Senior Application Security Engineer, Slingshot Aerospace
$116-193k
More information about location
Space data solution
Job no longer available
Space data solution
101-200 employees
Job no longer available
$116-193k
More information about location
101-200 employees
Company mission
To make space safe and secure by closing the loop from observation to decision to execution.
Role
Who you are
- 5+ years of professional experience in application security, DevSecOps, or related engineering roles (7+ years preferred)
- Active Top Secret clearance (TS/SCI preferred) or ability to obtain
- U.S. Citizenship (no duals)
- Secure coding, code review, and AppSec pipeline integration
- Linux hardening, Kubernetes, Docker, and infrastructure as code (Terraform, Ansible, etc.)
- AppSec tooling such as SAST, DAST, SCA, IaC scanners, and secrets detection
- Proficiency in Python, Go, Bash, or YAML
- Familiarity with software supply chain security and modern DevSecOps practices
- Experience in air-gapped or enclave-based environments
Desirable
- CISSP, OSCP, or equivalent technical certification
- Familiarity with hybrid identity platforms such as Okta, Keycloak, FreeIPA, or Entra ID
- Experience reviewing IaC templates, Dockerfiles, and custom build pipelines
- Experience securing AI or ML pipelines or GPU-based compute clusters
- Background in automation, compliance enablement, or security operations in secure environments
What the job involves
- At Slingshot Aerospace, we build space simulation and decision intelligence technologies that empower defense, intelligence, and commercial operators
- As a Senior Application Security Engineer, you’ll take ownership of securing the software, systems, and infrastructure that power real missions
- This is a hands-on role focused on secure coding, container hardening, and pipeline security
- You’ll work side-by-side with Software engineers, DevSecOps teams, and cyber SMEs to embed security into everything we build and deliver across cloud, hybrid, and classified environments
- Work with the Cyber SME, Software Engineers, and DevSecOps teams to embed security controls throughout build, deployment, and delivery lifecycles
- Lead application security engineering across Linux-based, containerized, and hybrid environments
- Integrate and manage AppSec tooling including SAST, DAST, SCA, IaC scanning, and SBOM validation
- Perform secure code reviews and threat modeling for cloud and classified systems
- Build and maintain secure baselines for containers, Kubernetes clusters, and OS images
- Implement hardening, identity, and access controls (RBAC, MFA, PAM) across cloud and on-prem platforms
- Strengthen software supply chain security including artifact signing and SBOM validation
- Collaborate across teams to automate security controls and improve visibility across builds and repositories
- Lead investigations, post-mortems, and remediation efforts for vulnerabilities or incidents
- Contribute to security architecture reviews and new program deployments
Our take
Despite years of research and exploration, we are still limited in what we know about space. Slingshot Aerospace is a company looking to deepen the understanding of space through advanced analytics, machine learning, computer vision and collaborative tools.
With the growing number of satellites, vast amounts of orbital debris and more nations competing for superiority, the space domain is only getting more complex. Slingshot therefore has bolstered its capabilities through acquisitions which granted it access to a satellite and launch database and optical sensing network for satellite tracking.
Substantial funding has supported the company's ongoing project to create a "digital space twin", and its progress is increasingly being recognized at the highest levels. Most recently, it was named on Fast Company's list of the World's Most Innovative Companies for 2026, highlighting both its technical ambition and real-world impac.t Already working closely with organizations such as NASA and the US Air Force, the company is truly cementing its role as a critical player in the evolving space domain.
Freddie
Company Specialist at Welcome to the Jungle
Insights
Company
Funding (last 2 of 9 rounds)
Jan 2025
$1.9m
GRANT
Sep 2024
$30m
GROWTH EQUITY VC
Total funding: $115.1m
Company benefits
- Comprehensive Medical, Dental, and Vision coverage
- 401(k) retirement plan to support long-term savings
- Flexible PTO to recharge and stay balanced
- Stock options for long-term alignment and ownership
- Remote-first culture with offices in Windsor, CO and Cornwall, UK
Company HQ
El Segundo, CA
Leadership
Tim Solms
(CEO & Board Director)Alongside serving as Slingshot Aerospace's CEO, Tim is a Chairman on the Board of Directors at 4C Strategies and a President on the Board of Directors at HondaJet Owners and Pilots Association. Prior to joining Slingshot in 2024, he was an EVP & GM of the Public Sector at Dun & Bradstreet.
Scott Humphrys
(COO)Prior to joining Slingshot Aerospace in 2026, Scott was the COO of Connect Housing Blocks. Before that, he spent 5 years at Serco, joining as a Senior Consultant before moving into the role of Deputy Director and then Director.
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