> Markdown version of [/jobs/ext/2722988-software-engineer-security-infrastructure](https://www.wearedevelopers.com/jobs/ext/2722988-software-engineer-security-infrastructure). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Software Engineer - Security/Infrastructure - **Company:** A. & A. FEDER'S INC. - **Location:** San Francisco, CA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Artificial Intelligence, Amazon Web Services, Data Infrastructure, Software Debugging, Identity and Access Management, Python (Programming Language), Automation of Marketing, Software Construction, Data Streaming, TypeScript, Cloud Platform System, Large Language Models, Model Validation, Build Tools, Data Pipelines - **Published:** September 4, 2026 - **Apply:** https://startup.jobs/senior-software-engineer-security-infrastructure-afterquery-8109109 ## About the Role You've built internal tools or systems to solve security problems-not just configured existing products Strong programming ability in Python, Go, or TypeScript Experience working with cloud environments (IAM, networking, containers) Ability to identify vulnerabilities directly in code and system design Experience creating or maintaining signal-based monitoring and alerting systems Comfortable owning production issues when they arise Able to move fluidly between security work and general engineering 2-7 years building software or security systems, Background in fast-scaling startups or high-output engineering teams Exposure to AI systems, data pipelines, or model evaluation workflows Familiarity with offensive security techniques Experience building tools that other engineers depend on, Evidence of building and shipping systems from zero to production ## Description You'll be responsible for protecting a system that handles highly sensitive workflows across AI training, expert networks, and enterprise integrations with leading model labs. This role is deeply technical. You'll design and implement the infrastructure that keeps our systems resilient, rather than managing off-the-shelf security tools. We move fast and rely heavily on AI internally. You should be comfortable using LLMs to accelerate debugging, threat analysis, and system design-and just as comfortable replacing repetitive work with code. Security here isn't isolated. When you're not working on security problems, you'll be building core systems-especially human-in-the-loop platforms and data infrastructure that power how frontier AI models are developed., Build systems that identify and respond to real security events across our stack Replace manual security workflows with programmatic, scalable solutions Strengthen our cloud and production environments (GCP/AWS, containers, networking) Design and enforce access control systems across internal teams, experts, and customers Integrate security checks directly into development workflows without slowing shipping speed Own incident handling systems and processes from detection through resolution ## Related Videos - [Get security done: streamlining application security with Aikido](https://www.wearedevelopers.com/videos/1638-get-security-done-streamlining-application-security-with-aikido) - [Do TypeScript without TypeScript](https://www.wearedevelopers.com/videos/327-do-typescript-without-typescript) - [Modern Data Architectures need Software Engineering](https://www.wearedevelopers.com/videos/1030-modern-data-architectures-need-software-engineering) - [Python-Based Data Streaming Pipelines Within Minutes](https://www.wearedevelopers.com/videos/1233-python-based-data-streaming-pipelines-within-minutes) - [Why Security-First Development Helps You Ship Better Software Faster](https://www.wearedevelopers.com/videos/1568-why-security-first-development-helps-you-ship-better-software-faster) - [Vuejs and TypeScript- Working Together like Peanut Butter and Jelly](https://www.wearedevelopers.com/videos/127-vuejs-and-typescript-working-together-like-peanut-butter-and-jelly) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 137 - AI'm not sure about this](https://www.wearedevelopers.com/magazine/485-dev-digest-137-ai-m-not-sure-about-this) - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)