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Added 6 mins ago
Malware Reverse Engineer
Accenture
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…analysis and operational intelligence capability. You will reverse engineer complex malware, unpacking sophisticated samples to uncover behavior, infrastructure, and adversary tradecraft.…
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B&
Civil Project Manager - Aviation
Bolton & Menk, Inc.
Greenwood Village, CO
- $31,533 USD / year
There's life at work and life outside of work. Bolton & Menk has a number of benefit programs and amenities to support you and your family throughout whatever stage of life you are in.
Added 44 mins ago
ICBM-S - Principal Systems Engineer - Data Analyst
Northrop Grumman
Clearfield, UT
Northrop Grumman Defense Systems currently has an opening for a Principal Systems Engineer . This position is located in Clearfield, UT and will support ICBM – Sustainment.
Added 44 mins ago
Maintenance Leader
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WEST JORDAN, UT
…consists of 3 roles: Line Leader, Maintenance Leader and Process Engineer. The role of the Maintenance Leader is to champion equipment reliability and performance for the assigned line is…
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Senior Mainframe Engineer FNTS (Remote/Work From Home)
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…fits into our organization's success. The Senior Mainframe Engineer plays a critical role within our managed services engineering team, providing technical leadership and driving…
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Project Engineer
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Lead Engineer I, Tech Product Manager
KPMG LLP
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Senior Integration Engineer
Steampunk
Remote, United States
As a Senior Integration Engineer, you will work with our growing DevSecOps practice developing APIs and integration capabilities to connect data, services, and systems to help our customers…
Added 52 mins ago
Integration Engineering Architect
Steampunk
Remote, United States
Design reusable assets, components, standards, frameworks, and processes to support and facilitate API and integration projects.
Added 52 mins ago
Integration Engineering Architect
Steampunk
Remote, United States
Design reusable assets, components, standards, frameworks, and processes to support and facilitate API and integration projects.
Added 1 hour ago
Desktop Support Engineer
HealthVerity
Philadelphia, PA
We’re seeking an experienced Desktop Support Engineer to serve as our team’s Microsoft Windows administration expert and primary hands-on technical support resource for our Windows laptop…
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QA Test Lab Engineer
Carrier
Kennesaw, GA
- $64,500 to $129,500 USD / year
We are seeking a Test Lab Engineer to build, configure, and maintain building automation test rigs and systems for developers and T&I (test and integration) engineers. You will apply field…
Added 1 hour ago
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Campus Graduate Masters Summer Internship Program - 2027 AI Engineer, Enterprise Technology Services- Atlanta, GA
American Express
Atlanta, GA
- $24.05 to $63 USD / hour
…efficiency, and drive competitive differentiation with speed. We support the delivery and operations of technology, digital, and data capabilities, platforms, and services globally.…
Added 1 hour ago
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Campus Graduate Masters Full-Time Engineer - 2027 AI Engineer I, Enterprise Technology Services- Atlanta, GA
American Express
Atlanta, GA
- $78,000 to $124,750 USD / year
- Full-time
…efficiency, and drive competitive differentiation with speed. We support the delivery and operations of technology, digital, and data capabilities, platforms, and services globally.…
Added 1 hour ago
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Campus Undergraduate Full-Time Engineer - 2027 AI Engineer I, Enterprise Technology Services- Atlanta, GA
American Express
Atlanta, GA
- $78,000 to $124,750 USD / year
- Full-time
…efficiency, and drive competitive differentiation with speed. We support the delivery and operations of technology, digital, and data capabilities, platforms, and services globally.…
Added 1 hour ago
Systems Engineer / Principal Systems Engineer (AHT)
Northrop Grumman
Manhattan Beach, CA
Northrop Grumman Defense Systems sector (NGDS) is seeking a Systems Engineer or Principal Systems Engineer to join our growing team of diverse professionals. The candidate will support…
Added 1 hour ago
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- $40,000 to $80,000 USD / year
Added 1 hour ago
Software Engineer- Simulation Models
Cisco
Milpitas, CA
Providing timely and effective technical support to engineering teams.
Added 1 hour ago
Autonomy Engineering Manager - Millennium Space Systems
The Boeing Company
El Segundo, CA
This position's internal job code is Systems Engineer Manager. Our team is currently hiring for Level K.
Added 1 hour ago
Astrodynamics Engineer (Entry-Level) - Millennium Space Systems
The Boeing Company
El Segundo, CA
As an Astrodynamics Engineer, you will support execution of technical design, analysis, and operation for a given program, study, or proposal. You will run orbital analysis tools under the…
Added 1 hour ago
Spacecraft Thermal Engineer (Early Career) - Millennium Space Systems
The Boeing Company
El Segundo, CA
Thermal Engineers support the Spacecraft Development Program Managers and Chief Systems Engineer through the development of all spacecraft thermal system configurations, designs, analyses,…
Added 1 hour ago
Configuration Management Specialist
Trinzic
El Segundo, CA
…(SE&I) for the US Space Force’s Space Systems Center (SSC). We support the Space Force’s acquisition of state of the art satellite communications systems, providing global secure,…
Added 1 hour ago
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Campus Undergraduate Full-Time Engineer - 2027 AI Engineer I, Enterprise Technology Services- Palo Alto, CA
American Express
Palo Alto, CA
- $78,000 to $124,750 USD / year
- Full-time
…efficiency, and drive competitive differentiation with speed. We support the delivery and operations of technology, digital, and data capabilities, platforms, and services globally.…
Added 1 hour ago
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Campus Graduate Masters Full-Time Engineer - 2027 AI Engineer I, Enterprise Technology Services- Palo Alto, CA
American Express
Palo Alto, CA
- $78,000 to $124,750 USD / year
- Full-time
…efficiency, and drive competitive differentiation with speed. We support the delivery and operations of technology, digital, and data capabilities, platforms, and services globally.…
Added 1 hour ago
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Electrical Estimator - Electrical Construction
Kiewit
Irvine, CA
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Maintain district standards for control budgets and develop project level staffing plan to ensure the project has adequate support after award.

Cisco

Software Engineer- Simulation Models

Milpitas, CA, United States

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Job details

Posting language: English
Posted: Aug 31, 2026

Original job description

The application window is expected to close on: 11/07/2026

Meet the Team

We develop advanced simulation platforms and digital twins that mirror complex IOS-XR routing environments for scalable, high-fidelity network validation. Our team bridges the gap between software engineering and field deployment by automating CI/CD testing pipelines and providing robust virtualization tools for developers and customers. We are dedicated to pioneering the future of network reliability through high-speed simulation, ensuring seamless performance across the most demanding service provider infrastructures.

Your Impact

You will define, design, develop, test, debug, release, enhance, and maintain software that accelerates the development of Cisco IOS XR and SONiC. You will lead the implementation and optimization of simulation software and tools, develop digital twins for routing and artificial intelligence (AI) fabric products, and build large-scale distributed systems.

In this role, you will apply advanced theoretical and practical knowledge to create functional, system-level models for next-generation routing platforms. You will also have opportunities to contribute to open-source technologies and communities.

Your responsibilities will include:

Developing virtual board models for next-generation routing platforms.
Modeling field-programmable gate array (FPGA) application-specific integrated circuits (ASICs), devices, sensors, and related hardware components.
Integrating hardware component models and packet-processing models into virtual board environments.
Designing, implementing, and optimizing simulation software and development tools.
Developing digital twins of router and AI fabric products.
Building and maintaining reliable, large-scale distributed systems.
Developing automated tests and executing comprehensive regression testing to validate end-to-end system functionality.
Debugging simulation models, device drivers, and network operating system software.
Providing timely and effective technical support to engineering teams.
Contributing to relevant open-source projects and technologies.

Minimum Qualifications

Bachelors + 5 years of related experience, or Masters + 3 years of related experience, or PhD + 0 years of related experience in Computer Science, Computer Engineering, Electrical Engineering, or a related field
Two years of experience as a Software Engineer developing simulation models
Experience with system-on-chip (SoC) design and architecture.
Experience developing software using C++ in Linux environments.
Experience with continuous integration and continuous delivery (CI/CD) processes.
Experience using Python for test automation.
Experience debugging models, drivers, and operating systems.

Preferred Qualifications

Experience developing functional or system-level simulation models.
Experience modeling FPGAs, ASICs, sensors, or other hardware devices.
Experience integrating packet-processing models into virtual platforms.
Experience building large-scale distributed systems.
Experience with Cisco IOS XR, SONiC, or comparable network operating systems.
Strong analytical, debugging, and cross-functional collaboration skills.
Experience developing networking software.
Experience with chip modeling and performance analysis.

Why Cisco?

At Cisco, we’re revolutionizing how data and infrastructure connect and protect organizations in the AI era – and beyond. We’ve been innovating fearlessly for 40 years to create solutions that power how humans and technology work together across the physical and digital worlds. These solutions provide customers with unparalleled security, visibility, and insights across the entire digital footprint.

Fueled by the depth and breadth of our technology, we experiment and create meaningful solutions. Add to that our worldwide network of doers and experts, and you’ll see that the opportunities to grow and build are limitless. We work as a team, collaborating with empathy to make really big things happen on a global scale. Because our solutions are everywhere, our impact is everywhere.

We are Cisco, and our power starts with you.

Message to applicants applying to work in the U.S. and/or Canada:

The starting salary range posted for this position is $155,000.00 to $222,600.00 and reflects the projected salary range for new hires in this position in U.S. and/or Canada locations, not including incentive compensation*, equity, or benefits.

Individual pay is determined by the candidate's hiring location, market conditions, job-related skillset, experience, qualifications, education, certifications, and/or training. The full salary range for certain locations is listed below. For locations not listed below, the recruiter can share more details about compensation for the role in your location during the hiring process.

U.S. employees are offered benefits, subject to Cisco’s plan eligibility rules, which include medical, dental and vision insurance, a 401(k) plan with a Cisco matching contribution, paid parental leave, short and long-term disability coverage, and basic life insurance. Please see the Cisco careers site to discover more benefits and perks. Employees may be eligible to receive grants of Cisco restricted stock units, which vest following continued employment with Cisco for defined periods of time.

U.S. employees are eligible for paid time away as described below, subject to Cisco’s policies:

10 paid holidays per full calendar year, plus 1 floating holiday for non-exempt employees
1 paid day off for employee’s birthday, paid year-end holiday shutdown, and 4 paid days off for personal wellness determined by Cisco
Non-exempt employees** receive 16 days of paid vacation time per full calendar year, accrued at rate of 4.92 hours per pay period for full-time employees
Exempt employees participate in Cisco’s flexible vacation time off program, which has no defined limit on how much vacation time eligible employees may use (subject to availability and some business limitations)
80 hours of sick time off provided on hire date and each January 1st thereafter, and up to 80 hours of unused sick time carried forward from one calendar year to the next
Additional paid time away may be requested to deal with critical or emergency issues for family members
Optional 10 paid days per full calendar year to volunteer

For non-sales roles, employees are also eligible to earn annual bonuses subject to Cisco’s policies.

Employees on sales plans earn performance-based incentive pay on top of their base salary, which is split between quota and non-quota components, subject to the applicable Cisco plan. For quota-based incentive pay, Cisco typically pays as follows:

.75% of incentive target for each 1% of revenue attainment up to 50% of quota;
1.5% of incentive target for each 1% of attainment between 50% and 75%;
1% of incentive target for each 1% of attainment between 75% and 100%; and
Once performance exceeds 100% attainment, incentive rates are at or above 1% for each 1% of attainment with no cap on incentive compensation.

For non-quota-based sales performance elements such as strategic sales objectives, Cisco may pay 0% up to 125% of target. Cisco sales plans do not have a minimum threshold of performance for sales incentive compensation to be paid.

The applicable full salary ranges for this position, by specific state, are listed below:

New York City Metro Area:

$155,000.00 - $256,000.00

Non-Metro New York state & Washington state:

$138,100.00 - $227,900.00

For quota-based sales roles on Cisco’s sales plan, the ranges provided in this posting include base pay and sales target incentive compensation combined.

** Employees in Illinois, whether exempt or non-exempt, will participate in a unique time off program to meet local requirements.

Cisco is an Affirmative Action and Equal Opportunity Employer and all qualified applicants will receive consideration for employment without regard to race, color, religion, gender, sexual orientation, national origin, genetic information, age, disability, veteran status, or any other legally protected basis.

Cisco will consider for employment, on a case by case basis, qualified applicants with arrest and conviction records.

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