Bjak
Frontend Engineer
Get notified of more jobs like this · No spam, ever
How your CV stacks up
Upload your CV to see how well it fits this job role
?%
About ActAI
There are over 5 billion users using basic applications today such email, notes, tasks, calendar and they're not AI-native. Our mission is to build proactive applications for anyone in the world, who are not used to complex prompting. We aim to bring intelligence to conversations, errands, organising and workflows, with minimal to no prompting. Our application focuses on achieving high reliability for long-running workflows, persistent context, and real-world task completion. We believe products will greatly reduce hallucinations.
Our objective is to organise anyone's life.
Role
As a Web Frontend Engineer, you will build the core web experiences, including Chat, Notes, Calendar, Docs, and Sheets. You will own complex, highly interactive product surfaces from architecture through implementation, working closely with product, design, backend, and AI engineers to make AI a native part of how users communicate, write, organise, and work.
What You'll Own
- Build major web experiences across Chat, Notes, Calendar, Docs, and Sheets.
- Develop complex interactions including real-time messaging, collaborative editing, rich-text editing, scheduling, tables, and spreadsheets.
- Build reusable frontend architecture and components that work consistently across ActAI applications.
- Integrate streaming AI responses, proactive actions, and model-driven experiences directly into product workflows.
- Own frontend performance, responsiveness, reliability, and accessibility across browsers and devices.
- Work closely with product and design to take ideas from prototype to production quickly.
Reasons to use Rodeo
Start with a chat, not a search bar
Grad scheme, placement, apprenticeship? Not sure what you want yet — that's fine. Your agent talks it through with you and turns "I have no idea" into a shortlist.
It searches the market for you
Every day your agent scans the market matching roles against what actually matters to you, not just keywords on a CV.
Only hits
No noise. No "maybe this fits." Just roles with a clear explanation of why they're right — and where to focus when applying.
What We're Looking For
- Strong experience building complex, production web applications using React, TypeScript, and modern frontend technologies.
- Deep understanding of frontend architecture, state management, browser APIs, and performance.
- Experience building highly interactive products such as chat, collaboration, productivity, document editing, calendars, or workspaces.
- Experience with real-time systems, WebSockets, streaming APIs, or collaborative interfaces.
- Strong product and UI judgment with attention to interaction details.
- Able to independently own features from technical design through production.
Outcomes
- Users can communicate, write, organise, and collaborate seamlessly across Chat, Notes, Calendar, Docs, and Sheets.
- Complex interactions such as group messaging, editing, scheduling, and collaboration feel fast and reliable.
- AI capabilities are integrated naturally into product workflows rather than added as separate chatbot experiences.
- Frontend architecture remains fast, maintainable, and reusable as ActAI expands into new applications and workflows.
Get help with your application
Your very own career expert that helps elevate your application to the next level.
Tech Stack
- TypeScript
- React.js / Next.js
- HTML / CSS
- WebSockets / streaming APIs
- Node.js
- REST / GraphQL APIs
How We Work
The best products today in the world were built by small, world-class teams. We are a high talent density and hands-on team. We make decisions collectively and move at rapid speed, striking a balance between shipping high-quality work and learning. Joining our team requires the ability to bring structure, exercise judgment, and execute independently. Our goal is to put in the hands of our users a truly magical product.
Interview Process
If there appears to be a fit, we'll reach out to schedule 3, but no more than 4 interviews. Applications are evaluated by our technical team members. Interviews will be conducted via virtual meetings and/or onsite. We value transparency and efficiency, so expect a prompt decision. If you've demonstrated the exceptional skills and mindset we're looking for, we'll extend an offer to join us and help bring practical AI benefits to billions of users globally.
“It took my CV and asked me questions relevant to understanding what kind of jobs to suggest for me. Suggestions were almost perfect. Jobs were exactly what I’ve been looking for.”
Jessica, London
Location