Lead Software Engineer, Front End

Overview 

Sedaro is hiring a Lead Software Engineer to optimize the performance of our data visualization platform for aerospace simulation. You'll profile and eliminate bottlenecks, optimize how we move massive datasets from backend to browser, and build new visualizations. Our customers use our platform to explore and draw conclusions from simulated what-if scenarios. Your work will enable them to visualize and drill into trends across thousands of related scenarios. 

• Team: Studio, reporting to the Director of Engineering 

• Location: 80% in-person in Arlington, VA 

• U.S. Citizen or permanent resident status required 

Who We Are 

Our mission is simulation at scale. Sedaro runs high-fidelity physics simulations of satellite constellations and connected fleets. Our platform makes massive datasets explorable through 3D playback and multi-dimensional analytics. We're built on React, TypeScript, Cesium, Python, and Kubernetes. Join us as an early employee building the interface layer for AI-augmented engineering and operations. 

Who You Are 

• You enjoy building sophisticated tools that empower users 

• You know the right time for both elegant abstractions and gnarly workarounds 

• You pitch in outside your lane to move the mission forward 

• You keep your own list of sharp corners and find time to fix them 

What You’ll Do 

• Design and build high-performance productivity tools with impactful incremental releases 

• Profile and eliminate bottlenecks across our Cesium-based visualization pipeline and data processing backend 

• Optimize API response times and data throughput for scaling complexity 

• Build performance testing and observability that catches regressions and guides decisions 

• Become an expert on rendering performance, shaping how the team approaches speed and efficiency as we scale 

Benefits 

• Equity 

• Unlimited PTO 

• 401(k) with 4% match 

• 100% premium payment for medical insurance 

• Parental Leave 

• Flexible work schedule with core hours 

• Company provided lunches 3 days a week 

• Industry-leading career development opportunities 

Requirements 

• Bachelor’s degree in computer science or equivalent experience 

• 3+ years of professional experience in software engineering 

• Experience with React and TypeScript 

• Experience profiling and optimizing web application performance (backend APIs, frontend rendering, or both) 

• Experience with frontend automated testing