Principal Graphics Software Engineer

Lumina platforms; Greater London; On-site; GBP 60,000 - 100,000; Full time

Job summary

An innovative company is seeking a Principal Software Engineer to lead the development of a cutting-edge video creation platform. This role offers the opportunity to shape the future of creative tools by leveraging advanced AI technologies and building a seamless user experience. With a focus on performance, scalability, and collaboration, you'll work closely with a talented team to create tools that empower users to produce professional-grade content effortlessly. Join this dynamic environment where your contributions can significantly impact the creative landscape and help redefine how stories are told.

Qualifications

• 7+ years of software engineering experience across frontend and backend.
• Experience with creative or design tools like video editors.
• Strong systems thinking for complex technical decisions.

Responsibilities

• Lead architecture and development of an interactive video platform.
• Design performant systems for real-time video editing and rendering.
• Prototype and integrate AI-powered features for enhanced creativity.

Skills

Software Engineering

React

TypeScript

Rust

Python

AI/ML Trends

Systems Thinking

Tools

FFmpeg

WebRTC

WebSockets

Job description

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Co-Founder & CTO @ Lumina Platforms | Building GenAI-Powered Creative Agents | BIV Top 40 Under 40

About the Role ~

At Lumina Platforms, we’re reimagining the future of content creation — blending intuitive design, powerful editing tools, and AI-native capabilities into a single seamless, agentic, co-creative experience. Our platform will empower creators, marketers, and teams to produce professional-grade video content with unprecedented ease, speed, and intelligence.

We’re looking for a Principal Software Engineer to play a lead role in building the next-generation platform orchestrated through a DOM-like structure written in Rust. We’re looking for engineers who obsess over correctness, performance, and building expressive tools that scale beautifully.

You’ll be at the heart of our technical architecture — shaping the core experience and symbiotic relationship between AI & Platform that will transform creativity in the coming years.

• Lead architecture and development of our interactive video creation platform
• Design and implement performant systems for real-time video editing, animation, and rendering
• Collaborate with product and design to bring a fluid, intelligent, canvas-like creative experience to life
• Stay ahead of the curve in emerging AI and video tech, helping us build not just for now, but for what’s next
• Set high standards for code quality, performance, scalability, and team collaboration
• Prototype and integrate AI-powered features such as:
• Smart editing suggestions
• Auto-generated captions, voiceovers, or transitions
• Dynamic scene assembly or auto-layout tools

What You Bring ~

Technical Expertise

• 7+ years of software engineering experience, ideally across both frontend and backend
• Deep experience with React, TypeScript and custom rendering (Canvas/WebGL/WebGPU)
• Experience working with Rust and Python stacks
• Experience building creative or design tools (e.g., video editors, animation UIs, timelines)
• Strong systems thinking, capable of owning complex technical decisions across the stack

AI-Forward Thinking

• Familiarity with current and emerging AI/ML trends in video and media
• Transcription and speech-to-text (e.g., Whisper, Deepgram)
• Vector embeddings, retrieval-augmented generation, or on-device inference
• Curiosity and imagination around how AI can amplify creativity, not just automate tasks

Nice to Have

• Experience with FFmpeg, media pipelines, GPU compute, or cloud rendering infrastructure
• Knowledge of WebRTC, WebSockets, or real-time collaboration tooling
• Open-source contributions in creative tech, media processing, or AI frameworks
• Lead the platform — you’ll have a pivotal role in defining how the entire product works
• Work on bleeding-edge tech at the intersection of creativity, video, and AI
• Join a small, high-caliber team with a product-first mindset and design obsession
• High impact, strong ownership, and equity upside in a fast-growing space
• Help shape a product that could empower millions to tell better stories

How to Apply ~

Tell us a bit about yourself — what drives you as a builder and how you think AI will shape the future of creative tools. Send along:

• Your portfolio or projects you’ve worked on (personal or professional)
• GitHub, LinkedIn, or anything else you’d like to share

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Engineering and Information Technology

• Industries

  Software Development

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