Senior JVM C/C++ DeveloperIBM • Markham, York Region, CA

Senior JVM C / C++ Developer

IBM • Markham, York Region, CA

30+ days ago

Job type

Full-time

Job description

Senior JVM C / C++ Developer at IBM

Are you driven by the challenge of building high‑performance, scalable, and reliable systems software? Join our team of expert engineers developing 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, IBM 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.

We’re seeking talented technical leaders to work on one or more core components of the JVM : the Virtual Machine Core, Garbage Collection, and Just‑In‑Time (JIT) Compilation. Whether you’re passionate about memory management, compiler optimizations, or runtime infrastructure, this role offers the opportunity to work at the heart of Java performance and innovation.

Why Join Us?

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

Design and implement GC algorithms to optimize memory usage and reduce pause times.

Develop advanced JIT compiler optimizations to improve execution speed and startup performance.

Enhance the VM core, including threading, synchronization, class loading, and bytecode execution.

Analyze and tune performance across a wide range of workloads using profiling and telemetry tools.

Collaborate across teams to ensure seamless integration between GC, JIT, and VM subsystems.

Mentor junior developers in the field of software development.

Contribute to and influence open‑source projects such as Eclipse OpenJ9 and OpenJDK.

Support enterprise clients by diagnosing and resolving complex runtime issues in production environments.

Preferred Education

Master's Degree

Required Technical and Professional Expertise

Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.

3–6 years experience demonstrating strong proficiency in C or C++, with systems‑level development experience.

Solid understanding of operating system fundamentals (memory, threading, synchronization).

Experience with debugging and profiling tools (e.g., gdb, perf, valgrind).

Excellent problem‑solving skills and a passion for deep technical challenges.

Preferred Technical and Professional Experience

Experience in one or more of the following areas :

Garbage Collection algorithms and memory management

Compiler theory and JIT optimization techniques

Virtual machine architecture and runtime services

Familiarity with Java internals, JVM architecture, and performance tuning.

Contributions to OpenJDK, Eclipse OpenJ9, or similar open source projects are a strong asset.

Seniority Level

Mid‑Senior level

Employment Type

Full‑time

Job Function

Engineering and Information Technology

Industries

IT Services and IT Consulting

Referrals increase your chances of interviewing at IBM by 2x.

Location : Markham, Ontario, Canada.

Salary : CA$40,000 – CA$45,000.

#J-18808-Ljbffr

Create a job alert for this search

Senior JVM CC Developer • Markham, York Region, CA

Similar jobs

Senior Java Developer

Targeted Talent • Toronto, ON, Canada

Full-time

At Targeted Talent, we love finding our clients the best possible talent, and it shows!.Are you a Senior Java Developer who loves working with cutting-edge technologies and solving complex problems...Show more

Last updated: 30+ days ago • Promoted

Senior Java Developer

Behavox Limited. • Toronto, Canada

Full-time

Behavox is shaping the future for how businesses harness their most important raw material - data.Our mission is bold : Organize enterprise data into actionable information that protects and promote...Show more

Last updated: 3 days ago • Promoted

Senior Java Developer

Edjuster • Toronto C6A, ON, Canada

Full-time

This is a remote position and can be located anywhere in Canada.AS THE WORLD MOVES TO FHIR, THERE ARE PLENTY OF REASONS TO SMILE. Smarter decisions, fewer barriers, and better incentives are just th...Show more

Last updated: 30+ days ago • Promoted

Senior Java Developer

VySystems • Toronto C6A, ON, Canada

Full-time

Java Backend Developer - API, Microservices.Proven experience in designing Java / Java EE solutions.Experience in designing Microservices & APIs. Proven experience in Java back-end development with th...Show more

Last updated: 28 days ago • Promoted

Lead Java Developer

freelance.ca • Toronto, Canada

Full-time

Location : Toronto, ON (Hybrid).The ideal candidate will have hands-on experience building cloud-native solutions, working with large-scale databases, and collaborating with cross-functional teams t...Show more

Last updated: 30+ days ago • Promoted

Senior Java Developer

Scotiabank • Toronto, Canada

Full-time

Join a purpose driven winning team, committed to results, in an inclusive and high-performing culture.The Global Fraud Technology team develops and manages innovative products designed to support t...Show more

Last updated: 30+ days ago • Promoted

Senior Java Developer : Impactful Hybrid, Large-Scale Apps

Tink • Toronto, Canada

Full-time

A technology consulting firm in Montreal is looking for a Senior Java Developer to join their team.In this position, you will design, develop, and optimize complex web applications while collaborat...Show more

Last updated: 18 days ago • Promoted

Senior Java Developer

CanDeal • Toronto C6A, ON, Canada

Full-time

CanDeal is a leading provider of electronic marketplaces and data services for Canadian dollar debt securities and derivatives. Its Markets Division, provides access to a deep pool of liquidity for ...Show more

Last updated: 13 days ago • Promoted

Senior Java Developer (Trading Systems) - scarborough

Luxoft • scarborough, on, ca

Full-time

Building a risk applications and tools for innovative international top-tier hedge fund from the ground up, comprising the systems for traders, pre-trade checks and analysis, risks and limits manag...Show more

Last updated: 8 days ago • Promoted

Senior Java Developer

Compunnel, Inc. • Toronto, Canada

Full-time

Enterprise Technology & Services (ETS) delivers shared technology services for the Firm, supporting all business applications and end users. ETS provides capabilities for the entire software develop...Show more

Last updated: 18 days ago • Promoted

Senior Java Developer - GCP

Nexus Systems Group Inc. • Toronto, Canada

Full-time

Contract Duration : 6 months (Possibility for extension).Reason : Additional resource is required to support an application migration from Azure to GCP. Story Behind the Need Business group : RESL Engi...Show more

Last updated: 30+ days ago • Promoted

Senior Java / IBM MQ Developer

CIBC • Toronto, Canada

Full-time

We’re building a relationship-oriented bank for the modern world.We need talented, passionate professionals who are dedicated to doing what’s right for our clients. At CIBC, we embrace your strength...Show more

Last updated: 18 days ago • Promoted

Senior Developer

freelance.ca • Toronto, Canada

Full-time

Location : Toronto, ON (Hybrid).Simcorp Developer JD Play technical role in squads efforts to deliver system enhancements to Simcorp Dimension. Participate in all the steps in the development life cy...Show more

Last updated: 30+ days ago • Promoted

Senior Java Developer(AI adoption)

OpenText • Toronto, Canada

Full-time

Overview OpenText is a global leader in information management, fostering a culture of innovation, creativity, and collaboration. As a member of our team, you will partner with top companies, tackle...Show more

Last updated: 12 days ago • Promoted

Senior Java Developer

Tata Consultancy Services • Toronto, Canada

Full-time

Tata Consultancy Services (TCS) is an equal opportunity employer, and embraces diversity in race, nationality, ethnicity, gender, age, physical ability, neurodiversity, and sexual orientation, to c...Show more

Last updated: 19 days ago • Promoted

Senior Java Developer, Capital Markets

Alithya Group • Toronto, Canada

Full-time

Overview The salary range for this position in Ontario is $80,000 to $130,000.The determination of an applicant’s base salary within this range is based on the individual’s location, skills and com...Show more

Last updated: 9 days ago • Promoted