Expert DevSecOps Engineer - MissionSquare Retirement

Join a great place to work with MissionSquare, a financial services corporation with approximately $79 billion in assets under management and administration and over 600 employees. Founded in 1972, MissionSquare is dedicated to the retirement needs of public sector employees. We focus on delivering results-oriented retirement and retiree health savings plans, education, investment options, personalized guidance, and related services to public sector participants in more than 9,200 plans and nearly 2 million participant accounts. We strive to make the administration of retirement programs as easy and cost-effective as possible. We have an extraordinary talent base and invite you to consider joining MissionSquare.

The DevSecOps Engineer ( Application Security ) is a highly technical role responsible for advancing and embedding application security across the software development lifecycle. Candidates must have strong expertise in application security, secure coding practices, DevSecOps methodologies, and software development processes, with foundational knowledge of infrastructure and operating systems. This role focuses on integrating robust security controls into CI/CD pipelines, driving automation of AppSec tooling, and ensuring adherence to secure development principles. DevSecOps Engineers collaborate closely with developers, architects, cybersecurity teams, and system engineers to deliver secure, resilient applications. They demonstrate strong analytical abilities, adaptability, and the capacity to respond quickly to evolving requirements while maintaining exceptional communication and cross‑team partnership. With a security‑first mindset, DevSecOps Engineers continuously assess application threats, reduce enterprise risk, and support secure integration and deployment practices across multidisciplinary teams.

***MissionSquare cannot sponsor or hire candidates with H1B, STEM or OPT visas for this role.***

Essential Functions (With Percentage Allocation)

• 20% – Build relationships with developers, stakeholders, and scrum masters to incorporate security principles into engineering design and application deployments.
• 15% – Perform security testing and validation of application security controls across projects, ensuring secure design and implementation.
• 15% – Oversee the implementation of defensive security practices and countermeasures across applications and supporting infrastructure.
• 10% – Uphold CI/CD security strategy and practices in partnership with other technical team leads, ensuring security is consistently embedded in pipelines.
• 20% – Demonstrated experience with SAST, SCA, DAST, and IaC scanning tools and methodologies.
• 10% – Identify vulnerabilities in code through automated and manual assessments and promote efficient remediation.
• 10% – Apply threat modeling principles to improve design and development practices.
• Serve as a point