---
title: 'Software Engineer, Security Infrastructure at Sift Stack, Inc.'
canonical: 'https://feeny.ai/job/software-engineer-security-infrastructure-sift-stack-inc-marina-del-rey-achs96peg00q'
type: 'job'
last_seen: '2026-09-07'
---

# Software Engineer, Security Infrastructure at Sift Stack, Inc.

- **Company:** Sift Stack, Inc.
- **Location:** Marina Del Rey, CA
- **Compensation:** $180k–$230k
- **Employment:** full-time
- **Work type:** hybrid
- **Posted:** 2026-08-07
- **Last confirmed live:** 2026-09-07
- **Apply:** https://jobs.ashbyhq.com/siftstack/ecc6c4af-7c80-4389-a879-5b65ff7e32bf

## Job description

## ABOUT SIFT

Sift is the data infrastructure platform for hardware engineering teams. We turn high-frequency telemetry into engineering insights for mission-critical machines: rockets, satellites, autonomous vehicles, energy systems, and defense platforms. Founded by former SpaceX engineers, we are building the review and analysis layer for the AI era of physical systems.

In This Role, You’ll:

- Secure-by-default guardrails: Build the patterns, libraries, and standards for authentication, authorization, input handling, and cryptography that make whole classes of vulnerability hard to introduce. Ensure the secure path is the path of least resistance.
- Software supply chain: Own dependency integrity, artifact signing, and build-pipeline trust. This matters especially for the self-managed and air-gapped deployments our customers run.
- Threat modeling and secure design: Partner with engineering teams on new features and architectural changes across a distributed, polyglot system, and turn the results into concrete design decisions.
- Developer-facing security tooling: Own the appsec toolchain in CI/CD: SAST, software composition analysis, secret scanning, and fuzzing. Tune it so developers get findings worth acting on, then work with the owning teams to drive remediation.
- Raise engineering’s security fluency: Make security knowledge something engineers pick up from design reviews, documentation, and working with you, not something they have to come ask for.

The Skillset You’ll Bring:

- 5+ years building production software, including direct security ownership of a codebase you shipped. You are a software engineer first, applying that skill to security.
- Fluency reading and reviewing a compiled systems language, with depth in Go or Rust.
- Strong grounding in application security: web and API vulnerability classes, authentication and authorization patterns, and applied cryptography, applied through threat modeling and design review on distributed systems.
- Hands-on experience embedding security tooling (SAST, SCA, secret scanning) into developer workflows and CI/CD, tuned for signal over noise.
- A track record of building security tooling or libraries that other teams actually adopted.
- Clear communication with engineers and leadership. You can explain risk and tradeoffs to people who don’t live in security.

Bonus Points:

- Experience securing software that ships to customer-controlled, on-premise, or air-gapped environments.
- Familiarity with software supply chain tooling and standards (Sigstore, SLSA, SBOM generation).
- Fuzzing native or high-throughput data paths.
- Exposure to regulated environments such as defense or aerospace.

Location:

SIFT’s headquarters is in Marina Del Rey, CA (Next to LAX). We collaborate in person twice a week—on Mondays and Thursdays—and come together for a full week every two months. We are open to relocating candidates to LA or working from our San Francisco office for the right candidate.

Salary range: $180,000 - $230,000 per year. Plus equity and benefits.

Eligibility:

U.S. Citizenship Required: This position requires U.S. citizenship due to the nature of certain customer environments, security requirements, and access obligations associated with the role.

## About Sift Stack, Inc.

## Company Overview
- **One-liner**: Sift provides a unified observability platform for mission-critical hardware systems, enabling real-time telemetry ingestion, storage, analysis, and anomaly detection for aerospace, defense, energy, robotics, and manufacturing.
- **Entity Type**: Private (Series B, $42M raised in July 2025)
- **Headquarters**: El Segundo, California, USA (with expansion to Marina del Rey)
- **Founded**: 2022
- **Founders**: Austin Spiegel (CEO) and Karthik Gollapudi (Co-Founder), both former SpaceX engineers

## Core Business
- **Primary Industries**: Observability / Data Infrastructure for physical systems; Aerospace & Defense, Energy, Robotics & Physical AI, Advanced Manufacturing, Autonomous Vehicles
- **Target Customers**: B2B / Enterprise – engineering teams building, operating, and maintaining mission-critical machines (e.g., spacecraft, launch vehicles, satellites, autonomous rail, supersonic aircraft, grid-scale energy systems)
- **Mission**: “Advance science and technology by providing engineers advanced tools and infrastructure that help build our exciting future.” – [siftstack.com/about](https://www.siftstack.com/about)

## Products & Services
- **Sift Platform**: A unified observability platform that ingests, stores, and analyzes machine telemetry at scale. Supports real-time streaming analysis, automated data review, anomaly detection, and long-term retention. Integrates with Grafana, LabVIEW, Palantir Foundry, Nominal, Mavlink, and provides REST/GraphQL/Python/gRPC APIs. Deployment options include cloud SaaS, hybrid, on-premises, and air-gapped environments. – [siftstack.com/about/faq](https://www.siftstack.com/about/faq)

## Market Standing
- **Valuation**: Not publicly disclosed.
- **Key Metric**: Total funding raised: **$42M** (Series B, led by StepStone, July 2025). Prior rounds: Series A1 (Apr 2024), Series A ($4M, Nov 2023), Seed ($3.5M). – [pitchbook.com](https://pitchbook.com/profiles/company/525527-47)
- **Notable Investors**: StepStone (Series B lead), GV (Google Ventures – largest investor), plus 10 total investors. – [siftstack.com/about/faq](https://www.siftstack.com/about/faq)
- **Growth Signals**:
  - Headcount: 80 employees (as of 2026) – [pitchbook.com](https://pitchbook.com/profiles/company/525527-47)
  - Achieved **FedRAMP High** certification in partnership with Knox Systems, enabling federal/defense work. – [siftstack.com](https://www.siftstack.com/)
  - Named to Fast Company’s **Next Big Things in Tech 2024** (Transportation category). – [siftstack.com/about/faq](https://www.siftstack.com/about/faq)
  - Expanding to two cities (El Segundo/Marina del Rey) with new senior leaders in engineering, sales, and design. – [siftstack.com](https://www.siftstack.com/)
  - Customer results: Astrolab saved 5,000 development hours and $100K+ in costs; Parallel Systems reduced infrastructure costs by 85% and recovered 150 hours per engineer per year. – [siftstack.com/about/faq](https://www.siftstack.com/about/faq)

## Competitive Advantages
- **Purpose-built for hardware telemetry**: Unlike general-purpose databases or monitoring tools (e.g., Grafana, InfluxDB), Sift handles high-frequency, multi-channel sensor data at scale and provides automated anomaly detection (stateful rules, not just threshold alerts).
- **Compliance moat**: SOC 2 Type II, FedRAMP High, ITAR, CMMC2, NIST SP 800-171 – critical for aerospace and defense procurement.
- **Founder pedigree**: Built by former SpaceX engineers who personally experienced the pain of brittle in-house telemetry solutions.
- **Customer traction**: Deployed in spacecraft, launch vehicles, satellites, autonomous rail, supersonic aircraft, and grid-scale energy systems. Customers include Impulse Space, Reliable Robotics, Mach Industries, Astro Mechanica, JetZero, K2 Space, and others. – [siftstack.com/about/faq](https://www.siftstack.com/about/faq)

## Strategic Focus
- **Expand into national security and defense** via FedRAMP High certification and ITAR compliance.
- **Scale the platform** to serve more industries (physical AI, autonomous systems, energy) while maintaining air-gapped and on-premises options for classified programs.
- **Grow team** across engineering, product, and go-to-market in two office locations, while preserving a long-term, mission-driven culture. – [siftstack.com/career](https://www.siftstack.com/career)

## Why Work Here
- **Culture & Values**: Bias for action, customer experience first, own the outcome, thrive together, maintain a long-term mindset. Emphasis on solving real-world problems (not just shipping features) and working across disciplines. – [siftstack.com/career](https://www.siftstack.com/career)
- **Work Policy**: Hybrid – up to 4 days per week in-person depending on team. Free lunch on in-office days via Forkable.
- **Benefits**:
  - Medical (Blue Shield of CA, 100% employee premium covered on select plans)
  - Dental and vision (Principal, full coverage for employee & dependents)
  - 401(k) with Accrue/Vestwell
  - Unlimited PTO (subject to approval)
  - Equity grants (ownership aligned with company success)
- **Engineering Culture**: Interview process is transparent; teams are given autonomy to solve hard technical problems. The company is building “the backbone of tomorrow’s energy systems, aerospace platforms, and autonomous fleets.” – [siftstack.com/career](https://www.siftstack.com/career)

## Sources
1. [siftstack.com](https://www.siftstack.com/)
2. [siftstack.com/about](https://www.siftstack.com/about)
3. [siftstack.com/about/faq](https://www.siftstack.com/about/faq)
4. [siftstack.com/career](https://www.siftstack.com/career)
5. [pitchbook.com](https://pitchbook.com/profiles/company/525527-47)

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