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JVM C/C++ Service Engineer

IBM

Markham, ON, Canada

Posted on Oct 31, 2025

Introduction

Are you driven by the challenge of servicing and supporting high-performance, scalable, and reliable systems software? Join our team of expert engineers developing and servicing the Java Virtual Machine (JVM) — the engine behind millions of applications across cloud, enterprise, and AI workloads. Built with the OpenJDK class libraries and the Eclipse OpenJ9 JVM <https://eclipse.dev/openj9>, IBM Semeru Runtimes <https://ibm.biz/semeru-runtimes> deliver high quality, strong security, and top performance to run Java applications on-prem or in the cloud. Rigorously engineered and tested to run on operating systems like Windows, macOS, and Linux and server platforms such as Arm, X86, IBM POWER and Z systems, IBM Semeru Runtimes are built by a globally diverse team and used by hundreds of IBM software products and tens of thousands of customers, powering businesses from startups to giant corporations in virtually every industry.

When a customer reports an issue with one of these products in the field, the issue may end up with the IBM Runtime Technologies L3 Service squad. It is our team’s mission to determine the root cause of such failures and deliver effective fixes in a timely manner.

Why Join us?

This might just be the job for you if you:

Are curious about how language runtimes work
Are interested in working with multiple hardware and software platforms
Love native-level debugging
Enjoy a fast-paced, ever-changing work environment and workload
Are passionate about providing an exemplary customer experience
Are eager to collaborate with clients and colleagues across multiple geographies and business units

You will:

Work on cutting-edge runtime technology used by millions of developers
Tackle deep technical challenges that push the boundaries of performance and scalability
Be part of a collaborative, world-class team of JVM engineers
Enjoy flexible work arrangements, competitive compensation, and opportunities for career growth
Influence the future of Java in cloud-native, AI, and enterprise environments

Your role and responsibilities

As a member of our team, in this role you will diagnose and resolve issues reported against our language runtimes by both internal and external clients, with a focus on issues with the Java Virtual Machine (JVM) component of the Java runtime. You will work closely with client-side support engineers to further understand the problem and collect failure data, and with the development team for deep diagnosis and fix development and delivery. You will also work with other members of the Runtimes L3 team whose expertise is with other components of the Java runtime.

You will work with a wide variety of software failure types, including crashes, performance issues, and exception / error conditions. You'll work across an assortment of supported platforms, including the Linux, Windows, AIX, and z/OS operating systems, and on X86, POWER, Z, and ARM processor architectures. Most of your debugging and diagnosis will be done post-mortem, i.e. through analysis of data collected at the time of the failure. You will often work with the client and other IBM service engineers to collect additional data, occasionally providing diagnostic builds to enable additional failure data collection.

Required education

High School Diploma/GED

Preferred education

Bachelor's Degree

Required technical and professional expertise

Proven debugging and problem diagnosis skills
At least 1 year working knowledge with Linux and Windows
Experience with at least one native debugger
Working knowledge of C/C++ programming, runtimes, data structures and algorithms
Good knowledge of one or more processor architectures, e.g. x86, ARM, POWER, and Z
Demonstrated effective written and verbal communication skills

Preferred technical and professional experience

At least 6 months in a technical support or customer service role
Experience working with Customer Relationship Management (CRM) and other trouble-ticketing tools, ideally Salesforce
Working knowledge of Java programming
Working knowledge of AIX and/or z/OS
Experience with Shell scripting
Knowledge in one or more of the following areas:
- Virtual machine architecture and runtime services
- Garbage Collection algorithms and memory management
- Compiler theory and JIT optimization techniques

ABOUT BUSINESS UNIT

IBM Software infuses core business operations with intelligence—from machine learning to generative AI—to help make organizations more responsive, productive, and resilient. IBM Software helps clients put AI into action now to create real value with trust, speed, and confidence across digital labor, IT automation, application modernization, security, and sustainability. Critical to this is the ability to make use of all data, because AI is only as good as the data that fuels it. In most organizations data is spread across multiple clouds, on premises, in private datacenters, and at the edge. IBM’s AI and data platform scales and accelerates the impact of AI with trusted data, and provides leading capabilities to train, tune and deploy AI across business. IBM’s hybrid cloud platform is one of the most comprehensive and consistent approach to development, security, and operations across hybrid environments—a flexible foundation for leveraging data, wherever it resides, to extend AI deep into a business.

YOUR LIFE @ IBM

In a world where technology never stands still, we understand that, dedication to our clients success, innovation that matters, and trust and personal responsibility in all our relationships, lives in what we do as IBMers as we strive to be the catalyst that makes the world work better.

Being an IBMer means you’ll be able to learn and develop yourself and your career, you’ll be encouraged to be courageous and experiment everyday, all whilst having continuous trust and support in an environment where everyone can thrive whatever their personal or professional background.

Our IBMers are growth minded, always staying curious, open to feedback and learning new information and skills to constantly transform themselves and our company. They are trusted to provide on-going feedback to help other IBMers grow, as well as collaborate with colleagues keeping in mind a team focused approach to include different perspectives to drive exceptional outcomes for our customers. The courage our IBMers have to make critical decisions everyday is essential to IBM becoming the catalyst for progress, always embracing challenges with resources they have to hand, a can-do attitude and always striving for an outcome focused approach within everything that they do.

Are you ready to be an IBMer?

ABOUT IBM

IBM’s greatest invention is the IBMer. We believe that through the application of intelligence, reason and science, we can improve business, society and the human condition, bringing the power of an open hybrid cloud and AI strategy to life for our clients and partners around the world.

Restlessly reinventing since 1911, we are not only one of the largest corporate organizations in the world, we’re also one of the biggest technology and consulting employers, with many of the Fortune 500 companies relying on the IBM Cloud to run their business.

At IBM, we pride ourselves on being an early adopter of artificial intelligence, quantum computing and blockchain. Now it’s time for you to join us on our journey to being a responsible technology innovator and a force for good in the world.

IBM is proud to be an equal-opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, gender, gender identity or expression, sexual orientation, national origin, genetics, pregnancy, disability, neurodivergence, age, or other characteristics protected by the applicable law. IBM is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

OTHER RELEVANT JOB DETAILS

Must have the ability to work in Canada without sponsorship.

This role will involve working with technology that is covered by Export Regulations sanctions. If you are a Foreign National from any of the following US sanctioned countries (Cuba, Iran, North Korea, Syria, and the Crimea, Luhansk, Donetsk, Kherson, and Zaporizhia regions of Ukraine) on a work permit, you are not eligible for employment in this position.

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