Fullstack Engineer

About the role

Lightning AI is building an end-to-end platform for the development, training, and deployment of machine learning systems. We are seeking a Fullstack Engineer to own feature development across our frontend, CLI, and backend infrastructure. You will work within a collaborative environment to scale our platform for researchers and enterprise users. In this capacity, you will be responsible for translating complex product requirements into robust technical solutions that span the entire stack. The role demands a proactive approach to identifying bottlenecks and implementing fixes that enhance the overall user experience. You will partner closely with cross-functional teams to ensure alignment between technical execution and business objectives. Your work will directly influence the reliability and scalability of a platform used by teams ranging from academic labs to large enterprises.

Key facts

What you'll do

• Architect and implement new features using React combined with either Python or Go to ensure responsive and efficient user interactions.
• Oversee the full lifecycle of technical projects, moving from initial discovery and design phases through rigorous testing and final production deployment.
• Partner with product strategists and design specialists to refine and iterate on high-quality platform improvements that meet user needs.
• Analyze existing system architecture to identify weaknesses and apply optimizations that improve performance, scalability, and long-term stability.
• Establish and maintain automation pipelines and continuous delivery practices to streamline releases and reduce technical debt across the codebase.
• Guide and mentor junior team members by sharing knowledge on system design patterns and effective problem-solving strategies.
• Evaluate emerging technologies and tools to determine their applicability for enhancing the efficiency and capability of the platform.
• Communicate technical trade-offs and progress clearly to both technical and non-technical stakeholders to ensure transparency and alignment.

Requirements

• Demonstrate proficiency in React and a strong command of either Go or Python for backend services.
• Bring professional experience as a Fullstack Engineer gained within a fast-paced SaaS company environment.
• Show a solid grasp of fundamental software engineering principles, including version control, testing, and deployment lifecycles.
• Prove the ability to take full ownership of features, driving them from initial concept through to successful production launch.
• Exhibit comfort working within fast-paced, high-uncertainty environments where priorities can shift rapidly.
• Hold the right to work in the location of this position without requiring sponsorship.
• Commit to a minimum of two days per week working from one of our office locations.
• Understand that visa sponsorship is not available for this role, meaning candidates must already have the necessary authorization to work in the selected country.

Skills & tools

• React
• Go (Golang)
• Python

Nice to have

The source information does not specify any preferred or nice-to-have qualifications beyond the core requirements and skills. All listed criteria represent mandatory eligibility for the position as defined in the original job description.

Practical notes

This position requires a commitment of at least two days per week in the office, ensuring regular collaboration with the team. We regret that we cannot provide visa sponsorship for this role, and candidates must possess the right to work in their chosen location. Compensation for this position is highly competitive and includes a discretionary bonus, equity in the form of RSUs, and comprehensive benefits designed to support long-term wellbeing. These benefits encompass medical, dental, and vision coverage, along with retirement planning through 401(k) matching or pension contributions. The package also features unlimited PTO, paid parental leave, stipends for professional development, and a four-week paid sabbatical after four years of service. The company maintains a structured schedule that includes a two-week winter break and provides in-office meals to support the team during working days.

Deadline

The source material provided does not include an application deadline or submission timeline for this role. Candidates are encouraged to review the compensation band and location specifics carefully during the application process. The engagement level is confirmed as full-time, indicating a standard, ongoing commitment rather than a temporary or contract-based assignment. Please ensure you meet the location requirements regarding work authorization before proceeding with your application. The listed locations represent primary hubs where the team operates, and the successful candidate is expected to integrate fully into one of these environments. The role is designed to support the long-term strategic goals of the company as it scales its infrastructure. Compensation is structured to reflect the seniority and impact of the position within the organization. No benefits are offered on a prorated basis, and eligibility typically aligns with standard employment terms. The expectation for in-office days is part of fostering a cohesive team culture. This position is not eligible for external visa sponsorship, so domestic candidates or those already authorized to work in the respective countries are strongly encouraged to apply. The absence of a specified deadline implies that the role will remain open until filled based on the quality of the candidate pool.