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Senior / Staff Application Security Engineer

SunoBostonEngineering
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Salary
$230K - $330K USD
Job type
Full-time
Posted
4 Aug 2026
Status
Open · checked 7d ago

About this role

Suno is seeking a Senior / Staff Application Security Engineer to lead product security initiatives at their Boston office. This onsite position suits experienced security professionals with a background in building robust application security practices from the ground up.

Role Overview

The Senior / Staff Application Security Engineer will take complete ownership of how the company product is built and secured. This professional will ensure that code, APIs, and services are secure by design through advanced threat modeling and application layer hardening. The ideal candidate thrives in a fast-paced environment and enjoys partnering with product and platform engineering teams.

Key Responsibilities

Execute end-to-end application security by performing threat modeling on features and services to drive risk remediation.
Protect the application layer against critical vulnerabilities including injection flaws, broken authentication, broken authorization, and insecure APIs.
Establish and operate a secure software development lifecycle, incorporating code-review guardrails, SAST and DAST tooling, dependency safety, supply-chain checks, and secrets management.
Harden session handling, identity management, authentication, and authorization protocols across the entire platform.
Secure unique generative AI surfaces, including model endpoints, inference routes, prompt handling, and emerging threat vectors.
Collaborate closely with engineering teams to integrate security early in the development cycle and elevate overall code quality.

Requirements

Bring six or more years of dedicated experience in security engineering with a heavy focus on hands-on application security.
Demonstrate a strong mastery of major vulnerability classes and methods to eliminate them at the source.
Experience as a builder who has successfully implemented secure-SDLC tooling and AppSec practices.
Show fluency in modern application technology stacks alongside solid proficiency working within AWS environments.
Capability to write and deploy production-grade code rather than solely reviewing the work of others.
Maintain high curiosity regarding emerging artificial intelligence and LLM threat categories.
Applicants must possess legal eligibility to work within the United States and be able to work onsite in Boston.

Nice to Have

Background working on consumer products operating at scale.
Experience applying secure-by-design principles to machine learning or generative AI surfaces.
Prior experience operating as an early security hire within a growing organization.

Skills and Tools

AWS
LLM
SAST/DAST
Secure SDLC

Salary and Benefits

Annual base salary ranging between $230,000 and $330,000 USD
Company equity package
401(k) plan featuring a 3% employer match alongside Roth 401(k) options
Comprehensive medical, dental, and vision insurance with PPO, HSA, and FSA choices
Eleven paid holidays plus unlimited paid time off and sick leave
Sixteen weeks of paid parental leave
Creative education stipend and generous commuter allowance
Catered in-office lunch provided five days a week

About the Company

Suno is a pioneering consumer entertainment platform centered on making music creation accessible to everyone, from everyday hobbyists to Grammy-winning artists. Recognized as a leader in artificial intelligence music, the organization is backed by prominent investors such as Bond Capital, Menlo Ventures, Lightspeed Venture Partners, IVP, Forerunner, Union Square Ventures, Alkeon, Quiet, Matrix Partners, Schroders Capital, and NVentures. Suno operates as an equal opportunity employer.

How to Apply

Interested candidates should visit the official Suno careers page to submit an application for this opportunity.

Skills and tech stack

AWSLLM

Questions candidates ask

What is the salary range for the Senior / Staff Application Security Engineer role?

The annual salary for this full-time position ranges from $230,000 to $330,000 USD.

Where is this job located?

This role is based in Boston and requires working onsite at the office.

What level of experience is required?

Candidates must have 6 or more years of experience in security engineering with deep, hands-on application-security expertise.

What benefits are included for full-time employees?

Full-time employees receive company equity, a 401(k) with a 3% employer match, medical/dental/vision insurance, unlimited PTO, 16 weeks of paid parental leave, an education stipend, a commuter allowance, and daily in-office lunches.

Are there specific technical skills required?

Yes, candidates should be comfortable working in AWS and have familiarity with AI and LLM security concepts alongside secure-SDLC tooling.

Ready to apply?

The application is on the official Suno careers page.

Apply on company site