Senior Backend Engineer (Remote In Portugal)

Talentco; Lisboa; Remote; EUR 100,000 - 150,000; Full time

Job summary

TalentCo is hiring senior backend engineers to join a fast-growing AI startup in Portugal, with a fully remote arrangement within the country. You will build scalable backend services powering real-time AI-driven workflows, collaborating with AI researchers, ML engineers, and product teams to deliver enterprise-grade solutions.

The role emphasizes production-grade code, minimal dependencies, and scalable cloud architectures on AWS, GCP, or Azure.

Qualifications

• 6+ years of hands-on backend experience in production environments.
• Backend-focused with strong Node.js and Typescript skills.
• Experience with AI-powered applications, chat interfaces, and enterprise-scale systems.

Responsibilities

• Develop scalable backend services powering real-time AI workflows.
• Collaborate with AI researchers, ML engineers, and product teams to integrate LLMs and RAG into production apps.
• Build enterprise-grade solutions with robust, minimal-dependency code and scalable cloud architectures.

Skills

Node.js

Typescript

Cloud infrastructure

LLMs

Real-time AI

API design

Tools

AWS

GCP

Azure

Job description

TalentCo are delighted to be working with a fast-growing Agentic AI startup looking to hire several high-calibre Senior Backend Engineers into their growing engineering team in the Portugal, having recently closed a significant seed funding round. This hire can be based fully-remote anywhere in Portugal, for this Silicon Valley headquartered startup. You will be at the forefront of building and scaling AI-powered applications, transforming how enterprises interact with intelligent agents.

You'll focus on developing scalable back-end systems that power real-time AI-driven workflows. This role requires strong software engineering skills, a deep understanding of backend development, and the ability to work in a fast-paced, AI-first environment. You'll collaborate with AI engineers, AI researchers, full-stack engineers and product teams to build enterprise-grade solutions that enable seamless AI-human interactions. Design and build applications that power AI-driven workflows for enterprise users.

Build scalable backend services that support real-time AI interactions, knowledge retrieval, and automation. Work closely with AI researchers and ML engineers to integrate LLMs, Retrieval-Augmented Generation (RAG), and automation into production-ready applications. Ship robust, minimal-dependency code that performs efficiently in enterprise environments. Continuously iterate and refine AI-driven products, balancing user needs with technical feasibility. We want to hear from you if you have:

6+ years of hands-on experience building production applications, having worked in high-bar engineering environments, particularly startups or scale-ups. A backend focus, with proficiency in modern web technologies, namely Node.Js and Typescript Strong knowledge of cloud infrastructure (AWS, GCP, or Azure) and scalable architectures. Understanding of AI-powered applications, including LLMs, chat interfaces, and agentic workflows. Ability to work in a fast-paced, high-autonomy environment, solving complex problems and delivering impact. Strong collaboration skills, with experience working in cross-functional teams with engineers, designers, and AI researchers. What do they offer?

Salary between €100k-150k dependent on experience