Senior Full Stack Engineer

Founded in 2012, the company is the preemptive security platform that unifies exposure discovery and assessment, offensive testing, and intelligence shaped by AI and human insight to help organizations avoid, discover, and validate real-world risk. The company helps security teams move faster by identifying the exposures that matter most so they can act first and stay ahead of attackers. By combining the power of humans and AI, teams can preempt attack paths and prevent breaches. Based in San Francisco and New Hampshire, the company is supported by General Catalyst, Rally Ventures, Costanoa Ventures, and others. Visit [link for members] .

This is a seasoned engineer role in which you lead technical efforts across multiple teams or subsystems, owning system architecture and development across the stack. A Senior Software Engineer drives technical innovation, acts as a mentor and process advocate, driving improvements that scale beyond a single team. You will exercise high discretion over technical decisions and influence department-level business outcomes. You will set the architectural direction for the systems you own, make and document the key design tradeoffs, and provide strong leadership within and across scrum teams to deliver on that vision. This role will partner with cross-functional teams to build and scale critical security products engineered specifically for offensive cyber capabilities (DoW) and healthcare programs (HHS).

Essential Duties and Responsibilities

• Proactively research, prototype, and introduce technologies and  system designs for green-field products.

• Lead the design of new systems and major changes to existing ones: write design docs, evaluate alternatives, and document tradeoffs and decisions (e.g., ADRs)

• Primary IC for green-field product, ensuring long-term code maintainability, readability, and extensibility.

• Continuously evolve team processes, driving scalable improvements in delivery, quality, and collaboration.

API & Integration

• Design, develop, and maintain scalable and secure APIs, UIs and integration services.

• Implement RESTful, RPC, and event-driven APIs/UIs for internal and external systems.

• Collaborate with product, data, and platform teams to ensure seamless system interoperability.

• Manage API lifecycle including versioning, authentication, monitoring, and performance optimization.

• Develop and maintain integration pipelines between SaaS systems, data sources, and third-party applications.

• Troubleshoot integration issues, conduct root cause analysis, and implement fixes.

• Support continuous improvement through automation, observability, and best practices.

Education, Experience, Knowledge, Skills, and Abilities

• 5+ years of experience of software development experience

• Strong proficiency in TypeScript and modern JavaScript.

• Extensive experience with React and JavaScript web development frameworks (Next.js preferred)

• Experience with ORM frameworks and relational databases, including data modeling and provenance tracking patterns (Prisma, Drizzle, PostgreSQL)

• Experience building long-running, fault-tolerant workflows with durable execution engines (Inngest, Temporal, or similar)

• Hands-on experience integrating state-of-the-art LLMs into production systems, including agent design, tool use, and evaluation

• Strong understanding of integration patterns, and experiencing building external API integrations (pub/sub, webhook, ETL, etc.).

• Excellent debugging, analytical, and problem-solving skills.

Preferred Experience

• Bachelor’s degree in Computer Science, Software Engineering, or related field.

Working Conditions and Physical Requirements

The ideal candidate must be able to complete all physical requirements of the job with or without reasonable accommodation.

Sitting and / or standing - Must be able to remain in a stationary position 50% of the time

Carrying and / or lifting - Must be able to carry / move laptop as needed throughout the work day.

Environment - remote, work-from-home 100% of the time with travel to client sites

Pay Range Disclosure

At the company, we strive for fairness, equality and to create an environment that allows our people to perform at their very best. Our compensation philosophy is to foster a collaborative community that rewards, attracts and retains the best possible talent. The provided salary details are based on US national averages and we retain the flexibility to tailor to the needs of the business.

The national estimate for the current base range for the position of Senior Full Stack Engineer is: $140,400 - $175,500.

This position may also be eligible to participate in a discretionary bonus program or commission plan, subject to the rules governing the program, whereby an award, if any, depends on various factors, including, without limitation, individual and organizational performance.

Culture

• At the company, we understand that diversity in the workplace is vital to a company’s success and growth. We strive to make sure that people are included and have a sense of being part of making the company not only a great product but a great place to work.

• We regularly hear from both customers and researchers that the company feels like a family, and we strive to maintain that internally as well.

• Our team consists of a broad range of people: musicians, adventure sports junkies, nature lovers, parents, cereal enthusiasts, night owls, cyclists, artists—you get the point.

At the company, we are solving security threats and vulnerabilities that are relevant to everyone, therefore we believe solving these problems takes all kinds of backgrounds. We value the perspectives and experiences people from underrepresented backgrounds bring.

Disclaimer

This position has access to highly confidential, sensitive information relating to the technologies of the company. It is essential that the applicant possess the requisite integrity to maintain the information in the strictest confidence.

The company is authorized to obtain background checks for employment purposes under state and federal law. Background checks will be conducted for positions that involve access to confidential or proprietary information (including trade secrets).

Background checks may include Social Security verification, prior employment verification, personal and professional references, educational verification, and criminal history. Applicants with conviction histories will not be excluded from consideration to the extent required by law.

Any personal data you submit in connection with your application will be processed in compliance with the company's Privacy Policy, which you may review here:  [link for members] .

Equal Employment Opportunity

The company is EOE, Disability/Age Employer.

Individuals seeking employment at the company are considered without regards to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, or sexual orientation.

The company is committed to the full inclusion of all qualified individuals. In keeping with our commitment, the company will take the steps to assure that people with disabilities are provided reasonable accommodations. Accordingly, if reasonable accommodation is required to fully participate in the job application or interview process, to perform the essential functions of the position, and/or to receive all other benefits and privileges of employment, please contact HR at ADA at the company.

Apply at:  [link for members]