Senior Product Engineer [Backend] (£80k-£100k + Equity) at Userled.io

Job Title

Senior Product Engineer (Backend)

Salary

£80k-£100k + Equity

Company Description

Userled.io – VC-backed AI marketing startup backed by LocalGlobe

Job Description

Join a high-growth startup as a core engineer building the future of Generative Marketing. You will own product areas end-to-end in a PM-free environment, designing secure backend systems for a platform used by Stripe and Canva. This is a high-impact role where you’ll solve complex architectural challenges while directly influencing product strategy.

Location

London, UK

Why this role is remarkable

• Exceptional autonomy in a PM-free culture where engineers talk directly to customers and own the entire product roadmap from first principles.
• Backed by top-tier investors including LocalGlobe and the founders of Incident.io and Maze, with a client list featuring Stripe and Datadog.
• High-density talent environment with a team from backgrounds like Thought Machine and PlayStation, offering significant equity in an early‑stage trajectory.

What you will do

• Design and implement scalable backend architectures using Golang and AWS to support hyper‑personalized marketing campaigns at scale.
• Lead the development of high‑performance REST APIs for both internal services and public‑facing consumer applications.
• Collaborate across the stack (Go/TS) to make strategic technical decisions that directly resolve complex B2B buyer engagement challenges.

The ideal candidate

• Strong technical depth in typed languages such as Go, Java, Rust, or C#, with a focus on building highly concurrent, secure systems.
• Proven experience with modern cloud architectures (AWS/GCP) and data technologies like Kafka, Redis, and BigQuery.
• A product‑minded engineer who thrives in ambiguity and enjoys taking full ownership of features from customer discovery to production.

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