STEM OPT Integration Engineer Jobs
Integration Engineer roles qualify for the STEM OPT extension when your degree falls under an eligible CIP code, giving you up to 24 additional months of work authorization beyond your initial OPT. Your employer must be enrolled in E-Verify, and you'll need a signed I-983 training plan before your extension begins.
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Get Access To All JobsLiquidPiston - Genset Mechanical Integration Engineer
This role is fully onsite in Bloomfield, CT, five days per week, and the company will be relocating to Suffield, CT later in 2026.
LiquidPiston is reinventing the internal combustion engine. Their patented X-engine architecture is a compact, lightweight, and fuel-efficient rotary engine that operates on a novel thermodynamic cycle. With applications in defense, aerospace, robotics, and portable power, we’re developing the next generation of high-performance, compact engines for critical power systems.
Position Overview:
We’re seeking a Mechanical Integration Engineer as a part of the genset application development team to play a key role in the design, integration, and development of innovative gensets based on our advanced rotary engines. This is a hands-on, high-impact engineering role ideal for someone with a deep understanding of engine systems and packaging, a passion for innovation, and a strong background in mechanical design and simulation.
Key Responsibilities:
- Generate and evaluate new ideas to improve Packaging, durability, and manufacturability and reduce the weight of LiquidPiston’s rotary engine based gensets.
- Create detailed part and assembly models using SolidWorks.
- Lead early-stage genset architecture and layout processes.
- Perform component and system-level analysis using a combination of hand calculations, simulation tools, and experimental data.
- Create and release production-ready technical drawings.
- Work from requirements document to find appropriate components for assembly.
- Aid senior engineers in developing requirements for new projects.
- Work with electrical engineering team to package electrical systems into modules.
- Select and coordinate with suppliers, contractors and machine shops—from RFQ to incoming inspection.
- Support and oversee the genset’s assembly processes; contribute to hands-on prototyping.
- Participate in genset testing and interpret results to inform design iterations.
- Create and maintain standardized procedures for system design, analysis, and documentation.
- Develop and implement subsystem test plans in conjunction with technicians.
- Present technical ideas and results clearly to both technical and non-technical stakeholders.
- Maintain a collaborative, proactive, and positive engineering mindset.
Qualifications:
- BS or higher in Mechanical Engineering.
- 2+ years of experience in engine component/system design and simulation.
- Experience in integrating multiple subsystems into a full package.
- Strong understanding of internal combustion engine packaging and design for manufacturing.
- Proficient in SolidWorks (modeling and assemblies).
- Experience with mechanical simulation tools (e.g., ANSYS).
- Ability to work independently, solve problems, and communicate results effectively.
Preferred qualifications:
- Demonstrated previous experience in tight space packaging (engine bays, gensets etc.).
- Familiarity with packaging and integration of electrical components and design of electronic enclosures.
- Previous experience with design for MIL-STD-810 and MIL-STD-1472 conformity.
Benefits & Perks:
- Flexible PTO: We value work-life balance and encourage time to rest and recharge.
- Health & Wellness: Comprehensive medical, dental, and vision coverage. You choose what works best for you.
- Equity Participation: Permanent employees receive RSUs to share in our success.
- 401(k) Match: We offer a 401k w/100% matching up to 3% of your salary and then 50% of contributions between 3-5%.
- Career Growth: Ongoing training, mentorship, and learning opportunities to accelerate your growth.
Our Culture:
At LiquidPiston, we embrace challenges, move fast, and celebrate curiosity. Our team thrives on collaboration, creativity, and perseverance. We understand that innovation involves risk and we’re not afraid to fail forward.
Equal Opportunity Employer:
LiquidPiston, Inc. is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.
All offers of employment at LiquidPiston are contingent upon the successful completion of a pre-employment background check and drug screening.
LiquidPiston - Genset Mechanical Integration Engineer
This role is fully onsite in Bloomfield, CT, five days per week, and the company will be relocating to Suffield, CT later in 2026.
LiquidPiston is reinventing the internal combustion engine. Their patented X-engine architecture is a compact, lightweight, and fuel-efficient rotary engine that operates on a novel thermodynamic cycle. With applications in defense, aerospace, robotics, and portable power, we’re developing the next generation of high-performance, compact engines for critical power systems.
Position Overview:
We’re seeking a Mechanical Integration Engineer as a part of the genset application development team to play a key role in the design, integration, and development of innovative gensets based on our advanced rotary engines. This is a hands-on, high-impact engineering role ideal for someone with a deep understanding of engine systems and packaging, a passion for innovation, and a strong background in mechanical design and simulation.
Key Responsibilities:
- Generate and evaluate new ideas to improve Packaging, durability, and manufacturability and reduce the weight of LiquidPiston’s rotary engine based gensets.
- Create detailed part and assembly models using SolidWorks.
- Lead early-stage genset architecture and layout processes.
- Perform component and system-level analysis using a combination of hand calculations, simulation tools, and experimental data.
- Create and release production-ready technical drawings.
- Work from requirements document to find appropriate components for assembly.
- Aid senior engineers in developing requirements for new projects.
- Work with electrical engineering team to package electrical systems into modules.
- Select and coordinate with suppliers, contractors and machine shops—from RFQ to incoming inspection.
- Support and oversee the genset’s assembly processes; contribute to hands-on prototyping.
- Participate in genset testing and interpret results to inform design iterations.
- Create and maintain standardized procedures for system design, analysis, and documentation.
- Develop and implement subsystem test plans in conjunction with technicians.
- Present technical ideas and results clearly to both technical and non-technical stakeholders.
- Maintain a collaborative, proactive, and positive engineering mindset.
Qualifications:
- BS or higher in Mechanical Engineering.
- 2+ years of experience in engine component/system design and simulation.
- Experience in integrating multiple subsystems into a full package.
- Strong understanding of internal combustion engine packaging and design for manufacturing.
- Proficient in SolidWorks (modeling and assemblies).
- Experience with mechanical simulation tools (e.g., ANSYS).
- Ability to work independently, solve problems, and communicate results effectively.
Preferred qualifications:
- Demonstrated previous experience in tight space packaging (engine bays, gensets etc.).
- Familiarity with packaging and integration of electrical components and design of electronic enclosures.
- Previous experience with design for MIL-STD-810 and MIL-STD-1472 conformity.
Benefits & Perks:
- Flexible PTO: We value work-life balance and encourage time to rest and recharge.
- Health & Wellness: Comprehensive medical, dental, and vision coverage. You choose what works best for you.
- Equity Participation: Permanent employees receive RSUs to share in our success.
- 401(k) Match: We offer a 401k w/100% matching up to 3% of your salary and then 50% of contributions between 3-5%.
- Career Growth: Ongoing training, mentorship, and learning opportunities to accelerate your growth.
Our Culture:
At LiquidPiston, we embrace challenges, move fast, and celebrate curiosity. Our team thrives on collaboration, creativity, and perseverance. We understand that innovation involves risk and we’re not afraid to fail forward.
Equal Opportunity Employer:
LiquidPiston, Inc. is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability.
All offers of employment at LiquidPiston are contingent upon the successful completion of a pre-employment background check and drug screening.
See all 145+ STEM OPT Integration Engineer Jobs
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Get Access To All JobsTips for Finding STEM OPT Authorization as an Integration Engineer
Verify your CIP code before applying
Check your degree's Classification of Instructional Programs code against the DHS STEM Designated Degree Program List. Degrees in computer engineering, systems engineering, and electrical engineering typically qualify, but your DSO confirms the exact match before you file.
Filter job postings by E-Verify status
Ask recruiters directly whether their company is enrolled in E-Verify before your first interview. STEM OPT requires E-Verify enrollment as a condition of the extension, and discovering a gap at the offer stage wastes both parties' time.
Build your I-983 training plan around integration-specific deliverables
Your I-983 must tie learning objectives to concrete engineering tasks: system interface design, API integration cycles, middleware configuration. Vague goals get flagged by your DSO. Draft the plan with your hiring manager before your extension start date.
Research prevailing wages before negotiating your offer
Integration Engineer wages vary by metro area and experience tier. Run your job title and location through the OFLC Wage Search to see DOL wage levels before you counter. This also signals to employers you understand the compliance context of sponsored roles.
Target employers with existing H-1B filing history
Employers who have filed H-1B visa petitions for engineering roles are already familiar with federal immigration compliance. Use Migrate Mate to find Integration Engineer roles at companies with verified sponsorship histories, so your STEM OPT job search starts with the highest-probability matches.
Understand cap-gap protection if your H-1B is selected
If your employer files an H-1B petition before your OPT expires and you're selected in the lottery, cap-gap rules extend your STEM OPT work authorization through September 30 of the fiscal year. File your I-765 renewal through USCIS well before your EAD expires to avoid a gap.
Frequently Asked Questions
Does my degree qualify me for the STEM OPT extension as an Integration Engineer?
Your degree qualifies if it appears on the DHS STEM Designated Degree Program List. Degrees in computer engineering, electrical engineering, computer science, and systems engineering commonly support Integration Engineer roles. Your DSO verifies the CIP code match and approves the I-20 extension. If your degree is in a borderline field, your DSO can review the official DHS list to confirm eligibility before you accept an offer.
What E-Verify requirement applies to my STEM OPT employer?
Every employer who hires you on a STEM OPT extension must be enrolled in E-Verify for the specific site where you work. Enrollment at the company level isn't enough if your worksite is a subsidiary or separate location. Confirm enrollment status directly with your HR contact or ask them to provide their E-Verify company ID before you sign an offer letter.
What goes into the I-983 training plan for an Integration Engineer role?
Your I-983 must describe how the job provides practical training related to your STEM degree. For Integration Engineers, that means listing specific learning goals tied to your work: designing system interfaces, managing API pipelines, configuring middleware, or building CI/CD workflows. Goals must connect directly to your degree field. Your hiring manager co-signs the form, and your DSO must approve it before USCIS processes your extension.
How does cap-gap protection work if I'm on STEM OPT and get selected in the H-1B lottery?
Cap-gap automatically extends your STEM OPT work authorization if your employer files an H-1B petition by April 1 and you're selected in the lottery. Your authorization continues through September 30, even if your current EAD would expire earlier. You don't need a new EAD for this period, but you do need your employer to file on time. USCIS issues a cap-gap extension notice you can use as proof of continued authorization.
Where can I find Integration Engineer jobs at employers who support STEM OPT?
Migrate Mate lists Integration Engineer roles at employers with verified E-Verify enrollment and H-1B filing history, so you're not sorting through postings blind. You can also cross-reference the O*NET occupation profile for Integration Engineer to understand which related job titles fall under the same SOC code, which broadens your search without changing your eligibility.