Hi, we are Storyteq

Storyteq helps marketing and creative teams in top brands scale their creative production and gain control over their marketing campaigns. Through our platform, clients streamline campaign workflows, automate creative production through templates and AI, and activate engaging campaigns that go to market faster. We believe creativity takes time, but creative production shouldn’t. Since 2016 our mission has been to revolutionize the way creative assets are produced and activated. Magic happens when we let technology empower creativity. Our endless curiosity and relentless commitment to our customers lies at the heart of our problem-solving approach, and this shared mission is woven into our values: we dream big, think differently, and are stronger together.

About the job

This is a graphics and systems role that happens to live on the web platform. It is not a typical frontend job, and here’s why. We’ve built a professional ad builder for video, image, and banner creative that runs entirely in the browser, and many clients already use it to automate and scale their creative at volume. Now we’re taking it to the next level with AI, and the rendering and playback engine is what makes that leap possible. It’s the core that turns generated and edited creative into polished, high-quality output in real time. The hard problems here are rendering, performance, and real-time media, not UI plumbing. As a senior engineer, your impact goes beyond shipping features. You’ll shape the architecture of that engine, raise the bar for real-time rendering quality across the team, and help other engineers grow while staying hands-on in the code yourself.

What you’ll own

You’ll own the system that turns a composition of layers, media, and effects into correct pixels, whether that’s a static banner, an image, or a video playing back in real time while the user edits. Concretely, that means:

• Canvas and GPU compositing: Canvas 2D for layout, text, shapes, and vector work, together with WebGL and WebGPU shaders for blending, transitions, color grading, and effects
• A frame-accurate playback pipeline: decode via WebCodecs, keep audio and video in sync, and keep it smooth under real compositions
• The multi-threaded architecture (Web Workers, OffscreenCanvas, transferable buffers) that keeps rendering off the main thread
• Ruthless performance and memory discipline: texture pooling, allocation-free hot loops, and profiling to hunt down every stall
• Using AI as part of how you build, with coding assistants and agents in your daily workflow, and helping shape how we bring AI-powered capabilities into the product itself
• Raising the bar across the team through thoughtful code reviews, mentorship, and shared ownership, and collaborating across teams to deliver end-to-end value

The hard part isn’t any single API. It’s that the browser is a hostile environment for real-time media: one main thread, an unpredictable garbage collector, no direct hardware access, and video frames measured in tens of megabytes. Your job is to win that fight, defending the frame budget frame after frame without a stutter. There’s no framework that does this for you. This is engine-level code, closer to a game engine than to a web app. If that description makes you excited rather than nervous, we should talk.

Requirements

What we’re looking for

Core:

• Graphics programming on the web: SVG and Canvas at a minimum
• Serious JavaScript/TypeScript performance engineering: workers, OffscreenCanvas, memory profiling, and the discipline to allocate nothing in a hot loop
• Genuine understanding of video fundamentals: frames, color, decode and encode, and audio/video synchronization
• 5+ years of hands-on experience delivering graphics, systems, or front-end software in production
• South African citizenship or residency

What makes you senior for this role:

• You make the people around you better through reviews, mentoring, and the standards you set, so the team’s output improves because you’re on it.

Nice to have

• Hands-on WebGL and/or WebGPU, plus shader work (GLSL or WGSL)
• Hands-on WebCodecs
• Prior work on an NLE, creative tool, or media application
• Color management: color spaces, Rec.709/sRGB
• Rust or C/C++ compiled to WASM
• Vue.js 3 experience
• Familiarity with CI/CD workflows and cloud-based deployments
• Experience in a multi-team platform environment with shared components or design systems

What this role is not

We’re not looking for framework expertise. Vue, React, state management libraries: fluency in TypeScript is expected, but none of the app-framework world is what this job is about, and it won’t be how we evaluate you. If you’re looking for a standard product-frontend role, this isn’t it. If you want to build a real-time rendering engine in the browser, it very much is.

Benefits

We Value Diversity

We champion and welcome diversity in our workforce and ensure all job applicants receive equal and fair treatment, regardless of age, race, gender or gender identity, religion, sexual orientation, disability, or nationality.

We are not only committed to increasing the visibility and recognition of talent from under-represented groups within our organisation, but the wider industry too.

At the end of the day, we make sure we take time to look after ourselves, each other, and the planet, because we’re always stronger together.

ITG have a number of community groups available to employees and exist to offer a safe space for like-minded colleagues, with shared interests to connect, socialise and check in with each other.

These include Black ITGers Together, LGBTQ+ Together, Mens Health Together, Muslims Together, Neurodiversity Together, Working Parents and Carers Together and Women In Tech Together.

What's next?

If you found yourself interested in knowing more, drop us your application and someone from our team will be in touch.

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