Senior Product Engineer Backend (£80k-£100k + Equity) at VC-backed generative marketing SaaS

Senior Product Engineer Backend

Salary: £80k-£100k + Equity

Company Description: VC-backed generative marketing SaaS

Job Description: As a Senior Product Engineer, you will own critical product areas, making high-impact technical and strategic decisions. You will design secure, concurrent backend systems and modern cloud architectures while working in a high-ownership environment without traditional PMs. You'll collaborate across the stack to deliver world-class experiences that revolutionize how B2B teams engage buyers.

Location: London, UK

Why this role is remarkable:

• Take full end-to-end ownership of product and roadmap decisions in a high-autonomy culture without Project Managers.
• Join an early-stage team on an incredible growth trajectory, backed by top-tier VCs in the generative AI marketing space.
• Enjoy premium perks including a Shoreditch office with a private gym, team off-sites to places like Corfu, and high-spec Apple hardware.

What you will do:

• Design and implement scalable architectures for new features using Golang, TypeScript, and AWS cloud services.
• Lead projects from first principles, making critical product decisions based directly on customer interactions and feedback.
• Design and maintain high-performance internal and public REST API contracts to support a rapidly growing user base.

The ideal candidate:

• Proven experience designing secure, highly concurrent backend systems and message-driven architectures in modern cloud environments.
• Strong proficiency in Golang or similar languages, with a desire to contribute across the full stack when necessary.
• Excellent communication skills and a product-focused mindset that values high-quality user experiences and clean documentation.

Next steps

Step 1. Visit our website. Step 2. Click 'Talk to Jack'. Step 3. Talk to Jack so he can understand your experience and ambitions. Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role. Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction. Step 6. If not, Jack will find you excellent alternatives. All for free.