Senior Full-Stack Developer - Ltx

Who we are

Lightricks is an AI-first company creating next-generation content creation technology for businesses, enterprises, and studios with a mission to bridge the gap between imagination and creation. At our core is LTX-2, an open-source generative video model, built to deliver expressive, high-fidelity video at unmatched speed. It powers both our own products and a growing ecosystem of partners through API integration.

The company is also known globally for pioneering consumer creativity through products like Facetune, one of the world’s most recognized creative brands, which helped introduce AI-powered visual expression to hundreds of millions of users worldwide. We combine deep research, user-first design, and end-to-end execution from concept to final render, to bring the future of expression to all.

Why Join Us

We’re here to push the boundaries of what’s possible with AI and video - not for the buzz, but for the craft, the challenge, and the chance to make something genuinely new.

We believe in an environment where people are encouraged to think, create and explore. Real impact happens when people are empowered to experiment, evolve, and elevate together.

At Lightricks, every breakthrough starts with great people and a collaborative mindset. If you're looking for a place that combines deep tech, creative energy, and zero buzzword culture, you might be in the right place.

What you will be doing

You will be part of the LTX team. Our team is developing a revolutionary video creation platform built from the ground up with bleeding edge generative AI technology. Each member of our team is responsible for every aspect of our product, from software design to coding, testing, code reviews and automatic deployment to production. We are lean, agile and pragmatic. We practice software engineering best practices and we care about creating beautiful and performant web applications. Most importantly we are passionate engineers who love to build amazing products with technology that feels nothing short of magical.

Your day-to-day job will involve:

• Develop end-to-end features. From the widgets and UI that drives them, to the architecture in the front and back ends, all while having a deep understanding of the generative AI that enables and constraints them.
• Brainstorming feature design, system architecture improvements and troubleshooting.
• Work hands on implementing new features, and doing code review.
• Integrate with internal and 3rd party APIs and systems.
• Write clean, maintainable and testable code, and inspire others to do the same.
• Mentor junior developers and inspire them to be great developers.
• Work with designers, product and marketing to create beautiful Web UI with a great UX that has a meaningful impact on the business. 

Your skills and experience

• 6+ years of experience in the front end realm, which includes experience with at least one front end framework such as: React, Angular, Vue, etc.
• Experience working on production grade backend systems, including understanding of queueing systems, databases, containers and deployment frameworks.
• Deep knowledge and mastery of JavaScript, TypeScript and its internals.
• Deep knowledge of computer science including (but not limited to): Operating Systems, Algorithms, Concurrency and Data Structures.
• Experienced writing maintainable production grade code.
• Understanding of Generative AI and Machine Learning- a bonus 
• Understanding of image processing- a bonus

Benefits

• Stock Options.
• Private Medical Insurance (Optical & Dental cover) including your loved ones.
• Life Assurance.
• £3,000p/a Transport Allowance.
• £750p/a allowance for Wellbeing & Professional Development.
• Free on-site lunches, coffee, breakfast & snacks.
• Pension Contributions (7%).
• Holiday (25 days).
• Seasonal & Anniversary Vouchers.
• Hybrid & Flexible working.
• Cool office space in central London.
• Enhanced Parental Leave.
• Cycle-to-work Scheme.
• Season Ticket Loan.
• Volunteering Opportunities.
• Frequent social activities - away-days, happy hours, team building, yoga, creative workshops.

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