Lead Senior Software Engineer - Platform Security at The Trade Desk | AdTechTalent
Engineering3 days agoOn-site
The Trade Desk
Lead Senior Software Engineer - Platform Security
securityplatform securitydistributed systemsauthenticationauthorizationidentity managementIAMinfrastructure as codecloudAzureAWSAliyunKubernetesC#JavaC++machine learningAImentorshipleadershipSREobservabilityincident response
Key details
Salary
$125K – $229K
Employment type
Full-time
Seniority
Lead
Years experience
5-10
Location
New York, US
Full job description
The Trade Desk seeks a Lead/Senior Software Engineer for Platform Security to lead design, implementation, and evolution of large-scale security services including authentication, authorization, identity, and secure access. The role involves technical leadership, mentoring, architectural decision-making, and incident response for security-critical systems operating globally. Requires 7+ years experience in high-scale environments, expertise in object-oriented languages (C#, Java, C++), distributed systems, infrastructure as code, and system reliability. Experience with Kubernetes, cloud platforms (Azure, AWS, Aliyun), and security engineering is preferred. The position is full-time, located in New York, and offers a salary range of $124,900 to $228,900 USD plus comprehensive benefits including healthcare, 401k, stock purchase plan, and paid time off.
What you'll do
Lead design, implementation, and long-term evolution of large-scale security services
Own complex initiatives spanning authentication, authorization, identity, and secure access
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Make and influence architectural decisions balancing security, reliability, scalability, and developer experience
Drive high-quality engineering practices including testing, observability, operational readiness, and incident response
Build and maintain shared libraries and frameworks standardizing authentication, authorization, and security best practices
Partner with engineers, SREs, and stakeholders to deliver secure-by-default platforms
Mentor and guide engineers through code reviews, design discussions, and technical leadership
Participate in on-call rotations and lead incident response for security-critical systems
Shape future initiatives including AI-driven systems for security posture and risk modeling
Operate comfortably in ambiguity and drive outcomes impacting the broader platform
Requirements
7+ years of experience in a high scale environment with infrastructure as code capabilities
Previous lead experience desired
Professional experience building and operating production systems using object-oriented languages such as C#, Java, or C++
Proven experience designing and delivering distributed systems at scale
Experience deploying and operating services using infrastructure-as-code and automated deployment pipelines
Deep understanding of system reliability, observability, and operational excellence
Experience leading technical design and influencing architecture across teams
Strong communication and collaboration skills with mentoring experience
Bachelor’s/Master’s degree in computer science or relevant engineering field or equivalent experience
Tech stack
C#JavaC++KubernetesAzureAWSAliyunSPIFFESPIREinfrastructure as codedistributed systemsmachine learningAI
Benefits
Comprehensive healthcare (medical, dental, vision) with premiums paid in full for employees and dependents401k plan with company matchShort and long-term disability coverageBasic life insuranceWell-being benefitsTuition reimbursementParental leaveSick time (1 hour per 30 hours worked)Vacation time up to 120 hours in first year, 160 hours thereafterAround 13 paid holidays per yearEmployee Stock Purchase Plan with discounted stock purchaseVariable compensation-based incentives and commissions depending on roleStock-based compensation grants based on company and individual performance
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