Backend Engineer Lightning AI is reimagining how AI is built. After launching PyTorch Lightning in 2019, Lightning AI aims to reshape the development of AI products for both academic and commercial use. Our mission is to simplify AI development, making it accessible to everyone—from solo researchers to large enterprises. We focus on removing complexity in building and deploying AI tools, empowering innovators to solve real-world problems. Our platform scales with the latest AI advancements while remaining intuitive and adaptable. We have offices in New York City, San Francisco, and London, backed by investors such as Coatue, Index Ventures, Bain Capital Ventures, and Firstminute. Our Values Move Fast : We act with speed and precision, breaking down big challenges into achievable steps. Focus : We complete one goal at a time with care, collaborating as a team to deliver features with quality. Balance : We promote a healthy work-life balance to sustain performance. Craftsmanship : We pursue excellence and take pride in our work. Minimal : We prioritize simplicity, eliminating unnecessary complexity. What We're Looking For We seek a Backend Engineer to develop and scale the Lightning AI platform, including frontend, CLI, API, billing, security, and integrations. You will own key features, drive development from concept to release, and collaborate with a talented team of engineers, product managers, and designers. This role involves building innovative technology to transform the machine-learning ecosystem. You will join the Blue Squad and report to the Director of Engineering. The position is hybrid, based in our Bay Area office, with a requirement of 2 days in-office per week. The salary range is $120,000 - $250,000. What You'll Do Write readable, testable, and efficient code in Go (Golang). Master our technology stack to develop new features, improve system stability, and enhance performance. Collaborate with engineering and product leaders to develop the Lightning product and set technical direction for major projects. Evaluate, document, and improve technical architecture, tools, and processes. Champion quality, automation, continuous delivery, and reduce technical debt. Mentor engineers on system design, problem-solving, and working in high-uncertainty environments. What You'll Need Extensive experience coding in Go, with a focus on testing, readability, and optimization. Knowledge of backend and frontend systems, API development, CLI tools, billing, and security protocols; frontend experience is a plus. Experience with cloud platforms (AWS, GCP, Azure), containerization (Docker, Kubernetes), and designing scalable, reliable systems. Proven ability to own features and manage end-to-end development. Commitment to quality, automation, and rapid delivery, with experience managing technical debt. Experience as a backend or product engineer in a SaaS environment. Strong collaboration and communication skills. Ability to operate effectively in dynamic, uncertain environments. Benefits and Perks We offer competitive salaries, stock options with a 1-year cliff, and benefits across the globe through Velocity Global. In the US, we provide: Medical, dental, and vision insurance Life and AD&D insurance Flexible paid time off and winter closure Paid family leave $500 monthly meal reimbursement $500 home office stipend $1,000 annual learning stipend Citibike membership (NYC) Gym membership Additional health services We are committed to diversity and inclusion, providing equal opportunities regardless of race, gender, age, disability, or other protected characteristics. We strive to create a culture where everyone can thrive.

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