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Senior AI/ML Backend/Workload Library Developer

Keysight Technologies

Keysight Technologies

Software Engineering, Data Science
Bucharest, Romania · Romania
Posted on Dec 18, 2025
Overview

Keysight is at the forefront of technology innovation, delivering breakthroughs and trusted insights in electronic design, simulation, prototyping, test, manufacturing, and optimization. Our ~15,000 employees create world-class solutions in communications, 5G, automotive, energy, quantum, aerospace, defense, and semiconductor markets for customers in over 100 countries. Learn more about what we do.

Our award-winning culture embraces a bold vision of where technology can take us and a passion for tackling challenging problems with industry-first solutions. We believe that when people feel a sense of belonging, they can be more creative, innovative, and thrive at all points in their careers.

Do you want to work in a highly proficient team and further develop the industry’s leading solution purpose-built for AL/ML data centers testing?

If yes, we would like to tell you more about what we do and can’t wait to meet you

The project: Our goal is to benchmark AI/ML cluster fabric with realistic workloads which typically require investments into compute systems with GPUs and RDMA NICs that are costly and time-consuming to build and operate. To achive this goal, we're creating a product that is able emulate realistic collective communication that is able to test AI/ML fabrics both for conformance and performance.

The Team:

  • Was founded in order to fill a gap on the AI/ML data center workloads testing market.
  • Currently has 15 members and it’s part of a bigger team spread accros multiple geos.
  • We live in the virtual environment, working in Agile, meeting daily to plan and track our objectives.
  • We are working directly with our partners as well as the end customer in a dynamic fashion.
  • We are always designing and developing new features, as well as resolving customer’s enquiries, and working closely with other teams.

Other reasons to join:

We offer an attractive employee benefits package that covers:

  • Personal and professional development tools and internal library.
  • Medical subscription for employee and family members.
  • Flexible working hours.
  • Competitive salary package based on performance.
  • Access to sport activities, and many others.

Responsibilities
  • Participate in the analysis, design, development and maintenance of AI/ML related products.
  • Maintain and enhance current products and participate in the design and development of applications for both internal and external use.
  • Interact with project management, leads, testers and other developers to understand the features, planning the schedule, designing and implementing the solutions, optimizing, performing development testing and bug-fixing to deliver high quality releases on time.

Qualifications

What you need:

  • Proficiency in Python
  • Understanding of AI/ML training/inference patterns, data parallelism, and communication overhead in distributed setups
  • Skills in building scalable APIs, microservices, and data pipelines
  • Knowledge of serialization formats (e.g., Protocol Buffers, JSON) and communication protocols for efficient data transfer
  • Strong grasp of version control (Git), CI/CD pipelines, and cloud platforms (e.g., AWS)
  • Good knowledge of Linux user space
  • Good probblem solving skills
  • Good algorithms/data structures knowledge
  • Ability to quickly learn and grasp new technologies
  • Desire and ability to work in a highly collaborative, team-oriented environment
  • Prove to be performance driven and having a proactive attitude

Bonus skills (not mandatory but appreciated):

  • Experience with PyTorch for implementing parallelism strategies (e.g., data parallelism, model parallelism, pipeline parallelism) and optimizing distributed AI/ML workloads on GPU clusters
  • Knowledge of RDMA (Remote Direct Memory Access), high-speed NICs, and low-latency networking protocols
  • Good knowledge of virtualization technologies (Qemu/KVM)
  • Good knowledge with linux containers technology and Docker/Kubernetes
  • C/C++ programming

Careers Privacy Statement

***Keysight is an Equal Opportunity Employer.***