Software Engineer Jobs at Molex with Visa Sponsorship
Molex hires Software Engineers across embedded systems, connectivity platforms, and enterprise tooling, and has a consistent track record of sponsoring work visas for this function. If you're on OPT, holding an H-1B, or exploring TN eligibility, Molex actively supports international candidates through the full hiring and sponsorship process.
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Get Access To All JobsINTRODUCTION
Molex is a global leader in the optical industry, renowned for delivering high-performance, field-proven wavelength management solutions. Our expertise spans components, modules, integrated line-cards, and chassis, with a strong focus on innovation, miniaturization, and manufacturing automation. Our advanced optical, mechanical, electrical, and software design capabilities support the evolving needs of high-density, high-bandwidth, and flexible optical networks across telecom, datacom, hyperscale datacenters, artificial intelligence, and supercomputing.
We are seeking a Software Development Engineer to join our Optical Line Systems (OLS) Product Development team with a primary focus on large-scale system simulation and digital twin platforms. This role emphasizes building scalable simulation environments that model complex optical network behavior without reliance on physical hardware. AI and LLM-based techniques are used as enablers on top of simulation, rather than being the primary focus. You will develop hardware-independent simulation platforms that support system validation, what-if analysis, and accelerated development cycles-forming the foundation for future AI-assisted and autonomous workflows.
This role can be based in the United States and Canada with travel to our Fremont office and global regions.
What You Will Do
- Design and develop large-scale system simulation frameworks and digital twins for optical network systems.
- Build hardware-independent simulation environments to support software validation, system-level testing, and failure analysis.
- Model complex, distributed system behaviors and interactions.
- Enable simulation-driven validation for DVT/SVT and system integration testing.
- Integrate simulation platforms into CI/CD and automated validation workflows.
- Collaborate with system, validation, and test teams to translate real-world issues into simulation models.
- Leverage AI/LLM techniques to assist with simulation orchestration, analysis, and insight generation when applicable.
- Ensure high code quality, scalability, and maintainability of simulation platforms.
BASIC QUALIFICATIONS
- Master's or PhD in Computer Science, Software Engineering, Electrical Engineering, or related field with strong system focus
- At least 5 years of hands-on software development experience in system simulation, modeling, or complex software platforms
- Experience designing large-scale system simulation frameworks
- Experience building simulation environments to support software validation, system-level testing, and failure analysis
- Strong proficiency in Python and software development for data- and compute-intensive systems
- Experience building production-quality simulation or modeling software
- Solid software engineering fundamentals: testing, version control, documentation, and maintainable design
- Must have experience working in manufacturing/production industry
PREFERRED QUALIFICATIONS
- Experience with digital twins, simulation-driven testing, or system modeling tools
- Exposure to AI/ML or LLMs applied to analysis or automation (not required to be primary expert)
- Background in networking, telecom, optical systems, or large-scale infrastructure
- Familiarity with CI/CD pipelines, containers, or cloud-native environments
- Interest in enabling AI-assisted and autonomous system validation
COMPENSATION
- Salary Range: $170,000 - $250,000 per year
This role is eligible for variable pay, issued as a monetary bonus or in another form.
At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.
HIRING PHILOSOPHY
All Koch companies value diversity of thought, perspectives, aptitudes, experiences, and backgrounds. We are Military Ready and Second Chance employers. Learn more about our hiring philosophy here.
WHO WE ARE
At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.
OUR BENEFITS
Our goal is for each employee, and their families, to live fulfilling and healthy lives. We provide essential resources and support to build and maintain physical, financial, and emotional strength - focusing on overall wellbeing so you can focus on what matters most. Our benefits plan includes - medical, dental, vision, flexible spending and health savings accounts, life insurance, ADD, disability, retirement, paid vacation/time off, educational assistance, and may also include infertility assistance, paid parental leave and adoption assistance. Specific eligibility criteria is set by the applicable Summary Plan Description, policy or guideline and benefits may vary by geographic region. If you have questions on what benefits apply to you, please speak to your recruiter.
Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results.
EQUAL OPPORTUNITIES
Equal Opportunity Employer, including disability and protected veteran status. Except where prohibited by state law, some offers of employment are conditioned upon successfully passing a drug test. This employer uses E-Verify. Please click here for additional information. (For Illinois E-Verify information click here, aquí, or tu).
INTRODUCTION
Molex is a global leader in the optical industry, renowned for delivering high-performance, field-proven wavelength management solutions. Our expertise spans components, modules, integrated line-cards, and chassis, with a strong focus on innovation, miniaturization, and manufacturing automation. Our advanced optical, mechanical, electrical, and software design capabilities support the evolving needs of high-density, high-bandwidth, and flexible optical networks across telecom, datacom, hyperscale datacenters, artificial intelligence, and supercomputing.
We are seeking a Software Development Engineer to join our Optical Line Systems (OLS) Product Development team with a primary focus on large-scale system simulation and digital twin platforms. This role emphasizes building scalable simulation environments that model complex optical network behavior without reliance on physical hardware. AI and LLM-based techniques are used as enablers on top of simulation, rather than being the primary focus. You will develop hardware-independent simulation platforms that support system validation, what-if analysis, and accelerated development cycles-forming the foundation for future AI-assisted and autonomous workflows.
This role can be based in the United States and Canada with travel to our Fremont office and global regions.
What You Will Do
- Design and develop large-scale system simulation frameworks and digital twins for optical network systems.
- Build hardware-independent simulation environments to support software validation, system-level testing, and failure analysis.
- Model complex, distributed system behaviors and interactions.
- Enable simulation-driven validation for DVT/SVT and system integration testing.
- Integrate simulation platforms into CI/CD and automated validation workflows.
- Collaborate with system, validation, and test teams to translate real-world issues into simulation models.
- Leverage AI/LLM techniques to assist with simulation orchestration, analysis, and insight generation when applicable.
- Ensure high code quality, scalability, and maintainability of simulation platforms.
BASIC QUALIFICATIONS
- Master's or PhD in Computer Science, Software Engineering, Electrical Engineering, or related field with strong system focus
- At least 5 years of hands-on software development experience in system simulation, modeling, or complex software platforms
- Experience designing large-scale system simulation frameworks
- Experience building simulation environments to support software validation, system-level testing, and failure analysis
- Strong proficiency in Python and software development for data- and compute-intensive systems
- Experience building production-quality simulation or modeling software
- Solid software engineering fundamentals: testing, version control, documentation, and maintainable design
- Must have experience working in manufacturing/production industry
PREFERRED QUALIFICATIONS
- Experience with digital twins, simulation-driven testing, or system modeling tools
- Exposure to AI/ML or LLMs applied to analysis or automation (not required to be primary expert)
- Background in networking, telecom, optical systems, or large-scale infrastructure
- Familiarity with CI/CD pipelines, containers, or cloud-native environments
- Interest in enabling AI-assisted and autonomous system validation
COMPENSATION
- Salary Range: $170,000 - $250,000 per year
This role is eligible for variable pay, issued as a monetary bonus or in another form.
At Koch companies, we are entrepreneurs. This means we openly challenge the status quo, find new ways to create value and get rewarded for our individual contributions. Any compensation range provided for a role is an estimate determined by available market data. The actual amount may be higher or lower than the range provided considering each candidate's knowledge, skills, abilities, and geographic location. If you have questions, please speak to your recruiter about the flexibility and detail of our compensation philosophy.
HIRING PHILOSOPHY
All Koch companies value diversity of thought, perspectives, aptitudes, experiences, and backgrounds. We are Military Ready and Second Chance employers. Learn more about our hiring philosophy here.
WHO WE ARE
At Koch, employees are empowered to do what they do best to make life better. Learn how our business philosophy helps employees unleash their potential while creating value for themselves and the company.
OUR BENEFITS
Our goal is for each employee, and their families, to live fulfilling and healthy lives. We provide essential resources and support to build and maintain physical, financial, and emotional strength - focusing on overall wellbeing so you can focus on what matters most. Our benefits plan includes - medical, dental, vision, flexible spending and health savings accounts, life insurance, ADD, disability, retirement, paid vacation/time off, educational assistance, and may also include infertility assistance, paid parental leave and adoption assistance. Specific eligibility criteria is set by the applicable Summary Plan Description, policy or guideline and benefits may vary by geographic region. If you have questions on what benefits apply to you, please speak to your recruiter.
Additionally, everyone has individual work and personal needs. We seek to enable the best work environment that helps you and the business work together to produce superior results.
EQUAL OPPORTUNITIES
Equal Opportunity Employer, including disability and protected veteran status. Except where prohibited by state law, some offers of employment are conditioned upon successfully passing a drug test. This employer uses E-Verify. Please click here for additional information. (For Illinois E-Verify information click here, aquí, or tu).
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Get Access To All JobsTips for Finding Software Engineer Jobs at Molex Jobs
Align your resume to connectivity domain experience
Molex builds hardware-adjacent software for connectors, sensors, and manufacturing systems. Highlighting experience in embedded software, industrial IoT, or firmware development signals direct relevance and shortens the gap between application and sponsorship conversation.
Target roles in manufacturing-adjacent software teams
Molex posts Software Engineer openings tied to factory automation, connector design tools, and supply chain systems. These teams have stronger precedent for sponsorship than generalist corporate IT roles, and the specialty occupation argument for USCIS is cleaner.
Confirm E-Verify enrollment before accepting an offer
E-Verify participation is required for employers to onboard F-1 STEM OPT workers. Ask your Molex recruiter to confirm enrollment status before you start negotiating terms, so an administrative gap does not delay your start date.
Prepare documentation that supports a specialty occupation case
For H-1B approval, USCIS requires the role to normally demand a bachelor's degree in a specific technical field. Gather transcripts, degree certificates, and any credential evaluations early, especially if your engineering degree is from outside the United States.
Use Migrate Mate to filter open Software Engineer roles by sponsorship type
Not every Molex posting is tied to a team with active sponsorship capacity. Migrate Mate lets you filter Software Engineer openings by visa category so you surface roles where H-1B or Green Card sponsorship is already in scope.
Software Engineer at Molex jobs are hiring across the US. Find yours.
Find Software Engineer at Molex JobsFrequently Asked Questions
Does Molex sponsor H-1B visas for Software Engineers?
Yes, Molex sponsors H-1B visas for Software Engineers. The company has filed H-1B petitions for technical roles on a recurring basis, which reflects an established internal process for managing petitions, Labor Condition Applications through DOL, and USCIS filings. Your strongest path is through engineering teams working on embedded systems, manufacturing software, or connectivity platforms, where the specialty occupation argument is well-defined.
How do I apply for Software Engineer jobs at Molex?
You can apply directly through Molex's careers site or browse open Software Engineer positions on Migrate Mate, which filters roles by visa sponsorship type so you can target openings aligned with your authorization status. When applying, tailor your resume to the specific team's domain, whether that's firmware, industrial automation, or enterprise software, since Molex hires across several distinct engineering functions.
Which visa types does Molex commonly use for Software Engineer roles?
Molex sponsors H-1B visas as the primary long-term work authorization path for Software Engineers. The company also supports F-1 OPT and F-1 CPT for students and recent graduates, TN visas for Canadian and Mexican nationals in qualifying engineering roles, J-1 for certain training or exchange arrangements, and pursues EB-2 and EB-3 Green Card sponsorship for employees on a longer-term track.
What qualifications does Molex expect for Software Engineer roles?
Most Molex Software Engineer postings require a bachelor's degree in computer science, electrical engineering, or a closely related field. Roles in embedded systems or manufacturing software often expect hands-on experience with C, C++, or Python, and familiarity with hardware interfaces or industrial protocols is a differentiator. USCIS requires the role to demand a specific degree field for H-1B eligibility, so a degree-to-role match strengthens your petition.
How do I time my H-1B sponsorship if I'm currently on F-1 OPT at Molex?
USCIS accepts H-1B petitions starting April 1 each year, with an October 1 start date if selected in the lottery. If your OPT expires before October 1, you'll need a STEM OPT extension, which provides up to 24 additional months of work authorization and requires your employer to be E-Verify enrolled. Coordinate the extension application with Molex's HR team at least 90 days before your current OPT end date.
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