Senior Product Engineer

Spain💼 Full-time🗓 2026-10-02 → 2026-10-07

Core

Tech Lead responsible for building scalable backend services, frontend applications, and defining technical direction for an AI-driven B2B sales platform.

Role type

Senior Tech Lead (Full-Stack)

Builds

AI-native GTM platform with prospecting, enrichment, and outreach features for B2B sales teams

Domain

B2B SaaS, Sales Technology, AI

Deliverable

production ML models | product features

Required skills

TypeScript, Node.js, React, PostgreSQL, API design, async workflows, system debugging, observability, performance optimization (via careerplan.io/jobs/4996480101-senior-product-engineer-at-enginy)

Preferred skills

Temporal, distributed systems, microservices, UI performance optimization, CI/CD, B2B SaaS domain knowledge

Technologies

React, TypeScript, Node.js, PostgreSQL, Temporal, GitHub Actions

Responsibilities

Build and maintain scalable backend services; develop responsive frontend web applications; design production-grade APIs and integrations; optimize performance and debug complex issues; shape engineering practices and architecture; collaborate cross-functionally to ship end-to-end functionality

Seniority

Senior, hands-on IC with technical leadership

About Enginy

Enginy is a Barcelona-based startup on a mission to revolutionize how B2B sales and prospecting teams operate. Our cutting-edge AI-driven lead generation technology empowers sales teams to focus on what truly matters: selling. By automating manual prospecting, we help optimize workflows, ensuring a predictable and scalable sales pipeline—no wasted time, just results. After successfully raising €5 million in a landmark seed funding round, we are looking to grow our teams and scale in key markets. Enginy AI is a Barcelona-based startup on a mission to revolutionize how B2B sales and prospecting