Senior Software Engineer, Backend (Agentic AI)
Sift Stack, Inc.5 days ago
Base Salary
$180k - $230k/yr
Responsibilities
- Talk directly with customers and partner with product teams to convert 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 reliability components including tool interfaces, sandboxed code execution, context and memory management, compaction algorithms, skills, and guardrails.
- Build distributed and job-based execution systems that stream work in real time, recover across restarts, and schedule and scale workloads on Kubernetes in cloud and on-premises environments.
- Develop and maintain Sift’s MCP server and APIs for querying telemetry.
- Create evaluation suites and production instrumentation for agent quality, latency, cost, and failure modes.
- Integrate and assess frontier models across providers.
Requirements
- 8+ years of professional software engineering experience.
- Experience owning product areas, including customer discovery, prioritization, and shipping.
- Experience building APIs and complex backend services with Go, Python, Rust, or similar technologies.
- Working knowledge of distributed systems fundamentals.
- Curiosity about new AI products, agents, models, and features.
Benefits
- Equity and benefits are provided in addition to the stated salary.
- In-person collaboration is required twice weekly on Mondays and Thursdays, with a full in-person week every two months.
- The role is based at the Marina Del Rey, California headquarters, with relocation to Los Angeles or work from the San Francisco office available for the right candidate.
Tech Stack
Apache FlinkApache KafkaArgo CDAWSDockerGitHub ActionsGoGrafanagRPCKubernetesLinuxPostgreSQLPrometheusPythonReactReduxRustTypeScript
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.