerings include job scheduling, managed file transfer, finance/record-to-report automation, DevOps and data orchestration, with low-code tooling, deep SAP integrations, and enterprise-grade security and support.

📋 Description

• Build a new connectivity agent extending Redwood RunMyJobs natively onto IBM z/OS • Design, develop, test, and maintain native software for IBM z/OS connectivity and integration • Build integrations with C/JNI, JES2/JES3, TSO background TMP, and SMF-based event monitoring • Integrate security and per-user authorization with Redwood’s identity and credential management • Develop systems-level capabilities involving custom wire protocols, cryptography, and native z/OS integration • Troubleshoot complex issues across mainframe, Unix, and Java environments • Improve reliability, performance, security, and scalability of mainframe solutions • Partner with product managers, architects, and engineers to translate customer requirements into technical solutions • Participate in architecture discussions, design reviews, code reviews, testing, and release planning • Use agentic AI for coding, testing, and documentation while verifying correctness against IBM z/OS references • Document protocols, security models, and platform prerequisites • Validate technical assumptions on live LPARs and contribute to architecture decisions • Contribute to quality, goals, and delivery commitments in an agile environment

🎯 Requirements

• 10+ years of professional software engineering experience with strong Java 8+ skills; IBM Semeru or z/OS Java experience is a plus • Hands-on z/OS systems integration experience, including JES2/JES3, TSO, RACF/ACF2/Top Secret, SMF, and USS • Strong working proficiency in C • Low-level network protocol experience, including socket programming, custom binary framing, character-encoding conversion, and TLS/keyring security • Hands-on experience implementing cryptographic primitives to specification using standard libraries such as Java JCE, including key exchange and symmetric cipher modes • Strong concurrency and multithreading skills, with experience building resilient, long-running daemon processes • Ability to work effectively from primary technical sources, including IBM manuals and RACF/SMF references • Experience with modern DevOps practices and technologies, including Git, CI/CD, Docker, and Kubernetes • Fluency with AI tools in a production engineering environment • Strong code judgment involving specialized mainframe APIs and AI-generated recommendations • Proficiency in prompting AI tools and recognizing when tasks are too specialized for AI-assisted approaches • Ability to maintain an architectural focus on shared platform-integration designs • Workload automation product experience preferred • Sysplex/Parallel Sysplex clustering or z/OSMF REST API experience preferred • CA-Panvalet, CA-Librarian, or other JCL library tooling experience preferred • z/OS Assembler experience preferred; not a baseline requirement • Mainframe migration or modernization project experience preferred