Startup jobs in United Kingdom

As a Senior Full-Stack Engineer, you'll spearhead the development of LLM-powered products at the forefront of marketing and advertising technologies. Utilizing your expertise in systems architecture and building web applications full-stack, you'll play a pivotal role in designing, implementing, and enhancing our range of AI-driven solutions.

You’ll hold direct responsibility for large components of our web application, collaborating closely with cross-functional teams, including AI engineers, product managers, and designers, to deliver robust and innovative solutions that drive tangible business outcomes.

This role presents an exciting opportunity to shape the future of AI-driven technologies and make meaningful contributions to real-world applications.

The role is linked with our office in London, but we are flexible about hybrid or remote work in the UK.

• Lead the architecture design and the implementation of scalable and secure web applications.
• Ensure the technical feasibility of UI/UX designs and optimize applications for maximum speed and scalability.
• Conduct code reviews and ensure adherence to best practices and coding standards.
• Collaborate closely with cross-functional teams, including AI engineers, product managers and designers, to conceptualize and shape innovative and impactful solutions. Provide mentorship to junior team members and cultivate a culture of collaboration and innovation.
• Stay current with emerging technologies and industry trends and evaluate their potential impact on the business.

• 5+ years of experience in full-stack web development.
• Proven experience with Typescript and React, and building full-stack applications with these technologies.
• Familiarity and experience with the latest advancements in the React ecosystem.
• Extensive experience with system design and data modeling.
• Strong analytical and problem‑solving abilities.
• Excellent communication skills, with the ability to explain complex technical concepts to non-technical stakeholders. Demonstrated leadership experience, with the ability to guide and inspire a team.

• A dynamic role at the forefront of AI marketing technology with ample opportunities for personal and professional growth.
• Unique opportunity to join on the ground floor of a fast-moving startup building at the center of AI.
• Tackle challenging problems while disrupting the $300BN legacy martech industry.
• Join an experienced team where you will have immediate ownership and impact.
• Competitive salary and bonus appropriate for experience and company stage.
• Significant equity package appropriate for company stage.
• Full medical, dental and vision benefits.
• PTO and remote work flexibility.

Bluefish believes that AI represents the next major chapter of the internet – and that consumers will increasingly use AI to consume information and media online. On this new AI internet, brands will need new tools and technologies to tell their stories to consumers – and a new marketing ecosystem will be created around AI. Bluefish is building the platform that helps brands engage consumers on this new AI channel, with powerful enterprise tools to manage how their brand is represented in AI.

The Bluefish team is a tight-knit group of martech industry veterans who previously helped build foundational ad-tech platforms now owned by Meta and Microsoft. The company is backed by leading AI and data focused investors, including Crane Ventures, Swift Ventures, BloombergBeta, Firebolt Ventures, and Laconia Capital.

We are a globally distributed team, with business operations based in New York City and engineering based in Europe.