Senior Security Engineer

TriNet is a leading provider of comprehensive human resources solutions for small to midsize businesses (SMBs). We enhance business productivity by enabling our clients to outsource their HR function to one strategic partner and allowing them to focus on operating and growing their core businesses. Our full-service HR solutions include features such as payroll processing, human capital consulting, employment law compliance and employee benefits, including health insurance, retirement plans and workers’ compensation insurance.

TriNet has a nationwide presence and an experienced executive team. Our stock is publicly traded on the NYSE under the ticker symbol TNET. If you’re passionate about innovation and making an impact on the large SMB market, come join us as we power our clients’ business success with extraordinary HR.

Don't meet every single requirement? Studies have shown that many potential applicants discourage themselves from applying to jobs unless they meet every single requirement. TriNet always strives to hire the most qualified candidate for a particular role, ensuring we deliver outstanding results for our small and medium-size customers. So if you're excited about this role but your past experience doesn't align perfectly with every single qualification in the job description, nobody’s perfect - and we encourage you to apply. You may just be the right candidate for this or other roles.

Job Summary

The ideal candidate will have hands-on technical skills and be able to operate as a full stack software security engineer. The ideal candidate will have demonstrated broad experience in building enterprise level SaaS web applications and have strong communication and critical thinking skills for designing customer facing and internal user facing features and portal experience around a modern SaaS application.

ESSENTIAL DUTIES/RESPONSIBILITIES:

• Design, develop, and maintain secure authentication and authorization capabilities for enterprise SaaS applications.
• Develop and enhance full-stack application components using Python, Django, React, and GraphQL.
• Perform threat modeling, secure design reviews, and security-focused code reviews for new and existing capabilities.
• Identify security weaknesses and anti-patterns, especially within authentication and authorization implementations, and recommend practical remediation.
• Partner with software engineers, architects, and product teams to embed security requirements and secure engineering practices throughout the software development lifecycle.
• Design scalable security controls and automation using AWS services such as AWS Lambda and Amazon S3.
• Integrate third-party technologies and security services into SaaS applications while assessing security, reliability, and operational considerations.
• Translate security risks and technical findings into clear guidance, design documentation, and actionable engineering requirements.
• Contribute reusable patterns, standards, and guardrails that improve secure software development across engineering teams.
• Provide technical mentorship and influence engineering teams to consistently apply secure design and coding practices.

JOB REQUIREMENTS AND QUALIFICATIONS

Education:

• Bachelor's degree in computer science/engineering or equivalent education and/or related work experience

Training Requirements (licenses, programs, or certificates):

Experience:

• Must have 5+ years of professional software development experience, including hands-on development of enterprise or SaaS applications.

Other Knowledge, Skills and Abilities:

• Strong understanding of secure software design principles, common application vulnerabilities, and security design patterns.
• Ability to evaluate technical risk, identify root causes, and recommend solutions that balance security, scalability, and delivery needs.
• Strong analytical, problem-solving, and critical-thinking skills with a detail-oriented and quality-driven approach.
• Ability to produce clear technical designs, security requirements, and remediation guidance.
• Excellent written and verbal communication skills, including the ability to influence and collaborate across engineering, architecture, product, and security teams.
• Ability to work effectively in an agile environment, manage competing priorities, and take ownership from design through implementation.
• Commitment to high professional and ethical standards and to fostering an inclusive workplace.

Work Environment

• Work in a clean, pleasant, and comfortable office work setting. The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable persons with disabilities to perform the essential functions.
• This position is 100% in office.

Please Note: TriNet reserves the right to change or modify job duties and assignments at any time. The above job description is not all encompassing. Position functions and qualifications may vary depending on business necessity.

TriNet is an Equal Opportunity Employer and does not discriminate against applicants based on race, religion, color, disability, medical condition, legally protected genetic information, national origin, gender, sexual orientation, marital status, gender identity or expression, sex (including pregnancy, childbirth or related medical conditions), age, veteran status or other legally protected characteristics. Any applicant with a mental or physical disability who requires an accommodation during the application process should contact [email protected] to request such an accommodation.