Senior Full Stack Developer – R&D in London
Senior Full Stack Developer – R&D

Senior Full Stack Developer – R&D in London

London Full-Time 60000 - 80000 £ / year (est.) Home office possible
Contenta AI, Ltd.

At a Glance

  • Tasks: Design and build innovative full-stack applications using the latest tech.
  • Company: Join Contenta AI, a cutting-edge platform for content creators and publishers.
  • Benefits: Enjoy remote work, competitive salary, and opportunities for professional growth.
  • Other info: Be part of a dynamic team with a focus on R&D and mentorship.
  • Why this job: Shape the future of GenAI in media while working with top industry veterans.
  • Qualifications: 5+ years in full-stack development with strong JavaScript and TypeScript skills.

The predicted salary is between 60000 - 80000 £ per year.

Location: Remote – Based in United Kingdom or Ireland

Department: Publisher Growth & Revenue

About Contenta AI

ContentaAI is a next‑generation Agentic AI platform built for content creators, publishers, and media groups. We empower editorial and monetization teams with AI‑driven tools for content creation, SEO optimization, trend detection, collaboration, and advanced monetization via hybrid header bidding and programmatic strategies. Our mission is to make content creation smarter and monetization more effective at scale.

Founded by media and adtech veterans from companies like Google and Microsoft, ContentaAI is backed by industry leaders and is rapidly expanding across Europe and beyond.

Role Overview

We’re looking for a Senior Full Stack Developer— R&D to join our core engineering team. You’ll play a crucial role in developing the foundational architecture of our SaaS platform—from LLM‑powered content creation tools to real‑time monetization intelligence systems. You’ll work across the stack and closely with product and AI teams to design, build, and iterate on innovative solutions that serve both editorial and ad‑ops teams. If you’re excited about shaping the future of GenAI applications in media and thrive in a fast‑paced, early‑stage environment, we’d love to meet you.

Key Responsibilities

  • Design and build scalable full‑stack applications using React / Next.js, Node.js, and Nest.js
  • Integrate LLM APIs (e.g., OpenAI, Claude) including streaming and retrieval‑augmented generation
  • Build and optimize back‑end infrastructure with both relational and NoSQL databases
  • Develop secure and scalable REST APIs, including authentication and webhook integrations
  • Work with Prisma ORM to streamline data access across services
  • Write and maintain clean, testable, and well‑documented code
  • Collaborate with Product and AI teams to experiment, iterate, and validate hypotheses
  • Participate in architectural discussions, R&D explorations, and roadmap planning
  • Contribute to the engineering culture by mentoring teammates and advocating for best practices

Requirements

  • 5+ years of experience in full‑stack web development
  • Strong proficiency in JavaScript and TypeScript
  • Deep experience with React, Next.js, and server‑side rendering (SSR)
  • Solid experience with Node.js, Nest.js, or Express.js
  • Experience with Prisma ORM and both SQL and NoSQL databases
  • Hands‑on experience with REST API development and integration
  • Familiarity with webhook systems and asynchronous job processing
  • Experience integrating LLMs, including streaming APIs (OpenAI, etc.)
  • Excellent problem‑solving skills and product‑oriented mindset
  • Strong communication skills and ability to work in a remote, async‑first team

Nice to Have

  • Background in AdTech, including SSPs, DSPs, Header Bidding, and Prebid.js
  • Experience working in early‑stage startups or R&D‑focused roles
  • Knowledge of Tailwind CSS, Shadcn UI, or similar component libraries
  • Experience integrating fintech or multinational

Senior Full Stack Developer – R&D in London employer: Contenta AI, Ltd.

Contenta AI is an exceptional employer that fosters a dynamic and innovative work culture, perfect for those passionate about shaping the future of content creation and monetization. With a strong emphasis on employee growth, we offer opportunities to collaborate with industry veterans and engage in cutting-edge R&D projects, all while enjoying the flexibility of remote work from anywhere in the UK or Ireland. Join us to be part of a forward-thinking team that values creativity, collaboration, and continuous learning.
Contenta AI, Ltd.

Contact Detail:

Contenta AI, Ltd. Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Senior Full Stack Developer – R&D in London

Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work in R&D or at companies like Contenta AI. A friendly chat can lead to insider info about job openings and even referrals.

Tip Number 2

Show off your skills! Create a portfolio showcasing your best projects, especially those involving React, Node.js, or LLM integrations. This gives potential employers a taste of what you can do and sets you apart from the crowd.

Tip Number 3

Prepare for technical interviews by brushing up on your coding skills and understanding the latest trends in full-stack development. Practice common interview questions and be ready to discuss your past projects in detail.

Tip Number 4

Don’t forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you’re genuinely interested in joining our team at Contenta AI.

We think you need these skills to ace Senior Full Stack Developer – R&D in London

Full Stack Development
JavaScript
TypeScript
React
Next.js
Node.js
Nest.js
REST API Development
Prisma ORM
SQL Databases
NoSQL Databases
LLM Integration
Asynchronous Job Processing
Problem-Solving Skills
Communication Skills

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Senior Full Stack Developer role. Highlight your proficiency in JavaScript, React, and Node.js, and don’t forget to mention any experience with LLM APIs or REST API development.

Craft a Compelling Cover Letter: Your cover letter is your chance to show us your personality and passion for the role. Share why you’re excited about working with GenAI applications and how your background aligns with our mission at Contenta AI.

Showcase Your Projects: If you’ve worked on relevant projects, whether personal or professional, make sure to include them. We love seeing real examples of your work, especially if they involve full-stack applications or innovative solutions in R&D.

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows us you’re keen on joining our team!

How to prepare for a job interview at Contenta AI, Ltd.

Know Your Tech Stack

Make sure you’re well-versed in the technologies mentioned in the job description, like React, Node.js, and Prisma ORM. Brush up on your JavaScript and TypeScript skills, and be ready to discuss how you've used these tools in past projects.

Showcase Your Problem-Solving Skills

Prepare to share specific examples of challenges you've faced in full-stack development and how you overcame them. This will demonstrate your problem-solving abilities and product-oriented mindset, which are crucial for the role.

Understand the Company’s Mission

Familiarise yourself with Contenta AI's mission and the impact of their products on content creation and monetisation. Being able to articulate how your skills align with their goals will show your genuine interest in the position.

Ask Insightful Questions

Prepare thoughtful questions about the team dynamics, R&D processes, and future projects. This not only shows your enthusiasm but also helps you gauge if the company culture is the right fit for you.

Senior Full Stack Developer – R&D in London
Contenta AI, Ltd.
Location: London

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