CPT Security Software Engineer Jobs
Security Software Engineer roles fit CPT when your coursework covers secure systems design, cryptography, or vulnerability analysis and your DSO confirms the work is an integral part of your degree. Most programs authorize CPT for full-time summer positions or part-time roles during the academic year, but authorization must be in place before your first day.
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About the Team
The team is missioned to build infrastructures, platforms and technologies, as well as to support cross-functional teams to protect our users, products and infrastructures. In this team you'll have a unique opportunity to have first-hand exposure to the strategy of the company in key security initiatives, especially in building scalable and secure-by-design systems and solutions. Our challenges are not your regular day-to-day technical problems; you'll be part of a team that's developing new solutions to new challenges of a kind not previously addressed by big tech. It's working fast, at scale, and we're making a difference. As a project intern, you will have the opportunity to engage in impactful short-term projects that provide you with a glimpse of professional real-world experience. You will gain practical skills through on-the-job learning in a fast-paced work environment and develop a deeper understanding of your career interests. Applications will be reviewed on a rolling basis - we encourage you to apply early. Successful candidates must be able to commit to at least 3 months long internship period.
Responsibilities:
- Participate in security assessments such as pentests on Web or mobile applications.
- Take part in tooling development projects with a security focus, such as code review and API testing. Tools developed will benefit LLM integration.
- Assist in building Evals, harnesses and optimisations on existing AI tooling & systems for Security Review.
- Improve the usage of LLM in the SDLC process and enhance the infrastructure security.
Qualifications
Minimum Qualifications
- Undergraduate, or Postgraduate who is currently pursuing a degree/master in Computer Science, Computer Engineering, Information Systems or other STEM disciplines
- Security engineering experience such as threat modeling, security mitigation development, security tooling development or privacy engineering.
- Understanding in various disciplines: web application security, mobile app security, network security, operating system internals and hardening, applied cryptography, cloud computing. You're expected to be an expert in at least one of these areas.
- Experience in writing and reviewing code in at least one of the following programming languages: JavaScript (Node JS), Go, Python, Java, C++, Rust.
- Strong problem-solving skills and excellent debugging / troubleshooting skills.
Preferred Qualifications
- Experience with NLP/LLM
- Knowledge of distributed systems, edge computing, or high-performance network programming
By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here: https://jobs.bytedance.com/en/legal/privacy.
Job Information
【For Pay Transparency】Compensation Description (Hourly) - Campus Intern
The hourly rate range for this position in the selected city is $45 - $60. Benefits may vary depending on the nature of employment and the country work location. Interns have day one access to health insurance, life insurance, wellbeing benefits and more. Interns also receive 10 paid holidays per year and paid sick time (56 hours if hired in first half of year, 40 if hired in second half of year). Interns who are not working 100% remote may also be eligible for housing allowance. 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
About the Team
The team is missioned to build infrastructures, platforms and technologies, as well as to support cross-functional teams to protect our users, products and infrastructures. In this team you'll have a unique opportunity to have first-hand exposure to the strategy of the company in key security initiatives, especially in building scalable and secure-by-design systems and solutions. Our challenges are not your regular day-to-day technical problems; you'll be part of a team that's developing new solutions to new challenges of a kind not previously addressed by big tech. It's working fast, at scale, and we're making a difference. As a project intern, you will have the opportunity to engage in impactful short-term projects that provide you with a glimpse of professional real-world experience. You will gain practical skills through on-the-job learning in a fast-paced work environment and develop a deeper understanding of your career interests. Applications will be reviewed on a rolling basis - we encourage you to apply early. Successful candidates must be able to commit to at least 3 months long internship period.
Responsibilities:
- Participate in security assessments such as pentests on Web or mobile applications.
- Take part in tooling development projects with a security focus, such as code review and API testing. Tools developed will benefit LLM integration.
- Assist in building Evals, harnesses and optimisations on existing AI tooling & systems for Security Review.
- Improve the usage of LLM in the SDLC process and enhance the infrastructure security.
Qualifications
Minimum Qualifications
- Undergraduate, or Postgraduate who is currently pursuing a degree/master in Computer Science, Computer Engineering, Information Systems or other STEM disciplines
- Security engineering experience such as threat modeling, security mitigation development, security tooling development or privacy engineering.
- Understanding in various disciplines: web application security, mobile app security, network security, operating system internals and hardening, applied cryptography, cloud computing. You're expected to be an expert in at least one of these areas.
- Experience in writing and reviewing code in at least one of the following programming languages: JavaScript (Node JS), Go, Python, Java, C++, Rust.
- Strong problem-solving skills and excellent debugging / troubleshooting skills.
Preferred Qualifications
- Experience with NLP/LLM
- Knowledge of distributed systems, edge computing, or high-performance network programming
By submitting an application for this role, you accept and agree to our global applicant privacy policy, which may be accessed here: https://jobs.bytedance.com/en/legal/privacy.
Job Information
【For Pay Transparency】Compensation Description (Hourly) - Campus Intern
The hourly rate range for this position in the selected city is $45 - $60. Benefits may vary depending on the nature of employment and the country work location. Interns have day one access to health insurance, life insurance, wellbeing benefits and more. Interns also receive 10 paid holidays per year and paid sick time (56 hours if hired in first half of year, 40 if hired in second half of year). Interns who are not working 100% remote may also be eligible for housing allowance. 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.
Security Software Engineer CPT: Frequently Asked Questions
Does a Security Software Engineer role qualify for CPT?
Yes, if your degree program includes coursework in areas like network security, cryptography, secure software development, or systems architecture and the job duties connect directly to that coursework. Your DSO makes the final determination. Roles involving penetration testing, security engineering, or vulnerability research tied to a specific course or capstone project are strong candidates for CPT authorization.
Can I do CPT at a startup that doesn't have an immigration attorney?
CPT authorization doesn't require employer immigration counsel because the process is school-driven. Your DSO issues the I-20 with the CPT authorization, and no employer filing goes to USCIS. The employer just needs to provide a formal offer letter with your start date, end date, job duties, and whether the position is full-time or part-time. Small security startups routinely hire CPT students without in-house legal support.
How do I find Security Software Engineer employers experienced with CPT hiring?
Search Migrate Mate for employers with LCA filing history in information security or software engineering roles. Companies that have sponsored H-1B visa or OPT workers in this field already understand work authorization timelines and documentation requirements, which means less friction when you present your CPT I-20. Defense contractors and federal IT vendors are also common CPT employers in this field because many run established internship pipelines.
Does full-time CPT as a Security Software Engineer affect my OPT?
Twelve or more months of full-time CPT eliminates your OPT eligibility. Part-time CPT, regardless of total duration, doesn't affect OPT at all. If you're planning to use OPT after graduation, count your full-time CPT months carefully. Many students in multi-year programs split CPT across part-time during semesters and full-time in summers specifically to stay under the 12-month threshold.
What job duties should appear on my offer letter for CPT authorization?
Your DSO needs to see duties that map to specific courses in your program. For Security Software Engineer roles, that means listing concrete tasks like implementing authentication protocols, conducting code audits, configuring intrusion detection systems, or performing threat modeling, not just 'software engineering.' The more precisely the offer letter reflects your actual coursework, the faster your DSO can confirm the integral curriculum connection and issue your CPT I-20.