About the Position

Principal Mainframe Developer - HLASM

Location: United States (Remote)

Employment Type: Full-time

Responsibilities

Build low-level, high-performance instrumentation inside CICS and z/OS
Push the limits of what’s possible with HLASM
Design and ship features used by the largest enterprises on the planet
Diagnose complex behavior using dumps, traces, and deep system insight
Deliver code that runs in mission-critical environments where overhead is unacceptable
Work directly with a small, elite team of highly experienced engineers
Raise the bar-technically and operationally

Requirements

Must Have:
- 7+ years of real-world HLASM experience
- Deep expertise in z/OS internals, CICS internals, systems programming, and runtime behavior
- Strong hands-on experience with CICS
- Daily proficiency with JCL, SDSF, and USS
- Proven ability to analyze dumps, traces, and performance bottlenecks
- Working knowledge of COBOL, PL/I, or C for testing and debugging
Nice to Have:
- Experience with DB2, MQ, networking, CTG, security, or WebSphere (WAS)
- Familiarity with z/OS Connect or modern hybrid mainframe architectures
- Some Java experience
- AI experience

We Offer

Competitive salary: $161K - $241K
Comprehensive benefits package including Health, Dental, Life, STD, LTD, 401K, and PTO
Mental health support through our Employee Assistance Program
Wellness Days: Four extra paid days off
Flexibility: Hybrid working model and flexible working hours
AI-driven workflows to automate tasks
Learning and development opportunities
Volunteering day: A day of paid volunteer time
Regular team events and a multicultural international vibe

About the Company

Dynatrace (NYSE: DT) is the leading AI-powered observability and security platform. We're advancing observability for today's digital businesses, helping transform modern digital ecosystems' complexity into powerful business assets.

Our AI-driven insights cut through the noise, allowing customers to focus on what truly matters by automating manual tasks and resolving issues with pinpoint accuracy. Dynatrace offers simplicity, clarity, and reliability at scale to ensure teams can make informed decisions, minimize downtime, and drive their business forward with confidence.

We’re proud to be certified as a Great Place To Work® in 16 countries-an achievement made possible by feedback from our incredible team.

Equal Employment Opportunity

Dynatrace is an Equal Opportunity/Affirmative Action employer. All qualified applicants will receive consideration for employment without regard to race, sex, color, gender identity, religion, national origin, ancestry, citizenship, physical abilities, age, sexual orientation, creed, disability status, veteran status, pregnancy, genetic status, or any other characteristic protected by law. If your disability makes it difficult for you to use this site, please contact [email protected]. Dynatrace participates in E-Verify, participant information in English and Spanish. Right to work information in English and Spanish. EEO is the Law.

Note to Recruiters and Agencies: We do not accept unsolicited agency resumes-do not forward them via our website or directly to Dynatrace employees. Dynatrace will not pay fees for unsolicited resumes, and any resumes received this way will be considered the property of Dynatrace.

Principal Mainframe Developer - HLASM

Job description