Senior Software Engineer, Frontend

Siftstack
San Francisco, CA
Hybrid

Who this role is best for

Strong fit for frontend engineers with deep visualization and data-driven tool experience who collaborate closely with backend teams and are open to hybrid in-person work arrangements in California.

Best fit for

  • Candidates with 5+ years of experience in React and TypeScript for complex web applications
    — “Strong experience building production applications with technologies like React, NextJS, and TypeScript”
  • Individuals with a background in creating design systems and optimizing browser performance
    — “Experience with modern CSS (Tailwind) and component libraries (Radix UI) for building design systems”
  • Candidates who have built tools for technical users and are comfortable with time-series data
    — “Experience building tools for technical users (dashboards, data-editing environments)”

Things to consider

  • In-person collaboration is required twice weekly in California or LA
    — “We collaborate in person twice a week—on Mondays and Thursdays”
  • U.S. citizenship or residency is a mandatory requirement for this role
    — “Must be a U.S. citizen, lawful permanent resident”

How to stand out

  • Highlight experience with real-time data visualization and large-scale datasets in your resume
    — “Create intuitive user interfaces for data exploration while optimizing for large real-time datasets”
  • Showcase your ability to design and implement reusable component libraries
    — “Build high-performance data visualization interfaces and reusable component libraries”
  • Emphasize your technical design contributions and clean code practices in interviews
    — “Write clean, maintainable code and participate in technical design discussions”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · TeamLevel · Senior

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

What success looks like

  • Experience building production applications with React, NextJS, and TypeScript
Typical background
5+ years of professional experience building web applications and data-driven tools

Skills & requirements

Required

ReactNext.jsTypeScriptWeb Performance OptimizationModern CSS (tailwind)Component Libraries (radix UI)

Preferred

WebglD3.jsApache EchartsWebassemblyBackground In Scientific Computing Or Technical Data Visualization

Stack & domain

ReactNext.jsTypeScriptWeb Performance OptimizationModern CSSComponent LibrariesTechnical Visualization ToolsWebassemblyBrowser-based ComputationScientific ComputingTechnical Data VisualizationBuilding Tools For Technical UsersSide ProjectsParquetFlinkKafkaRedpandaBeamDuckdbTimescaleQuestdbInfluxdbDruidGithub ActionsAWSAzureGCPDockerKubernetesTerraformCollaborationTechnical Design DiscussionsWeb DevelopmentData VisualizationEngineering

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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