Principal R&D Engineer — Routing Algorithms

Job Title

Principal R&D Engineer — Routing Algorithms

Role Summary

Develop and optimize interposer and multi-die routing algorithms and engines used in production EDA tools. Work on performance, memory efficiency, and maintainability of routing code for 2.5D/3D chip architectures.

Collaborate with a globally distributed R&D and application engineering team to modernize legacy modules, resolve complex field issues, and drive the technical direction of the routing platform.

Experience Level

Senior — 10+ years of software development experience, preferably in EDA, CAD, or computational geometry domains.

Responsibilities

Primary duties include algorithm design, implementation, and maintenance for routing tools targeting multi-die systems.

• Design and implement advanced interposer routing algorithms for signal, power/ground distribution, and shielding.
• Implement and optimize routing engines in modern C++ (C++14/17/20) with a focus on performance and memory efficiency.
• Apply graph theory and computational geometry to model and solve routing constraints in 2.5D and 3D architectures.
• Refactor and modernize legacy routing modules to reduce technical debt and improve reusability.
• Debug and resolve complex algorithmic and performance issues from internal teams and customer deployments.
• Collaborate with distributed teams across the US, India, and Asia on architecture, API design, and releases.
• Provide technical guidance and code reviews; mentor other engineers to improve algorithm design and C++ practices.

Requirements

Must-have technical skills and experience required to perform the role.

• 10+ years building production-quality software tools, preferably in EDA, CAD, or computational geometry.
• Expert-level proficiency in modern C++ (C++14 or later): STL, templates, memory management, and performance tuning.
• Strong foundation in graph algorithms, data structures, and algorithmic complexity analysis with demonstrated applied experience.
• Experience designing, implementing, and debugging complex algorithms in large, multi-contributor codebases.
• Proven ability to troubleshoot root causes and implement robust fixes that prevent recurrence.
• Effective written and verbal communication for collaborating with distributed engineering teams and presenting technical work.

Nice-to-have

• Hands-on experience with routing, placement, or other physical design algorithms.
• Familiarity with EDA tools, VLSI design flows, or semiconductor manufacturing concepts.

Education Requirements

MS or PhD in Computer Science, Electrical Engineering, or a related technical field (as stated in the posting).

About the Company

Company: Synopsys

Headquarters: Mountain View, California, USA

Synopsys is a leading company in electronic design automation (EDA) and semiconductor IP solutions. It provides tools and services for designing and verifying complex semiconductor devices and systems. The company plays a pivotal role in the semiconductor industry, helping engineers innovate and deliver higher-quality products faster. Synopsys is committed to advancing technology standards and offers a range of software and hardware solutions to its clients globally.