Senior Software Engineer, Full Stack

At Sift, we’re redefining how modern machines are built, tested, and operated. Our platform gives engineers real-time observability over high-frequency telemetry—eliminating bottlenecks and enabling faster, more reliable development.

Sift was born from our work at SpaceX on Dragon, Falcon, Starlink, and Starship—where scaling telemetry, debugging flight systems, and ensuring mission reliability demanded new infrastructure. Founded by a team from SpaceX, Google, and Palantir, Sift is built for mission-critical systems where precision and scalability are non-negotiable.

As an early engineer at Sift, you won’t just write code—you’ll help define the architecture, shape the product, and influence the culture of a company focused on solving real engineering problems. If you’re looking for complex technical challenges and the opportunity to build foundational systems supporting complex machines from the ground up, we want to hear from you.

In This Role, You'll:

• Build and maintain full stack features across our web application and data processing backend for complex telemetry data

• Create intuitive user interfaces for data exploration while optimizing for large real-time datasets

• Implement efficient APIs and data access patterns for real-time data streaming

• Collaborate with data platform and frontend teams on service design and implementation

• Write clean, maintainable code and participate in technical design discussions

The Skillset You'll Bring:

• 8+ years of professional experience in full-stack software development

• Experience building production applications with technologies like React, NextJS, TypeScript, Go, Rust, and Python

• Familiarity with relational and non-relational databases, e.g. PostgreSQL, Druid, Pinot, Timescale, or similar

• Strong problem-solving skills and attention to detail

Bonus Points:

• Experience with technical visualization tools (WebGL, D3.js, Apache ECharts) and time-series data

• Knowledge of WebAssembly and browser-based computation

• Background in scientific computing or technical data visualization

• Experience building tools for technical users (dashboards, data-editing environments)

• Built and launched side projects with consistent usage traffic

Engineering At Sift:

You'll have the opportunity to  help evolve and scale our platform because we're still in the early stages of building the product. Relevant technologies include:

• Web frontend & backend: ECharts, Go, gRPC, PostgreSQL, Protobuf, Radix, React, Redux, and TypeScript

• Data: Arrow, DataFusion, Flink, Parquet, and Rust

• Infrastructure:  Argo CD, AWS, Docker, GitHub Actions, Grafana, Kubernetes, Kustomize, Linux, Prometheus, and Terragrunt

Location:

Sift’s headquarters is in El Segundo, CA. We collaborate in person twice a week—on Mondays and Thursdays—and come together for a full week every two months. While we prefer team members to be local, we’re open to relocating candidates to LA or considering remote work from the San Francisco area for the right candidate.

Salary range: $170,000 - $220,000 per year. Plus equity and benefits.

Eligibility:

U.S. Person Required: Must be a U.S. citizen, lawful permanent resident, or protected individual such as an asylee or refugee in compliance with ITAR (International Traffic in Arms Regulations) / EAR (Export Administration Regulations) regulations.