Senior Software Engineer, Backend (Agentic AI)
Sift Stack, Inc.3 months ago
Base Salary
$200k - $250k/yr
Responsibilities
- Talk directly to customers and partner with product to turn hardware review workflows into agent capabilities.
- Design, ship, and operate agentic systems that reason over large-scale time-series data and hardware context.
- Build agent tool interfaces, sandboxed execution, context and memory management, compaction algorithms, skills, and guardrails.
- Build distributed systems for real-time streaming, disconnect recovery, and resumption across restarts.
- Design job-based systems that schedule, scale, and tear down agent workloads on Kubernetes in cloud and on-premises environments.
- Develop and maintain Sift’s MCP server for querying telemetry.
- Design and implement APIs powering agentic capabilities.
- Build evaluation suites and production instrumentation for quality, latency, cost, and failure modes.
- Integrate and assess frontier models across providers.
Requirements
- 8+ years of professional software engineering experience.
- Experience building APIs and complex backend services with Go, Python, Rust, or similar technologies.
- Working knowledge of distributed systems fundamentals.
- Interest in experimenting with new AI agents, models, and features.
- Ability to own a product area, work with customers, decide what to build, and ship it.
- U.S. citizen, lawful permanent resident, or other qualifying U.S. Person status required for ITAR/EAR compliance.
Benefits
- Hybrid collaboration in person twice weekly on Mondays and Thursdays.
- Full in-person week every two months.
- Relocation support to Los Angeles or the option to work from the San Francisco office for the right candidate.
- Equity and benefits are provided.
- U.S. Person status is required for ITAR/EAR compliance.
Tech Stack
Apache FlinkApache KafkaArgo CDAWSDockerGitHub ActionsGoGrafanagRPCKubernetesLinuxPostgreSQLPythonReactReduxRustTypeScript
Categories
About Sift Stack, Inc.
Sift Stack builds a data infrastructure and telemetry analysis platform for hardware engineering teams in aerospace, defense, autonomy, and energy. Its software ingests, stores, and analyzes high-frequency machine data to automate anomaly detection, accelerate testing, and support operations for rockets, satellites, autonomous vehicles, and other mission-critical systems. Founded in 2022 and privately held, Sift is headquartered in El Segundo, California, and was started by former SpaceX engineers.