Senior Security Engineer

Posted 2 Days Ago
Be an Early Applicant
El Segundo, CA, USA
In-Office
128K-225K Annually
Senior level
Agency • Professional Services • Consulting
The Role
Build and operate security automation across AWS, applications, company systems, aircraft, and field operations. Responsibilities include secure infrastructure, identity and access controls, application security, secrets management, vulnerability remediation, CI/CD security checks, threat detection, incident response, device security, and secure remote communications. The role partners with engineering and field teams to reduce manual work and protect scientific and operational systems.
Summary Generated by Built In

Make it rain. Make Snow. Make Earth Habitable. 

Rainmaker builds and deploys audacious technologies that work with nature to create an abundant, habitable planet. We are modernizing proven cloud-seeding science with weather-resistant UAS, radar and satellite observations, numerical weather prediction, novel sensing and validation systems, and sustainable seeding technologies. We are building an integrated system to make more freshwater available to farms, ecosystems, and communities.

Our ambition is bold, but we pursue it with humility. We take on difficult problems in the real world with technical rigor, grit, integrity, and an openness to learning and course-correcting. We are hiring individuals with evidence of exceptional ability. If you want to build systems that endure, restore, and deliver the future we were promised, we want to hear from you.

Engineering builds the software, infrastructure, and aircraft systems that power Rainmaker’s cloud-seeding operations. We work with scientists and field operators to turn weather data into reliable systems that help make more freshwater available.

About the Role

    Rainmaker is hiring a Senior Security Engineer to build security into how we develop software and hardware, and how we run field operations. You’ll write production code and design secure defaults across AWS, our applications, and company systems, protecting scientific data and the systems our aircraft and field teams depend on. You’ll automate routine controls and checks, reducing recurring manual work as the company grows. You’ll work closely with engineers to test, operate, and improve the systems you build while keeping secure workflows straightforward to use.

What You’ll Do

  • Map critical systems, data flows, and access paths, then turn the highest-priority risks into a practical plan.

  • Build reusable, secure-by-default AWS infrastructure with platform engineers, including least-privilege access, network boundaries, and logging for scientific and operational systems.

  • Review application designs and code, build reusable authentication and authorization patterns, and fix vulnerabilities at their source.

  • Automate access provisioning and revocation, secrets management, and credential rotation across production and company systems, with clear audit trails and recovery paths.

  • Build security checks into development and deployment workflows to catch exposed secrets, vulnerable dependencies, and unsafe configuration changes before release.

  • Build useful detections and automate evidence gathering for investigations. Work with system owners to test incident response and recovery.

  • Make Google Workspace and device configurations secure by default, working with People and Operations to make onboarding and offboarding reliable and easy to use.

  • Partner with aircraft and field teams on secure remote access and communications for systems that operate with intermittent connectivity.

  • Test, monitor, and document security automation so other engineers can maintain it. Simplify controls that create unnecessary alerts, exceptions, or recurring manual work.

What We’re Looking For

  • Experience building and maintaining security automation in production. You can show what risk it reduced, how you tested it, how failures are handled, and what manual work it eliminated.

  • Strong software engineering skills in Python, TypeScript, or a similar language, including testing, code review, deployment, and operating what you build.

  • Hands-on cloud security experience, with the ability to turn access policies, network boundaries, and logging requirements into reusable infrastructure as code.

  • Practical understanding of application security, authentication, authorization, secrets management, and common web and API vulnerabilities.

  • Experience investigating security findings and carrying fixes through to deployment and verification.

  • Sound judgment about risk, reliability, and maintenance costs. You can choose a simple, effective control and explain what should happen now versus later.

  • Ability to work independently, communicate clearly with engineers and non-engineers, and follow through on work that spans teams.

What Will Set You Apart

  • Experience with AWS, Pulumi or Terraform, and GitHub or Buildkite deployment workflows.

  • Experience with Tailscale or WireGuard

  • Security work involving robotics, aerospace, scientific computing, or remote field systems.

  • Experience building self-service security tools or reusable controls that other engineering teams adopted.

What Success Looks Like In the First 90 Days

    You’ve mapped our critical systems and access paths and agreed on the highest-priority risks with the team. A secure configuration or access control is deployed on a critical system, with tests that catch unsafe changes. One recurring security workflow now runs automatically, with monitoring, a tested recovery path, and documentation so it can operate without your daily intervention. You’ve tested a detection and response path with the engineers who will use it and agreed on the next improvements.

Skills Required

  • Production experience building and maintaining security automation
  • Strong software engineering skills in Python, TypeScript, or a similar language
  • Experience with testing, code review, deployment, and operating production software
  • Hands-on cloud security experience
  • Experience implementing access policies, network boundaries, and logging as reusable infrastructure as code
  • Understanding of application security, authentication, authorization, secrets management, and common web and API vulnerabilities
  • Experience investigating security findings and delivering fixes through deployment and verification
  • Ability to assess risk, reliability, and maintenance costs
  • Ability to work independently and communicate clearly with technical and non-technical stakeholders
  • Experience with AWS, Pulumi or Terraform, and GitHub or Buildkite deployment workflows
  • Experience with Tailscale or WireGuard
  • Security experience involving robotics, aerospace, scientific computing, or remote field systems
  • Experience building self-service security tools or reusable controls adopted by engineering teams
Am I A Good Fit?
beta
Get Personalized Job Insights.
Our AI-powered fit analysis compares your resume with a job listing so you know if your skills & experience align.

The Company
HQ: New York, NY
Year Founded: 2023

What We Do

Rain is a tactical brand marketing and creative communications agency that helps midsize B2B brands become hero brands. They specialize in brand and marketing strategy to sharpen business positioning and creative communications to energize sales and refine messaging, ensuring the right message reaches the right audience in the appropriate tone.

Similar Jobs

CoreWeave Logo CoreWeave

Senior Security Engineer

Cloud • Information Technology • Machine Learning
In-Office
4 Locations
1450 Employees
139K-204K Annually

CoreWeave Logo CoreWeave

Senior Security Engineer

Cloud • Information Technology • Machine Learning
In-Office
4 Locations
1450 Employees
153K-204K Annually

CoreWeave Logo CoreWeave

Senior Security Engineer

Cloud • Information Technology • Machine Learning
In-Office
4 Locations
1450 Employees
165K-242K Annually

Block Logo Block

Senior Security Engineer

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
In-Office or Remote
8 Locations
12000 Employees
185K-327K Annually

Similar Companies Hiring

Energy CX Thumbnail
Greentech • Professional Services • Business Intelligence • Consulting • Energy • Financial Services • Utilities
Chicago, IL
150 Employees
Cravath, Swaine & Moore LLP Thumbnail
Legal Tech • Other • Professional Services
New York, NY
1200 Employees
VCA Animal Hospitals Thumbnail
Pet • Professional Services
Los Angeles, CA
35000 Employees

Sign up now Access later

Create Free Account

Please log in or sign up to report this job.

Create Free Account