Junior Software Developer - LTX

Reposted 13 Days Ago
London, Greater London, England
In-Office
30K-35K Annually
Junior
Artificial Intelligence • Computer Vision • Mobile • Software
The Role
As a Junior Software Developer, you will contribute to both front-end and back-end features, participate in design discussions, and learn from senior engineers while improving code quality and collaborating with cross-functional teams.
Summary Generated by Built In
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:

  • Contribute to the development of end-to-end features, working on both front-end and back-end components.
  • Participate in brainstorming sessions to discuss feature design, system architecture, and troubleshooting challenges.
  • Implement new features and actively participate in code reviews to learn best practices and improve code quality.
  • Integrate with internal and third-party APIs and systems, gaining hands-on experience with different technologies.
  • Write clean, maintainable, and testable code, while continuously improving coding skills and adopting best practices.
  • Learn from and collaborate with senior engineers, taking opportunities to grow technical knowledge and improve development skills.
  • Work closely with designers, product managers, and marketing teams to build web UI with a great user experience that positively impacts the business.
Your skills and experience
  • Degree in Computer Science or similar.
  • Experience in either front-end or back-end development. 
  • Understanding of backend systems – familiarity with concepts like databases, APIs, and deployment, with a willingness to learn.
  • Familiarity with writing clean, readable code and an eagerness to learn best practices for maintainable production grade development.
  • Proficiency in JavaScript and TypeScript or a strong desire to develop expertise in these languages.
  • Understanding of fundamental computer science concepts (e.g. algorithms, data structures, and basic concurrency)
  • Bonus: Interest or some exposure to Generative AI, Machine Learning, or image processing.
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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Top Skills

APIs
Databases
JavaScript
Typescript
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The Company
547 Employees
Year Founded: 2013

What We Do

Lightricks, an AI-first company, is revolutionizing how visual content is created. With a mission to bridge the gap between imagination and creation, Lightricks is dedicated to bringing cutting-edge technology to the creative and business spaces.
Our AI photo and video generation models, which power our apps and platforms including Facetune, Photoleap, Videoleap, and LTX Studio, allow creators and brands to leverage the latest research breakthroughs, offering endless control over their creative potential. Our influencer marketing platform, Popular Pays, provides creators the ability to monetize their work and offers brands opportunities to scale their content through tailored creator partnerships.
Founded in 2013, Lightricks is backed by prominent investors including Goldman Sachs Growth Equity, Insight Partners, Viola Ventures, ClalTech, Greycroft, Hanaco Venture Capital, Altshuler Shaham Investment Holdings, Harel-Hertz Investment, Qumra Capital House, Migdal Insurance and Financial Holdings, Shavit Capital, and Stonebridge Partners who share our enduring commitment to driving the future of content creation.

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