Principal Software Engineer, Product Security
SentiLink · Remote · United States ·
COMPENSATION
€•• – ••k
Listed on the employer's job board (Ashby)
- Principal level role
- Fully remote option
- AWS + Go/Rust/Python
- Security tooling focus
- $220k-$300k base
Join SentiLink as a Principal Software Engineer focused on Product Security. You will lead technical efforts to secure infrastructure, applications, and internal systems while enabling rapid business growth. This hands-on position requires building security automation and partnering with engineering teams to embed security into the development lifecycle without slowing progress.
What you'll do
- Design and build internal security tooling from scratch including agent-based solutions
- Identify vulnerabilities across AWS stack, application code, and cloud configurations
- Develop AI-assisted tooling to scale offensive security testing capabilities
- Build security automation for improved detection, response, and remediation
- Conduct hands-on penetration testing and vulnerability research
- Partner with engineering teams to remediate findings and embed security practices
- Participate in security on-call rotation and incident response activities
- Contribute to threat modeling and security design reviews for new systems
What you'll need
- 8+ years experience in security or software engineering with security focus
- Proficient in one systems language (Go, Rust, C++) and one higher-level language
- Proven ability to design and ship production software end-to-end
- Deep AWS infrastructure expertise including IAM, EKS, RDS, and networking
- Ability to identify security misconfigurations across cloud and application layers
- Experience building tooling for penetration testing or vulnerability assessment
- Track record of building security automation and tooling from scratch
- Comfortable operating independently on ambiguous problems with minimal oversight
Nice to have
- Experience building or deploying LLM-based agents or AI-assisted security tooling
- Prior experience at security product companies like Wiz, Snyk, or Datadog
- Background in fintech, identity verification, or fraud detection sectors
- Industry certifications such as OSCP, OSCE, GPEN, or GXPN
- Experience with detection engineering or SIEM platforms
- Published security research, CVEs, or open source security contributions
- Experience supporting compliance frameworks like FedRAMP, SOC 2, or PCI DSS
Stack
- AWS
- Go
- Rust
- C++
- Python
- TypeScript
- EKS
- RDS
- IAM
How you'll work
- Digital-first company with fully remote to in-office options
- Strong collaboration across U.S. and India teams
- Regular in-person meetings to build relationships
- Offices in major U.S. cities and India locations
What you get
- Employer paid group health insurance for dependents
- 401(k) plan with employer match or equivalent
- Flexible paid time off policy
- Regular company-wide in-person events
- Home office stipend provided