Senior Software Engineer
First Resonance
Senior Software Engineer
First Resonance
Manufacturing software platform for hardware production
We're looking for a full-time Senior Software Engineer to join us in our mission of bringing the ION Factory OS to next-generation hardware builders around the globe. We are looking for engineers who leverage AI coding tools to build end-to-end features with unprecedented speed and quality.
Our newest recruit will join the First Resonance team full-time in Los Angeles, CA (HQ in El Segundo) as a foundational member of our product team.
Are you excited by the opportunity to assist manufacturers working on eVTOLS, rockets, robots, and autonomous vehicles? We support companies tackling society’s greatest challenges: climate change, space exploration, and autonomous transportation.
We pride ourselves on being fast learners and agile executors. If you want to play a key role in the future of hardware and Industry 4.0 by wielding the latest in AI-assisted development, come join us!
End-to-End Feature Ownership: Use AI-augmented workflows (Claude) to build and deploy full-stack features using Python (Backend) and Next.js/TypeScript (Frontend).
API & Data Architecture: Develop high-performance GraphQL mutations and queries; design relational database models in Postgres that reflect complex industrial processes.
Cloud Infrastructure: Build and maintain scalable services on AWS, leveraging modern infrastructure patterns.
AI-Driven Productivity: Lead the team in adopting AI tools to automate boilerplate, refactor legacy logic, and accelerate the "idea-to-production" cycle.
Technical Leadership: Write design specifications and diagrams (UML/System Flow) that guide both human teammates and AI agents.
Reliability: Drive code-level architecture, modularity, and comprehensive testing (Pytest, Jest) to ensure ion remains mission-critical for our customers.
6+ years of technical experience: You’ve built and scaled production-grade software.
AI-Native Workflow: You are "pro-AI" and actively use coding assistants to increase your output and code quality.
Backend Mastery: Expert-level Python skills with a deep understanding of ORMs (e.g., SQLAlchemy) and asynchronous processing.
Modern Frontend: Proficiency in TypeScript, React, and Next.js.
Cloud & Infra: Hands-on experience with AWS ecosystem and deploying multi-tenant SaaS environments.
API Design: Strong experience with GraphQL and architectural patterns like Domain Driven Design (DDD) or Event-Driven systems.
Problem Solver: You enjoy collaborating across departments and "flexing your creative muscle" to solve hardware-world problems with software.
Experience with Infrastructure as Code (Terraform, CDK).
Experience building manufacturing tools or working in high-stakes industrial environments.
Experience writing complex ETL processes for industrial data.
Health & Wellness: Comprehensive medical, vision, dental, and life insurance.
Ownership: Employee Stock Option Plan and 401K.
Flexibility: Unlimited PTO and hybrid work schedule.
Culture: Paid parental leave, team outings, group lunches, and an open office in El Segundo.
Manufacturing software platform for hardware production
First Resonance offers a manufacturing software platform called ION that helps hardware companies manage production from end to end. It combines modules for purchasing parts, inventory, and supply-chain management with real-time visibility and analytics. Engineers and technicians interact via a user-friendly interface to navigate production steps, add comments, attach files, and share feedback, keeping everyone aligned. Unlike fragmented tools, ION provides a single, unified platform that covers procurement, inventory control, regulatory compliance, and analytics, helping teams spot issues quickly and maintain quality. The company’s goal is to enable faster, more efficient, and higher-quality manufacturing for hardware developers, from startups to large manufacturers, by delivering integrated workflows and data-driven insights.
Explore more opportunities at First Resonance