Fullstack Engineer

About the role

We’re looking for a Fullstack Engineer to help develop and scale the Lightning AI platform across the frontend, CLI, APIs, and core backend systems. In this role, you’ll take ownership of key features and drive them end-to-end, working closely with engineering, product, and design to ship high-quality, iterative improvements. This is an opportunity to build systems that support real-world machine learning workloads at scale.

Responsibilities

• Write readable/testable/efficient code in React and either Python or Go (Golang).
• Build deep expertise in our technology stack to deliver new features, improve system stability, and increase overall performance.
• Partner with engineering and product leaders on developing the Lightning product while using your experience to set the technical direction for large projects.
• Evaluate, strengthen, and document technical architecture, tools, and processes.
• Maintain high standards for software quality, implement automation, drive continuous delivery, and reduce time to production while proactively reducing technical debt.
• Mentor and coach engineers on system design, operating in high uncertainty, and problem-solving to create a supportive, inclusive environment where each engineer can grow.

Requirements

• Proficiency in React and either Go (Golang) or Python
• Strong understanding of software engineering principles and lifecycle
• Hands-on experience as a Fullstack Engineer in a SaaS technology company
• Proven ability to take ownership of key features and drive end-to-end development
• Communication and collaboration with engineers, product managers, and designers
• Ability to operate in high uncertainty and rapidly changing environments

Qualifications

• Experience with cloud platforms (AWS, GCP, Azure)
• Experience with CI/CD pipelines
• Experience with databases (PostgreSQL, MySQL, MongoDB)
• Experience with version control systems (Git)
• Experience with microservices architecture

Skills

• Experience with RESTful API design and implementation
• Experience with front-end frameworks (React, Vue.js, Angular)
• Experience with back-end frameworks (Node.js, Django, Flask)
• Experience with distributed systems and microservices
• Experience with containerization (Docker, Kubernetes)
• Experience with monitoring and logging (Prometheus, ELK Stack)
• Experience with testing frameworks (Jest, Mocha, PyTest)

Benefits

• Comprehensive medical, dental and vision coverage (U.S.); Private medical and dental insurance (U.K.)
• Retirement and financial wellness support (U.S.); Pension contribution (U.K.)
• Generous paid time off, plus holidays
• Paid parental leave
• Professional development support
• Wellness and work-from-home stipends
• Flexible work environment

Pay

The anticipated annual base salary range for this role is: $120,000 - $250,000 USD

Schedule

This role is based in one of our hubs (NYC, SF, Seattle, or London), with a minimum of 2 in-office days per week and occasional team and company offsites. We are not able to provide visa sponsorship for this position at this time.