OPT Infrastructure Engineer Jobs
Infrastructure Engineer roles are consistently among the most OPT-friendly positions in tech, with employers regularly filing H-1B visa petitions for strong candidates. Most roles require a degree in computer science, information systems, or electrical engineering, and STEM OPT extensions apply, giving you up to three years of work authorization.
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Our team develops the core training and serving infrastructure that powers one of the world's largest recommendation systems, enabling billions of personalized recommendations every day. We are also advancing the next generation of AI infrastructure for foundation models and LLMs, driving innovation in large-scale model training, online inference, and GPU optimization. As part of the team, you will work on distributed training and inference systems, high-performance GPU computing, and scalable LLM infrastructure. You'll collaborate closely with experienced engineers and researchers to transform cutting-edge AI technologies into production systems that directly impact the experience of hundreds of millions of TikTok users. This role is ideal for candidates who are passionate about LLM systems, distributed computing, GPU programming, and building AI systems at massive scale. We are looking for passionate talented individuals to join our Model Infrastructure team, building the next generation of infrastructure for TikTok's For You recommendation system and Large Language Models (LLMs). We are looking for talented individuals to join our team. As a graduate, you will get opportunities to pursue bold ideas, tackle complex challenges, and unlock limitless growth. Successful candidates must be able to commit to an onboarding date by the end of the year. Please state your availability and graduation date clearly in your resume. Candidates can apply to a maximum of two positions and will be considered for jobs in the order you apply. The application limit is applicable to our Company and its affiliates' jobs globally. Applications will be reviewed on a rolling basis - we encourage you to apply early.
Online Assessment
Candidates who pass resume screening will be invited to participate in Our Company's technical online assessment.
Responsibilities:
- Build and optimize infrastructure for large-scale model training and online inference.
- Develop distributed systems supporting large recommendation models and LLMs.
- Improve training and inference performance through GPU optimization and efficient communication.
- Collaborate with researchers to develop and deploy LLM training and serving solutions.
- Analyze system bottlenecks and implement performance optimizations.
Qualifications
Minimum Qualifications:
- Individuals who are completing or have recently completed a Bachelor's or Master's degree in Artificial Intelligence, Software Development, Computer Science, Computer Engineering or a related discipline.
- Strong programming skills in C++ or Python.
- Good understanding of data structures, algorithms, and computer systems.
- Familiarity with PyTorch or TensorFlow.
- Knowledge of Transformer architectures and Large Language Models (LLMs).
- Strong problem-solving skills and a passion for building large-scale AI systems.
Preferred Qualifications:
- Hands-on experience with LLM training or inference through research, internships, or open-source projects.
- Familiarity with distributed training concepts (e.g., DP, TP, PP, FSDP, ZeRO).
- Experience with GPU programming using CUDA, Triton, or similar technologies.
- Understanding of LLM serving techniques such as KV Cache, Continuous Batching, or FlashAttention.
- Contributions to open-source projects or research in machine learning systems, distributed systems, or LLM infrastructure.
By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here: https://careers.tiktok.com/legal/privacy
Job Information
【For Pay Transparency】Compensation Description (Annually)
The base salary range for this position in the selected city is $128000 - $256000 annually. Compensation may vary outside of this range depending on a number of factors, including a candidate’s qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units. Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure). The Company reserves the right to modify or change these benefits programs at any time, with or without notice.
For Los Angeles County (unincorporated) Candidates:
Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment:
- Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;
- Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and
- Exercising sound judgment.
About TikTok
TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.
Why Join Us
Inspiring creativity is at the core of TikTok's mission. Our innovative product is built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day. We strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are limitless. Join us.
Diversity & Inclusion
TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.
TikTok Accommodation
TikTok is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://tinyurl.com/RA-request
Responsibilities
Our team develops the core training and serving infrastructure that powers one of the world's largest recommendation systems, enabling billions of personalized recommendations every day. We are also advancing the next generation of AI infrastructure for foundation models and LLMs, driving innovation in large-scale model training, online inference, and GPU optimization. As part of the team, you will work on distributed training and inference systems, high-performance GPU computing, and scalable LLM infrastructure. You'll collaborate closely with experienced engineers and researchers to transform cutting-edge AI technologies into production systems that directly impact the experience of hundreds of millions of TikTok users. This role is ideal for candidates who are passionate about LLM systems, distributed computing, GPU programming, and building AI systems at massive scale. We are looking for passionate talented individuals to join our Model Infrastructure team, building the next generation of infrastructure for TikTok's For You recommendation system and Large Language Models (LLMs). We are looking for talented individuals to join our team. As a graduate, you will get opportunities to pursue bold ideas, tackle complex challenges, and unlock limitless growth. Successful candidates must be able to commit to an onboarding date by the end of the year. Please state your availability and graduation date clearly in your resume. Candidates can apply to a maximum of two positions and will be considered for jobs in the order you apply. The application limit is applicable to our Company and its affiliates' jobs globally. Applications will be reviewed on a rolling basis - we encourage you to apply early.
Online Assessment
Candidates who pass resume screening will be invited to participate in Our Company's technical online assessment.
Responsibilities:
- Build and optimize infrastructure for large-scale model training and online inference.
- Develop distributed systems supporting large recommendation models and LLMs.
- Improve training and inference performance through GPU optimization and efficient communication.
- Collaborate with researchers to develop and deploy LLM training and serving solutions.
- Analyze system bottlenecks and implement performance optimizations.
Qualifications
Minimum Qualifications:
- Individuals who are completing or have recently completed a Bachelor's or Master's degree in Artificial Intelligence, Software Development, Computer Science, Computer Engineering or a related discipline.
- Strong programming skills in C++ or Python.
- Good understanding of data structures, algorithms, and computer systems.
- Familiarity with PyTorch or TensorFlow.
- Knowledge of Transformer architectures and Large Language Models (LLMs).
- Strong problem-solving skills and a passion for building large-scale AI systems.
Preferred Qualifications:
- Hands-on experience with LLM training or inference through research, internships, or open-source projects.
- Familiarity with distributed training concepts (e.g., DP, TP, PP, FSDP, ZeRO).
- Experience with GPU programming using CUDA, Triton, or similar technologies.
- Understanding of LLM serving techniques such as KV Cache, Continuous Batching, or FlashAttention.
- Contributions to open-source projects or research in machine learning systems, distributed systems, or LLM infrastructure.
By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here: https://careers.tiktok.com/legal/privacy
Job Information
【For Pay Transparency】Compensation Description (Annually)
The base salary range for this position in the selected city is $128000 - $256000 annually. Compensation may vary outside of this range depending on a number of factors, including a candidate’s qualifications, skills, competencies and experience, and location. Base pay is one part of the Total Package that is provided to compensate and recognize employees for their work, and this role may be eligible for additional discretionary bonuses/incentives, and restricted stock units. Benefits may vary depending on the nature of employment and the country work location. Employees have day one access to medical, dental, and vision insurance, a 401(k) savings plan with company match, paid parental leave, short-term and long-term disability coverage, life insurance, wellbeing benefits, among others. Employees also receive 10 paid holidays per year, 10 paid sick days per year and 17 days of Paid Personal Time (prorated upon hire with increasing accruals by tenure). The Company reserves the right to modify or change these benefits programs at any time, with or without notice.
For Los Angeles County (unincorporated) Candidates:
Qualified applicants with arrest or conviction records will be considered for employment in accordance with all federal, state, and local laws including the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act. Our company believes that criminal history may have a direct, adverse and negative relationship on the following job duties, potentially resulting in the withdrawal of the conditional offer of employment:
- Interacting and occasionally having unsupervised contact with internal/external clients and/or colleagues;
- Appropriately handling and managing confidential information including proprietary and trade secret information and access to information technology systems; and
- Exercising sound judgment.
About TikTok
TikTok is the leading destination for short-form mobile video. At TikTok, our mission is to inspire creativity and bring joy. TikTok's global headquarters are in Los Angeles and Singapore, and we also have offices in New York City, London, Dublin, Paris, Berlin, Dubai, Jakarta, Seoul, and Tokyo.
Why Join Us
Inspiring creativity is at the core of TikTok's mission. Our innovative product is built to help people authentically express themselves, discover and connect – and our global, diverse teams make that possible. Together, we create value for our communities, inspire creativity and bring joy - a mission we work towards every day. We strive to do great things with great people. We lead with curiosity, humility, and a desire to make impact in a rapidly growing tech company. Every challenge is an opportunity to learn and innovate as one team. We're resilient and embrace challenges as they come. By constantly iterating and fostering an "Always Day 1" mindset, we achieve meaningful breakthroughs for ourselves, our company, and our users. When we create and grow together, the possibilities are limitless. Join us.
Diversity & Inclusion
TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.
TikTok Accommodation
TikTok is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at https://tinyurl.com/RA-request
See all 609+ OPT Infrastructure Engineer Jobs
Sign up for free to unlock all listings, filter by visa type, and get alerts for new OPT Infrastructure Engineer Jobs.
Get Access To All JobsTips for Finding OPT Sponsorship as an Infrastructure Engineer
Target companies with active H-1B filing histories
Employers who have sponsored H-1B visas for infrastructure roles in the past are far more likely to do it again. Check USCIS H-1B visa disclosure data to verify a company sponsors roles like yours before investing time in their application process.
Lead with your STEM OPT timeline upfront
Infrastructure Engineer roles fall squarely under STEM-designated CIP codes, making you eligible for a 24-month STEM OPT extension. Mentioning your full three-year authorization window early removes the biggest hesitation most hiring managers have about OPT candidates.
Emphasize cloud certifications on your resume
AWS, Azure, and GCP certifications signal job-ready skills that reduce employer onboarding costs. Certified candidates consistently move faster through infrastructure hiring pipelines, which matters when your OPT start date creates a narrow window for completing the process.
Apply to mid-size tech companies, not just large enterprises
Companies with 200 to 2,000 employees often have dedicated infrastructure teams but less competition than FAANG. They also tend to make faster hiring decisions, which reduces the risk of an offer arriving too late relative to your OPT authorization start date.
Frame your OPT period as immediate availability
Many infrastructure teams struggle to fill roles quickly. Positioning your OPT status as meaning you can start now, without waiting for a visa transfer or petition cycle, reframes the conversation from a compliance concern into a staffing advantage for the employer.
Build a portfolio of infrastructure projects with measurable outcomes
Concrete results, such as reduced deployment times, improved uptime percentages, or cost savings from cloud optimization, give hiring managers something defensible when advocating internally to HR about sponsoring an OPT candidate for a permanent role.
Infrastructure Engineer OPT: Frequently Asked Questions
Do Infrastructure Engineer roles qualify for the STEM OPT extension?
Yes. Infrastructure Engineering roles typically fall under STEM-designated degree programs including computer science, information technology, computer engineering, and electrical engineering. If your degree qualifies, you can apply for a 24-month STEM OPT extension after your initial 12-month OPT period, giving you up to three years of total work authorization without employer sponsorship of an H-1B.
How common is H-1B sponsorship for Infrastructure Engineer positions?
Infrastructure Engineer is one of the more consistently sponsored roles in tech. Employers regularly file H-1B petitions for these positions because demand for qualified candidates routinely outpaces domestic supply, particularly in cloud infrastructure, DevOps, and network engineering. Companies with existing infrastructure teams and a history of H-1B filings are your strongest targets. You can browse OPT-friendly infrastructure roles directly on Migrate Mate.
Can I work as an Infrastructure Engineer on OPT if my degree is in electrical engineering rather than computer science?
Yes, provided the role has a direct connection to your field of study. Infrastructure Engineering spans both software and hardware systems, and electrical engineering degrees are accepted for roles involving network architecture, data center operations, and embedded systems. Your DSO will need to confirm the position relates to your degree program when authorizing your OPT, so review the job description carefully before applying.
What should I do if an Infrastructure Engineer role requires a security clearance?
Most security clearances require U.S. citizenship or permanent residency, which OPT students do not hold. Roles requiring a clearance are effectively off-limits during OPT. Filter these out early by reading job descriptions carefully for language like "requires active clearance," "must be a U.S. citizen," or "clearance required." Focus instead on private-sector infrastructure roles, which represent the majority of open positions and have no clearance requirements.
Does the 90-day unemployment limit apply between infrastructure jobs on OPT?
Yes. F-1 students on OPT cannot accumulate more than 90 days of unemployment during the standard OPT period, and that limit increases to 150 days if you receive a STEM OPT extension. Infrastructure roles can sometimes have longer hiring cycles due to technical interviews and background checks, so starting your job search early and keeping your pipeline active is important for staying within the limit.