Senior Software Engineer, Frontend

# Senior Software Engineer, FrontendSiftSan Francisco, CA (Hybrid)Full-time$180,000 – $230,000 / yearUpload your resume once and Scout applies for youApply with ScoutShare this job:LinkedInXSave imageSift builds a telemetry data platform for hardware engineering teams. You’ll develop frontend interfaces and reusable components that help users explore complex, real-time datasets, collaborating with backend teams on APIs.* Full-time* Hybrid* 5+ years### Skills and expertiseReactNext.jsTypeScriptTailwindRadix UIWebGLD3.jsWebAssembly### Key responsibilities* Build high-performance data visualization interfaces and reusable component libraries for telemetry data.* Create intuitive data exploration interfaces that work with large, real-time datasets.* Collaborate with backend teams on API design and implementation.## How this job comparesCompared with 1,635 open senior engineering jobs on October 10, 2026.Pay: This job pays $180K to $230K a year. The 719 open senior engineering jobs that publish US pay start at $164K on average, so this job starts about 10% higher.Similar open jobs: We Love AI Jobs lists 1,635 open senior engineering jobs at 344 companies.Remote work: This job is hybrid. 271 of the 1,635 senior engineering jobs (17%) are remote.AI in this role: Low. The company works with AI, but AI is a small part of this role's daily work. The work is centered on frontend interfaces for telemetry data, not on AI models or AI products. The posting’s AI mention describes the company’s broader context rather than daily responsibilities.## Full descriptionAbout SiftSift is the data infrastructure platform for hardware engineering teams. Sift turns high-frequency telemetry into engineering insights for mission-critical systems. Teams use Sift to build and operate rockets, satellites, autonomous vehicles, energy systems, defense platforms, and more.Founded by former SpaceX engineers who built the tools behind Dragon and Starlink, Sift is building the data infrastructure to herald the AI era for physical systems.In This Role, You'll:• Build high-performance data visualization interfaces and reusable component libraries for complex telemetry data• Create intuitive user interfaces for data exploration while optimizing for large real-time datasets• Collaborate with backend teams on API design and implementation for seamless user experiences• Write clean, maintainable code and participate in technical design discussionsThe Skillset You'll Bring:• 5+ years of professional experience building web applications and data-driven tools• Strong experience building production applications with technologies like React, NextJS, and TypeScript• Strong understanding of web performance optimization and browser rendering• Experience with modern CSS (Tailwind) and component libraries (Radix UI) for building design systemsBonus 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 trafficEngineering 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: React, TypeScript, Redux, Tailwind, WebAssembly, D3.js, WebGL, and Go• Data: Parquet, Flink, Kafka, Redpanda, Beam, DuckDB, Timescale, QuestDB, InfluxDB, and Druid• Infrastructure: GitHub Actions, AWS, Azure, GCP, Docker, Kubernetes, and TerraformLocation: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. 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. #J-18808-Ljbffr