Senior Software Engineer, Frontend

Siftstack
Marina Del Rey, CA
On-site

Who this role is best for

A natural match if you have experience building data-driven frontend tools for technical users.

Best fit for

  • Candidates with 5+ years of frontend experience in React and data-driven tools
    — “5+ years of professional experience building web applications and data-driven tools”
  • Individuals who have led or contributed to reusable component libraries
    — “Build high-performance data visualization interfaces and reusable component libraries for complex telemetry data”
  • Candidates with a background in technical visualization or scientific computing
    — “Background in scientific computing or technical data visualization”

Things to consider

  • Must be a U.S. citizen or lawful permanent resident due to ITAR/EAR compliance
    — “Must be a U.S. citizen, lawful permanent resident, or protected individual such as an asylee or refugee”
  • Requires a hybrid work arrangement with in-person collaboration twice a week
    — “We collaborate in person twice a week—on Mondays and Thursdays”

How to stand out

  • Emphasize experience with real-time data optimization and visualization in your resume and interviews
    — “Create intuitive user interfaces for data exploration while optimizing for large real-time datasets”
  • Highlight contributions to design systems using Tailwind and Radix UI
    — “Experience with modern CSS (Tailwind) and component libraries (Radix UI) for building design systems”
  • Showcase projects involving time-series data or technical dashboards
    — “Experience building tools for technical users (dashboards, data-editing environments)”
  • Demonstrate technical design collaboration by referencing past API design or integration work
    — “Collaborate with backend teams on API design and implementation for seamless user experiences”
  • Mention prior experience with WebAssembly or browser-based computation if applicable
    — “Knowledge of WebAssembly and browser-based computation”
Pace · SteadyCollaboration · MediumAutonomy · HighDecision Impact · TeamLevel · Senior

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • high-performance data visualization
  • seamless user experiences
  • API design
Typical background
software engineeringweb development

Skills & requirements

Required

Web Application DevelopmentReactTypeScriptWeb Performance OptimizationModern CSS

Preferred

WebglD3.jsWebassemblyScientific ComputingTechnical Data Visualization

Stack & domain

ReactNext.jsTypeScriptTailwindRadix UIWebglD3.jsApache EchartsWebassemblyGoParquetFlinkKafkaRedpandaBeamDuckdbTimescaleInfluxdbDruidGithub ActionsAWSAzureGCPDockerKubernetesTerraformHardware EngineeringTelemetry DataData VisualizationMission-critical Systems

About the role

Original posting from Siftstack via Ashby

ABOUT SIFT

Sift 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 discussions

The 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 systems

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: 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 Terraform

Location:

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.

Source: Siftstack careers (Ashby)

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