Principal R&D Engineer-18137

Category Engineering Hire Type Employee Job ID 18137 Base Salary Range $191000-$286000 Remote Eligible No Date Posted 07.22.2026

We Are

Synopsys is the leader in engineering solutions from silicon to systems, enabling customers to rapidly innovate AI-powered products. We deliver industry-leading silicon design, IP, simulation and analysis solutions, and design services. We partner closely with our customers across a wide range of industries to maximize their R&D capability and productivity, powering innovation today that ignites the ingenuity of tomorrow.

You Are

You are a highly skilled and experienced software engineer with a solid background in development and routing algorithm tools. You thrive in dynamic, collaborative environments and possess a strong understanding of modern object-oriented C++ coding techniques. Your deep understanding of graph theory and its applications allows you to solve real-world challenges in multiple die design and manufacturing. You are not just a coder; you are a thinker and a doer, capable of contributing to the development of cutting-edge routing tools. Your ability to troubleshoot, debug, and offer support to application engineers and users makes you a valuable team player. You are ready to take on the challenge of contributing to code refactoring efforts for legacy modules, aiming to increase efficiency and re-usability. Your communication skills allow you to effectively collaborate with an internationally distributed team of R&D and application engineers, and you are committed to continuous learning and professional growth.

What You'll Be Doing

• Design and develop advanced interposer routing algorithms for multi-die systems, including signal routing, power/ground distribution, and shielding strategies
• Implement and optimize routing engines using modern C++ (C++14/17/20), focusing on performance, memory efficiency, and maintainability
• Apply graph theory and computational geometry to model and solve complex routing constraints in 2.5D and 3D chip architectures
• Refactor and modernize legacy routing modules to improve code reusability, reduce technical debt, and enable future feature development
• Debug and resolve complex algorithmic and performance issues reported by application engineers and customer deployments
• Collaborate with a globally distributed R&D team across the US, India, and Asia to align on architecture, API design, and release milestones
• Provide technical guidance and code reviews to other engineers, helping elevate the quality and consistency of the routing platform

The Impact You Will Have

• Enable Synopsys customers to route increasingly complex multi-die and chiplet-based designs that would otherwise be infeasible
• Improve runtime and memory performance of interposer routing tools, directly reducing turnaround time for design teams
• Increase code maintainability and extensibility of core routing modules, making future feature development faster and safer
• Reduce support escalations by building more robust, predictable routing behavior that handles edge cases gracefully
• Influence the technical direction of the routing platform through architecture proposals, design reviews, and cross-team collaboration
• Mentor engineers on the team, raising the bar for algorithm design, C++ best practices, and debugging methodology
• Contribute to Synopsys' leadership in advanced packaging and multi-die design, a critical area as the industry moves beyond monolithic chips

What You'll Need

• 10+ years of software development experience building production-quality tools, preferably in EDA, CAD, or computational geometry domains
• Expert-level proficiency in modern C++ (C++14 or later), including STL, templates, memory management, and performance optimization
• Strong foundation in graph algorithms, data structures, and algorithmic complexity analysis, with demonstrated ability to apply them to real-world problems
• Experience designing, implementing, and debugging complex algorithms in large codebases with multiple contributors
• MS or PhD in Computer Science, Electrical Engineering, or a related technical field
• Hands-on experience with routing, placement, or other physical design algorithms is a strong plus
• Familiarity with EDA tools, VLSI design flows, or semiconductor manufacturing concepts is a plus

Who You Are

• You can take a vague feature request from a product manager or customer and turn it into a clear technical plan with milestones, risks, and tradeoffs
• You write code that other engineers can understand six months later, even when the problem is inherently complex
• When a customer-reported bug lands in your queue, you do not just fix the symptom, you trace it back to the root cause and prevent the class of issue from recurring
• You are comfortable presenting technical work to a mixed audience, whether it is a design review with senior architects or a walkthrough with application engineers who need to support your feature
• You push back when a proposed solution does not scale or when a design decision will create maintenance problems down the road, and you do it constructively
• You stay current with developments in C++, algorithms, and EDA technology, not because it is required, but because you are genuinely interested in how things work

The Team You'll Be Part Of

You will be part of a dynamic and diverse team of R&D and application engineers working on cutting-edge routing tools for multi-die design. Our team is globally distributed, fostering a collaborative environment where innovation and excellence are highly valued. Together, we strive to push the boundaries of technology and make a meaningful impact in the industry.

Rewards and Benefits

We offer a comprehensive range of health, wellness, and financial benefits to cater to your needs. Our total rewards include both monetary and non-monetary offerings. Your recruiter will provide more details about the salary range and benefits during the hiring process.

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At Synopsys, we want talented people of every background to feel valued and supported to do their best work. Synopsys considers all applicants for employment without regard to race, color, religion, national origin, gender, sexual orientation, age, military veteran status, or disability.

In addition to the base salary, this role may be eligible for an annual bonus, equity, and other discretionary bonuses. Synopsys offers comprehensive health, wellness, and financial benefits as part of a competitive total rewards package. The actual compensation offered will be based on a number of job-related factors, including location, skills, experience, and education. Your recruiter can share more specific details on the total rewards package upon request. The base salary range for this role is across the U.S.