Senior Full-Stack Engineer: SOC2‑Ready Secure AI Apps

Simulation 95; Menlo Park (CA); On-site; USD 190,000 - 230,000; Full time

Job summary

Simulation95 builds AI for healthcare and life sciences. We work with researchers, engineers, and domain experts to turn specialized knowledge into useful tools.

Our work emphasizes reliable evaluation, secure handling of information, and applications grounded in real workflows. Simulation95 seeks a senior individual-contributor who will build and secure full-stack applications for internal operations and customer-facing products, with a strong emphasis on cybersecurity, data protection, and

Qualifications

• Experience shipping and operating production applications across the full stack with strong Python or TypeScript backend skills and sound API, database, and asynchronous-processing design.
• Demonstrated application-security experience, including secure coding, authorization testing, data isolation, vulnerability remediation, and protection of confidential information.
• Ability to map data flows and trust boundaries, identify threats, and translate security and business requirements into testable controls.
• Hands-on experience with cloud services, IAM, secrets management, encryption, logging, and secure development workflows.
• Ability to support internal and production systems, diagnose failures and data-integrity issues, and document technical controls clearly.

Responsibilities

• Build responsive, accessible user interfaces with TypeScript and React, and connect them to secure APIs and data workflows.
• Build and operate secure APIs, databases, queues, background services, and integrations for internal company workflows and customer-facing production applications.
• Design and document data flows through ingestion, storage, processing, model services, and external integrations; preserve provenance and enforce access, sharing, retention, and deletion rules.
• Build security into code: authentication, least-privilege server-side authorization, customer isolation, input validation, secrets management, encryption, and audit trails.
• Conduct threat modeling and security-focused code reviews; add security tests, dependency scanning, and verify vulnerability fixes.
• Support SOC 2 readiness and ongoing controls: document systems, collect evidence, and resolve findings with teams and auditors.
• Own application reliability and data safety through integrity checks, monitoring, safe deployments, incident investigation, backups, and tested recovery.

Skills

Python

TypeScript

Full-stack

APIs

Security

Tools

Cloud services

IAM

Secrets management

Encryption

Job description

Simulation95 builds AI for healthcare and life sciences. We work with researchers, engineers, and domain experts to turn specialized knowledge into useful tools.

Our work emphasizes reliable evaluation, secure handling of information, and applications grounded in real workflows. Simulation95 seeks a senior individual-contributor who will build and secure full-stack applications for internal operations and customer-facing products, with a strong emphasis on cybersecurity, data protection, and