Amit Kumar

Amit Kumar Email and Phone Number

Development Team Lead @ IBM | Java Hotspot(Runtime) Developer | OpenJDK Committer, s390x Port Project Lead | Open Source Contributor & C++ Developer @ IBM
new york, new york, united states
Amit Kumar's Location
Bengaluru, Karnataka, India, India
Amit Kumar's Contact Details

Amit Kumar personal email

About Amit Kumar

Team Lead at IBM Research Labs (ISDL), managing the OpenJDK project (s390 Port), an open-source implementation of Java. Serving as an OpenJDK Committer for the head stream and an Author for JDK-Updates, specializing in the IBM-s390 Port and Hotspot (Runtime) component. Dedicated to ensuring seamless build-ability and functionality on the s390x architecture. Passionate about learning new C++ concepts and solving competitive programming problems.

Amit Kumar's Current Company Details
IBM

Ibm

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Development Team Lead @ IBM | Java Hotspot(Runtime) Developer | OpenJDK Committer, s390x Port Project Lead | Open Source Contributor & C++ Developer
new york, new york, united states
Website:
ibm.com
Employees:
512090
Amit Kumar Work Experience Details
  • Ibm
    Development Team Lead, Openjdk On Ibm-Z
    Ibm Sep 2023 - Present
    Bengaluru, Karnataka, India
    I am embarking on my journey as a Lead Developer for OpenJDK s390 Port Project. Here are few of my Individual contributions: * Added Port for JEP 475: Late Barrier Expansion for G1 Garbage Collector* Implemented Recursive Object Locking for C2 Compiler.* Improved Profiled Data collection for heavily Polluted Profiles. * Added fast path check in Thread Initialiser to avoid repeated interpreter calls for classes being initialised.* Added Port for Relocation of Field Information out of the Constant Pool Cache.* Added Port for Relocation of Method Resolution Information out of the Constant Pool Cache.* Restructured representation of whole Register class to use Values instead of pointers.* Added port for issue of frequent updates in the secondary_super_cache, as multiple threads attempting regular updates.
  • Ibm
    Compiler Developer (Openjdk- Java Runtime/Hotspot)
    Ibm Nov 2022 - Sep 2023
    Bengaluru, Karnataka, India
    As OpenJDK Contributor specializing in the IBM-s390 Port and Hotspot (Runtime) component, actively involved in the development and improvement of the project. Here are some key highlights of my contributions:* Successfully Fixed multiple broken builds across various debug levels* Finished the porting of new standalone functionalities specifically designed for S390 Architectures, such as the highly efficient Use for Heavy Monitors and Fast Locking Scheme.* Co-authored pull requests to enhance the overall functionality and performance of the project, catering to all architectures.* Addressed and resolved multiple failing test cases* Implemented code enhancements to elevate code readability, enabling ease of comprehension and facilitating future modifications.* Improved the build process by implementing advanced calculations for new build job creation, resulting in reduced build time. * Recognized for the substantial impact of my contributions to the community, attaining the esteemed Committer Status.
  • Ibm
    Software Engineer - Z Security And Compliance Center
    Ibm Jul 2022 - Nov 2022
    Bengaluru, Karnataka, India
    I was part of the IBM-zSCC (Z Security and Compliance Center) team, where I have worked on Integration Test repository.* started by learning LCC framework, despite its unfamiliarity at the outset, and implement tests and checks for around 64% of the APIs.* Used parallel execution method for tests, resulting in execution time reductions of up to 81%. This significantly reduced the time taken by testing process.
  • Openjdk
    Openjdk Committer, S390X (Ibm-Z) Port Project Lead
    Openjdk May 2024 - Present
    From May2024 onwards, I have started my new journey as s390x Port Project Lead. I look after the new JEPs/Issues/Ports done for other architecture which could be beneficial for s390s architecture as well.
  • Openjdk
    Openjdk/Committer, Ibm-Z Port Developer
    Openjdk Jun 2023 - May 2024
    I have established myself as a valuable asset within the project. With a proven track record of contributions and accomplishments, I have been granted the status of Committer, showing my record of actively contributing in OpenJDK Project.
  • Openjdk
    Openjdk/Author & Ibm-Z Port Developer
    Openjdk Nov 2022 - Jun 2023
    With author status, I have the privilege to open new issues in the Java Bug System (JBS) and nominate myself for working on existing issues.

Amit Kumar Skills

C++ Algorithms Data Structures Object Oriented Programming Linux Python Javascript Bash Shell Scripting Competitive Programming Tensorflow Opencv

Amit Kumar Education Details

Frequently Asked Questions about Amit Kumar

What company does Amit Kumar work for?

Amit Kumar works for Ibm

What is Amit Kumar's role at the current company?

Amit Kumar's current role is Development Team Lead @ IBM | Java Hotspot(Runtime) Developer | OpenJDK Committer, s390x Port Project Lead | Open Source Contributor & C++ Developer.

What is Amit Kumar's email address?

Amit Kumar's email address is of****@****ail.com

What schools did Amit Kumar attend?

Amit Kumar attended Arya College Of Engineering And It.

What skills is Amit Kumar known for?

Amit Kumar has skills like C++, Algorithms, Data Structures, Object Oriented Programming, Linux, Python, Javascript, Bash Shell Scripting, Competitive Programming, Tensorflow, Opencv.

Who are Amit Kumar's colleagues?

Amit Kumar's colleagues are Sathish Kumar, Stephen Flanagan, Kritika Singh, Joshua Richey, Mahendar Reddy Parne, Ivan Alejandro Coffeen Calvario, Mike Piccirillo.

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