Principal Software Engineer – QuestaSim Constraint Solver

Siemens-EDA is a global technology leader in Electronic Design Automation, providing software solutions that help engineers around the world design and manufacture new and highly innovative electronic products. Each year, our customers use our tools to push the boundaries of technology and physics in order to deliver smaller, faster and more reliable products that run the world’s high tech devices.

Position Overview

We are seeking a Principal Software Engineer to join the QuestaSim solver team, focused on enhancing the SystemVerilog constraint solver — a core engine in our industry-leading verification platform. This is a highly technical role ideal for someone passionate about algorithms, performance optimization, and constraint solving.

You’ll work at the intersection of software engineering, formal methods, and high-performance computing, helping evolve one of the most advanced constraint-solving engines in the EDA space.

Responsibilities

Develop efficient algorithms and heuristics for solving large, complex constraint systems
Analyze and improve solver performance, scalability, and reliability
Collaborate with product management and cross-functional teams to define technical direction and requirements
Provide technical leadership through code reviews, mentoring, and architectural guidance
Stay current with advancements in SAT/SMT solving, constraint programming, and EDA methodologies

Qualifications

BS/MS/Ph.D. in Computer Engineering, Electrical Engineering, Computer Science or a related field
10+ years of experience in software development, with strong proficiency in C/C++ in Linux/Unix environments
Expertise in algorithm design, graph theory, and computational complexity
Demonstrated ability to profile, tune, and optimize performance-critical systems
Strong problem-solving skills, attention to detail, and ability to work independently on large codebases
Excellent communication skills and the ability to influence technical direction

Preferred Qualifications

Familiarity with SystemVerilog, EDA tools, and semiconductor design/verification flows
Experience with SAT/SMT solvers, constraint programming, or symbolic execution
Understanding of parallelism, multi-threading, and scalable system design
Prior contributions to verification tools or formal methods frameworks

Why us?

Working at Siemens Software means flexibility - Choosing between working at home and the office at other times is the norm here. We offer great benefits and rewards, as you'd expect from a world leader in industrial software.

A collection of over 377,000 minds building the future, one day at a time in over 200 countries. We're dedicated to equality, and we welcome applications that reflect the diversity of the communities we work in. All employment decisions at Siemens are based on qualifications, merit, and business need. Bring your curiosity and creativity and help us shape tomorrow!

Siemens Software. Transform the Everyday

The salary range for this position is $151,300 to $272,400 and this role is eligible to earn incentive compensation. The actual compensation offered is based on the successful candidate’s work location as well as additional factors, including job-related skills, experience, and relevant education/training. Siemens offers a variety of health and wellness benefits to employees. Details regarding our benefits can be found here: www.benefitsquickstart.com. In addition, this position is eligible for time off in accordance with Company policies, including paid sick leave, paid parental leave, PTO (for non-exempt employees) or non-accrued flexible vacation (for exempt employees).

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Criminal History
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