Mid Level Application Security Engineer Jobs
Mid level application security engineer jobs go to engineers ready to own security assessments end to end, drive remediation decisions with limited oversight, and mentor junior teammates on secure coding practices. Roles run across Technology & Software, Science & Research, and Investment & Asset Management, with 77% offering remote or hybrid flexibility, and employers like Anthropic, PwC, and Gemini hiring at this level now.
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About the Company
Gemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014, offering a wide range of simple, reliable, and secure crypto products and services to individuals and institutions in over 70 countries. Our mission is to unlock the next era of financial, creative, and personal freedom by providing trusted access to the decentralized future. We envision a world where crypto reshapes the global financial system, internet, and money to create greater choice, independence, and opportunity for all — bridging traditional finance with the emerging cryptoeconomy in a way that is more open, fair, and secure. As a publicly traded company, Gemini is poised to accelerate this vision with greater scale, reach, and impact.
The Department: Application Security
Gemini operates at the intersection of financial services and emerging technology where the consequences of security failure are measured in customer trust and regulatory standing. The Application Security (AppSec) team exists to make sure security is never an afterthought. We are on a mission to secure products at the time of thought and the time of build: at the product requirements doc, the technical architectural decision, at the line of code. We believe that security input is most valuable before the work is done and after-the-fact is too late and too expensive.
The Role: Senior Application Security Engineer
As a Senior Application Security Engineer on the Application Security team, you will be a trusted partner to engineering, product, and business teams across Gemini. You will help guide teams to design and build secure products while building systems and culture that embed security judgment into every team. Gemini is AI-first and AppSec builds the tools to make this vision secure.
Responsibilities:
- Lead secure design reviews, threat modeling, code review, and penetration testing for high-risk products such as crypto custody, trading systems, and payments
- Build and ship code: design and build AppSec tooling including AI agents for secure design and code review, AI-enhanced SAST/DAST pipelines, and automation that eliminates repeatable security toil
- Partner with engineering teams to remediate vulnerabilities and drive long-term improvements in secure coding practices
Minimum Qualifications:
- 5+ years of experience in application security or similar roles
- Ability to perform design reviews, threat modeling, secure code reviews, or penetration testing with an attacker mindset
- Experience building or meaningfully contributing to security tooling and automation
- Strong background in application security best practices and familiarity with common vulnerabilities (e.g. SSRF, race conditions, privilege escalations, etc.)
- Some background in development or scripting experience (Python, Scala, C++, or JavaScript) with the ability to read and write code
- Strong communication skills to influence without authority and the ability to collaborate on a cross-functional team with competing priorities
Preferred Qualifications:
- Experience building AI application security tooling using agents or skills
- Experience with supply chain security, common frameworks (SLSA, OWASP SPVS) and other CI/CD security controls
- Familiarity with highly regulated environments (financial services, fintech, crypto, or equivalent) and ability to understand business objectives, business context, and security risk
- Experience with preventing application security vulnerabilities at scale through secure design patterns, automated tooling, or frameworks
- Experience with microservice architectures and cloud-native environments
It Pays to Work Here
The compensation & benefits package for this role includes:
- Competitive starting pay
- A discretionary annual bonus
- Long-term incentive in the form of a new hire equity grant
- Comprehensive health plans
- 401K with company matching
- Paid Parental Leave
- Flexible time off
Salary Range: The base salary range for this role is between $140,000 - $200,000 in the State of New York, the State of California and the State of Washington. This range is not inclusive of our discretionary bonus or equity package. When determining a candidate’s compensation, we consider a number of factors including skillset, experience, job scope, and current market data.
In the United States, we offer a hybrid work approach at our hub offices, balancing the benefits of in-person collaboration with the flexibility of remote work. Expectations may vary by location and role, so candidates are encouraged to connect with their recruiter to learn more about the specific policy for the role. Employees who do not live near one of our hubs are part of our remote workforce.
At Gemini, we strive to build diverse teams that reflect the people we want to empower through our products, and we are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. Equal Opportunity is the Law, and Gemini is proud to be an equal opportunity workplace. If you have a specific need that requires accommodation, please let a member of the People Team know.
About the Company
Gemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014, offering a wide range of simple, reliable, and secure crypto products and services to individuals and institutions in over 70 countries. Our mission is to unlock the next era of financial, creative, and personal freedom by providing trusted access to the decentralized future. We envision a world where crypto reshapes the global financial system, internet, and money to create greater choice, independence, and opportunity for all — bridging traditional finance with the emerging cryptoeconomy in a way that is more open, fair, and secure. As a publicly traded company, Gemini is poised to accelerate this vision with greater scale, reach, and impact.
The Department: Application Security
Gemini operates at the intersection of financial services and emerging technology where the consequences of security failure are measured in customer trust and regulatory standing. The Application Security (AppSec) team exists to make sure security is never an afterthought. We are on a mission to secure products at the time of thought and the time of build: at the product requirements doc, the technical architectural decision, at the line of code. We believe that security input is most valuable before the work is done and after-the-fact is too late and too expensive.
The Role: Senior Application Security Engineer
As a Senior Application Security Engineer on the Application Security team, you will be a trusted partner to engineering, product, and business teams across Gemini. You will help guide teams to design and build secure products while building systems and culture that embed security judgment into every team. Gemini is AI-first and AppSec builds the tools to make this vision secure.
Responsibilities:
- Lead secure design reviews, threat modeling, code review, and penetration testing for high-risk products such as crypto custody, trading systems, and payments
- Build and ship code: design and build AppSec tooling including AI agents for secure design and code review, AI-enhanced SAST/DAST pipelines, and automation that eliminates repeatable security toil
- Partner with engineering teams to remediate vulnerabilities and drive long-term improvements in secure coding practices
Minimum Qualifications:
- 5+ years of experience in application security or similar roles
- Ability to perform design reviews, threat modeling, secure code reviews, or penetration testing with an attacker mindset
- Experience building or meaningfully contributing to security tooling and automation
- Strong background in application security best practices and familiarity with common vulnerabilities (e.g. SSRF, race conditions, privilege escalations, etc.)
- Some background in development or scripting experience (Python, Scala, C++, or JavaScript) with the ability to read and write code
- Strong communication skills to influence without authority and the ability to collaborate on a cross-functional team with competing priorities
Preferred Qualifications:
- Experience building AI application security tooling using agents or skills
- Experience with supply chain security, common frameworks (SLSA, OWASP SPVS) and other CI/CD security controls
- Familiarity with highly regulated environments (financial services, fintech, crypto, or equivalent) and ability to understand business objectives, business context, and security risk
- Experience with preventing application security vulnerabilities at scale through secure design patterns, automated tooling, or frameworks
- Experience with microservice architectures and cloud-native environments
It Pays to Work Here
The compensation & benefits package for this role includes:
- Competitive starting pay
- A discretionary annual bonus
- Long-term incentive in the form of a new hire equity grant
- Comprehensive health plans
- 401K with company matching
- Paid Parental Leave
- Flexible time off
Salary Range: The base salary range for this role is between $140,000 - $200,000 in the State of New York, the State of California and the State of Washington. This range is not inclusive of our discretionary bonus or equity package. When determining a candidate’s compensation, we consider a number of factors including skillset, experience, job scope, and current market data.
In the United States, we offer a hybrid work approach at our hub offices, balancing the benefits of in-person collaboration with the flexibility of remote work. Expectations may vary by location and role, so candidates are encouraged to connect with their recruiter to learn more about the specific policy for the role. Employees who do not live near one of our hubs are part of our remote workforce.
At Gemini, we strive to build diverse teams that reflect the people we want to empower through our products, and we are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. Equal Opportunity is the Law, and Gemini is proud to be an equal opportunity workplace. If you have a specific need that requires accommodation, please let a member of the People Team know.
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- Investment & Asset Management4
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Mid Level Application Security Engineer Jobs: Frequently Asked Questions
How do I get a mid level application security engineer job?
Position your existing experience around ownership, not just participation. Highlight security features or assessments you led, vulnerabilities you found and remediated, and any secure development lifecycle work you drove independently. Tailor your resume to show depth in one or two specializations, such as penetration testing or threat modeling, rather than listing every tool you have touched. Concrete outcomes, like reducing critical findings or improving deployment security, land interviews at this level.
Which companies hire mid level application security engineers?
Companies hiring mid level application security engineers right now include Anthropic, PwC, and Gemini, based on current listings on Migrate Mate as of August 2026. Hiring at this level covers large technology firms, financial services companies, healthcare organizations, and defense contractors, all of which need engineers who can own security programs with limited supervision.
Are there remote mid level application security engineer jobs?
Yes, and the share is significant for this role. About 77% of mid level application security engineer openings are remote or hybrid as of August 2026, reflecting how much of the work, code review, threat modeling, and vulnerability analysis, can be done effectively without being on site. Fully on-site roles tend to cluster in regulated industries like defense and government contracting.
How do I move up to a mid level application security engineer role?
Growth into mid level comes from taking on projects rather than tasks. Early in your career, focus on deepening one domain, such as web application security or cloud security posture, until you can work through problems independently. Seek out opportunities to own a full assessment or lead a security initiative, document the measurable outcomes, and build familiarity with secure development workflows inside real product teams. That pattern of demonstrated ownership is what hiring managers look for when evaluating mid level candidates.
Which industries hire the most mid level application security engineers?
Mid Level application security engineer roles concentrate in Technology & Software, Science & Research, and Investment & Asset Management, based on current listings on Migrate Mate as of August 2026. These sectors handle sensitive user data, face strict compliance requirements, or build software at scale, all of which create sustained demand for engineers who can identify and remediate application risks without constant oversight.